Safran NetClock 9400 Series User Manual

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ELECTRONICS & DEFENSE

NetClock

9400

SERIES

User Manual

Document Part No.: 1209-5000-0050

Revision: 23

Date: 29-November-2024

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Page 1 ELECTRONICS & DEFENSE NetClock 9400 SERIES User Manual Document Part No.: 1209-5000-0050 Revision: 23 Date: 29-November-2024...
Page 3 Safran for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Safran reserves the right to make changes without further notice to any products herein. Safran makes no warranty,...
Page 4 Blank page. NetClock User Reference Guide...
Page 5: Table Of Contents
1.5 Inputs & Outputs 1.5.1 NetClock 9483: Standard Outputs 1.5.2 NetClock 9483: Optional Outputs 1.5.3 NetClock 9489 Standard Inputs and Outputs 1.6 NetClock 9400 Series Front Panels 1.6.1 NetClock 9483 Front Panel 1.6.2 NetClock 9489 Front Panel 1.6.3 Front Panel Keypad, and Display 1.6.3.1 Using the Keypad...
Page 6 1.9.4 The TOOLS Menu 1.10 Specifications 1.10.1 Input Power 1.10.1.1 Fuses 1.10.2 GNSS Receiver 1.10.3 RS-232 Serial Port (Front Panel) 1.10.4 RS-232 Serial Port (Rear Panel; NetClock 9483 Only) 1.10.5 RS-485 Serial Port 1.10.6 10/100 Ethernet Port 1.10.7 IRIG Output (NetClock 9483 Only) 1.10.8 Protocols Supported 1.10.9 1PPS Output 1.10.10 10 MHz Output (NetClock 9483 Only)
Page 7 2.10 Powering Up the Unit 2.11 Setting up an IP Address 2.11.1 Dynamic vs. Static IP Address 2.11.2 Assigning a Static IP Address 2.11.2.1 Setting Up an IP Address via the Front Panel 2.11.2.2 Setting Up a Static IP Address via a DHCP Network 2.11.2.3 Setting Up an IP Address via the Serial Port 2.11.2.4 Setting up a Static IP Address via Ethernet Cable 2.11.3 Setting Up a Temporary IP Address Remotely...
Page 8 2.15.12.6 Testing NTP over Anycast 2.15.13 NTP Orphan Mode 2.15.14 Host Disciplining 2.15.14.1 Enabling Host Disciplining 2.15.15 NTP Expert Mode 2.15.16 Safran Technical Support for NTP 2.16 Configuring Input References 2.17 Configuring Outputs 2.17.1 The Outputs Screen 2.17.2 The 1PPS and 10 MHz Outputs 2.17.2.1 Configuring a 1PPS Output...
Page 9 2.17.3 Configuring Optional Outputs 2.17.4 Network Ports 2.17.5 Signature Control CHAPTER 3 Managing Time 3.1 The Time Management Screen 3.2 System Time 3.2.1 System Time 3.2.1.1 Configuring the System Time 3.2.1.2 Timescales 3.2.1.3 Manually Setting the Time 3.2.1.4 Using Battery Backed Time on Startup 3.2.2 Timescale Offset(s) 3.2.2.1 Configuring a Timescale Offset 3.2.3 Leap Seconds...
Page 10 3.3.5.1 Reviewing the GNSS Reference Status 3.3.5.2 Determining Your GNSS Receiver Model 3.3.5.3 Selecting a GNSS Receiver Mode 3.3.5.4 Setting GNSS Receiver Dynamics 3.3.5.5 Performing a GNSS Receiver Survey 3.3.5.6 GNSS Receiver Offset 3.3.5.7 Resetting the GNSS Receiver 3.3.5.8 Deleting the GNSS Receiver Position 3.3.5.9 Manually Setting the GNSS Position 3.3.5.10 GNSS Constellations 3.3.5.11 A-GPS...
Page 11 4.3.1.1 Types of Accounts 4.3.1.2 About "user" Account Permissions 4.3.1.3 Rules for Usernames 4.3.1.4 Adding/Deleting/Changing User Accounts 4.3.2 Managing Passwords 4.3.2.1 Configuring Password Policies 4.3.2.2 The Administrator Password 4.3.2.3 Lost Password 4.3.3 LDAP Authentication 4.3.4 RADIUS Authentication 4.3.4.1 Enabling/Disabling RADIUS 4.3.4.2 Adding/Removing a RADIUS Server 4.3.5 TACACS+ Authentication 4.3.5.1 Enabling/Disabling TACACS+...
Page 12 4.5.1.7 Monitoring the Oscillator 4.5.1.8 Monitoring the Status of Option Modules 4.5.1.9 NTP Status Monitoring 4.5.1.10 Temperature Management 4.5.2 Logs 4.5.2.1 Types of Logs 4.5.2.2 Local and Remote Logs 4.5.2.3 The Logs Screen 4.5.2.4 Displaying Individual Logs 4.5.2.5 Saving and Downloading Logs 4.5.2.6 Configuring Logs 4.5.2.7 Setting up a Remote Log Server 4.5.2.8 Restoring Log Configurations...
Page 13 5.1.2 Minor and Major Alarms 5.1.3 Troubleshooting: System Configuration 5.1.3.1 System Troubleshooting: Browser Support 5.1.4 Troubleshooting – Unable to Open Web UI 5.1.5 Troubleshooting via Web UI Status Page 5.1.6 Troubleshooting GNSS Reception 5.1.7 Troubleshooting – Keypad Is Locked 5.1.8 Troubleshooting – 1PPS, 10 MHz Outputs 5.1.9 Troubleshooting –...
Page 14 5.2.6 T1/E1 Out Module [Option 13] 5.2.6.1 Module Option 13 E1/T1 (120 Ω): Specifications 5.2.6.2 Model 1204-53 E1/T1 (75 Ω): Specifications 5.2.6.3 E1/T1 Output: Edit Window 5.2.6.4 E1/T1 Output: Status Window 5.2.7 PTP Grandmaster [1204-32] 5.2.7.1 PTP Grandmaster [-32]: Specifications 5.2.7.2 PTP Grandmaster [-32]: Edit Window 5.2.7.3 PTP Grandmaster [-32]: Status Window 5.2.7.4 Configuration —...
Page 15 5.4.15 GSSIP Message Format 5.4.16 EndRun Formats 5.4.16.1 EndRun Time Format 5.4.16.2 EndRunX (Extended) Time Format 5.5 IRIG Standards and Specifications 5.5.1 About the IRIG Output Resolution 5.5.2 IRIG Carrier Frequencies 5.5.3 IRIG B Output 5.5.3.1 FAA IRIG B Code Description 5.5.4 IRIG E Output 5.5.5 IRIG H Output 5.5.6 IRIG Output Accuracy Specifications...
Page 16 BLANK PAGE. • TABLE OF CONTENTS NetClock User Reference Guide...
Page 17: Product Description
CHAPTER 1 Product Description The Chapter presents an overview of the NetClock 9400 Series Time Server, its capabilities, main technical features and specifications. The following topics are included in this Chapter: 1.1 Getting Started 1.2 Introduction 1.3 NetClock 9483 Overview 1.4 NetClock 9489 Overview...
Page 18: Getting Started
Introduction ® The NetClock 9400 Series combines Safran’s precision Time Server/Master Clock technology and secure network-centric approach with a compact modular hardware design to bring you a powerful time & frequency reference and syn- chronization system at the lowest cost of ownership.
Page 19: Netclock 9483 Overview
1.3 NetClock 9483 Overview NetClock 9483 Overview The NetClock 9483 has been designed specifically for these environments, and when using GPS as its timing reference, the UTC (Coordinated Universal Time) time standard is employed, thus allowing the NetClock 9483 to provide legally traceable time and frequency synchronization services for various related envir- onments and equipment, such as the following: 9-1-1 and PSAP communication center telephony...
Page 20: Nena Standards Compliance & Support
NetClock 9489 Overview Safran’s NetClock Model 9489 delivers the same high precision timing benefits of the NetClock 9483, and is ideally suited for delivering highly precise NTP timing for synchronizing systems, devices, and other communications equipment and devices.
Page 21: Inputs & Outputs
1.5 Inputs & Outputs Inputs & Outputs NetClock provides multiple outputs for use in networked systems and devices. GPS- equipped NetClocks can track up to thirty- two GPS satellites sim- ultaneously and synchronize to the satellite’s atomic clocks. This enables NetC- lock- equipped computer networks to synchronize all elements of network hardware and software over LANs or WANs –...
Page 22: Netclock 9400 Series Front Panels
1.6 NetClock 9400 Series Front Panels Type Connector Outputs (2) RS-485 Once-per-Second 3.81 mm Terminal Block Input (1) RS-485 Once-per-Second 3.81 mm Terminal Block For more information, see "NetClock 9489 In-/Outputs" on page 367. NetClock 9400 Series Front Panels 1.6.1 NetClock 9483 Front Panel...
Page 23: Front Panel Keypad, And Display
1.6 NetClock 9400 Series Front Panels 1.6.3 Front Panel Keypad, and Display Note: This Section applies to NetClock 9483 only. To simplify operation and to allow local access to NetClock, a keypad and a 4-line LCD information display are provided on the front panel of the unit.
Page 24 1.6 NetClock 9400 Series Front Panels System: Displaying version info, system halt and reboot, reset spadmin password Netv4: Network interface configuration Lock: Locks the front panel keypad to prevent inadvertent operation. Front Panel Display: Menu Tree The illustration below shows how the menu is organized, and which functions can be accessed via the front panel (i.e.
Page 25: Status Leds
1.6 NetClock 9400 Series Front Panels All entered values are stored in the unit's non- volatile memory and will be restored after a power cycle. 1.6.4 Status LEDs Three Status LEDs, located on the unit's front panel, indicate NetClock's current...
Page 26 1.6 NetClock 9400 Series Front Panels LED Label Activity/Color Description No alarm conditions are currently active. FAULT orange Blinking A GNSS antenna alarm has been asserted and is currently active. A short or open circuit has been detected in the GNSS antenna cable.
Page 27: Netclock 9400 Series Rear Panels
1.7 NetClock 9400 Series Rear Panels NetClock 9400 Series Rear Panels 1.7.1 NetClock 9483 Rear Panel The NetClock 9483 rear panel provides several different outputs for interfacing the unit to various systems. The rear panel has an AC connection for power input (DC Power is optional), Ethernet and USB connections, 1PPS and 10 MHz outputs,...
Page 28: Netclock 9489 Rear Panel
1.7 NetClock 9400 Series Rear Panels USB connector is reserved for future expansion. 1PPS output: Provides a once-per-second square-wave output via BNC out- put connector. The 1PPS output can be configured to have either the rising or falling edge of the signal to be coincident with the system’s on-time point.
Page 29 1.7 NetClock 9400 Series Rear Panels Figure 1-6: Rear panel of NetClock model 9489 The pinout description for the RS-485 connector can be found under "NetClock 9489 In-/Outputs" on page 367. CHAPTER • NetClock User Reference Guide Rev. 23...
Page 30: Netclock 9483-Available Option Modules
1.8 NetClock 9483—Available Option Modules NetClock 9483—Available Option Modules NetClock 9483 models can be customized and enhanced via the addition of up to two (2) additional option modules, detailed in this section. Note: In some cases, the number of option modules of any one type that can be installed may be limited (see “Maximum number of cards”...
Page 31: Multi-Port Gigabit Ethernet Module
1.9 The NetClock Web UI 1.8.2 Multi-Port Gigabit Ethernet Module Inputs/Outputs: (3) Gigabit Ethernet (10/100/1000 Base-T) Signal Type and Connector: RJ-45 Management: Enabled or Disabled (NTP server only) Maximum Number of Cards: 1 Ordering Information: Option 16: Multi-port Ethernet (3X) Module 1.8.3 PTP Grandmaster Module Signal Type and...
Page 32: The Web Ui Home Screen
1.9 The NetClock Web UI Note: Should it ever be necessary, you can restore NetClock's con- figuration to the factory settings at any time. See "Resetting the Unit to Factory Configuration" on page 339. 1.9.1 The Web UI HOME Screen Note: Screens displayed in this manual are for illustrative purposes.
Page 33: The Interfaces Menu
TOOLS: Opens a drop-down menu for access to the system maintenance screens and system logs. HELP: Provides Safran Service Contact Information and high-level system configurations you may be required to furnish when contacting Safran Ser- vice. 1.9.2 The INTERFACES Menu The INTERFACES menu on the Main screen provides access to NetClock's: External REFERENCES e.g., the GNSS reference input...
Page 34: The Configuration Management Menu
1.9 The NetClock Web UI Note: Many of the interfaces can be accessed through different menu items e.g., an optional output will be available under the OPTION CARDS menu the OUTPUTS menu. The headings of each of the INTERFACES drop-down menus (white on orange) open overview status screens for the respective menu items.
Page 35: The Tools Menu
1.10 Specifications Notifications: Configure the notifications triggered by NetClock’s events. A notification can be a combination of a mask alarm and/or SNMP Trap and/or email. Time Management: Manage the Local Clock, UTC Offset, DST Definition and Leap Second information. Front Panel: Configure the appearance of the NetClock front panel display and keypad.
Page 36: Input Power
1.10.1.1 Fuses Type: T 2A L 250 V Model: Safran recommends: LITTELFUSE 0213002.MXP [Safran part number: F010R-0002-000 E FUSE,2A,SB,IEC SURGE,GLASS] Number: 2 (two) per unit NetClock label on rear panel of unit: "AC POWER/F 2A T 250V (2)" LEGEND: F = Fuse 2A = Current Rating: 2 Ampères...
Page 37: Gnss Receiver
1.10 Specifications T = Speed: Time Delay (Slow-Blow) L = Breaking Capacity: Low (Glass) 250V = Voltage Rating (2) = Fuses used: 2 (two) Caution: Before testing fuses, remove AC power by disconnecting the AC power cord. Note: In the event that the unit does not power up with AC power, these fuses should be tested.
Page 38: Serial Port (Rear Panel; Netclock 9483 Only)
9483 only: equipped with 1204-06/Option 16 Gigabit Ethernet Option Mod- ule): 8800- 9000 NTP requests per second. For additional information, please contact Safran. Clients supported: The number of users supported depends on the class of net- work and the subnet mask for the network. A gateway greatly increases the num- ber of users.
Page 39: 1Pps Output
1.10 Specifications FTP/SFTP: For remote upload of system logs and (RFC 959) Syslog: Provides remote log storage (RFCs 3164 and 5424) SNMP: Supports v1, v2c, and v3 Telnet/SSH: For limited remote configuration Security features: Up to 32- character password, Telnet Disable, FTP Disable, Secure SNMP, SNMP Disable, HTTPS/HTTP Disable, SCP, SSH, SFTP.
Page 40: 10 Mhz Output - Oscillator Phase Noise (Dbc/Hz)
1.10 Specifications Connector: BNC female Signature Control: This configurable feature removes the output signal whenever a major alarm condition or loss of time synchronization condition is present. The output will be restored once the fault condition is corrected. Table 1-4: 10 MHz output —...
Page 41: Mechanical And Environmental Specifications
1.10 Specifications 1.10.11 Mechanical and Environmental Specifications Dimensions: Designed for EIA 19” rack mount: Housing w/o connectors and brackets: 16.75” W x 1.72” H [1U] x 14.33” D actual (425 mm W x 44 mm H x 364 mm D) Weight: 6.0 lbs (2.72 kg) 6.5 lbs.
Page 42: Regulatory Compliance
1.11 Regulatory Compliance Vibration: Sine sweep 1.0 octave/min Operating: 10-55 Hz 0.07 gpeak; 55-500 Hz 1.0 gpeak Storage: 10-55 Hz 0.15 gpeak; 55-500 Hz 2.0 gpeak MIL-STD-810F: 514.5, 516.5 1.11 Regulatory Compliance This product has been found to be in conformance with the following regulatory publications.
Page 43: Emc Compliance
1.11 Regulatory Compliance EMC Compliance This product has been tested and meets the following standards: EN 55032:2012/AC:2013/CISPR 32:2012: Class A CAN/CSA-CISPR 22-10/ ICES-003 Issue 6: Class A FCC CFR 47 PART 15 SubPart B:2016: Class A EN55024:2010: Class A European Directives This product has been tested and complies with the following: 2014/30/EU Electromagnetic Compatibility (EMC) 2014/35 EU Low Voltage (LVD)
Page 44 1.11 Regulatory Compliance BLANK PAGE. CHAPTER • NetClock User Reference Guide Rev. 23...
Page 45: Setup
CHAPTER 2 SETUP The following topics are included in this Chapter: 2.1 Overview 2.2 Unpacking and Inventory 2.3 Required Tools and Parts 2.4 SAFETY 2.5 Mounting the Unit 2.6 Connecting Supply Power 2.7 Connecting the GNSS Input 2.8 Connecting Network Cables 2.9 Connecting Inputs and Outputs 2.10 Powering Up the Unit 2.11 Setting up an IP Address...
Page 46: Overview
2.1 Overview Overview This section provides an outline of the steps that need to be performed prior to putting NetClock into service. This includes: Installation: Hardware setup, mechanical installation, physical connections. Setup: Establish basic access to the unit, so as to allow the use of the web user interface ("Web UI").
Page 47: Unpacking And Inventory
Unpack the equipment and inspect it for damage. If any equipment has been dam- aged in transit, or you experience any problems during installation and con- figuration of your Safran product, please contact Safran (see "Technical Support" page 467.)
Page 48: Required Tools And Parts
Depending on your application and system configuration, the following tools and parts may be required: Phillips screwdrivers to install the rack-mount ears, and to mount the unit in a 19"-rack If you plan on using DC power Safran recommends an external ON/OFF switch. Ethernet cables (see "Connecting Network Cables" on page 43).
Page 49 2.4 SAFETY Symbol Signal word Definition Tips and other useful or important information. NOTE This equipment may contain more than one power MULTIPLE source: Disconnect AC DC power supply cords POWER SOURCES before removing the cover to avoid electric shock. Risk of Electrostatic Discharge! Avoid potential equipment damage by following ESD Best Practices.
Page 50 — DO NOT OPEN EQUIPMENT, UNLESS AUTHORIZED: The interior of this equipment does not have any user serviceable parts. Contact Safran Technical Support if this equipment needs to be serviced. Do not open the equipment, unless instructed to do so by Service personnel. Follow Safran Safety Instructions, and observe all local electrical regulatory requirements.
Page 51 DANGER! — BATTERY: Replace the battery only with the same or equivalent type recommended by the manufacturer. Follow Safran Instructions — there is a danger of a new battery exploding if it is incorrectly installed. Discard used batteries according to the man- ufacturer's instructions.
Page 52: Mounting The Unit
Do not modify the equipment. Use only spare parts authorized by Safran. Always follow the instructions set out in this User Reference Guide, or in other Safran documentation for this product.
Page 53: Rack Mounting Requirements
2.5 Mounting the Unit Rack mounting requirements: The maximum ambient operating temperature must be observed. See for the operating temperature range specified for the type of oscillator installed in your NetClock unit. If the NetClock unit is to be installed in a closed rack, or a rack with large amounts of other equipment, a rack cooling fan or fans should be part of...
Page 54: Connecting Supply Power
2.6 Connecting Supply Power 3. Secure the rack mount brackets to the rack using the #10-32 rack mount screws and #2 Phillips head screwdriver, 2 each per side of the rack. Caution: For safety reasons the NetClock unit is intended to be oper- ated in a HORIZONTAL POSITION, RIGHT-SIDE-UP, that is with the keypad to the left side and the 4-line information display and the time display on the right side.
Page 55: Using Ac Input Power
2.6 Connecting Supply Power DANGER! — This unit will contain more than one power source if both the AC and DC power options are present. Turning off the rear panel power switch will NOT remove all power sources. The following sections discuss AC and DC power input. Connect AC and/or DC power, as required.
Page 56: Dc Power Connector Pin-Out
The cable clamp provided with the DC power plug for strain relief of the DC power input cable should be used when DC power is connected to NetClock. Note: Safran recommends to use a dedicated DC power supply switch to energize/de-energize NetClock externally. DC power connector pin-out...
Page 57 Pin C goes to the Earth ground of the DC source. AC/DC Converter The DC input can be used as a second AC input: As an option, Safran offers a kit containing an AC/DC converter with a pre-assempled DC connector: The part number for this adaptor kit is PS06R-2Z1M-DT01.
Page 58: Connecting The Gnss Input
GNSS antenna for information regarding GNSS antenna installation. For additional information on GNSS antenna installation considerations, including cabling, an Safran tech note is available here. 2. Connect the GNSS cable to the rear panel antenna input jack. In the event that NO antenna is connected to the rear panel jack, NetClock will—once it gets powered up (see...
Page 59: Connecting Network Cables
2.8 Connecting Network Cables Connecting Network Cables NetClock provides a base 10/100 Ethernet port for full NTP functionality, as well as a comprehensive web-based user interface ("Web UI") for configuration, mon- itoring and diagnostic support. Additional network ports are available with the Gigabit Ethernet option module.
Page 60: Powering Up The Unit
2.10 Powering Up the Unit E X A M P L E : With the available IRIG Input/Output option card module (Model 1204-05) installed in an option bay, IRIG time code from an IRIG generator can also be applied as an external reference input (either in addition to, or in lieu of GNSS, NTP, user set time and other available reference inputs).
Page 61: Setting Up An Ip Address
2.11 Setting up an IP Address The time display shows the current time: UTC (default), TAI, GPS or local timescale, as configured. Figure 2-1: NetClock front panel 3. Check the front panel status LED indicators: Power lamp should be solid green. Sync lamp will probably be red, since synchronization has not yet been achieved.
Page 62: Dynamic Vs. Static Ip Address
NetClock configuration process. Please note: Unless you are using DNS in conjunction with DHCP (with the client configured using NetClock's hostname instead of IP address), Safran recommends to disable CHAPTER • NetClock User Reference Guide Rev. 23...
Page 63: Assigning A Static Ip Address
Eth1 - 192.168.1.2 Default subnet mask: 255.255.255.0 2.11.2 Assigning a Static IP Address Safran recommends assigning a static IP address to NetClock, even if the unit is connected to a DHCP server. This can be accomplished in several ways: a. Via the...
Page 64: Setting Up An Ip Address Via The Front Panel
2.11 Setting up an IP Address 2.11.2.1 Setting Up an IP Address via the Front Panel Note: This topic applies only to NetClock 9483 units. If you are set- ting up a NetClock 9489 unit (which does not have a front panel information display and keypad), see "Setting Up a Temporary IP Address Remotely"...
Page 65 2.11 Setting up an IP Address (The State is the current DHCP setting and the Action is the action to take. You can only change the Action setting.) 5. Press the key once to select the action, then again to apply it. B.
Page 66: Setting Up A Static Ip Address Via A Dhcp Network
2.11 Setting up an IP Address Note: Despite having entered an IP address, the information display will show 0.0.0.0 if NetClock could not detect an active link on the corresponding network interface. Note: About DNS: The Primary and Secondary DNS servers are set automatically if using DHCP.
Page 67: Setting Up An Ip Address Via The Serial Port
2.11 Setting up an IP Address be displayed. Log into the Web UI as an administrator. The factory-default user name and password are: Username: spadmin Password: admin123 3. Disable DHCP by navigating to MANAGEMENT > Network Setup. In the Ports panel on the right, click the GEAR icon next to the Ethernet Port you are using.
Page 68: Setting Up A Static Ip Address Via Ethernet Cable
2.11 Setting up an IP Address connection, see "Setting up a Terminal Emulator" on page 415 2. Login to NetClock with a user account that has “admin” group rights, such as the default spadmin account (the default password is admin123). 3. Disable DHCP, type: dhcp4set 0 off <Enter>. Note: If your NetClock is configured with an Ethernet option card, use 0, 1, 2, 3 for eth0 –...
Page 69: Setting Up A Temporary Ip Address Remotely
2.11 Setting up an IP Address 1. First, disable DHCP using the front panel keypad and information display: a. Press the ENTER key. ü b. Using the arrow key, select Netv4 from the menu. (To select a menu item, highlight it using the arrow keys, then press the ü...
Page 70 2.11 Setting up an IP Address DHCP, or that has not already been statically assigned to another device. Ensure that the operator or administrator‘s PC and the NetClock 9489 are on the same subnet, and that the arp and ping commands can be issued from the workstation.
Page 71: Subnet Mask Values
2.12 Accessing the Web UI Note: You must complete this process within 5 minutes of the sys- tem booting, or else you will need to restart the NetClock system, and then restart from step 4. This is also a temporary IP address that will not persist through power cycles.
Page 72 2.12 Accessing the Web UI You can access the Web UI either by using the automatically assigned DHCP IP address, or by using a manually set static IP address (see "Assigning a Static IP Address" on page 47): 1. On a computer connected to the NetClock network, start a web browser, and enter the IP address shown on the NetClock front panel.
Page 73: Connecting Reference Inputs And Network Interface
For security reasons, it is advisable to change the default credentials, see: "Managing Passwords" on page 262. 4. Upon initial login, you will be asked to register your product. Safran recom- mends to register NetClock, so as to receive software updates and services notices. See also "Product Registration" on page 289.
Page 74 2.13 Connecting Reference Inputs and Network Inter- face Connect the GPS cable to the rear panel antenna input jack (refer to LINK). Until the GPS antenna is connected to the rear panel jack, the Antenna Prob- lem alarm is asserted, causing the front panel “Fault” light to be blinking orange (the Antenna Problem alarm indicates an open or short exists in the antenna cable).
Page 75: Configure Network Settings
2.14 Configure Network Settings Network Bits Equivalent Netmask Network Bits Equivalent Netmask 255.255.254.0 255.224.0.0 255.255.252.0 255.192.0.0 255.255.248.0 255.128.0.0 255.255.240.0 255.0.0.0 255.255.224.0 Table 2-4: Subnet mask values 2.14 Configure Network Settings Before configuring the network settings, you need to setup access to NetClock web user interface ("Web UI").
Page 76 2.14 Configure Network Settings Actions panel provides: General Settings: Allows quick access to the primary network set- tings necessary to connect NetClock to a network. See "General Net- work Settings" on the facing page. Web Interface Settings: Web interface timeout: Determines how long a user can stay logged on.
Page 77: Hsts Setup
2.14 Configure Network Settings Static Routes. 2.14.1 HSTS Setup HTTP Strict Transport Security (HSTS) support is available for NetClock. To configure HSTS, navigate to MANAGEMENT > Network Setup. In the Actions Panel, select Web Interface Settings. Select the Security Level tab to configure HSTS. The default is set to 31536000s. Max Age: 2147483647s.
Page 78: Network Ports
2.14 Configure Network Settings 2. Populate the fields: Hostname: This is the server’s identity on the network or IP address. The default is Spectracom. Default Gateway IPv6: The gateway (default router) address is needed if communication to the NetClock is made outside of the local network.
Page 79 2.14 Configure Network Settings Red: DISABLED. Locate the port you want to configure and click the GEAR button to enable & configure the port, or the INFO button to view the port status. Note: eth0 port is the built-in NetClock Ethernet port (i.e., standard, not optional).
Page 80 2.14 Configure Network Settings Speed: Choose the correct speed between 10, 100, and 1000 Mb/s Duplex: Choose between Full and Half duplex. Domain: This is the domain name to be associated with this port. Enable DHCPv4: Check this box to enable the delivery of IP addresses from a DHCP Server using the DHCPv4 protocol.
Page 81 2.14 Configure Network Settings page 55 for a list of subnet mask values. IPv4 Gateway: The gateway (default router) address is needed if communication to the NetClock is made outside of the local network. By default, the gateway is disabled. Primary: This is the primary DNS address to be used for this port.
Page 82: Network Services
2.14 Configure Network Settings Note: If the button is not displayed, you need Enable this port first, and click Submit. Enable SLAAC: Check this box to enable stateless address auto configuration. MTU: Maximum Transmission Unit. Range (for Ethernet v2): Default: 1500 bytes. Smaller packages are recommended, if encapsulation is required e.g., to meet encryption needs, which would cause the maximum package size to be exceeded.
Page 83: Static Routes
2.14 Configure Network Settings Time Protocol, RFC-868: This protocol is used to provide a machine-read- able, site-independent date and time. Telnet: Remote configuration server: Access to logs SSH: Secure Shell cryptographic network protocol for secure data com- munication HTTP: Hypertext Transfer Protocol HTTPS: Hypertext Transfer Protocol Secure tcpdump: A LINUX program that can be used to monitor network traffic by inspecting tcp packets.
Page 84 2.14 Configure Network Settings 1. Navigate to the MANAGEMENT > Network Setup screen. 2. The Ports panel displays the available Ethernet ports, and their connection status. 3. To view all configured Static Routes for all Ethernet Ports, or delete one or more Static Routes, click the TABLE icon in the top-right corner.
Page 85: Access Rules
2.14 Configure Network Settings Note: eth0 port is the default port for static routing. If a port is not given its own static route, all packets from that port will be sent through the default. 2.14.6 Access Rules Network access rules restrict access to only those assigned networks or nodes defined.
Page 86: Https
2.14 Configure Network Settings IPv6— , representing 2001:db8::/48 2001:db8:0:0:0:0:0:0 2001:d- b8:0:ffff:ffff:ffff:ffff:ffff. 5. Click the button in the Action column to add the new rule. 6. The established rule appears in the Network Access Rules window. Click the Delete button next to an existing rule, if you want to delete 2.14.7 HTTPS...
Page 87 2.14 Configure Network Settings left): The HTTPS Setup window has five tabs: Create Certificate Request: This menu utilizes the OpenSSL library to generate certificate Requests and self-signed certificates. Subject Alternative Name Extension: This menu is used to add altern- ative names to an X.509 extension of a Certificate Request. Certificate Request: A holder for the certificate request generated under the...
Page 88: 2.14.7.2 About Https
If a Certificate Authority is not available, or while you are waiting for the cer- tificate to be issued, you can use the default Safran self-signed SSL certificate that comes with the unit until it expires, or use your own self-signed certificate.
Page 89: 2.14.7.4 Creating An Https Certificate Request
2.14 Configure Network Settings You can create a unique X.509 self-signed Certificate, an RSA private key and X.509 certificate request using the Web UI. RSA private keys are supported because they are the most widely accepted. At this time, DSA keys are not sup- ported.
Page 90 Certificate. Caution: Once you click Submit, a previously generated Cer- tificate (or the Safran default Certificate) will be overwritten. Note that an invalid Certificate may result in denial of access to NetClock via the Web UI! (If this occurs, see "If a Secure Unit Becomes Inaccessible"...
Page 91 The remaining fields are optional. It is recommended that you consult your Certificate Authority for the required fields in an X 509-Certificate request. Safran recommends all fields be filled out and match the information given to your Certificate Authority.
Page 92: 2.14.7.5 Adding Https Subject Alternative Names
2.14 Configure Network Settings Note: It may take several minutes for NetClock to create the Certificate request and the private key (larger keys will require more time than small keys). If the unit is rebooted during this time, the Certificate will not be created. To view the newly generated request, in the HTTPS Setup window, click the Certificate Request tab.
Page 93: 2.14.7.6 Requesting An Https Certificate
2.14 Configure Network Settings It is recommended that you consult your Certificate Authority regarding ques- tions of Subject Alternative Name usage. To add Subject Alternative Names to an HTTPS Certificate Request: Navigate to MANAGEMENT > NETWORK: HTTPS Setup (or, navigate to MANAGEMENT >...
Page 94 2.14 Configure Network Settings 4. You have now created a Certificate Request. Navigate to the Certificate Request tab to view it: 5. Copy the generated Certificate Request from the Certificate Request win- dow, and paste and submit it per the guidelines of your Certificate Author- ity.
Page 95: 2.14.7.7 Uploading An X.509 Pem Certificate Text
2.14 Configure Network Settings NOTE: When accessing the NetClock Web UI while using the self- signed cer- ® tificate, your Windows web browser will ask you to confirm that you want to access this site via https with only a self-signed certificate in place. Other oper- ating systems may vary in how they install and accept certificates.
Page 96: 2.14.7.8 Uploading An Https Certificate File
2.14 Configure Network Settings Authority, and paste it into the text field. 4. Click Submit to upload the Certificate to NetClock. NOTE: The text inside the text field under the Edit X.509 PEM Certificate tab is editable. However, changes should not be made to a Certificate once it is impor- ted;...
Page 97: Ssh
2.14 Configure Network Settings PKCS #7 PEM PKCS #7 DER 5. Click the Browse… button and locate the Public Keys File provided by the Certificate Authority in its location where you stored it in step 1. 6. Click Submit. Note: NetClock will automatically format the Certificate into the X.509 PEM format.
Page 98 2.14 Configure Network Settings 1. Navigate to MANAGEMENT > NETWORK: SSH Setup. The SSH Setup win- dow will display. The window contains two tabs: Host Keys: SSH uses Host Keys to uniquely identify each SSH server. Host keys are used for server authentication and identification. Public Key: This is a text field interface that allows the user to edit the public key files authorized_keys file.
Page 99 2.14 Configure Network Settings NetClock units have their initial host keys created at the factory. RSA host key sizes can vary between 768 and 4096 bits. The recommended key size is 1024. Though many key sizes are supported, it is recommended that users select key sizes that are powers of 2 or divisible by 2.
Page 100 2.14 Configure Network Settings To change the key length of a host key: 1. Navigate to MANAGEMENT > NETWORK: SSH Setup. The SSH Setup win- dow will open to the Host Keys tab by default. 2. Select the Key Length value for the key type you want to change.
Page 101 2.14 Configure Network Settings 2. Select Delete in the field for the key you wish to delete, and click Submit. Creating Host Public/Private Key Pairs You may create individual Host Public/Private Key pairs. Host keys must first be deleted before new Host Keys can be created. To create a new set of host keys: 1.
Page 102 2.14 Configure Network Settings 5. Delete any of the keys you do not want. See "Deleting Host Keys" on page 84. Note: If the unit is rebooted with host key creation in progress, or the unit is booted and no host keys exist, the key generation process is restarted.
Page 103 2.14 Configure Network Settings To view and edit the authorized_keys file: 1. Navigate to MANAGEMENT > NETWORK: SSH Setup. The SSH Setup win- dow will open to the Host Keys tab by default. 2. Select the Public Key tab. The authorized_keys file appears in the Public Keys File window:...
Page 104 Creating an SSH session using Public Key with Passphrase Authentic- ation for the admin account You must first provide the secure Safran product a RSA public key found typ- ically in the OpenSSH id_rsa.pub file. Then you may attempt to create an SSH ses- sion.
Page 105: Snmp
You will be presented with the SFTP prompt allowing interactive file transfer and directory navigation. Recommended SSH Client Tools Safran does not make any recommendations for specific SSH clients, SCP clients, or SFTP client tools. However, there are many SSH based tools available to the user at low cost or free.
Page 106 2.14 Configure Network Settings SNMP agents must be enabled and configured so that they can communicate with the network management system (NMS). The agent is also responsible for controlling the database of control variables defined in the Management Inform- ation Base (MIB). NetClock’s SNMP functionality supports SNMP versions V1, V2c and V3 (with SNMP Version 3 being a secure SNMP protocol).
Page 107 2.14 Configure Network Settings as well as the ability to permit or deny access to portions of the network. Clicking on the “+” symbol in the top- right corner opens the SNMP V1/V2c Settings for Access Screen. See "SNMP V1/V2c" on page 94.
Page 108 2.14 Configure Network Settings 3. Confirm that you want to restore the default settings in the pop-up mes- sage. Configuring the SNMP Status The SNMP Status Settings are sysObjectID, sysContact, and sysLocation. To con- figure SNMP Status Settings: 1. Navigate to MANAGEMENT >...
Page 109 To obtain the MIB files from NetClock via FTP/SFTP: 1. Using an FTP program, log in as an administrator. 2. Through the FTP program, locate Safran Trusted 4D's Spectracom MIB files in the /home/spectracom/mibs directory. 3. FTP the files to the desired location on your PC for later transfer to the SNMP Manager.
Page 110: Snmp V1/V2C
2.14 Configure Network Settings 2.14.9.1 SNMP V1/V2c SNMP V1 is the first version of the SNMP protocol, as defined in the IETF (Internet Engineering Task Force) RFCs (Request for Comments) number 1155 and 1157. SNMP V2c is the revised protocol, but it also uses the V1 community based admin- istration model.
Page 111: 2.14.9.2 Snmp V3
2.14 Configure Network Settings 5. Click Submit. The created communities will appear in the SNMP V1/V2 panel: Editing and Deleting Communities To edit or delete a community you have created: 1. Navigate to MANAGEMENT > NETWORK: SNMP Setup. 2. Click the row of the SNMP V1/V2 panel that displays the community you wish to edit or delete.
Page 112 2.14 Configure Network Settings Creating Users 1. Navigate to MANAGEMENT > NETWORK: SNMP Setup. 2. In the SNMP V3 panel, click the PLUS icon in the top-right corner. 3. The SNMP V3 Settings window will display. 4. Enter the required information in the fields provided. SNMP User Names and passwords are independent of users that are...
Page 113: 2.14.9.3 Snmp Traps
2.14 Configure Network Settings Editing and Deleting Users To edit or delete a user you have created: 1. Navigate to MANAGEMENT > NETWORK: SNMP Setup. 2. Click the row of the SNMP V3 panel that displays the community you wish to edit or delete.
Page 114 2.14 Configure Network Settings To define SNMP Traps (Notifications): 1. Navigate to MANAGEMENT > NETWORK: SNMP Setup. 2. In the SNMP Traps panel, click the PLUS icon in the top-right corner. 3. The SNMP Traps Settings window will display: 4. Enter the required information in the fields provided. (Note that the options will vary contextually according to your Version.) Version field provides a choice between v1, v2c, and...
Page 115 This allows for SNMP Managers in different geographical areas to receive the same SNMP traps. Note: Safran Trusted 4D has been assigned the enterprise iden- tifier 18837 by the IANA (Internet Assigned Numbers Author- ity). The product MIBs reside under the enterprise identifier @18837.3.
Page 116: 2.14.10 System Time Message
2.14 Configure Network Settings 2.14.10 System Time Message The System Time Message is a feature used for special applications that require a once-per-second time message to be sent out by NetClock via multicast. This time message will be transmitted before every 1PPS signal, and can be used to evaluate accuracy and jitter.
Page 117: Configure Ntp
2.15 Configure NTP Table 2-7: System Time Message field descriptions Data Data Description Range Resolution Units Name Message UID of the message; pro- Unsigned 32 grammable bit integer Message Total message size in bytes Unsigned 32 Bytes Size bit integer Seconds Seconds since epoch Unsigned 32...
Page 118: Checklist Ntp Configuration
2.15 Configure NTP Unicast mode, i.e. the NTP Service responds to NTP requests only. Note: In order to configure NTP, you need to access the NTP Setup screen which requires ADMINISTRATOR rights. 2.15.1 Checklist NTP Configuration The following is a list of configuration settings you may want to consider as you setup your NTP Service.
Page 119 2.15 Configure NTP The NTP Servers and Peers panels … are located on the right-hand side of the NTP screen: Servers: In this display you can view the NTP Servers that NetClock detects in your network. It is through this display that you configure external NTP references.
Page 120 2.15 Configure NTP The graphs maybe saved and downloaded (> ARROW icon), or deleted (> TRASH CAN icon). The Actions panel … is in the top left-hand corner of the NTP screen comprises the following but- tons: Symmetric Keys: Click here to set up your symmetric keys for MD5 authen- tication.
Page 121: Dis-/Enabling Ntp
"NTP Expert Mode" on page 143. Note: Safran Tech Support does not support the editing of the NTP configuration files in Expert Mode. For additional inform- ation on editing the NTP.conf file, please refer to http://www.ntp.org. Other NTP Services that can be configured via the NTP Services panel by clicking...
Page 122: Viewing Ntp Clients
2.15 Configure NTP 3. A notification window will confirm the status change. 4. In the NTP Services panel, set the ON/OFF toggle switch to ON again. Changes made will now take effect and NTP operation will be restored shortly after this operation is performed. 2.15.4 Viewing NTP Clients To view the NTP clients being served by NetClock:...
Page 123: Restoring The Default Ntp Configuration
2.15 Configure NTP You can search any of the fields for specific information in the Search field at the top of the window. A limit of 10 entries will appear on the screen at any one time. If you have more than 10 clients, you can move through the table using the First, Previous, Next Last...
Page 124 2.15 Configure NTP System Time timescale. The options are UTC, TAI and GPS. Typically, UTC is used for network synchronization. Note that the System Time affects not only NTP output, but also all other aspects of time management e.g., time distributed via channels other than NTP, logging, and time displayed on the unit front panel and in the Web UI.
Page 125: Ntp Reference Configuration
2.15 Configure NTP Note: When the Timescale is set to “GPS”, the GPS to UTC Offset must be set correctly. As of 29-November- 2024, the offset between UTC and GPS is 18 seconds. 2.15.7 NTP Reference Configuration NetClock's NTP Service needs to be setup such that it utilizes the time source ("input reference") you want it to use.
Page 126: 2.15.7.2 Configuring "Ntp Stratum 1" Operation
2.15 Configure NTP Note: Internet Time Servers should be configured as NTP Servers and not as NTP Peers. If NetClock has no valid Timing System Reference, NTP Server or NTP Peers, the NTP Stratum value is automatically downgraded to Stratum 15. This ensures that its NTP clients will no longer use this NetClock unit as a time reference.
Page 127: 2.15.7.3 Configuring "Ntp Stratum Synchronization
2.15 Configure NTP relation, NTP performance will be degraded. In such a scenario, it is best NOT to use the System Time’s 1PPS as a reference. 5. Click the Submit button. 2.15.7.3 Configuring "NTP Stratum Synchronization" NTP Stratum Synchronization refers to the concept of using a different NTP Server or Peer as your primary reference (instead of e.g., GNSS).
Page 128: Ntp Servers And Peers
2.15 Configure NTP 2.15.8 NTP Servers and Peers NetClock can be configured to receive time from one or more available NTP Serv- ers (NetClocks or different models). This allows for NTP Servers on a timing net- work to be configured as potential (fallback) input time references for NetClock System Time synchronization.
Page 129: The Ntp Servers And Ntp Peers Panels
2.15 Configure NTP E X A M P L E : If NetClock is configured to receive time from one or more Stratum 1 NTP Servers, with no other higher priority input references available, NetClock will report to the network that it is a Stratum 2 Server. In order for NetClock to use other NTP servers as a valid time reference to syn- chronize the System Time, the input Reference Priority Setup table must be con- figured to allow NTP as an available reference.
Page 130 2.15 Configure NTP The NTP Servers and NTP Peers panels display which servers in the network are set up at higher or equal Stratums (Servers or Peers, respectively), and their con- figurations. These panels are also used to add, configure, or remove NTP Servers and Peers.
Page 131: 2.15.8.2 Ntp Servers: Adding, Configuring, Removing
2.15 Configure NTP STEP: NTP on server/peer is performing initial synchronization step and restarting AUTH STATUS: Indicates if the selected reference is using MD5 authen- tication. “None” indicates authentication not being used. LAST: The number of seconds that have expired since this reference was last polled for its time.
Page 132 2.15 Configure NTP NTP Setup screen/NTP Servers panel, they could not be resolved. Verify the IP address. Note that System servers cannot be edited or deleted. a new server, click the PLUS icon in the upper right-hand corner, and proceed to the next step. Note: In order for other NTP Servers to be a valid ref- erence, “NTP”...
Page 133: 2.15.8.3 Ntp Peers: Adding, Configuring, Removing
2.15 Configure NTP Enable Autokey: Click here if you want to use Autokey with this server. See "NTP Autokey" on page 119. Note: When you configure NTP Autokey, you must first disable the NTP service in the NTP Services panel, and then re-enable it after the Autokey configuration is com- pleted.
Page 134 2.15 Configure NTP EDIT the settings of an NTP Peer, click the GEAR button next to it, and proceed to Step 3 below. a new NTP Peer, click the PLUS icon in the top right corner of NTP Peers panel. REMOVE an NTP Peer (and its associated configurations), click the X-button next to it.
Page 135: Ntp Authentication
2.15 Configure NTP Note: Before you can edit the field, you must set up Symmetric Keys through the Actions Panel. See "NTP: Symmetric Keys (MD5) " on page 125. Conversely, you may check the box below the field. Autokey Enable Autokey: Click the check box to enable/disable Autokey. See "NTP Autokey"...
Page 136 2.15 Configure NTP NTP Autokey: Support & Limitations Currently, NetClock supports only the IFF (Identify Friend or Foe) Autokey Iden- tity Scheme. The NetClock product web interface automates the configuration of the IFF using the MD5 digests and RSA keys and certificates. At this time the con- figuration of other key types or other digests is not supported.
Page 137 2.15 Configure NTP Figure 2-2: IFF Autokey configuration example Configuring NTP Autokey Note: When you configure NTP Autokey, you must disable the NTP Service first, and then re-enable it after Autokey configuration is completed. See "Dis-/Enabling NTP" on page 105. To configure NTP Autokey: CHAPTER •...
Page 138 2.15 Configure NTP 1. Navigate to MANAGEMENT > NETWORK: NTP Setup. 2. In the NTP Services panel, click the GEAR icon in the top-right corner. 3. The Edit NTP Services window will display. 4. Click the Autokey tab. 5. Check the Autokey box.
Page 139 2.15 Configure NTP 8. To designate a NetClock as Trusted, click the Submit button. This will gen- erate a new Groupkey. 9. To designate a NetClock as a Client or a Server, paste the generated Group- into the Groupkey box, and click the Submit button.
Page 140 2.15 Configure NTP 7. Enable NTP in the NTP Services panel. 8. Verify that NTP reaches occur, and that NTP eventually reaches Stratum 1. Creating a Stratum-1 Group Member Server To configure an NTP Stratum-1 Server, which is a Group Member, using a Client key: 1.
Page 141: Ntp: Symmetric Keys (Md5)
2.15 Configure NTP 4. Under the Autokey tab of the Edit NTP Services window, enable: Enable Autokey—Check the box. Autokey Passphrase—Enter your Group members NTP Autokey pass- word. Select Certificate Type to Generate—Select Client to enable Client only. 5. Using the NTP Server containing the IFF Group/Client Key, copy the Group/Client key.
Page 142 2.15 Configure NTP 3. The NTP Symmetric Keys window will display: CREATE Symmetric Key, click the PLUS icon in the top-right corner, and proceed to Step 4. EDIT an existing key pair, click the corresponding Change button, and proceed to Step 4. DELETE a key pair, click the corresponding Delete button, and click...
Page 143 2.15 Configure NTP Note: To use the MD5 authentication with trusted key ID, both the NTP client and the NetClock must contain the same key ID/key string pair, the client must be set to use one of these MD5 pairs, and the key must be trusted. ID—The key ID must be a number between 1 and 65532.
Page 144: 2.15.10 Ntp Access Restrictions
2.15 Configure NTP NOTES: Duplicate key IDs are not permitted. NTP requests received by that do not con- tain an authenticator containing a valid Key ID and MD5 message digest pair will be responded to, but no authentication will be performed. An NTP request with valid authenticators results in a valid NTP response with its own valid authen- ticator using the same Key ID provided in the NTP request.
Page 145 2.15 Configure NTP prevent fraudulent or inadvertent manipulation of a time server. To configure NTP Access Restrictions: 1. Navigate to MANAGEMENT > NETWORK: NTP Setup. 2. In the Actions panel, click Access Restrictions: 3. The NTP Access Restrictions Status window will display: EDIT an access restriction, click the PLUS icon or the Change button, respectively, and proceed to Step 4.
Page 146: Enabling/Disabling Ntp Broadcasting
2.15 Configure NTP Fill in the fields: Restriction Type—Choose either Allow or Deny. If you select “Deny”, the configured portion of the network will not have NTP access to NetClock, but the rest of the network will have access to NetClock. If you select “allow”, the con- figured portion of the network will have NTP access to NetC- lock, but the rest of the network will not have access to NetClock.
Page 147: 2.15.12 Ntp Over Anycast
2.15 Configure NTP 1. Navigate to MANAGEMENT > NETWORK: NTP Setup. 2. On the NTP Services panel, click the GEAR icon. The Edit NTP Services window will display. Check the Broadcast box. 4. Select a Broadcast Interval. When NTP Broadcasting is selected, in addition to still responding to NTP time requests sent from network appliances, NetClock will also send unsolicited NTP time packets to the local broadcast address at the Broadcast Interval specified by you.
Page 148: Configuring Ntp Over Anycast (General Settings)
2.15 Configure NTP To learn more about NTP over Anycast, see also the respective Safran Tech Note. Please note that NetClock utilizes the OSPF (Open Shortest Path First) and BGP (Border Gateway Protocol). O S P F P r o t o c o l E X A M P L E :...
Page 149: Configuring Ntp Over Anycast (Ospf Ipv4)
2.15 Configure NTP 1. Confirm that your existing network infrastructure is Anycast capable. Determine network specifics, such as the Anycast address and port. 2. In the NetClock Web UI, navigate to MANAGEMENT > Network > Setup. 3. In the Actions Panel, click NTP over Anycast.
Page 150: Configuring Ntp Over Anycast (Ospf Ipv6)
2.15 Configure NTP 8. In the NTP Anycast window, navigate to the OSPF tab. 9. On the OSPF tab, check Enable. 10. Setup the OSPF area. 11. Click Submit. 12. Select the port address to associate the Anycast service with (because there may be multiple addresses on a single port), and click Submit.
Page 151: Configuring Ntp Over Anycast (Bgp)
2.15 Configure NTP 7. Select the port address to associate the Anycast service with (because there may be multiple IPv6 addresses on a single port), and click Submit. If no addresses appear, an IPv6 address must be added to the port. 8.
Page 152: 2.15.12.5 Configuring Anycast Via Ntp Expert Mode
2.15 Configure NTP 5. On the General tab, select your desired IP Version. This selection auto- matically communicates with the tab and displays the neighbor address field based on your needs. 6. Select the port to associate the Anycast service with (depending on the option card configuration of your unit, there may be only ETH0 available).
Page 153 2.15 Configure NTP The zebra.conf file is required for both IPv4, and IPv6 Anycast. The ospfd.conf file is required for IPv4 OSPF only, the ospf6d.conf file is required for IPv6 OSPF only, and the bgpd.conf file has multiprotocol functionality, hence it can be used for both IPv4, and IPv6 Anycast.
Page 154 2.15 Configure NTP interface eth0 ip address 10.2.100.157/16 ipv6 address 2000:10:2::157/64 interface lo ip address 10.10.14.1/32 ipv6 address 2000:10:10::1/64 ***************************************************** Example file with IPv4, and IPv6 configured on dif- zebra.conf ferent ports: (Interface eth0 line, followed by only IPv4 line, because no IPv6 address is con- figured on that port.
Page 155 2.15 Configure NTP interface lo ***************************************************** Example file: ospfd.conf *****************************************************! router ospf ospf router-id 10.2.100.157 network 10.2.0.0/16 area 0.0.0.0 redistribute connected distribute-list default out connected access-list default permit 10.10.14.1/32 access-list default deny any ***************************************************** Example file: ospf6d.conf ***************************************************** interface eth0 router ospf6 router-id 10.2.100.157 interface eth0 area 0.0.0.0...
Page 156: 2.15.12.6 Testing Ntp Over Anycast
2.15 Configure NTP redistribute connected ***************************************************** 2.15.12.6 Testing NTP over Anycast Note: A detailed Anycast test procedure is available from Safran upon request. Please contact TimingSupport@nav- timing.safrangroup.com. 2.15.13 NTP Orphan Mode The NTP Orphan Mode allows NetClock to remain a valid time server to its NTP cli- ents even if all its input references have become invalid and the Holdover period has expired.
Page 157: 2.15.14 Host Disciplining
2.15 Configure NTP 3. Click the Orphan Mode tab, and select an NTP Stratum other than 15. This will be the Stratum level NetClock will transition to in the event its input ref- erences become invalid. 4. Click Submit. NetClock will automatically stop and re-start the NTP Service. Note: Per NTP protocol definition, for an NTP Orphan Mode Timing...
Page 158: 2.15.14.1 Enabling Host Disciplining
2.15 Configure NTP OFF [default setting]: When OFF, NTP synchronization is not disciplining the oscillator, only a time transfer is made in regular intervals to manually correct the system time. While disabled Host Disciplining does not offer the benefit of a disciplined oscillator when transitioning into or out of holdover, NetClock on the other hand will not be susceptible to disciplining errors caused by network traffic or NTP-related issues.
Page 159: 2.15.15 Ntp Expert Mode
Mode is enabled, the user has direct access to the NTP.conf file. Caution: Safran Tech Support does not support the editing of the NTP configuration files while in the Expert Mode. For additional information on editing the NTP.conf file, please refer to http://www.ntp.org/.
Page 160: Factory Default
2.15 Configure NTP Caution: If changes are made to the NTP.conf file while in the Expert mode, Expert mode should remain enabled from that point forward. Disabling Expert mode after changes being made to this file may res- ult in loss of this configuration information. Factory default file: NTP.conf...
Page 161: 2.15.16 Safran Technical Support For Ntp
NTP Expert Mode is disabled. 2.15.16 Safran Technical Support for NTP Safran does not provide technical assistance for configuring and installing NTP on Unix-based applications. Please refer to www.ntp.org for NTP information and FAQs.
Page 162: Configuring Input References
Safran Technical Support. Safran also offers an alternate Windows NTP client software package called PresenTense. PresenTense software provides many features and capabilities not included with the limited functionality of the Windows W32Time program, includ- ing alert notification and audit trails for the PC’s time.
Page 163: Configuring Outputs
2.17 Configuring Outputs 2.17 Configuring Outputs Depending on the type of output interface, some of its settings may be user-edit- able. To access these settings for a given output, choose one of the two methods described below. Note: The illustrations shown below are examples. The windows dis- played in your Web UI may look differently.
Page 164: The 1Pps And 10 Mhz Outputs
2.17 Configuring Outputs While System Status and logged Events are displayed on the left, the Out- puts panel on the right lists all the outputs detected. If you hover with your mouse pointer over any of the connectors shown in the rear panel illustration, a tooltip will be displayed, indic- ating the type of output..
Page 165: Configuring A 1Pps Output
2.17 Configuring Outputs and select the 1PPS Output or 10 MHz Output you would like to see, or configure. NetClock’s 1PPS output is generated from the oscillator’s 10 MHz output and is aligned to the on-time point. The on-time point of the 1PPS output can be con- figured to be either the rising or falling edge of the 1PPS signal (by default, the rising edge is the on-time point).
Page 166: Configuring The 10 Mhz Output (Netclock 9483 Only)
2.17 Configuring Outputs 1. Navigate to INTERFACES: OUTPUTS, or to INTERFACES: OPTION CARDS (white on orange). 2. In the panel on the right, click the GEAR button next to the 1PPS Output want to edit. 3. The 1PPS Output Edit window will display, allowing the following items to be configured: Signature Control: Determines when the output is enabled.
Page 167: Configuring Optional Outputs
2.17 Configuring Outputs 3. The 10 MHz edit window will display. Choose a value from the Signature Con- trol field drop-down list to determine what NetClock shall do with the output signal in the event its input reference is lost. For more information, see "Sig- nature Control"...
Page 168 2.17 Configuring Outputs Output Always Enabled—The output is present, even if NetClock is not syn- chronized to its references (NetClock is free running). Output Enabled in Holdover—The output is present unless NetClock is not synchronized to its references (NetClock is in Holdover mode). III.
Page 169 2.17 Configuring Outputs 2. In the Outputs panel, click the GEAR button for the desired output. Ehe Edit window will open with the current Signature Control setting, and a drop-down list to change it. CHAPTER • NetClock User Reference Guide Rev. 23...
Page 170 2.17 Configuring Outputs BLANK PAGE. CHAPTER • NetClock User Reference Guide Rev. 23...
Page 171: Managing Time
CHAPTER 3 Managing Time In this document, the notion of Managing Time refers not only to the concept of NetClock's System Time, but also to reference configuration, as well as dis- tribution of time and frequency. The following topics are included in this Chapter: 3.1 The Time Management Screen 3.2 System Time 3.3 Managing References...
Page 172: The Time Management Screen
3.1 The Time Management Screen The Time Management Screen The Time Management screen is the point of entry for all System Time-related settings that are user-configurable. To access the Time Management screen: 1. Navigate to MANAGEMENT > OTHER: Time Management. 2. The Time Management screen opens.
Page 173: System Time
3.2 System Time corrections can be applied to NetClock’s time keeping. It is also possible to enter the exact day and time when the leap second is to be applied, and to delete a leap second. See also: "Leap Seconds" on page 166 Local Clocks panel You can create multiple different Local Clocks, as needed.
Page 174: System Time
3.2 System Time Figure 3-1: How the System Time is derived Note: User hand-set times can only be set in UTC (not Local time). 3.2.1 System Time Several System Time parameters can be customized: System Timescale can be changed. user-defined time can be setup for e.g., for simulation purposes, or if no external reference is available.
Page 175 3.2 System Time 1. Navigate to MANAGEMENT > OTHER: Time Management. 2. In the System Time panel located in the top-left corner of the Time Man- agement screen, click the GEAR icon. 3. The Edit System Time pop-up window will display. In the System Timescale field select a timescale from the drop-down...
Page 176: Timescales
3.2 System Time For more information on Timescales, see "Timescales" below. 4. If you want to override the system time with a manually set User Time, check the Manual Time Set checkbox. For information, see "Manually Set- ting the Time" on the facing page.
Page 177: Manually Setting The Time
3.2 System Time output reference to be correct. Some references (like GNSS) provide the times- cale offset to the system. In the event that the input reference being used does not provide this information, it must be set in through the Offsets panel of the Time Management page.
Page 178 3.2 System Time In such cases, the System Time can be hand-set, and then used as a User [x]-set System Time. For more information on when to use this functionality, see "The "User/User" Reference" on page 179. Note: If synchronization to UTC is NOT required, it is advisable to set a time in the past or future, so as to avoid users inadvertently con- sidering the distributed time to be genuine.
Page 179: Using Battery Backed Time On Startup
Only: Some legacy time formats (e.g., IRIG) do not support years. Checking this box will open a data entry field to manually set the year. Safran recommends not to utilize this feature, unless the IRIG format you are using does not provide a YEAR field.
Page 180 3.2 System Time System Time upon system startup. The Battery Backed Time is also referred to as the time maintained by the integrated Real Time Clock (RTC) This will result in NetClock providing a System Time before one of the external ref- erences becomes available and valid.
Page 181: Timescale Offset(S)
3.2 System Time Distributing battery-backed time over NTP When distributing a hand-set, battery backed time via NTP, please set the time relatively close to UTC, so as to prevent NTP synchronization problems when transitioning from the hand-set time to a UTC-based external input reference. See also "Input Reference Priorities"...
Page 182: Leap Seconds
3.2 System Time 1. Navigate to MANAGEMENT > OTHER: Time Management. 2. In the Offsets panel on the left, click the GEAR icon in the top-right corner. 3. The Edit GPS Offset window will display. Enter the desired GPS Offset seconds, and click Submit.
Page 183: Leap Second Alert Notification
3.2 System Time Historically, Leap Seconds have been inserted about every 18 months. However, the Earth's rotation rate is unpredictable in the long term, so it is not possible to predict the need for them more than six months in advance. Note: Leap Seconds only apply to the Local...
Page 184: Leap Second Correction Sequence
3.2 System Time NTP Packets contain two Leap Indicator Bits. In the 24 hours preceding a Leap Second Adjustment, the Leap Indicator Bits (2 bits) which normally are 00b for sync are 01b (1) for Add a Leap Second and 10b (2) for Remove a Leap Second.
Page 185: Local Clock(S), Dst
3.2 System Time a. A leap second is pending, and NetClock has obtained this information automatically from the GPS data stream. b. A leap second had been configured previously by a user via the Edit Leap Second window. 2. To access the Edit Leap Second information window, click the GEAR icon in the...
Page 186 3.2 System Time 1. Navigate to MANAGEMENT > OTHER: Time Management. 2. Click the PLUS icon in the Local Clocks panel in the Time Management screen. 3. The Local Clock pop-up window will display. 4. Enter a Name for your local clock. The name must be between 1 and 64 characters long;...
Page 187 3.2 System Time All of the UTC Offset drop-down selections are configured as UTC plus or minus a set number of hours. Examples for the US: For Eastern, choose UTC– 05:00; for Central, choose UTC-06:00; for Mountain, choose UTC-07:00; and for Pacific, choose UTC-08:00.
Page 188: Dst Examples
3.2 System Time Note: If a pre-configured rule DST rule happens to be changed in the future (like the change to the US DST rule in 2006), this option allows the DST rules to be edited without the need to perform a software upgrade for a new DST rule to be defined.
Page 189: Dst And Utc, Gmt
3.3 Managing References E x a m p l e 2 : To create a Local Clock for a NetClock installed in the Eastern Time Zone of the US, and desiring the Local Clock to automatically adjust for DST (using the post 2006 DST rules for the US).
Page 190 Note: The References shown on your screen may look different from the illustration below, depending on your NetClock 9400 Series Time Server model and hardware configuration. Each available type of Time and 1PPS input reference is assigned a human-read- able name or “title”...
Page 191: Configuring Input Reference Priorities
3.3 Managing References Title Reference PTP input IRIG IRIG timecode input Local System Built-in clock OR internal 1PPS generation NTP input User Host (time is manually set by the user) HAVEQUICK HAVEQUICK input The number displayed indicates the number of feature inputs of that type presently installed in the NetClock–...
Page 192 3.3 Managing References 1. On the HOME screen, click the GEAR icon in the Reference Status panel: 2. The Configure Reference Priorities screen will display. The Reference Priority screen is divided into 3 areas: a. The Actions panel, which provides a single action: Restore Factory Defaults b.
Page 193 3.3 Managing References Adding an Entry to the Reference Status Table To add a new entry to the Reference Status table: 1. Navigate to the Configure Reference Priorities screen via MANAGEMENT > OTHER: Reference Priority. 2. Click the PLUS icon in the top right-hand corner of the Configure Refer- ence Priorities table.
Page 194: The "Local System" Reference
3.3 Managing References 2. Click and hold on the item whose priority you wish to reorder. 3. Drag the item up or down to the desired place. 4. Click Submit. Resetting Reference Priorities to Factory Defaults To reset all references in the Reference Priority table to their factory default pri- orities: 1.
Page 195: The "User/User" Reference
3.3 Managing References Note: For NetClock to operate as a Local System reference, you must have either a valid external Time reference, or a valid external 1PPS reference. When the Time reference is configured as Local System, NetClock's System Time is considered a valid reference, as long as the external 1PPS input ref- erence is valid.
Page 196 3.3 Managing References Caution: Since the User/User reference is not traceable to a valid ref- erence, it does not qualify as a legitimate time source. Operating NetClock with a manually set User time bears the risk of inad- vertently outputting an illegitimate System Time thought to be a valid reference time.
Page 197 3.3 Managing References See also below, "How long will the User/User reference be valid?": The notion of limiting the validity of the User/User reference also serves as a safety feature. How long will the User/User reference be valid? Since the User/User reference does not qualify as a legitimate, traceable time, it becomes invalid once NetClock is reset, or power-cycles, or after the Holdover Time expires (whichever occurs first).
Page 198: Reference Priorities: Examples
3.3 Managing References 3.3.1.4 Reference Priorities: EXAMPLES Example 1 – GNSS as primary reference, IRIG as backup: In this use case, the objective is to use: GNSS as the primary Time, and 1PPS reference IRIG as the backup Time, and 1PPS reference. Step-by-step procedure: 1.
Page 199 3.3 Managing References Example 3 – NTP input as the only available input (“NTP Stratum 2 operation”) In this use case, the objective is to have NTP provided by another NTP server as the only available reference input, i.e. the unit to be configured is operated as a Stratum 2 server.
Page 200 3.3 Managing References 1. If necessary (see NOTE above), create a “User.” 2. Move the reference which has “User 0” in the Time column and “User 0” in 1PPS column to the top of the table, with a Priority value of 1. Click the Enabled checkbox.
Page 201: Reference Qualification And Validation
3.3 Managing References As there is no default entry for “Local System” and “GPS”, a new entry needs to be added to the Reference Priorities table in order to use this combination of ref- erences. Step-by-step procedure: 1. Add a reference to the Reference Priority by clicking the PLUS icon. Use the following settings, then click Submit: In the Priority Level...
Page 202 3.3 Managing References To monitor the quality of references, navigate to TOOLS > SYSTEM: Reference Monitor. The Reference Monitor screen will display: On the left side of the screen, Status information is displayed for the System and the References. Note that the Reference Status panel also displays the latest PHASE OFFSET reading for active references against the System Ontime Point.
Page 203: Interference Detection And Mitigation (Idm Suite)
3.3 Managing References If the higher threshold value is exceeded, the automatic failover will cause NetC- lock to fall back to its next lower reference (if available). If no other reference is found, the unit will transition into a 1200-second coasting period.
Page 204 3.3 Managing References How BroadShield Works BroadShield monitors the GPS signal frequency band by applying proprietary error detection algorithms. If a threshold signal monitoring value level is exceeded, NetClock will emit a Major Alarm and – depending on your system con- figuration –...
Page 205 3.3 Managing References Newly purchased units that are ordered with either level of BroadShield should have the necessary patch and/or license already installed. Customers adding BroadShield to their units will need to obtain access. For access to the jamming- only portion of BroadShield, you will need to install a patch.
Page 206 3.3 Managing References 1. Navigate to MONITORING > BroadShield. 2. In the BroadShield Service panel on the left, configure the desired setting: Note: Turning BroadShield and Auto Sync Control an invalid setting and will cause a "Failed to connect to the unit..."...
Page 207 3.3 Managing References HOME BASE By setting the HOME BASE position you allow BroadShield to use this location as a reference position for spoofing detection: Should BroadShield detect that the geographic position reported by NetClock's GPS receiver seems to move beyond the set Alarm Threshold (even though NetClock does not move), an alarm will be triggered.
Page 208: Broadshield Alarm
3.3 Managing References ALGORITHMS This menu option allows you to disaable/enable Jamming or Spoofing. Spoofing refers to impersonating the live- sky GNSS signal, thus "deceiving" the GNSS receiver, while Jamming refers to interference of the signal, i.e. making the live-sky GNSS signal unusable. Per default, both are Enabled if you have the full BroadShield license.
Page 209: Broadshield Web Ui Monitoring
3.3 Managing References You can also configure a notification alarm, see "Enabling/Disabling the BroadShield Service" on page 189. 3.3.4 BroadShield Web UI Monitoring The BroadShield Web UI will also display real time signal status information, or a map status. Note: If at any time you receive an error message Failed to connect to the unit, the NetClock Web UI may have timed out (see...
Page 210 3.3 Managing References Top graph The Dashboard top graph displays the past signal level over time, divided into a Normal and a Critical signal level (separated by a line). A blue line in the Crit- ical zone indicates a potential jamming incident, while a green line indicates that NetClock may be subject to a spoofing attack.
Page 211: Status Information
3.3 Managing References Note: The BroadShield GNSS1 reference refers to the SecureSync GNSS 0 reference. Status information Time: Time and Day as provided by NetClock's GNSS receiver. Position: The position as determined by NetClock's GNSS receiver. Satellites Used: The number of satellites currently received by NetClock. This number includes all satellites currently received for all enabled con- stellations (see "Selecting GNSS Constellations"...
Page 212 3.3 Managing References Signal-to-noise bar graph This graph visualizes the signal-to-noise ratio for up to 20 received satellites in real time. The satellites are numbered by their NMEA ID's (as in the skyplot men- tioned above). The map displays your current position, as reported by the GPS receiver. Should the displayed position differ from the actual antenna position, the GPS signal is likely spoofed.
Page 213: The Gnss Reference
3.3 Managing References to configure Notifications, see "Notifications" on page 248. 3.3.5 The GNSS Reference With most applications, NetClock will be setup such that it utilizes a GNSS signal as the primary (if not the only) timing reference. NetClock's GNSS receiver utilizes the signal provided by the GNSS antenna. The GNSS receiver analyzes the incoming GNSS data stream and supplies the GNSS time and 1PPS (Pulse-Per-Second) signal to NetClock's timing system.
Page 214: Reviewing The Gnss Reference Status
3.3 Managing References To access the GNSS Receiver settings: 1. Navigate to INTERFACES > REFERENCES: GNSS Note: Typically, there will be only one GNSS reference, numbered "0". 2. The GNSS 0 status window will open. To open the configuration window, click Edit in the bottom-left corner.
Page 215 3.3 Managing References 1. Navigate to INTERFACES > REFERENCES: GNSS Reference. 2. Click the INFO button next to GNSS 0. The GNSS 0 status window will dis- play; it contains two tabs, explained in detail below: Main [= default], and Satellite Data.
Page 216 3.3 Managing References Under the Main tab, the following information will display: Note: Detailed information on the different parameters can be found in the subsequent GNSS topics. CHAPTER • NetClock User Reference Guide Rev. 23...
Page 217 3.3 Managing References Manufacturer/Model: The manufacturer and/or model of the GNSS receiver in your NetClock unit. Validity: Status indicator lights for TIME 1PPS signals: “On” (green) indicates a valid signal, “Off” (red) indicates that no valid signal is available. yellow 1PPS light indicates that the monitored 1PPS value fell below a quality threshold and the unit is in flywheel mode (for more information, see...
Page 218 3.3 Managing References Server A-GNSS Data: A-GPS data is AVAILABLE and can be downloaded by clients, or it is UNAVAILABLE Identified Satellite Signal Strengths: Bar graphs for all satellites detected. Color indicates signal strength. With your mouse pointer, hover over a bar graph to display tool tip inform- ation about satellite constellation, satellite number, and signal strength.
Page 219: Determining Your Gnss Receiver Model
3.3 Managing References In both graphs, to see a legend of the graphical data, and time- specific status data, click inside the graph, choosing the desired point in time. If necessary, increase the time resolution by dragging the time sliders. A pop- up window will display the legend for that graph, and the status information for the selected time.
Page 220: Gnss Receiver Models
GNSS Receiver: GNSS Receiver Models Safran strives to equip NetClock with current technology. Depending on the pro- duction date of your NetClock unit, one of the following GNSS receiver models will be installed in your unit (if any): ®...
Page 221 3.3 Managing References Multi-GNSS reception: Yes, within these permissible settings: GLONAS- Beido- GPS Galileo – – – – – – – – – – – – – – Note: The augmentation systems SBAS and QZSS can be enabled only if operation is configured.
Page 222: Selecting A Gnss Receiver Mode
3.3 Managing References ® Trimble Res-T Production dates: up to 2014 Constellations: GPS Other characteristics: A-GPS option: No Server A-GNSS option: Yes, for GPS. Resurvey: Automatic, after being moved and rebooted — can be changed, "Setting GNSS Receiver Dynamics" on page 209.
Page 223 3.3 Managing References 2. Select Edit in the bottom-left corner. The GNSS 0 configuration window will open: 3. Select the desired Receiver Mode, and click Submit. GNSS Receiver Modes The receiver modes are: Standard GNSS Receiver Mode The default GNSS receiver mode is the Standard Mode: It is the most accurate, and hence the preferred GNSS receiver mode.
Page 224 3.3 Managing References In the event that NetClock cannot complete a GNSS survey within 24 hours (e.g., the survey progress does not go beyond 99%), see "Single Satellite GNSS Receiver Mode" below. Single Satellite GNSS Receiver Mode The Single Satellite Mode is designed for use cases in which it is not possible for the GNSS receiver to track at least four GNSS satellites for at least...
Page 225: Setting Gnss Receiver Dynamics
3.3 Managing References 3.3.5.4 Setting GNSS Receiver Dynamics Receiver Dynamics further refine the reception characteristics for the individual receiver modes and determine if the receiver will automatically resurvey after a reboot. Note: This option only applies to u-blox M8T receivers and Trimble Res-T receivers (RES-SMT-GG and SAASM GPS do NOT support...
Page 226 3.3 Managing References Land (Resurvey): [default] When used with the Mobile Receiver Mode, the receiver is adjusted for typ- ical dynamic land-based applications. When used with the Standard Receiver Mode, this setting also will auto- matically initiate a resurvey after NetClock reboots, in order to account for a possible relocation.
Page 227: Performing A Gnss Receiver Survey
3.3 Managing References 3.3.5.5 Performing a GNSS Receiver Survey Note: This topic only applies to stationary applications – in Mobile receiver mode NO surveys will be carried out since the position is updated continuously. When NetClock's integrated GNSS receiver performs a survey, it tries to determ- ine or verify its geographic position with high accuracy.
Page 228: Gnss Receiver Offset
3.3 Managing References To see if NetClock's GNSS receiver is performing a survey and if so, verify its pro- gress: 1. Navigate to INTERFACES > REFERENCES: GNSS 2. The survey status (ACQUIRING, COMPLETE, or progress in percent) is dis- played under the line item Survey Progress. Note: Once a survey has been initiated, the Survey Progress may not be displayed right away until the receiver has com-...
Page 229 V = Nominal velocity of propagation expressed as decimal, i.e. %66 = 0.66 Value is provided by cable manufacturer. When using Safran LMR-400 or equivalent coaxial cable, this formula equates to approximately 1.2 nanoseconds of delay per every foot of cable. To calculate the Offset value (cable delay), multiply the length of the entire cable run by “1.2”...
Page 230: Resetting The Gnss Receiver
Resetting the GNSS receiver may become necessary in the rare event of internal communication issues, and is typically ONLY required if Safran Technical Support advises you to execute this command. Note that resetting the GNSS receiver is not the same as "Deleting the GNSS...
Page 231 3.3 Managing References a GNSS antenna is connected to NetClock the GNSS receiver can track at least four satellites continuously and the GNSS receiver it is configured to operate in Standard Mode. The objective of the GNSS Survey is to re-discover the current antenna position. Note: self survey will take at least 2000 seconds (33 minutes).
Page 232: Manually Setting The Gnss Position
3.3 Managing References Locate the Delete Position box, check it, and click Submit. 4. NetClock will initiate a GNSS self survey. Note: Mobile Receiver Mode it is NOT possible to delete the pos- ition and start the GNSS survey. This feature is only available in Standard Mode and in Single Satellite...
Page 233 3.3 Managing References Setting a Manual Position, however, i.e. manually applying your current geo- graphic position data (Latitude, Longitude, and Altitude) may be necessary if your GNSS receiver could not complete its survey due to poor reception. In some cases, setting the position manually may also help to reduce the amount of time needed for the initial position "fix", i.e.
Page 234 3.3 Managing References R e a s o n s f o r m a n u a l l y e n t e r i n g y o u r p o s i t i o n Manually entering your position may not only reduce the time to “first fix”...
Page 235: 3.3.5.10 Gnss Constellations
3.3 Managing References 5. Determine your altitude: To find the elevation of your location, search online for a Google Maps elevation finder tool. Do not forget to add the height above ground for your antenna. If a more exact altitude is desired, the use of a topographical map is recom- mended.
Page 236 3.3 Managing References To learn more about determining which receiver model is installed in your unit, and which GNSS constellations and combinations are supported, see "Determin- ing Your GNSS Receiver Model" on page 203. In new NetClock units, per default both GPS, and Galileo are enabled. Either selec- tion can be disabled, but not both of them (if both are turned off, no changes will be saved and the last constellation setting will be preserved).
Page 237 About QZSS QZSS is disabled by default. In order to receive QZSS signals, you must either be located in the Japan region, or use a GNSS simulator (such as Safran GSG-5 or -6 Series). QZSS is not considered a standalone constellation and while NetClock allows you to enable QZSS by itself, it is recommended to use it in combination with GPS.
Page 238 3.3 Managing References 3. Under Identified Satellite Signal Strengths hover with your cursor over the bars: The letter in the tooltip window displayed for each signal bar indicates which constellation the satellite belongs to: Letter sym- GNSS Con- stellation GLONASS Galileo QZSS BeiDou...
Page 239: A-Gps
3.3 Managing References 3.3.5.11 A-GPS A-GPS stands for Assisted GPS. This widely-used technology involves providing additional data to the GNSS receiver by an alternative means of communication (e.g., via IP, or by manual data entry), thereby reducing the time for the receiver to acquire and track the actual satellite signals.
Page 240 3.3 Managing References 2. In the GNSS Reference panel on the right, click the GEAR button next to GNSS 0. In the GNSS 0 window, locate the A-GPS panel at the bottom. Note: The options displayed on your screen depend on your system configuration.
Page 241 3.3 Managing References Note: Once you click Submit, any parameters entered under Apply A-GPS Data will override the System time and position data. Exer- cise caution when using this feature, since it could negatively impact the GNSS receiver operation. Use Current System Time Apply NetClock's currently used System time to the GNSS receiver.
Page 242 3.3 Managing References server allows the collection of RINEX3- formatted navigation files and GPS almanac files. These files can then be accessed by other devices (e.g., GSG-series signal simulators) on your network, making this NetClock unit a valid source for A-GNSS ephemeris and almanac data.
Page 243 Any device that can use RINEX data, can be directed to the locations where they are stored. For example, Safran's GSG-series GNSS simulators allow for a server location to be set. With other equipment, you can also download the data to your CHAPTER •...
Page 244: Holdover Mode
3.4 Holdover Mode computer, and then move the files to where they are needed. To download the data to a client computer, point your computer's web browser to the following address: For hourly ephemeris data: http://[IP address of your unit]/files/pub/gps/data/hourly/[YYYY]/[ZZZ]/hour[ZZZ]0.15n.Z For daily ephemeris data: http://[IP address of your unit]/files/pub/gps/data/daily/[YYYY]/[ZZZ]/15n/spec[ZZZ]0.15n.Z For almanac data:...
Page 245 3.4 Holdover Mode Holdover is that time synchronization and the availability of the time outputs is not immediately lost when input references are no longer available. While NetClock is in Holdover, the only difference is the Holdover and associated Minor alarm are asserted. There are no changes to NTP or any of the other out- puts, i.e.
Page 246 3.4 Holdover Mode For more information on the TFOM value and Phase Error Limit, see "Con- figuring the Oscillator" on page 234. Note: Changes made to the Holdover Timeout always take effect immediately. If NetClock is in Holdover and the Holdover timeout is changed to a value that is less than the current time period that NetClock has been in Holdover Mode, the unit will immediately declare loss of synchronization.
Page 247 3.4 Holdover Mode instance, a Rubidium oscillator will maintain significantly better time over a longer Holdover duration than a TCXO oscillator (TCXOs are considerably less stable than a Rb oscillator). Oscillator Phase Drift The chart below provides typical stability performance for the oscillator types that can be found in NetClock units.
Page 248: Managing The Oscillator
3.5 Managing the Oscillator Configuring a Holdover value exceeding 30 days could result in a one-second time error in the UTC or Local timescales until an external reference (GNSS or IRIG input) is restored or a manually configured Leap Second is asserted by a user (leap seconds do not affect the GPS and TAI time scales).
Page 249: Oscillator Types
3.5 Managing the Oscillator If no external input reference such as GNSS, IRIG, etc. is available (or is tem- porarily lost), NetClock may become an NTP Stratum 2 or higher reference. If so configured, NetClock can use a reference such as an NTP daemon, referred to as a Host Reference.
Page 250: Configuring The Oscillator
Oscillator: It is possible for an external oscillator to be locked to NetClock's 10 MHz output via an external PLL, with the lock state of the external PLL monitored by NetClock. Contact Safran for more information. 3.5.2 Configuring the Oscillator NetClock is equipped with an internal oscillator. To configure the oscillator set- tings: 1.
Page 251 3.5 Managing the Oscillator 3. Populate the fields: Maximum TFOM for Sync: When TFOM (Time Figure of Merit, see also "Time Figure of Merit (TFOM)" on the next page) is greater than Max TFOM, disciplining will still be attempted against the selected ref- erence to improve the TFOM.
Page 252: Time Figure Of Merit (Tfom)
3.5 Managing the Oscillator system 1PPS, as it may occur when going back into sync to the external reference after a long holdover. A Restart Tracking will re- align the system 1PPS with the reference 1PPS very quickly, but may cause the 1PPS output to jump.
Page 253: Monitoring The Oscillator
3.5 Managing the Oscillator Reported TFOM Value Estimated Time Error (ETE) 100 nsec < ETE <= 1 μsec 1 μsec < ETE <= 10 μsec 10 μsec < ETE <= 100 μsec 100 μsec < ETE <= 1 msec 1 msec < ETE <= 10 msec 10 msec <...
Page 254 3.5 Managing the Oscillator 1. Navigate to MANAGEMENT > OTHER: Disciplining. 2. The Oscillator Management screen will display. It consists of two panels: The Oscillator Status Panel This panel provides comprehensive information on the current status of NetClock's timing state. Oscillator Type: Type of oscillator installed in the unit.
Page 255 3.5 Managing the Oscillator this window will vary depending upon the type of oscillator installed and the oscillator adjustment algorithm). Current DAC Setting: Current DAC value, as determined by the oscillator disciplining system. The value is converted into a voltage that is used to dis- cipline the oscillator.
Page 256: Oscillator Logs
3.5 Managing the Oscillator Last Time Reference Change: [Timestamp: Last occurrence] Last 1PPS Reference Change: [Timestamp: Last occurrence] Last TFOM Change: [Timestamp: Last occurrence] Last Sync State Change: [Timestamp: Last occurrence] Last Holdover State Change: [Timestamp: Last occurrence] The Oscillator History Panel The Oscillator History Panel offers real-time graphical monitoring of NetClock’s internal timing.
Page 257 3.5 Managing the Oscillator 3. The log file will be downloaded onto your local computer. Its name is oscil- latorStatusLog.csv. Depending on the operating system you can open the file, or save it locally. delete the log file, click the TRASH CAN icon, and confirm. CHAPTER •...
Page 258 3.5 Managing the Oscillator BLANK PAGE. CHAPTER • NetClock User Reference Guide Rev. 23...
Page 259: System Administration
CHAPTER 4 System Administration The following topics are included in this Chapter: 4.1 Powering Up/Shutting Down 4.2 Notifications 4.3 Managing Users and Security 4.4 Miscellanous Typical Configuration Tasks 4.5 Quality Management 4.6 Updates and Licenses 4.7 Resetting the Unit to Factory Configuration CHAPTER •...
Page 260: Powering Up/Shutting Down
4.1 Powering Up/Shutting Down Powering Up/Shutting Down 4.1.1 Powering Up the Unit 1. After installing your NetClock unit, verify that power is connected, then turn ON the unit using the switch on the rear panel, and wait for the device to boot up.
Page 261: Shutting Down The Unit
Gracefully shutting down NetClock by using the HALT command offers the fol- lowing advantages over shutting the unit down via the AC ON/OFF switch (see "NetClock 9400 Series Rear Panels" on page 11), or otherwise interrupting the AC or DC supply power:...
Page 262 4.1 Powering Up/Shutting Down Note: Wait 30 seconds after entering the HALT command before removing power. Once the HALT process has been initiated via the Web UI or front panel, the front panel LCD will display Power off NetClock, and the front panel LED time display will stop incrementing.
Page 263: Rebooting The System
4.1 Powering Up/Shutting Down Once the HALT process has been initiated, the front panel LCD will display Power off NetClock, and the front panel LED time display will stop incrementing. Note: After issuing the HALT command wait 30 seconds before you remove power.
Page 264: Notifications
4.2 Notifications Notifications If an event occurs e.g., NetClock transitions into Holdover, or a short is detected in the GNSS antenna, NetClock can automatically notify users that a specific event has occurred. In some situations, two events are generated. One event occurs in the transition to a specified state and then another event occurs when transitioning back to the original state.
Page 265 4.2 Notifications 1. Navigate to MANAGEMENT > OTHER: Notifications. The Notifications screen will display: It is divided into two panels: Actions panel, featuring: SNMP Setup button: See "SNMP" on page 89. Email Setup button: Configure NetClock's interface settings for Exchange email servers and Gmail. For more information on this subject, see the Technical Note Email Notification Setup.
Page 266 4.2 Notifications The columns under each tab are: Event—This is the event that will trigger the notification. The events under each tab will vary according to context. Mask Alarm—Check here to enable an alarm mask. Enabling an alarm mask for a given notification will prevent that notification from gen- erating an alarm condition.
Page 267: Notification Event Types
4.2 Notifications For each event, only the notification options available can be configured. For example, a mask alarm can be set for an In-Sync event, and a Not-in- Sync event, but not for an In-Holdover event. 4.2.2 Notification Event Types The following types of events can be used to trigger notifications: 4.2.2.1 Timing Tab: Events...
Page 268: System Tab: Events
4.2 Notifications Under the GPS Events tab, you can also configure Minor and Major Alarm Thresholds for GNSS fault events; see "Configuring GPS Notification Alarm Thresholds" below. 4.2.2.3 System Tab: Events Minor Alarm Active Minor Alarm Inactive Major Alarm Active Major Alarm Inactive Unit Reboot Timing System Software Error Timing System Hardware Error...
Page 269 4.2 Notifications Note: While GPS Notification Alarms can be used in Mobile GNSS receiver mode, it is not advisable. To determine which GNSS receiver mode your NetClock is using and how many satellites your NetClock unit is currently receiving, navigate to INTERFACES > REFERENCES: GNSS 0.
Page 270: Setting Up Snmp Notifications
4.2 Notifications when the receiver falls below the number of Minimum Satellites you specified above). 4.2.4 Setting Up SNMP Notifications SNMP Notifications are SNMP traps that occur on a change of a monitored event. To configure SNMP notifications: 1. Navigate to MANAGEMENT >...
Page 271 4.2 Notifications The Email Setup window will display: The Email Configuration box provides two example configuration files. One is for interfacing NetClock with an Email Exchange server; and the other is for sending emails via Gmail: 4. To configure the applicable example email configuration, delete the com- ments (“#”) from each line and replace the “<>”...
Page 272 4.2 Notifications E x a m p l e I I : S M T P i n t e r f a c e t o G m a i l set smtp=smtp.gmail.com:587 set smtp-use-starttls set ssl-verify=ignore set smtp-auth-user=<user name, example user_xyz123@gmail.com> set smtp-auth-password=<password>...
Page 273: Managing Users And Security
"factory" The default factory account with the username is meant to provide access to Safran technical support personnel. You can delete this account, if you Clean and Halt command (see so prefer. Note, however, that executing the "Cleaning the Configuration Files and Halting the System" on page 346...
Page 274: Interfaces Menu
4.3 Managing Users and Security main menus will differ in such that the "user" UI will show fewer (if any) con- figuration options: The status information presented, however, will be largely identical. The most significant differences are visible in the MANAGEMENT menu, since most of the Setup menus are hidden from "user"...
Page 275: Tools Menu
4.3 Managing Users and Security FTP, SSH and HTTP/HTTPS). The switches can be moved, but an error message will be displayed shortly thereafter. Authentication: "user" can access this page but can only change his/her own password. Users cannot create any new accounts and cannot modify any accounts.
Page 276 NetClock. Note: The spfactory account is for use by Safran service per- sonnel. While the spfactory account can be deleted by an admin- istrator, it should be noted that this may potentially limit remotely provided technical support.
Page 277 4.3 Managing Users and Security To add a user account: 1. Enter a Username. (For rules, see "Rules for Usernames" on page 259.) 2. Enter a Password. The password requirements are configurable, see "Managing Passwords" on the next page. By default a password can be any combination of upper- and lower-case characters.
Page 278: Managing Passwords
4.3 Managing Users and Security To change a user account: 1. In the Add or Change User window the Username field will be populated. a. To change it, type the new name. b. To change the user account’s password, type the new password in Password field and confirm it in the Repeat New Password...
Page 279: The Administrator Password
4.3 Managing Users and Security fields and click Submit. 4.3.2.2 The Administrator Password The factory default administrator login password value of admin123 can be changed from the default value to any desired value. If the current password is known, it can be changed using the NetClock Web UI. Caution: Once you log in to your NetClock, you will be prompted to update your spadmin password.
Page 280: Lost Password
4.3 Managing Users and Security Changing the admin password To change the admin password from a known value to another desired value: 1. Navigate to MANAGEMENT > OTHER: Change My Password. 2. The Change Password window will display. 3. In the Old Password field, type the current password.
Page 281 4.3 Managing Users and Security Any user with administrator rights can reset the spadmin password through the MANAGEMENT > OTHER: Authentication window. Changing the "spadmin" password via Web UI To change the spadmin password: 1. Navigate to the MANAGEMENT > OTHER: Authentication window.
Page 282 4.3 Managing Users and Security Resetting the "spadmin" account password via the keypad: 1. Use the front panel LCD and the keypad to perform a RESETPW. See also "Front Panel Keypad, and Display" on page 7. (RESETPW is located in the Home/System menus).
Page 283: Ldap Authentication
4.3 Managing Users and Security 4.3.3 LDAP Authentication LDAP (Lightweight Directory Access Protocol) authentication provides the means to use an external LDAP server to authenticate the user account cre- dentials when logging in to NetClock. LDAP allows the login password for user- created accounts to be stored and maintained in a central LDAP or server on the network.
Page 284 4.3 Managing Users and Security 3. The LDAP Setup window will display. 4. There will be 5 tabs from which to choose: Settings: This is where you set up the general LDAP Distinguished Name and Bind settings. Security: This is where you upload and manage the CA server cer- tificate, CA client certificate and CA client key.
Page 285 4.3 Managing Users and Security Bind DN: Enter the Distinguished Name used to bind to (this is an optional field if the database allows anonymous simple authentication). You are able to use any same level of the tree and everything below. The bind DN is the user that is permitted to search the LDAP dir- ectory within the defined search base.
Page 286 4.3 Managing Users and Security For each: a. If necessary, create the desired certificate or client key. See "NTP Autokey: IFF Autokey Support" on page 120 for information on client keys. b. Click the INFO icon for the certificate you wish to upload. c.
Page 287 4.3 Managing Users and Security a. Select the Enable group filter checkbox. b. Enter information for: Required Group—Enter the required group. Example. : ou=Group, dc=example, dc=com. Group Attribute—Enter the group attribute. Example: member. NSS base group—Enter the nss_base group. Example: ou=Group, dc=example, dc=com?one.
Page 288 4.3 Managing Users and Security Under the LDAP Servers tab, the window displays: Server—The hostname(s) or IP address(es) of the LDAP server(s) that have been added. Action—After a server has been listed, it can be removed by clicking the X-button. LDAP Server Status—This will display one of the following states: PASS...
Page 289: Radius Authentication
4.3 Managing Users and Security 4.3.4 RADIUS Authentication RADIUS authentication provides a means to use an external RADIUS server for authentication purposes when logging in to NetClock. RADIUS allows the login password for user- created accounts to be stored and maintained in a central RADIUS server on the network.
Page 290: Adding/Removing A Radius Server
4.3 Managing Users and Security 3. Check the box labeled HTTP/HTTPS if you want to enable RADIUS, or uncheck the box if you want to disable RADIUS. 4. If you are enabling the service, in the Retransmit Attempts field, select the number of retries for NetClock to communicate with the RADIUS server (default = 0).
Page 291 4.3 Managing Users and Security 3. Fill out the fields: Host: The hostname or IP address of the RADIUS server Port: Defines the RADIUS Port to use. The default RADIUS Port is 1812, but this can be changed, as required. Secret Key: The secret key which is shared by NetClock and the RADIUS server (the key is used to generate an MD5 hash).
Page 292: Tacacs+ Authentication
4.3 Managing Users and Security 4.3.5 TACACS+ Authentication Terminal Access Controller Access-Control System Plus (TACACS+) is a protocol that handles authentication, authorization, and accounting (AAA) services. NetC- lock supports pam_tacplus, allowing users to validate their username/password when logging into NetClock via a TACACS+ server. Currently, http/ht- tps/ssh/telnet/ftp protocols are supported, i.e.
Page 293: Adding/Removing A Tacacs+ Server
4.3 Managing Users and Security 1. In the Web UI, navigate to MANAGEMENT > OTHER: Authentication. 2. In the Actions panel on the left, click TACACS+. The TACACS+ Setup win- dow will be displayed. 3. Check the box labeled HTTP/HTTPS if you want to enable TACACS+, or uncheck the box if you want to disable TACACS+.
Page 294: Https Security Levels
4.3 Managing Users and Security 5. To remove a TACACS+ server from the list, click the X-button in the Actions column. Note: NetClock supports multiple TACACS+ servers. The system per- formance, however, will be negatively affected by a large number of servers or invalid servers, respectively.
Page 295: Unlocking The Keypad Via Keypad
4.3.8 If a Secure Unit Becomes Inaccessible Safran assumes that you are responsible for the physical security of the product. Safran secure products are recommended to be locked in a secure enclosure, cab- inet or room. Unauthorized persons are not to be given access to the product nor should a serial cable and terminal program be attached unless the system admin- istrator is configuring or performing maintenance.
Page 296: Miscellanous Typical Configuration Tasks
4.4 Miscellanous Typical Configuration Tasks your company disables HTTPS you lose the system passwords you allow the Certificate to expire someone deletes the Certificate and Private Keys and deletes the Host Keys you forget the Passphrase. To regain access to the NetClock unit, you must utilize the front panel keypad and LCD in order to restore the spadmin account’s default password.
Page 297: Configuring The Front Panel
4.4 Miscellanous Typical Configuration Tasks 1. Navigate to the MANAGEMENT > Network Setup screen. 2. In the Actions panel on the left, click on Web Interface Settings. 3. In the Web Interface Settings window, enter the desired value in minutes. In order for a new setting to take effect, you need to log off, and then log back in again.
Page 298 4.4 Miscellanous Typical Configuration Tasks To access the front panel configuration window: 1. Navigate to MANAGEMENT > OTHER: Front Panel. 2. The Front Panel configuration window will display: Next to the graphical near-real time representation of the 4-line front panel information display, the following functionality can be accessed in this win- dow: Show...
Page 299 4.4 Miscellanous Typical Configuration Tasks Note: If GPS or TAI time is used, then the proper timescale off- sets must be set on the MANAGEMENT/OTHER/Time Man- agement page. Lock Keypad—If desired, the front panel keypad can be locked to pre- vent inadvertent operation.
Page 300 4.4 Miscellanous Typical Configuration Tasks Day of Year—This option displays the day of year (such as “Day of Year 104”). GNSS—This option displays the number of satellites currently being used (and the strongest signal strength out of all these satellites) and their relative signal strengths of all the receiver channels that are tracking satellites as a bar graph.
Page 301: Displaying Local Time
4.4 Miscellanous Typical Configuration Tasks 4. Select the Lock Keypad check box if you want to lock the front panel keypad. [DEFAULT = unlocked (unchecked)] 5. Deselect the Allow Position Display checkbox if you do not want to enable the option to display position data on the front panel information display. See also Allow Position Display.
Page 302: Creating A Login Banner
4.4 Miscellanous Typical Configuration Tasks 4.4.5 Creating a Login Banner A login banner is a customizable banner message displayed on the login page of the NetClock Web UI. The login banner can be used, for example, to identify a unit. Figure 4-2: Login banner (example) To configure a login banner:...
Page 303: Configuring An External Display Clock
4.4 Miscellanous Typical Configuration Tasks the NetClock front panel time. To display the screen clock instead of the Web UI: 1. Navigate to TOOLS > SYSTEM: Show Clock: To return to the standard Web UI, click Home. 4.4.7 Configuring an External Display Clock A frequently requested configuration is to connect and configure a remote Spec- ®...
Page 304 4.4 Miscellanous Typical Configuration Tasks 2. Navigate to the INTERFACES menu, and select ASCII Output 1 (the RS-485 Output). In the window that opens, click the EDIT button: 3. In ASCII Output 1 configuration window, select: Under Format Group: Spectracom Under Format 1: Spectracom Format 0, and Under Timescale: the...
Page 305: Product Registration
Upon initial start of the NetClock Web UI (see "Accessing the Web UI" on page 55), you will be prompted to register your new product. It is also possible to register at a later time via the HELP menu item, or directly on the Safran Trusted 4D website: https://register.safran-navigation-timing.com/ CHAPTER •...
Page 306: Synchronizing Network Pcs
Frequently, network PCs have to be synchronized to NetClock via the Ethernet port, using NTP (Network Time Protocol). A detailed description on how to syn- chronize Windows PCs can be found online in the Safran Technical Note Syn- chronizing Windows Computers...
Page 307: Status Monitoring Via The Web Ui
4.5 Quality Management For more information on the Status LEDs, see "Status LEDs" on page 9. For more information on the Information Display, see "Configuring the Front Panel" on page 281. It is also possible to display the front panel information display on the Web UI: Navigate to MANAGEMENT >...
Page 308 4.5 Quality Management System Status panel Reference—Indicates the status of the current synchronizing reference, if any. Power—Indicates whether the power is on and which type of power is being used. If the unit is configured for AC power, AC will appear in this panel.
Page 309 4.5 Quality Management NTP—Current STRATUM status of this NetClock unit. Temperature—The current board temperature will be displayed here, plus— depending on product configuration—oscillator, and CPU temperatures, as well. For more information, see "Temperature Management" on page 313. Reference Status panel REFERENCE: Indicates the name type of each reference. These are determ- ined by the inputs set up for the NetClock PRIORITY: Indicates the priority of each reference.
Page 310 4.5 Quality Management Note: If you know the individual reference or output whose status you wish to see, you can access the Status window of that reference or output directly through the INTERFACES > REFERENCES or INTERFACES > OUTPUTS drop-down menu. Status Monitoring via the System Monitor Screen To display status information pertaining mainly to NetClock's current hardware status, navigate to TOOLS >...
Page 311: Status Monitoring Of Input References
4.5 Quality Management To download the logged data in .csv format, click the ARROW icon. 4.5.1.3 Status Monitoring of Input References NetClock’s input references can be monitored in real time through the INTERFACES menus. The menus will populate dynamically, depending on which references are available.
Page 312: Reference Monitoring: Phase
4.5 Quality Management To display more status information for a particular input reference, click the corresponding INFO button: The reference window being displayed will show additional status inform- ation and option-card specific settings. The type of input reference, and the option card model determine which status information and option card set- tings will be displayed.
Page 313 4.5 Quality Management filtered phase differences between each input reference 1PPS, and the internal dis- ciplined 1PPS. The data is plotted in a graph in real-time. The plot also allows you to display his- toric data, zoom in on any data range or on a specific reference. A data set can be exported, or deleted.
Page 314: Ethernet Monitoring
4.5 Quality Management internal system reference. The standard deviation is used to calculate two validity thresholds, a higher and a lower one (the latter acts as a hysteresis buffer, pre- venting the status flip/flopping if the actual phase error validation value varies closely around the outer threshold).
Page 315: Outputs Status Monitoring
4.5 Quality Management 1. Navigate to TOOLS > SYSTEM: Ethernet Monitor. The Ethernet monitoring screen opens: The data displayed is linked to a specific Ethernet port e.g., ETH0. If you enable additional Ethernet ports, their throughput data will also be displayed. In the Traffic pane on the right the traffic throughput in Bytes per second is dis- played in two graphs.
Page 316 4.5 Quality Management Monitoring the status of all outputs To display a list of all the outputs installed in a NetClock unit: 1. Select INTERFACES and click OUTPUTS in the menu heading. 2. The Outputs panel will list all the outputs installed, sorted by category. To display more detailed information about a particular output, click the corresponding INFO button.
Page 317 4.5 Quality Management Monitoring all outputs of a specific type To monitor all the outputs of a particular category (PPS, for example) sim- ultaneously: 1. Navigate to INTERFACES > OUTPUTS, and click the desired output category (not recessed e.g., Output): 2.
Page 318: Monitoring The Oscillator
4.5 Quality Management To display the settings of an output: 1. Navigate to INTERFACES > OUTPUTS, and click on the desired output (recessed e.g., PPS Output 2. The corresponding Status window will display: Click the Edit button in the bottom-left corner to configure settings that are user- editable.
Page 319 4.5 Quality Management 1. Navigate to MANAGEMENT > OTHER: Disciplining. 2. The Oscillator Management screen will display. It consists of two panels: The Oscillator Status Panel This panel provides comprehensive information on the current status of NetClock's timing state. Oscillator Type: Type of oscillator installed in the unit.
Page 320 4.5 Quality Management this window will vary depending upon the type of oscillator installed and the oscillator adjustment algorithm). Current DAC Setting: Current DAC value, as determined by the oscillator disciplining system. The value is converted into a voltage that is used to dis- cipline the oscillator.
Page 321: Monitoring The Status Of Option Modules
4.5 Quality Management Last Time Reference Change: [Timestamp: Last occurrence] Last 1PPS Reference Change: [Timestamp: Last occurrence] Last TFOM Change: [Timestamp: Last occurrence] Last Sync State Change: [Timestamp: Last occurrence] Last Holdover State Change: [Timestamp: Last occurrence] The Oscillator History Panel The Oscillator History Panel offers real-time graphical monitoring of NetClock’s internal timing.
Page 322 4.5 Quality Management Monitoring ALL Options To monitor all options, or a specific option installed in your NetClock: 1. Navigate to INTERFACES, and click on OPTION CARDS: 2. The resulting screen will display all installed option cards, and their current status.
Page 323: Ntp Status Monitoring
4.5 Quality Management Monitoring a SPECIFIC Option To monitor the status of a selected option: 1. Navigate to INTERFACES > OPTION CARDS, and click on a specific option card, or one of its indented input references, or outputs drop-down menu. 2.
Page 324 4.5 Quality Management 1. To access the NTP Status Summary panel, navigate to MANAGEMENT > NETWORK: NTP Setup. 2. The NTP Status Summary panel is at the lower left of the screen. The panel contains the following information: Selected Ref—The reference NetClock is currently using. Stratum—This is the stratum level at which NetClock is operating.
Page 325 4.5 Quality Management Jitter (ms)—Variance (in milliseconds) occurring in the reference input time (from one poll to the next). Jitter—This is a graphical representation of the system jitter over time. Clicking on this graph in the NTP Status Summary panel will open a window in the main panel containing a larger, more detailed view of the graph.
Page 326 4.5 Quality Management 3. Click the graph in the NTP Status Summary panel. 4. The NTP Performance Graph panel will appear. 5. To select the statistics for a particular day, select a date from the drop- down list in the Select Day for Statistics field. The default date is the present date.
Page 327 4.5 Quality Management 3. Click the graph in the NTP Status Summary panel. 4. The NTP Performance Graph panel will appear (the data may be displayed with a delay). The X-axis represents time, the Y-axis shows the frequency offset in parts-per-million (PPM); e.g. 290 PPM is equivalent to .0290 percent.
Page 328 4.5 Quality Management To view the NTP Jitter performance graph: 1. Navigate to MANAGEMENT > NETWORK: NTP Setup screen. 2. In the NTP Status Summary panel locate the Jitter graph. 3. Click the graph in the NTP Status Summary panel. 4.
Page 329: Temperature Management
4.5 Quality Management To display a higher resolution graph for a shorter time span, move one or both time sliders at the bottom of the graph inwards. 4.5.1.10 Temperature Management NetClock is equipped with one cooling fan, located behind the right-hand side of the front panel, and several hardware temperature sensors, including: board temperature near the CPU...
Page 330 4.5 Quality Management The Web UI Fan Control feature allows you to define a temperature range for the fan to turn OFF and ON. Note: Units produced before Dec. 2015 are not equipped with the Fan Control feature. Does my unit have Fan Control? To find out, navigate to the HOME screen.
Page 331: Temperature Monitoring
4.5 Quality Management 3. Choose between the Settings: Always On [Default]: The fan runs all the time. User Defined: You determine the: Fan Max Temperature: The CPU temperature in °C at which the fan will turn ON. It is advisable to set this temperature no higher than 40°C.
Page 332 4.5 Quality Management The graph for the Oscillator Temperature is displayed under MANAGEMENT > OTHER: Disciplining: CHAPTER • NetClock User Reference Guide Rev. 23...
Page 333 4.5 Quality Management Temperature readings are subject to environmental conditions and hardware con- figuration e.g., oscillator type. Under normal operating conditions, all tem- peratures should remain fairly constant. Drastic changes may indicate e.g., a problem with the fan. Note that the oscillator temperature will have a direct impact on its accuracy, i.e.
Page 334 4.5 Quality Management Under the System tab, you can set Notifications for Minor and Major Alarm- s/Clearances. The temperature readouts used for the Alarms are generated by the CPU temperature sensor. Also, you can set the temperature threshold value for Minor/Major alarms, and define a retry value by determining how many readings (1/min.) the temperature...
Page 335: Further Reading
Should you ever require technical support from Safran, you may be asked for a copy of your logs to facilitate remote diagnosis. Logs stored internally are being kept automatically, while the storage of log files in a remote location has to be set up by the user.
Page 336: Types Of Logs
4.5 Quality Management accumulating over time: Some types of logs will fill up within days, while others can take months until they have reached their maximum storage capacity. You can delete logs at any time, see "Clearing Selected Logs" on page 335.
Page 337 4.5 Quality Management Authentication Log Displays log entries for authentication events (e.g., unsuccessful login attempts, an incorrectly entered password, etc.) that are made to NetClock’s command line interfaces (such as the front panel setup port, telnet, SSH, FTP, etc.). Events Log Displays log entries related to GNSS reception status changes, Sync/Holdover state changes, SNMP traps being sent, etc.
Page 338 4.5 Quality Management Sync: NetClock is synchronized to its Time and 1PPS inputs. Not In Sync: NetClock is not synchronized to its Time and 1PPS inputs and is not currently in Holdover. NTP will indicate to the network that it is Stratum 15 and so the time server likely be ignored as a time reference.
Page 339 4.5 Quality Management GPS Qualification Log If NetClock is connected to a GNSS antenna and is tracking satellites, this log con- tains a running hourly count of the number of GNSS satellites tracked each hour. This history data can be used to determine if a GNSS reception problem exists and whether this is a continuous or intermittent reception issue.
Page 340 4.5 Quality Management E x a m p l e G P S Q u a l i f i c a t i o n L o g E n t r y : 6 = 151 7 = 1894 8 = 480 9 = 534 10 = 433 12 = 108 Q = 3600 In this example, NetClock tracked no less that 6 satellites for the entire hour.
Page 341: Local And Remote Logs
4.5 Quality Management 4.5.2.2 Local and Remote Logs NetClock logs are all stored internally by default. With the exception of the NTP log, all logs can also be configured to be stored externally, if so desired. The log entries for the logs can also be configured to be automatically sent to a Syslog Server for external log storage.
Page 342: Displaying Individual Logs
4.5 Quality Management The Logs panel on the right-hand side provides a logs overview, displaying the status of all NetClock logs. read a log, click the corresponding INFO button. configure a log, click the corresponding PENCIL button. clear a log, click the X-button. Note: Clear File feature does not delete any of the logs that...
Page 343 4.5 Quality Management 1. From the TOOLS drop-down menu, select the desired Logs category (for example, “Alarms”, or “Events”) from the right-hand column. – OR – 1. Access the Logs screen through the MANAGEMENT > OTHER: Log Con- figuration drop-down menu: 2.
Page 344: Saving And Downloading Logs
4.5 Quality Management 3. Click on the INFO button for the desired log category. 4. A short log will be displayed, showing recent entries. Click on the ARROWS icon in the top-right corner to expand to the full Logs view: 4.5.2.5 Saving and Downloading Logs The NetClock Web UI offers a convenient way to save, bundle, and download all...
Page 345 4.5 Quality Management By default, the log file will be saved in your local Downloads folder under the name netclock.log. The file is compressed; extract the .csv file using a standard decompression tool. 3. If so asked by Spectracom Technical Support, attach the bundled log files (typically together with the oscillator status log, see: "Saving and Down- loading the Oscillator Log"...
Page 346: Configuring Logs
4.5 Quality Management 4.5.2.6 Configuring Logs Note: NTP log has no available configuration options. To configure a log: 1. Navigate to MANAGEMENT > OTHER: Log Configuration. 2. In the Logs panel select the log category you wish to configure e.g., System, then click the PENCIL button next to it.
Page 347 4.5 Quality Management Note: Clicking the Delete button in the Log File configuration window does NOT remove the remote log server from the net- work. In this instance it merely deselects the server as that par- ticular log’s remote log server. If the log does not have a remote log server assigned, there will be a drop- down list of server choices.
Page 348: Setting Up A Remote Log Server
4.5 Quality Management Changing either or both of these values from the factory default values will alter which log the entries are sent to inside NetClock. The table below indicates which Log Tab the log entries will be sent to (by default), based on the configuration of these two values.
Page 349 4.5 Quality Management 2. In the Remote Log Server panel, click on the PLUS icon in the top-right corner of the panel. The Add Remote Log Servers window displays. 3. Enter the IP address or host server name (e.g., “MyDomain.com”) you want to use as a remote log server.
Page 350: Restoring Log Configurations
4.5 Quality Management 3. Choose the MINUS button to delete the remote log server. Confirm by click- ing OK in the message window. —OR— 3. In the Remote Log Server panel, click the GEAR button to change the remote log server. Type in a new IP address or host domain server (e.g., MyDomain.com).
Page 351: Clearing All Logs
4.5 Quality Management 4.5.2.9 Clearing All Logs Note: Authentication logs and NTP logs cannot be cleared. All local logs in the home/spectracom directory will be logged. Other logs e.g., located on Syslog Servers, must be maintained by the user. To clear all locally stored log files: 1.
Page 352: Updates And Licenses
Software Update Instructions doc- uments, which can be found under the above-mentioned link. The terms update and upgrade are both used throughout Safran technical literature, as software releases may include fixes and enhancements, as well as new features. CHAPTER •...
Page 353 4.6 Updates and Licenses 1. In the Web UI, under Tools > Upgrade/Backup, determine the System soft- ware version and the type of GNSS receiver. Proceed if your existing soft- ware is V5.1.5 or higher, AND you have a RES-SMT GG receiver. (Otherwise, consult the above-mentioned instructions for updating NetC- lock software.) 2.
Page 354: Applying A License File
If, however, a feature is to be activated after delivery of the NetClock unit, please contact your local Safran Sales Office first to have a license file generated. License files are archive files with a tar.gz exten- sion.
Page 355: Resetting The Unit To Factory Configuration
4.7 Resetting the Unit to Factory Configuration 3. In the Actions panel, click Apply License File. 4. In the Apply License File window, click Upload New File. 5. In the Upload File window, click Choose File. Using the Explorer window, navigate to the location mentioned under the first step, select the license file, and monitor the installation progress in the Status Upgrade...
Page 356: Resetting All Configurations To Their Factory Defaults
4.7 Resetting the Unit to Factory Configuration Caution: It is not possible to clear the Authentication logs and NTP logs. Note: Restoring configurations (reloading a saved configuration), erasing the stored GNSS location and clearing the log files are sep- arate processes. You may restore one without restoring the others. If NetClock was assigned a static IP address before cleaning the configurations, it will be reset to DHCP after the clean has been performed.
Page 357: Backing-Up And Restoring Configuration Files
4.7 Resetting the Unit to Factory Configuration so the position can be recalculated and locked-in. A GNSS survey typically takes up to 33 minutes. 4.7.2 Backing-up and Restoring Configuration Files Once NetClock has been configured, it may be desired to back up the con- figuration files to a PC for off-unit storage.
Page 358 4.7 Resetting the Unit to Factory Configuration 1. Navigate to TOOLS > SYSTEM: Upgrade/Backup. 2. The System Configuration screen will display: The System Configuration screen consists of 6 panels: The Actions panel The Actions panel is used for updating the system software, managing license files, saving and restoring the configuration files, and restoring the factory defaults.
Page 359 4.7 Resetting the Unit to Factory Configuration GNSS Receiver—The GNSS receiver in use with this unit. HW Slots 1–6—The Option Cards installed in this unit. Option—The optional features also included on this unit. The Upgrade Log panel The upgrade log is a running log of system upgrades, used for historical and troubleshooting purposes.
Page 360: Saving The System Configuration Files
4.7 Resetting the Unit to Factory Configuration 4.7.2.2 Saving the System Configuration Files To save (back up) the system configuration files: 1. Navigate to TOOLS > SYSTEM: Upgrade/Backup. 2. In the Actions panel, click the Save Configuration button. 3. Click in the grey confirmation window that displays. 4.
Page 361: Restoring The System Configuration
4.7 Resetting the Unit to Factory Configuration 3. Click Choose File in the window that displays, and navigate to the directory on your PC where the bundled file is stored. 4. Click the Upload button. NetClock saves the uploaded bundled file in the /home/spectracom/xfer/config/directory.
Page 362: Restoring The Factory Defaults
4.7 Resetting the Unit to Factory Configuration 3. Click in the grey confirmation window. The system will restore the con- figuration using the bundled file stored at /home/spec- tracom/xfer/config/NetClock.conf, then reboot in order to read the new configuration file. Once powered back up, NetClock will be configured with the previously stored file.
Page 363: Default And Recommended Configurations
4.7 Resetting the Unit to Factory Configuration 3. NetClock restores the configuration files to their factory default, and halts the system. 4.7.4 Default and Recommended Configurations The factory default configuration settings were chosen for ease of initial setup. However, some of the default settings may deviate from best practices recom- mendations.
Page 364: Sanitizing The Unit
Web UI SFTP Available Enabled Web UI * Safran recommends that secure clients use only SNMPv3 with authentication for secure installations. 4.7.5 Sanitizing the Unit The concept of sanitizing a NetClock unit refers to erasing usage data that may be stored in volatile and/or non-volatile memory, i.e. permanently eliminating any data that could be used to trace the unit's former usage.
Page 365: Cleaning/Restoring
4.7 Resetting the Unit to Factory Configuration 3. Locate the card socket on the main PCB. 4. Remove the metal bar that holds the card in the socket. 4.7.5.2 Cleaning/Restoring Starting in system software version 4.8.7 (see under TOOLS > SYSTEM: Upgrade/Backup), the Compact Flash card can be modified in several different ways via Actions panel under TOOLS >...
Page 366: Further Reading
4.7.5.4 Further Reading For more information on sanitization, see: "Deleting the GNSS Receiver Position" on page 214. Contact Safran Technical Support (see "Technical Support" on page 467). CHAPTER • NetClock User Reference Guide Rev. 23...
Page 367: Appendix
APPENDIX Appendix The following topics are included in this Chapter: 5.1 Troubleshooting 5.2 Option Modules 5.3 Command-Line Interface 5.4 Time Code Data Formats 5.5 IRIG Standards and Specifications 5.6 Technical Support 5.7 Return Shipments 5.8 List of Tables 5.9 List of Images 5.10 Document Revision History •...
Page 368: Troubleshooting
APPENDIX Troubleshooting The front panel LEDs and the Web UI provide NetClock status information that can be used to help troubleshoot failure symptoms that may occur. 5.1.1 Troubleshooting Using the Status LEDs The front panel Status LEDs can provide “local” status information about NetC- lock.
Page 369: Minor And Major Alarms
APPENDIX Current Indication Troubleshooting Status Time Sync alarm: NetClock Note: If NetClock was just recently Sync LED is was just powered-up and powered-up or rebooted and input ref- has not yet synced to its ref- erences are applied, no troubleshooting erences.
Page 370: Troubleshooting: System Configuration
Troubleshooting: System Configuration One of the first tasks when troubleshooting a unit is to read out the current sys- tem configuration (you may also be asked for this when contacting Safran Tech- nical Support.) Select TOOLS > Upgrade/Backup: The screen displayed will provide information...
Page 371: System Troubleshooting: Browser Support
Recent log entries. 5.1.3.1 System Troubleshooting: Browser Support Safran recommends using one of the following Web browsers to run the NetC- lockWeb UI: Firefox 27, Chrome 31, Edge, IE 11 on Windows 7, Opera 20, and Safari 9 Using different or older browsers may lead to some incompatibility issues.
Page 372: Troubleshooting Via Web Ui Status Page
APPENDIX Verify Current Status Indication Troubleshooting NetClock ICMP LEDs on Green “Good 1) Verify one end of standard network cable is connected to NetClock ’s Ethernet network link” is not solid test is failing. NetClock is not connector green port and other end is connected to a connected to PC hub/switch.
Page 373 APPENDIX Table 5-3: Troubleshooting using the Web UI Status indications Web UI Page loc- Current Status Indication Troubleshooting ation NetClock is in HOME page, Sys- SYNC indicator is not All available Input References “lit” (not Green).HOLD Holdover have been lost. The Reference tem Status panel, indicator is “lit”...
Page 374 APPENDIX Web UI Page loc- Current Status Indication Troubleshooting ation Note: If NetClock was just MANAGEMENT/ Stratum 15 NTP is not syn- chronized to recently powered-up or NTP Setup page its available rebooted and input references NTP Status Sum- input ref- are applied, no troubleshooting erences ( NetC- mary panel...
Page 375: Troubleshooting Gnss Reception
For additional information on troubleshooting GNSS reception issues with NetC- lock, please refer to the GNSS Reception Troubleshooting Guide, available here on the Safran website. 5.1.7 Troubleshooting – Keypad Is Locked The NetClock 9483 front panel keypad can be locked in order to prevent inad- vertent operation.
Page 376: Troubleshooting - 1Pps, 10 Mhz Outputs
APPENDIX To unlock the front panel keypad, using the keypad (locally), perform the following key sequence: To unlock the front panel keypad, using the Web UI (remotely): 1. Open the NetClock Web UI, and navigate to MANAGEMENT > OTHER: Front Panel.
Page 377: Troubleshooting - Blank Information Display
APPENDIX Web UI Page Current Status Indication Troubleshooting Navigate to Select the PPS Signature Con- 1. With "Output Always Output trol will show Enabled" selected, the selected INTERFACES/OUTPUTS/ screen. See "Output output will be present no mat- PPS Output page "The Out- Always ter the current synchronization...
Page 378: Troubleshooting The Front Panel Serial Port
APPENDIX Note: The information that is selected, is the page that is normally displayed in the LCD window, beginning one minute after the keypad is no longer being used. Using the front panel keypad to change the information normally dis- played in the LCD when the keypad is not in use: To use the front panel keypad to reconfigure the LCD Information Display to show something other than a blank page (such as GNSS information, net-...
Page 379: Troubleshooting The Front Panel Cooling Fan
5.1.12 Troubleshooting the Internal Battery The Safran NetClock time and frequency synchronization system contains a Lith- ium Battery for the purpose of providing power to the real time clock on the pro- cessor board. This battery is not essential to operation, but keeps the time and date for the system BIOS when the SecureSync is powered down.
Page 380 APPENDIX Note: The specific type of battery required for replacement is a BR3032 lithium coin-cell (3V DC - 500mAh). This battery type should be available via a local or online electronics retailer. When replacing the battery, the BIOS clock power will be temporarily interrupted and the BIOS clock will stop counting.
Page 381: Troubleshooting - Network Pcs Cannot Sync
2. The network clients have to be configured to synchronize to NetClock's address. For additional information on syncing Windows PC's, see https://safran-navigation-timing.com/document/synchronizing-windows- computers/. The last section of this document also contains troubleshoot- ing assistance for Windows synchronization. For UNIX/Linux computer syn- chronization, please visit http://www.ntp.org/.
Page 382: Option Modules
APPENDIX Should this happen repeatedly, you can transfer the update file using a file transfer protocol such as scp, sftp or ftp, if security is not a concern. The update can then be initiated from the Web UI or Command Line. Disk Status: In the event of an aborted update process, under Tools...
Page 383: Netclock 9483 Option Modules
APPENDIX 5.2.1 NetClock 9483 Option Modules Spectracom offers several configurations for the NetClock 9483. This section con- tains technical details and specifications for option modules that may have been selected at the time of purchase, and information regarding configuration and usage that can be used after installation.
Page 384: 1Pps Output
APPENDIX 5.2.2.1 1PPS Output The NetClock 9489 1PPS Output is identical to the NetClock 9483. See "1PPS Out- put" on page 23. 5.2.2.2 ASCII Time Code RS-485 Outputs and Input NetClock 9489 provides two (2) ASCII RS-485 outputs, and one (1) ASCII RS-485 input.
Page 385 APPENDIX Format Group: Determines the time code message format category. Choices are: Auto Spectracom NMEA ICD-153 EndRun Format: Once a Format Group has been selected, one or more Format fields may appear, allowing you to select one or more time code Formats. Note: If Auto is chosen as the format group, the format will auto- matically be Auto-detect.
Page 386 APPENDIX Zone and DST rules, as configured in the Local Clock will be applied to the front panel time display. See for more information on Local Clocks. Note: The Timescale of the ASCII input (as configured in the ASCII time source) must be set correctly, especially if other input references are enabled.
Page 387 APPENDIX Format 2: Selects the second consecutive format message to be out- putted. Select “None” if only one output format is desired. “None” will be the only choice available if Format 1 is “None.” Format 3: Selects the third consecutive format message to be out- putted.
Page 388: Pin Layout
APPENDIX to the front panel time display. See for more information on Local Clocks. Baud Rate: Determines the speed at which the output port will operate. Data Bits: Defines the number of Data Bits for the output port. Parity: Configures the parity checking of the output port. Stop Bits: Defines the number of Stop Bits for the output.
Page 389: Web Ui Navigation: Option Modules
APPENDIX 5.2.3.1 Web UI Navigation: Option Modules Figure 5-2: Option module navigation To view or edit option module settings in the NetClock Web UI (see also image above): Status Summary panel Under INTERFACES > OPTION CARDS, clicking the superordinate list entry will open the Status Summary panel, which provides a status overview, as...
Page 390: Edit Window
APPENDIX Edit window To edit option module settings, either click the Edit button in the lower-left corner of the Status window, or click the GEAR button in the Status Sum- mary panel: The Edit window will open. 5.2.3.2 Viewing Input/Output Configuration Settings The configurable settings of any NetClock input or output interface can be viewed in its Status window.
Page 391 APPENDIX 4. If you want to change any of the settings shown in the Status window, click Edit button in the bottom-left corner. The Edit window will open: 5. Information about the configurable settings can be found in the cor- responding option module section, see "NetClock 9483—Available Option Modules"...
Page 392: Configuring Option Module Inputs/Outputs
APPENDIX 5.2.3.3 Configuring Option Module Inputs/Outputs The configurable settings of any NetClock input or output interface are access- ible through the Edit window of the option module to which the input or output belongs. The Edit window can be accessed in several ways; the procedure below describes the standard way: 1.
Page 393: Viewing An Input/Output Signal State
APPENDIX 4. Information about the configurable settings can be found in the cor- responding option module section, see "NetClock 9483—Available Option Modules" on page 14, or "NetClock 9489 In-/Outputs" on page 367. 5.2.3.4 Viewing an Input/Output Signal State To view if an input or output is currently enabled or disabled, go to the option module’s Status Summary panel: 1.
Page 394: Verifying The Validity Of An Input Signal
APPENDIX 2. Navigate to the INTERFACES > OPTION CARDS drop-down menu, and click the list entry of the option module identified above. The option mod- ule’s Status Summary panel opens: All the inputs and/or outputs of this option module are listed in the Status Sum- mary panel.
Page 395: Nena-Compliant Module
APPENDIX If an INPUT is present, or not valid, and qualified, the 1PPS Validity and Time Validity fields will be “Not Valid” (orange). If an INPUT is present, and the signal is considered valid, and qualified, the two indicators will then turn “Valid” (Green). 5.2.4 NENA-Compliant Module NetClock 9483 is equipped with a NENA-compliant module which provides:...
Page 396: Nena-Compliant Module: Specifications
APPENDIX 5.2.4.1 NENA-Compliant Module: Specifications Outputs: (1) IRIG B/E, IEEE (1) ASCII RS-232 (1) ASCII RS-485 (2) 1344/C37.118-2005 Relay/Alarm (AM/TTL) Connectors: BNC (J1) DB9F (J2) 3.81 mm Terminal block (J3) Accuracy: ±20 to ±200 μs of ±100-1000 μs ±100-1000 μs Switch time UTC, format-depend- (format-depend- (format-depend- 4ms, max.
Page 397: Ascii Rs-232 Specifications
APPENDIX Modulation Ratio: 3.3:1 nominal DCLS IRIG Output: Signal Level: 0V to 4.3 V (TTL compatible) into 50 Ω Output impedance of buffer is ~7 to 10 Ω 5.2.4.3 ASCII RS-232 Specifications Outputs ±5V minimum, ±5.4 V typical Signal Type and Connector RS-232 DB-9F RS-232 Input: -25 V...
Page 398: Pin Assignments
APPENDIX Pin Assignments Figure 5-4: DB-9 connector "J2" Pin No. Signal Name Function Top row of 5 pins PPS_OUT 1PPS output SERIAL_OUT_TX RS-232 Transmit data SERIAL_OUT_RX RS-232 Receive data No connection Ground Bottom row of 4 pins No connection No connection No connection No connection Table 5-8:...
Page 399 APPENDIX RS-485 Differential Output: +1.65 V Typical Common Mode Output Voltage 2V min Differential Output Voltage Swing with 100 Ω load, 3.3 V Differential Output Voltage Swing, No Load, with ESD pro- tection Pin Assignments Figure 5-5: RS-485 connector "J3" Connector Signal Direction...
Page 400: Configuring The Irig Time Code Output
APPENDIX Table 5-9: Relay/RS-485 outputs pin assignments Note: The last device on each of the RS-485 remote output should be terminated into 120 Ω. Auxiliary Spectracom equipment (such as wall display clocks) include a 120 Ω resistor for termination. 5.2.4.5 Configuring the IRIG Time Code Output Via INTERFACES > OUTPUTS [or: INTERFACES > OPTION CARDS], navigate to IRIG Output 0.
Page 401 APPENDIX The IRIG output Edit window offers the following configuration fields: Signature Control: Used to control when the IRIG modulation will be present. This function allows the modulation to stop under certain conditions; see also "Signature Control" on page 151. Format: Defines the desired IRIG output formatting. Available options include: IRIG A, B, G, NASA-36, IRIG E (100 Hz or 1kHz) Modulation: Changes the type of output signal modulation: IRIG AM...
Page 402 APPENDIX incoming data stream to UTC time for use by the System Time. The avail- able choices are: UTC: Coordinated Universal Time ("temps universel coordonné"), also referred to as ZULU time TAI: Temps Atomique International GPS: The raw GPS time as transmitted by the GNSS satellites (as of July, 2015, this is 17 seconds ahead of UTC) local clock set up through the Time Management Page: This option...
Page 403: Configuring An Ascii Time Code Output (Rs-232 Or Rs-485)
APPENDIX 5.2.4.6 Configuring an ASCII Time Code Output (RS-232 or RS-485) Note: The process of configuring the ASCII Time Code output is inde- pendent of the communications protocol. Via INTERFACES > OUTPUTS [or: INTERFACES > OPTION CARDS], navigate to the ASCII Output you want to configure. Depending on which path you take, you will need to click the GEAR button, or Edit button in order to open the Edit win- dow: Note:...
Page 404 APPENDIX Format Group: Determines the time code message format category (see also "Time Code Data Formats" on page 421). Choices are: None NENA-Spectracom (Formats 0, 1, 2, 3, 4, 7, 8, 9, 1S) NMEA (GGA, RMC, ZDA message) (Formats 1, 2, 3 PSTN, 4, 5 RMC) ICD-153 (Buffer Box, Time Transfer, Current Status) EndRun...
Page 405 APPENDIX Request (On-time): A format message is generated in sync with 1PPS after the configured request character has been received. Request (Immediate): A format message is generated as soon as the request character is received. As this selection does not correlate the output data to the on-time point for the message, in Data Formats that do not provide sub-second information (such as Formats 0 and 1 whereas Format 2 provides sub-second information), it should be...
Page 406: Configuring The Relay/Alarm Output
APPENDIX Failure to configure the Timescale of the ASCII input correctly could result in time jumps occurring in the System Time when input reference changes occur. These time jumps could affect NTP and normal operation of the system. Baud Rate: Determines the speed that the output port will operate at. Data Bits: Defines the number of data bits for the output port.
Page 407: Gigabit Ethernet Module [Option 16]
APPENDIX 2. The Alarm Type options displayed/to choose from are: None: Will not output for an alarm. Minor: Will output on a minor alarm. Major: Will output on a major alarm. 5.2.5 Gigabit Ethernet Module [Option 16] This option module provides NetClock with three 10/100/1000 Base-T network interfaces, in addition to the standard 10/100 Base-T network interface.
Page 408: Routing Tables
APPENDIX Eth0 is the built-in NetClock Ethernet port. Eth1 through eth3 are the ports provided by the 1204-06 card. To learn more about Ethernet setup, see "Configure Network Settings" on page 59. 5.2.5.3 Routing Tables There are five (5) routing tables in the system: one for each network interface, and one main routing table.
Page 409: Configuring Ethernet Ports
APPENDIX For information on configuring routing tables see "Static Routes" on page 67, and see the Safran Tech Note Routing of data across multiple networks. Domains and Domain Name Servers (DNS) Each network interface may exist on a separate domain and therefore have a dif- ferent domain name and domain name servers from the other interfaces.
Page 410 APPENDIX mode: 1.544 MHz (square wave) frequency output (2) 1.544 Mb/sec data rate outputs: Outputs are DS1 framed all ones Supports Super Frame (SF or D4) and Extended Super Frame (ESF) SSM support mode: 2.048 MHz (square wave) frequency output (2) 2.048 Mb/sec data rate outputs: Outputs are E1 frame all ones Supports CRC4 and CAS Multiframe...
Page 411: Model 1204-53 E1/T1 (75 Ω): Specifications
APPENDIX Table 5-10: Option 13 pin assignments Pin Assignments Pin No. Signal Function Description Ground Ground 1.544MHz/2.048MHz RS-485 A Terminal Square wave 1.544MHz/2.048MHz RS-485 B Terminal Square wave Ground Ground T1/E1 output A1 GR-499/G.703 T1/E1 output B1 GR-499/G.703 Ring Ground Ground T1/E1 output A2 GR-499/G.703...
Page 412: E1/T1 Output: Edit Window
APPENDIX Pin Assignments Pin No. Signal Function Description Ground Ground 5.2.6.3 E1/T1 Output: Edit Window To configure an E1/T1 data output , navigate to its Edit window. For instructions, see: "Configuring Option Module Inputs/Outputs" on page 376. The Edit window allows the configuration of the following settings (visible fields will change depending on selections in this window): Signature Control: Controls when the output will be present.
Page 413: E1/T1 Output: Status Window
APPENDIX Framing: This option selects the framing standard (D4/Superframe, Extended Superframe [CRC-6/no CR C-6], or AIS). Encoding: This option selects the encoding method (B8ZS or AMI). T1SSM Value: This option selects the SSM quality level transmitted when SSM is enabled. E1 SSM Value: This option selects the SSM quality level transmitted when SSM is enabled.
Page 414: Ptp Grandmaster
APPENDIX Encoding: HDB3 only. Framing: This option selects the framing standard (CRC-4, No CRC-4, or AIS). Framing: This option selects the framing standard (D4/Superframe, Extended Superframe [CRC-6/no CR C-6], or AIS). Encoding: This option selects the encoding method (B8ZS or AMI). T1 SSM Value: This option selects the SSM quality level transmitted when SSM is enabled.
Page 415: Ptp Grandmaster [-32]: Edit Window
Bel Fuse SFP-1GBT-05 CISCO MGBSX1 CISCO GLC-T Finisair FTLF1318P3BTL Finisair FTRJ8519P1BNL Finisair FTLF8519P3BNL Finisar FCLF8522P2BTL (available from Safran as SFP-COPPER) Omitron 7206-0 Optorate S.1312.10.D Proline SFP-TX-CDW 5.2.7.2 PTP Grandmaster [-32]: Edit Window 1. To configure this option card, go to its Edit window.
Page 416 APPENDIX Note: If you have only one input or output of any type, NetC- lock will number that input or output 0. Additional inputs or outputs will be numbered 1 or above. 2. The Gb PTP Edit window will display. It includes the panel, and offers access to three different tabs, described below: Top panel settings...
Page 417: Main Tab Settings
APPENDIX Main tab settings Domain Number: Sets the current PTP Domain Number, as defined in IEEE Std 1588-2008 Section 7.1 Clock Mode: PTP has two ways to transmit the initial T1 timestamp of the Sync packet transmission from the Master to the Slave: One-Step Master: The Sync packet is timestamped, then the timestamp is inserted into the Sync packet in real-time, as it is trans-...
Page 418: Advanced Tab Settings
APPENDIX [Default settings in parenthesis] Min Sync Interval: The minimum value of Sync interval granted by the Master Clock. In packets per second. [128 Per Second] Max Sync Duration: The maximum value of Sync interval granted by the Master Clock. In seconds. [10000] Min Announce Interval: The minimum value of the Announce interval gran- ted by the Master Clock.
Page 419 APPENDIX _______________ • Minicast/Hybrid Mode : The Minicast/Hybrid mode is a method to minimize the PTP packets payload on the network, where: The transmissions initiated by the Master (Announce, Sync/Follow-Up) run in Multicast mode. The transmissions initiated by the Slaves (Delay_Req/Delay_Resp) run in Unicast mode.
Page 420 APPENDIX Clock Class Set: Parameter broadcast in a PTP profile, indicating the quality of the attached reference; PTP [default], ARB, ITU [Telecom ]. See also "ESMC Signal Control" below. Time To Live (Packet Lifespan): Sets the TTL field for PTP packets except for Peer-to-Peer packets for which TTL is forced to 1 as specified in IEEE Std 1588-2008 Annex D.3.
Page 421: Ptp Grandmaster [-32]: Status Window
APPENDIX Output Enabled in Holdover: The output uses the selec- ted SSM code unless NetClock is not synchronized to its references (the output is present while in the Holdover mode). While NetClock is not synchronized, QL-DNU SSM code will be broadcast. Output Disabled in Holdover: The output uses the selec- ted SSM code unless the NetClock references are con-...
Page 422 APPENDIX Green=Connected. The speed of the connection is indicated. Orange=Not connected. Port State: Reports the current state of the PTP State Machine: Disabled: PTP Ethernet port is Disabled. See PTP Setup/Network page, PTP Network Settings options. Initializing: Ethernet link is unplugged/PTP Module is in power-up state.
Page 423: Clock Quality
APPENDIX Advanced tab: Status information Time Properties: Offset: The Master’s current offset between UTC time and TAI time. Units: seconds. UTC Offset Valid: Indicates whether or not the Master’s UTC Offset is valid. Leap Second: The Leap second correction as set on the Time Management page.
Page 424: Ethernet Status
APPENDIX Arbitrary Time Clock Class Definition Time Scale Scale Time and 1pps references are in holdover state, within specifications and PTP clock shall not be a slave to another clock in the domain. Time and 1pps references are in holdover state, not within specifications, and PTP clock shall not be a slave to another clock in the domain.
Page 425 APPENDIX rent time and synchronization references from NetClock to syn- chronize with it. Listening: PTP module is looking for a Master Clock. Master: PTP Master has become the active Master Clock on the net- work. Passive: PTP Module has become a Passive Master Clock. (There is another Master Clock on the network with better quality or higher pri- ority).
Page 426: Module Information
APPENDIX Note: Peer-to-Peer Delay Mechanism is only applic- able on networks equipped with Transparent Clocks (switches/routers IEEE 1588 compatible). Peer-to-Peer Delay Mechanism is not supported in Unicast transmission mode. Offset: See "Advanced tab settings" on page 402. Module Information Software Version: Version number of embedded software Hardware Version: Version number 5.2.7.4...
Page 427: Configuration - Ptp-Specific Steps
APPENDIX 5.2.7.5 Configuration — PTP-Specific Steps Confirm that: The PTP Port Activity is enabled (check the Port Status on the PTP Status page under the Advanced tab). If not, enable it from the Port Activity of the PTP Setup/Network page). The clock is set to be a Master-Only clock (check the Clock Mode on the...
Page 428: Configuring Multicast Mode
APPENDIX d. If there are multiple multicast Master Clocks on the network, the PTP Mod- ule uses the Best Master Clock (BMC) algorithm specified in the PTP Spe- cification to decide whether or not to become the active Master Clock. The BMC algorithm selects the Best Master Clock on the network from the fol- lowing criteria: i.
Page 429 APPENDIX 1. In the GB PTP Edit window, navigate to the Advanced tab. 2. Confirm that Unicast Sync is checked. The 1204-32 PTP module should always respond to unicast negotiations. Configuring Minicast/Hybrid Mode To enter the Minicast/Hybrid mode, perform the following steps: 1.
Page 430: Command-Line Interface
APPENDIX the format “#.#.#.#” with no leading zeroes or spaces, where each ‘#’ is a decimal integer from the range [0,255]. Tip: VLAN encapsulation is not officially supported on the 1204-32 card and may cause error. Configuring PTP Contracts 1. Navigate to the Contract tab of the GB PTP...
Page 431: Setting Up A Terminal Emulator
UI can be used. While it is also possible to retrieve selected logs, a terminal emu- lator does not replace the NetClock Web UI. Safran does not distribute or support its own terminal emulator, and newer Microsoft operating systems no longer include HyperTerminal. However, there ®...
Page 432: Cli Commands
APPENDIX 2. Configure your terminal emulation program, using the following settings: Port: COM(#) Bits per second: 9600 Data bits: 8 Parity: None Stop bits: 1 Flow control: None 3. Depending on which network protocol you are using (SSH, Telnet), you will need to enter authentication upon establishment of the connection either in a separate authentication window, or the Terminal window: The default user name is spadmin, and the password admin123.
Page 433 Displays current date (for example, 15 APR 2015) dateset Used to set the current date Used to create a new Safran self-signed SSL certificate for HTTPS in case of defcert expiration of the original certificate dhcp4get Displays whether DHCP is enabled...
Page 434 APPENDIX Command Description dns4set Used to configure the DNS servers doyget Used to obtain the current Day of Year doyset Used to set the current Day of Year gettemp Displays the temperature of the oscillator, board, or CPU gpsdop Displays GNSS receiver positional accuracy estimates Applicable to SAASM-equipped NetClock units only gpsinfo gpsloc...
Page 435 APPENDIX Command Description list Outputs a list of commands loadconf Restore a saved configuration and reboot localget Used to obtain the configured local clock localget Used to obtain the local clock applied to the front panel locallist Used to display local clocks localset Used to configure local clocks manifest...
Page 436 APPENDIX Command Description radius server <id> Deletes radius server number <id> reboot Used to warm-boot the unit without having to disconnect or reconnect power reftable Displays reference priority table renew4 Used with DHCP to renew the assigned IPv4 address renew6 Used with DHCPv6 to renew the assigned IPv6 address resetpw Resets the administrator account (spadmin) password back to the default...
Page 437: Time Code Data Formats
APPENDIX Command Description stateset Enable or disable an entry in the reference priority table. index = 0...15. state = 0 (disable), 1 (enable) status Displays information about the oscillator disciplining swupgrade Performs system upgrade using the update bundle provided syncstate Display timing system synchronization state sysupgrade Performs system upgrade using the update bundle provided...
Page 438 APPENDIX E x a m p l e m e s s a g e : $GPGGA,123519.00,4807.038,N,01131.000,E,1,08,0.9,545.4,M,-164.0,M,,,,*47 Note: Not all fields below are available on all products in all applic- ations. NOTE: The GGA format does not support precision timing and 1PPS functionality; the Web UI may permit the selection of Message or PPS Pin as PPS Source, but the NMEA GGA Message will not use either.
Page 439: Nmea Rmc Message
APPENDIX 5.4.2 NMEA RMC Message NMEA Message Format RMC, (Recommended Minimum) provides fix inform- ation, speed over ground and Magnetic Variance information. E x a m p l e m e s s a g e : $GPRMC,123519.00,A,4807.038,N,01131.000,E,,,230394,,,A*6A Where: Recommended Minimum Sentence C 123519.00 Fix taken at 12:35:19 UTC Status A=active or V=Void.
Page 440: Spectracom Format 0
APPENDIX HHMMSS.00 HrMinSec(UTC) DD,MM,YYYY Day, Month, Year Local zone hours -13…13 Local zone minutes 0…59 Checksum 5.4.4 Spectracom Format 0 Format 0 is the universal NENA format, along with formats 1, 2, and 3. Format 0 includes a time synchronization status character, day of year, time reflecting Time Zone Offset and DST corrections when enabled.
Page 441 APPENDIX The leading edge of the first character (CR) marks the on-time point of the data stream. The time synchronization status character (I) is defined as described below: When the receiver is unable to track any satellites and the time synchronization lamp is red.
Page 442 APPENDIX If your device requires the two digit day of the month for days 1 through 9 (i.e. 01, 02 etc.), select Format 1. If your device requires the single digit day of the month for days 1 through 9 (i.e.
Page 443: Spectracom Format 1S
APPENDIX E x a m p l e : FRI 20APR01 12:45:36 The example data stream provides the following information: Sync The clock is not time synchronized to GNSS. Time is derived from the battery Status backed clock or set manually Date Friday, April 23, 2015 Time...
Page 444: Spectracom Format 2
APPENDIX Day of Week (SUN, MON, TUE, WED, THU, FRI, SAT) Numerical Day of Month (1-31) Month (JAN, FEB, MAR, APR, MAY, JUN, JUL, AUG, SEP, OCT, NOV, DEC) Year without century (99, 00, 01, etc.) Hours (00-23) Colon separator Minutes (00-59) Seconds (00-60) The leading edge of the first character (CR) marks the on-time point of the data...
Page 445 APPENDIX Note: Format 2 cannot be configured for a Time Zone Offset or with automatic Daylight Saving Time adjustment. Attempting to con- figure a Local clock using Data Format 2 with either a Time Zone Off- set or automatic DST rule will result in an error message. E x a m p l e m e s s a g e : CR LF IQYY ^ DDD ^ HH:MM:SS.SSS ^ LD Where:...
Page 446 APPENDIX When the receiver is unable to track any satellites and the time synchronization lamp is red. When the receiver time is derived from the battery backed clock or set manually through the Setup Port Interface. The quality indicator (Q) provides an inaccuracy estimate of the output data stream.
Page 447: Spectracom Format 3
APPENDIX Sync The clock has lost GNSS time sync. The inaccuracy code of “A” indicates the expec- Status ted time error is <10 milliseconds. Date Day 271 of year 2015. Time 12:45:36 UTC time, Standard time is in effect. 5.4.8 Spectracom Format 3 Format 3 provides a format identifier, time synchronization status character, year, month, day, time with time zone and DST corrections, time difference from...
Page 448: Spectracom Format 4
APPENDIX The time synchronization status character (I) is defined as described below: When the receiver is unable to track any satellites and the time synchronization lamp is red. When the receiver time is derived from the battery backed clock or set manually through the Setup Port Interface.
Page 449 APPENDIX leap second indicator. Format 4 data structure is shown below: E x a m p l e : FFFFIMJDXX^HHMMSS.SSSS^L CR LF Where: FFFF Format Identifier (0004) Time Sync Status (Space, ?, *) MJDXX Modified Julian Date Space separator Hours (00-23 UTC time) Minutes (00-59) SS.SSSS Seconds (00.0000-60.0000)
Page 450: Spectracom Format 7
APPENDIX Data format Sync Status Time synchronized to GNSS. Modified Julian Date 50085 Time 12:45:36.1942 UTC Leap Second A leap second is scheduled at the end of the month. 5.4.10 Spectracom Format 7 This format provides a time data stream with millisecond resolution. The Format 7 data stream consists of indicators for time synchronization status, leap second and Daylight Saving Time.
Page 451 APPENDIX Seconds (00-60) Decimal Separator Milliseconds (000-999) Leap Second Indicator (space, L) Daylight Saving Time Indicator (S,I,D,O) The leading edge of the first character (CR) marks the on-time point of the data stream. The time synchronization status character (I) is defined as described below: When the receiver is unable to track any satellites and the time synchronization lamp is red.
Page 452: Spectracom Format 8
APPENDIX 5.4.11 Spectracom Format 8 Format 8 includes a time synchronization status character, the four digit year, day of year, time reflecting Time Zone Offset and DST corrections when enabled. Format 8 also includes the DST/Standard Time indicator, and the Time Zone Off- set value.
Page 453: Spectracom Format 9
APPENDIX 5.4.12 Spectracom Format 9 Format 9 provides Day-of-Year and Time information. E x a m p l e m e s s a g e : <SOH>DDD:HH:MM:SSQ<CR><LF> Where: Start of header (ASCII Character 1) Day of Year (001-366) Colon Separator Hours (00-23) Minutes (00-59) Seconds (00-59) (00-60 for leap second)
Page 454: Spectracom Epsilon Formats
APPENDIX FL_SYNC_SYS_REF_NONE ('X') Never been in sync FL_SYNC_SYS_REF_YES (' ') In sync with a reference FL_SYNC_SYS_REF_LOST ('F') Out of sync, lost reference 5.4.13 Spectracom Epsilon Formats 5.4.13.1 Spectracom Epsilon TOD 1 This message corresponds to the TOD 1 format provided by EPSILON 2S/3S Ser- ies products on RS232/422 ports.
Page 455: Bbc Message Formats
APPENDIX 5.4.13.2 Spectracom Epsilon TOD 3 This message corresponds to the TOD 3 format provided by EPSILON 2S/3S Ser- ies products on RS232/422 ports. The structure of this format is as follows: <space>DOY/YYYY<space>HH:MM:SS<space>T(CR)(LF) Length=22 bytes Where: <space> separator 3-digit Day of year </>...
Page 456: Format Bbc-02
APPENDIX Number of characters: 24 (including CRLF and '.') E x a m p l e m e s s a g e : T:ye:mo:da:dw:ho:mi:sc Where: Indicates the synchronous moment for the time setting. Year (00-99) Month (01-12) Day of month (01-31) Day of week (01=Monday to 7=Sunday) Hours (00-23) Minutes (00-59)
Page 457 APPENDIX Where: Leap Second Sign: 01=Positive FF=Negative 00=No leap second Leap Second Month: 00=None scheduled 03=March 06=June 09=September 0C=December Leap Second Zone: 0=Out of zone 1=Within zone Zone is 15 minutes before to 15 minutes after a leap second. GPS Week: Up to FFFF GPS Second: Second of week 000000 up to 093A7F (604799 decimal)
Page 458: 5.4.14.3 Format Bbc-03 Pstn
APPENDIX 5.4.14.3 Format BBC-03 PSTN The third format is a string ASCII characters and is sent on a received character. The message should be advanced by an appropriate number such that the stop bit of each <CR> occurs at the start of the next second. For example, at 300 baud, 8 data bits, 1 stop bit, and no parity, each byte takes 10/300 s=33 ms, so the <CR>...
Page 459: Format Bbc-04
APPENDIX G = System Good D = Failure of NetClock internal diagnostics T = NetClock does not have correct time ‘l’ command The loopback command will cause NetClockto echo the next character received back to the caller. This may be used by a caller’s equipment to calculate the round trip delay across the PSTN connection in order to apply a correction to the received time data.
Page 460: Format Bbc-05 (Nmea Rmc Message)
APPENDIX Day of month (01-31) Month (01-12) Year (00-99) 0 (for 60s, no leap) or 1 (for 61s, leap) Checksum. This is calculated from the start of the message, including start identifier and excluding CRLF. It is created by adding all the 1s.
Page 461: Gssip Message Format
APPENDIX 123519 Fix taken at 12:35:19 UTC Status: A=active or V=Void. 4807.038,N Latitude 48 deg 07.038' N 01131.000,E Longitude 11 deg 31.000' E 22.4 Speed over the ground in knots 84.4 Track angle in degrees True 230394 Date—23rd of March 1994 003.1,W Magnetic Variation The checksum data, always begins with...
Page 462: Endrun Formats
APPENDIX A configuration of Time Transfer as Message Format1 and Current Status as Format2 causes the SINCGARS protocol to be emulated and the machine state to be initializated. Format1: Time Transfer (5101) Format2: Current Status (5040) Format3: Buffer Box (253) A configuration of Current Status as Message Format1 and Time Transfer as Format2 results in broadcasting of the messages Current Status (1Hz), Time Transfer (1Hz), and Buffer Box (1/6Hz) at their default rates.
Page 463: 5.4.16.2 Endrunx (Extended) Time Format
APPENDIX Minutes of the hour Seconds (00-59), (00-60 for leap second) The sign of the offset to UTC, + implies time is ahead of UTC The magnitude of the offset to UTC in units of half-hours. If ZZ = 0, then z = + Time mode character, is one of: G = GPS L = Local...
Page 464: Irig Standards And Specifications
APPENDIX Seconds (00-59), (00-60 for leap second) The sign of the offset to UTC, + implies time is ahead of UTC The magnitude of the offset to UTC in units of half-hours. If ZZ = 0, then z = + Time mode character, is one of: G = GPS L = Local...
Page 465: Irig Carrier Frequencies
APPENDIX 5.5.2 IRIG Carrier Frequencies Each IRIG code specifies a carrier frequency that is modulated to encode date and time, as well as control bits to time-stamp events. Initially, IRIG applications were primarily military and government associated. Today, IRIG is commonly used to synchronize voice loggers, recall recorders, and sequential event loggers found in emergency dispatch centers and power utilities.
Page 466 APPENDIX Time Frame Format Encoding Modulation Carrier Coded Expressions Bit rate Interval IRIG-A A135 10 kHz , BCD 1000 0.1 sec YEAR and CF IRIG-A A136 10 kHz , BCD 1000 0.1 sec YEAR IRIG-A A137 10 kHz , BCD 1000 0.1 sec YEAR...
Page 467 APPENDIX Time Frame Format Encoding Modulation Carrier Coded Expressions Bit rate Interval IRIG-E E000 DCLS , CF and 10 pps 1 sec IRIG-E E001 DCLS , CF 10 pps 1 sec IRIG-E E002 DCLS 10 pps 1 sec IRIG-E E003 DCLS , SBS 10 pps...
Page 468 APPENDIX Time Frame Format Encoding Modulation Carrier Coded Expressions Bit rate Interval IRIG-E E125 1kHz , BCD 10 pps 10 sec YEAR and CF IRIG-E E126 1kHz , BCD 10 pps 10 sec YEAR IRIG-E E127 1kHz , BCD 10 pps 10 sec YEAR and SBS...
Page 469: Irig B Output
APPENDIX had 45 bits for control functions. These control bits could be used for any use and there was no defined function. Spectracom used the control function element at index count 55 as the TIME SYNC STATUS and the sub-frame after position iden- tifiers P6 and P7 as the year info and for format E the sub-frame after P8 and P9 for the straight binary seconds (SBS).
Page 470 APPENDIX Figure 5-10: IRIG B time code description The IRIG B code contains the Binary Coded Decimal (BCD) time of year, Control Function (CF) field and the Straight Binary Seconds time of day. The following fig- ure illustrates the IRIG B data structure. The BCD time of year provides the day of the year, 1-366, and the time of day including seconds.
Page 471 APPENDIX Code word - 17 binary digits. Seconds only, recycles daily. 3. Code word structure: BCD: Word seconds digits begin at index count 1. Binary coded ele- ments occur between position identifier elements P0 and P5 (7 for seconds, 7 for minutes, 6 for hours, and 10 for days) until the code word is complete.
Page 472 APPENDIX Index marker (Binary 0 or uncoded element): 2 millisecond duration. Code digit (Binary 1): 5 millisecond duration. Position identifier: 8 millisecond duration. Reference marker, 1 per second. The reference marker appears as two con- secutive position identifiers. The second position identifier marks the on- time point for the succeeding code word.
Page 473: Faa Irig B Code Description
APPENDIX C.F. Element # Digit # Function Years Tens Y40 Years Tens Y80 PID P7 Position Identifier Space Space Space Space Space Space Space Space Space 5.5.3.1 FAA IRIG B Code Description NetClock can be configured to provide IRIG timing, reflecting UTC or local time, with or without daylight saving time corrections.
Page 474 APPENDIX 1. Time frame: 1.0 seconds 2. Pulse rates: A. Element rate: 100 per second B. Position identifier rate: 10 per second C. Reference marker rate: 1 per second 3. Element identification: The "on time" reference point for all elements is the pulse leading edge.
Page 475 APPENDIX Element 55 (550 ms) is the ±1.0 millisecond error flag. Element 55 is set to Binary 1 when the expected time error is within +/- 1.0 mil- lisecond, and a Binary 0 during all other conditions of operation. Element 56 (560 ms) is the ±5.0 millisecond error flag. Element 56 is set to Binary 1 when the expected time error is within +/- 5.0 mil- liseconds.
Page 476 APPENDIX Figure 5-11: FAA modified IRIG B Notes The beginning of each 1.0 second time frame is identified by two consecutive 8.0 ms elements (P and P ). The leading edge of the second 8.0 ms element ) is the "on time" reference point for the succeeding time code. 10 pps pos- ition identifiers P , ..
Page 477: Irig E Output
APPENDIX The straight binary (SB) time-of-day code word normally found between position identifiers P and P is eliminated for FAA IRIG B. All elements between position identifiers P and P are set to Binary 0. 5.5.4 IRIG E Output The IRIG E code contains the Binary Coded Decimal (BCD) time of year and Con- trol Functions.
Page 478 APPENDIX Year information consists of the last two digits of the current year (i.e. 98, 99, etc.). Elements 60 through 63 contain the binary equivalent of year units. Ele- ments 65 through 68 contain the binary equivalent of tens of years. In keeping with IRIG formats, the least significant bit occurs first.
Page 479 APPENDIX Figure 5-12: IRIG E time code description Additional information The beginning of each 10 second time frame is identified by two consecutive 80 ms elements (P and P ). The leading edge of the second 80 ms element (P ) is the "on time"...
Page 480 APPENDIX grammed to read a binary "one" during any specified number of time frames. Each control element is identified on the Control Function Field Table. Table 5-17: IRIG E control function field BIT No. CF ELEMENT No. FUNCTION SPACE SPACE SPACE SPACE SPACE...
Page 481: Irig H Output
APPENDIX BIT No. CF ELEMENT No. FUNCTION SPACE SPACE SPACE SPACE PID P8 POSITION IDENTIFIER SBS 20 SBS 21 SBS 22 SBS 23 SBS 24 SBS 25 SBS 26 SBS 27 SBS 28 PID P9 POSITION IDENTIFIER SBS 29 SBS 210 SBS 211 SBS 212 SBS 213...
Page 482: Irig Output Accuracy Specifications
APPENDIX Figure 5-13: IRIG H time code description 5.5.6 IRIG Output Accuracy Specifications The IRIG outputs deliver signals with the following 1PPS accuracy: IRIC DCLS Measured Signal Category Accuracy IRIG A 30 ns IRIG B 30 ns IRIG G 30 ns IRIG NASA 30 ns IRIG E...
Page 483: Technical Support
To request technical support for your NetClock unit, please go to the "Timing Support" page of the Safran website, where you can not only submit a support request, but also find additional technical documentation. Phone support is available during regular office hours under the telephone num- bers listed below.
Page 484: Return Shipments
Freight to Safran is to be prepaid by the customer. Note: Should there be a need to return equipment to Safran, it must be shipped in its original packing material. Save all packaging mater- ial for this purpose.
Page 485: List Of Images
Table 5-15: IRIG B control function field Table 5-16: FAA Time Error Indicators Table 5-17: IRIG E control function field Table 5-18: Safran contact information List of Images Figure 1-1: NetClock 9483 Series Front Panel Display Figure 1-2: NetClock 9489 Front Panel...
Page 486: Document Revision History
APPENDIX Figure 2-4: NTP Server 1 is out of sync Figure 3-1: How the System Time is derived Figure 3-2: BroadShield patch installation results Figure 3-3: Host disciplining Figure 4-1: NetClock front panel Figure 4-2: Login banner (example) Figure 4-3: Spectracom TV400 series display clock Figure 4-4: Wiring the RS-485 signal Figure 5-1: Rear panel NetClock Model 9489 Figure 5-2: Option module navigation...
Page 487 APPENDIX Description Date 3019 Updates coinciding with latest software Sept. 2012 release. Updated warranty, feature, and specification information, PTP inform- ation sections, adjusted IRIG reference information sections. 3103 General updates, enhancements coin- Dec. 2012 ciding with latest software release 3250 General updates, enhancements coin- Jan.
Page 488 APPENDIX Description Date 0693 Added topic "Temperature Man- Dec. 2015 agement". Content modifications under Notification Configuration. Content modifications under GNSS receiver configuration. Document maintenance and errata imple- mentation. DOC- Updates to include changes imple- May 2016 000015 mented in the latest software version. Content modifications: GNSS receiver specifications, NTP throughput spe- cifications;...
Page 489 IDM suite. Corrected oscillator holdover drift data. Removed Classic Web UI information. DOC-471 Changed to Orolia company branding. March 2021 Corrected website links. Added IDM Suite November information. Updated various errata. 2021 Changed to Safran company branding. November 2024 NetClock User Reference Guide...
Page 490 BLANK PAGE. NetClock User Reference Guide...
Page 491 A-GPS 223, Clean and Halt Alarm threshold, Noti- fication Alarm Command-line interpreter Ancillary kit 31, Connector, DC power Anycast contact, Safran Trusted 4D Configuring 132-134 Cookies NTP over ... Anycast, Advanced Con- figuration via NTP Expert Mode Daylight Savings Time...
Page 492 INDEX EMC compliance HALT command Emissions Holdover 9, 23, 97, 113, 134-136, 140, 149, 152, 163, 174, 179-180, 187- Electro-magnetic compliance 188, 228, 233, 235, 240, 248- EndRun Formats 249, 251, 292, 298, 305, 320, 352, 354, 357, 359, 361, 365, Engine Id EST API Host disciplining 141,...
Page 493 INDEX license file Expert Mode 105, applying Peers 112-113, Local clock Servers 112-113, Local System Input Reference Setup screen Locked out, regain access stratum Log entries Symmetric Keys Logging into the Web UI time stamp Login banner timescale Login Web UI NTP Peer Preference Logs overview Offset...
Page 494 INDEX Preferred NTP Server Primary Navigation menu Screen clock Private keys, SSH Self survey Self survey, GNSS position 214, one-step mode Self survey, GNSS receiver two-step mode SFTP Public keys, SSH Shipment, return Show Clock Signature control Single satellite GNSS receiver Rack mounting mode...
Page 495 INDEX Symmetric keys Synchronizing Windows computers Yellow PPS status light 187, System on-time point Yellow status light 187, System Time 112, TACACS+ Authentication Technical support Temperature 239, operating, range Terminal emulator TFOM Timeout Timeout, Web UI, automatic Transmission unit, maximum Troubleshooting Unicast unlock keypad...

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