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Orolia Spectracom VelaSync 1232 User Manual

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Spectracom Part No.: 1232-5000-0050
 
VelaSync
1232
MODEL
User Manual
Revision: 4
Date: 2-Apr-2019
spectracom.com
 
 
 

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  • Page 1 VelaSync 1232 MODEL User Manual     Spectracom Part No.: 1232-5000-0050 Revision: 4 Date: 2-Apr-2019         spectracom.com...
  • Page 2    ...
  • Page 3 Orolia reserves the right to make changes to the product described in this doc- ument at any time and without notice. Any software that may be provided with the product described in this document is furnished under a license agreement or nondisclosure agreement.
  • Page 4 Blank page. VelaSync 1232 User Manual...

  • Page 5: Table Of Contents

    CHAPTER 1 Introduction & Overview 1.1  Product Overview 1.2  About this Manual 1.3  Designated Use of this Product 1.4  Technical Specifications 1.4.1  Hardware 1.4.1.1  Server 1.4.1.2  GPS/GNSS Receiver 1.4.1.3  Oscillator 1.4.2  I/O Connectors 1.4.2.1  Timing Connector 1.4.2.2  Communication Ports 1.4.3  Environmental Specifications 1.4.4  Size, Weight &...
  • Page 6 CHAPTER 2 Installation & Setup 2.1  Unpacking and Inventory 2.2  Selecting the Right Installation Location 2.3  Rack Mounting: SAFETY 2.4  Rack Installation 2.4.1  TELCO Rack Installation 2.5  Basic Connections Setup 2.5.1  Connecting the GPS Antenna 2.5.2  Connecting Power 2.5.3  Establishing a Network Connection 2.6  Accessing the Web UI 2.7  Configuring IP Address(es) 2.7.1  Changing the IP address using an Ethernet connection...
  • Page 7 2.10.1  Checklist NTP Configuration 2.10.2  The NTP Setup Screen 2.10.3  Dis-/Enabling NTP 2.10.4  Viewing NTP Clients 2.10.5  Restoring the Default NTP Configuration 2.10.6  NTP Output Timescale 2.10.7  NTP Reference Configuration 2.10.8  NTP Servers and Peers 2.10.8.1  The NTP Servers and NTP Peers Panels 2.10.8.2  NTP Servers: Adding, Configuring, Removing 2.10.8.3  NTP Peers: Adding, Configuring, Removing 2.10.9  NTP Authentication...
  • Page 8 3.2.3.2  Leap Second Alert Notification 3.2.3.3  Leap Second Correction Sequence 3.2.3.4  Configuring a Leap Second 3.2.4  Local Clock(s), DST 3.2.4.1  Adding a Local Clock 3.2.4.2  DST Examples 3.2.4.3  DST and UTC, GMT 3.3  Managing References 3.3.1  Input Reference Priorities 3.3.1.1  Configuring Input Reference Priorities 3.3.1.2  The "Local System"...
  • Page 9 4.2  Rebooting the System 4.3  Hardware Tasks 4.3.1  Replacing a Power Supply 4.3.2  Removing/Installing a Hard Disk Drive 4.4  Notifications 4.4.1  Configuring Notifications 4.4.2  Notification Event Types 4.4.2.1  Timing Tab: Events 4.4.2.2  GPS Tab: Events 4.4.2.3  System Tab: Events 4.4.3  Configuring GPS Notification Alarm Thresholds 4.4.4  Setting Up SNMP Notifications 4.4.5  Setting Up Email Notifications 4.5  Managing Users and Security...
  • Page 10 4.7.2.1  Types of Logs 4.7.2.2  The Logs Screen 4.7.2.3  Displaying Individual Logs 4.7.2.4  Saving and Downloading Logs 4.7.2.5  Setting up a Remote Log Server 4.7.2.6  Clearing All Logs 4.8  Updates and Licenses 4.8.1  Software Updates APPENDIX Appendix 5.1  Troubleshooting 5.1.1  Minor and Major Alarms 5.1.2  Troubleshooting: System Configuration 5.1.2.1  System Troubleshooting: Browser Support 5.1.3  Troubleshooting –...
  • Page 11 5.8  Technical Support 5.8.1  Regional Contact 5.9  Return Shipments 5.10  License Notices 5.10.1  Chrony v3.0 5.10.2  OpenSSH 5.10.3  OpenSSL 5.11  List of Tables 5.12  List of Images 5.13  Document Revision History INDEX VelaSync 1232 User Manual • TABLE OF CONTENTS...
  • Page 12 BLANK PAGE. VelaSync 1232 User Manual • TABLE OF CONTENTS...

  • Page 13: Introduction & Overview

    Introduction & Overview   The following topics are included in this Chapter: 1.1  Product Overview 1.2  About this Manual 1.3  Designated Use of this Product 1.4  Technical Specifications 1.5  Front Panel Overview 1.6  Rear Panel Overview 1.7  The VelaSync Web UI 1.8  YOUR SAFETY 1.9  Regulatory Compliance CHAPTER 1 •...

  • Page 14: Product Overview

    1.1  Product Overview 1.1   Product Overview VelaSync® 1232 High-Speed Time Server is an enterprise-class time serving appliance designed for high-frequency trading and other network applications that require low laten- cies. VelaSync’s customized configuration, comprising state-of-the-art network synchronization software, precision GNSS (GPS) timing technology, and reliable server hardware allows it to provide high-performance time management over multiple network interfaces.
  • Page 15 1.2  About this Manual technical specifications other reference information. The main objectives of this User Manual are:   a. to assist you with the installation and configuration of this product in a safe and effi- cient manner   b. to help you familiarize yourself with VelaSync’s user interfaces, features and func- tionality.

  • Page 16: Designated Use Of This Product

    1.3  Designated Use of this Product guides you through the web user interface, Web UI, explaining its features and functions. CHAPTER 4: System Administration Frequently executed tasks are described in CHAPTER 4, broken down into the categories, including, "Hardware Tasks" on page 163, "Notifications"...

  • Page 17: Technical Specifications

    1.4 Technical Specifications 1.4   Technical Specifications 1.4.1   Hardware 1.4.1.1   Server Supermicro SuperServer 5018R- WR rackmount server with 1U chassis and X10SRW-F motherboard: Four 8cm counter-rotating PWM fans One passive CPU heatsink Two riser cards Four hot-swap 3.5" drive bays (SATA) Intel 1.8 ...

  • Page 18: Oscillator

    1.4 Technical Specifications 1.4.1.3   Oscillator Table 1-1:   Oscillator accuracies   OCXO Accuracy to UTC (1 sigma locked to 50 ns 25 ns GPS) Holdover Accuracy (loss of GPS signal after 2 weeks locked, constant temperature) After 4 hours 1μs 0.2 μs After 24 hours...
  • Page 19 1.4 Technical Specifications IRIG DCLS Input Accepts IRIG formats A, B, G; NASA36; IEEE 1344 pulse width codes (does not accept Manchester modulated codes) RS-485 differential input: –7V to +12 V common mode voltage input range, 200 mV differential voltage threshold Single-ended input: +1.3 V , +2 V VIL min...
  • Page 20 1.4 Technical Specifications OCXO (Rugged   TCXO OCXO Option, cPCI & VPX only) Holdover (constant temp after 2 weeks of GNSS lock) After 4 hours 12 μs 3 μs 1 μs After 24 hours 100 μs 25 μs μs 10 MHz Output 10 MHz sine wave output from oscillator Output impedance: 50 Ω...

  • Page 21: Communication Ports

    1.4 Technical Specifications Amplitude: TTL compatible, 4.3 V , base-to-peak into 50 Ω [PCIe only: 2.2 V minimum, base-top-peak into high impedance] Pulse width: 50 ns to 999 ms active pulse width, in 20 ns increments Period: 100 ns min, 60 s max, in 20 ns increments Polarity (selectable): Positive or negative Time-Match/Alarm Output Amplitude: TTL compatible, 4.3 V minimum, base-to-peak into 50 Ω;...

  • Page 22: Front Panel Overview

    1.5  Front Panel Overview 1.5   Front Panel Overview Figure 1-2:   Front Panel (bezel removed) 1.5.1   Control Buttons UNIT ID ("UID"): Unit identifier button – to identify this unit, press this button (or activate via IPMI) to turn the blue "i" LED in front and back of unit on/off. RESET button: Reboot the system Power...

  • Page 23: Hard Disk Drives

    1.5  Front Panel Overview HDD: IDE channel activity when flashing yellow Power: Power is applied to power supplies (bright green) 1.5.3   Hard Disk Drives Each hard disk drive (HDD) carrier has two LEDs: Green LED: Indicates drive activity, when illuminated. LED: When blinking, the drive is rebuilding.

  • Page 24: Rear Panel Overview

    1.6  Rear Panel Overview 1.6   Rear Panel Overview Figure 1-3:   VelaSync rear panel Legend: 1./2.: 1GbE ports (RJ-45) 3./4.: 10 GbE ports (SFP+) 5./6.: Optional 10 GbE ports (SFP+), or 40 GbE (QSFP+) 7.: GPS/GNSS antenna connector (SMB) 8.: VGA 9.: Spectacom TSync timing connector Includes rear status LED's...

  • Page 25: The Velasync Web Ui

    1.7  The VelaSync Web UI 1.7   The VelaSync Web UI VelaSync has an integrated web user interface (referred to as "Web UI" throughout this documentation) that can be accessed from a network-connected computer, using a stand- ard web browser. The Web UI is used to configure and monitor the unit. Note: An integrated Command-Line Interpreter interface (CLI) allows the use of a subset of commands that are integrated into the Web UI.

  • Page 26: The Interfaces Menu

    1.7  The VelaSync Web UI HOME: Return to the HOME screen (see above) INTERFACES: Access the configuration pages for … … references (e.g., GNSS, NTP) … outputs (e.g. 10 MHz, PPS, NTP) and … installed input/output option cards. MANAGEMENT: Access the NETWORK setup screens, and OTHER setup screens e.g., to configure Reference Priorities, System Time, and the Oscillator.

  • Page 27: The Configuration Management Menu

    1.7  The VelaSync Web UI 1.7.3   The Configuration MANAGEMENT Menu MANAGEMENT menu on the Web UI's Main screen provides access to VelaSync's con- figuration screens and settings. On the left side, under NETWORK, the following standard setup screens can be found: Network Setup HTTPS...
  • Page 28 1.7  The VelaSync Web UI CHAPTER 1 • VelaSync 1232 User Manual Rev. 4...

  • Page 29: Your Safety

    1.8  YOUR SAFETY 1.8   YOUR SAFETY This product has been designed and built in accordance with state-of-the-art standards and the recognized safety rules. Nevertheless, its use may constitute a risk to install- ation/maintenance personnel if used under conditions that must be deemed unsafe, or if the warnings and precautions explained below are ignored.

  • Page 30: Safety Advisories

    1.8  YOUR SAFETY 1.8.2   SAFETY Advisories DANGER! ELECTRICAL HAZARD — DO NOT OPEN THE ENCLOSURE: No user-serviceable parts inside (the product warranty will be voided, if the Seal is broken). Should you ever decide to open the enclosure at your own risk, unplug and remove BOTH power supplies first (the POWER button will NOT de-energize the system!).
  • Page 31 1.8  YOUR SAFETY Ultimate disposal of this product should be handled according to all national laws and reg- ulations. SAFETY: General Advice Make sure you possess the professional skills, and have received the training neces- sary for the type of work you are about to perform. The equipment must only be used in technically perfect condition.

  • Page 32: Regulatory Compliance

    1.9  Regulatory Compliance a fan), contact Spectracom service (see "Technical Support" on page 237). DANGER! — ELECTRICAL HAZARD — DO NOT OPEN THE ENCLOSURE: No user-serviceable parts inside. Should you ever decide to open the enclos- ure at your own risk, unplug and remove BOTH power supplies first (the POWER button will NOT de-energize the system!) Caution: Electronic equipment is sensitive to Electrostatic Discharge...
  • Page 33 1.9  Regulatory Compliance   Note: This is a Class A product. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. Safety This product has been tested and meets the requirements specified in: IEC/EN/UL/CSA 62368-1:2014 EMC Compliance This product has been tested and meets the following standards:...
  • Page 34 1.9  Regulatory Compliance BLANK PAGE. CHAPTER 1 • VelaSync 1232 User Manual Rev. 4...

  • Page 35: Installation & Setup

    Installation & Setup   The following topics are included in this Chapter: 2.1  Unpacking and Inventory 2.2  Selecting the Right Installation Location 2.3  Rack Mounting: SAFETY 2.4  Rack Installation 2.5  Basic Connections Setup 2.6  Accessing the Web UI 2.7  Configuring IP Address(es) 2.8  Advanced Timing Connections 2.9  Configuring Network Settings 2.10  Configure NTP...

  • Page 36: Unpacking And Inventory

    2.1  Unpacking and Inventory 2.1   Unpacking and Inventory Caution: Electronic equipment is sensitive to Electrostatic Discharge (ESD). Observe all ESD precautions and safeguards when handling the unit. Unpack the equipment and inspect it for damage. If any components have been damaged in transit, you should file a damage claim with the with the carrier who delivered the unit.

  • Page 37: Rack Mounting: Safety

    2.3  Rack Mounting: SAFETY A dedicated room with restricted access Electrically grounded mechanically stable rack, with physical clearance unrestricted air flow and servicing: approx. 650 mm [25”] in front of rack, 770 mm [30”] in the back of rack Clean, dust-free, and stable ambient temperature not to exceed 35°C [95°F].
  • Page 38 2.4  Rack Installation Note: Also consult the installation instructions that came with the rack or cabinet you plan on using. All VelaSync units are shipped with two rack rail assemblies, each of which consists of two sections: inner rail, which is pre-installed to the server chassis outer rail assembly, which faces the rack Figure 2-1:  ...
  • Page 39 2.4  Rack Installation Figure 2-2:   Optional inner rails Installing the outer rail to the rack:   1. Measure the distance from the front rail to the rear rail of the rack. Attach a short bracket to the front side of each of the outer rails, and a long bracket to the rear side of each outer rail.

  • Page 40: Telco Rack Installation

    2.4  Rack Installation   3. Line up the rear of the inner rails at the chassis with the front of the outer rails at the rack. Slide the server chassis into the rack, keeping the pressure even on both sides. Depress the locking tabs, if needed (they will click upon proper engagement).

  • Page 41: Basic Connections Setup

    2.5  Basic Connections Setup 2.5   Basic Connections Setup   This section is designed to take your through the initial setup steps in order to allow you to communicate with and configure your VelaSync. Figure 2-4:   VelaSync rear panel 2.5.1  ...
  • Page 42 2.5  Basic Connections Setup DANGER! This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that the protective device is rated not greater than: 250 V, 20 A.   2. Plug in power to both power supplies (items 13 & 14 "Basic Connections Setup"...

  • Page 43: Establishing A Network Connection

    2.6  Accessing the Web UI 2.5.3   Establishing a Network Connection   5. You can chose to communicate with your VelaSync upon setup in one of three ways: ETH0, using the default static IP address (see step 6), ETH1-ETH5, using a DHCP network (see step 7), via the serial port (see "Setting Up an IP Address via the Serial Port"...

  • Page 44: Configuring Ip Address(Es)

    2.7  Configuring IP Address(es) Note: For security reasons, please change the default password immediately; see: "Managing Passwords" on page 180.   2. Upon initial login, you will be asked to register your product. Spectracom recom- mends to register VelaSync, so as to receive software updates and services notices. also register your...

  • Page 45: Setting Up An Ip Address Via The Serial Port

    2.7  Configuring IP Address(es)   6. In this panel, you can perform the following actions: enable or disable the ethernet port enable DHCP disable DHCP (selecting this function will provide access to the remaining set- tings) assign a static IP address set netmask values set Gateway, domain, DNS, and MTU values.
  • Page 46 2.7  Configuring IP Address(es) serial cable. The VelaSync serial port operates at 9600 baud, 8 data bits, no parity, 1 stop bit. The serial port can be used to make configuration changes (such as the network settings), retrieve operational data (e.g., GNSS receiver information) and log files, or to perform oper- ations such as resetting the admin password.

  • Page 47: Subnet Mask Values

    2.8  Advanced Timing Connections 2.7.3   Subnet Mask Values Table 2-1:   Subnet mask values Network Bits Equivalent Netmask Network Bits Equivalent Netmask 255.255.255.252 255.255.192.0 255.255.255.248 255.255.128.0 255.255.255.240 255.255.0.0 255.255.255.224 255.254.0.0 255.255.255.192 255.252.0.0 255.255.255.128 255.248.0.0 255.255.255.0 255.240.0.0 255.255.254.0 255.224.0.0 255.255.252.0 255.192.0.0 255.255.248.0 255.128.0.0...

  • Page 48: Timing Interface Adapter Cable

    2.8  Advanced Timing Connections 2.8.1.1   Timing Interface Adapter Cable VelaSync is shipped with a 15 cm (6") adapter cable that is used to connect the micro 25- pin timing interface connector on the card to the breakout cable: Figure 2-7:   Adapter cable Table 2-2:  ...

  • Page 49: Basic Breakout Cable

    2.8  Advanced Timing Connections END "A" END "B" PIN-13 PIN-13 PIN-14 PIN-14 PIN-15 PIN-15 PIN-16 PIN-16 PIN-17 PIN-17 PIN-18 PIN-18 PIN-19 PIN-19 PIN-20 PIN-20 PIN-21 PIN-21 PIN-22 PIN-22 PIN-23 PIN-23 PIN-24 PIN-24 PIN-25 PIN-25 NO CONNECT PIN-26 SHIELD 2.8.1.2   Basic Breakout Cable The basic breakout cable breaks out a subset of features from the 26-pin timing connector to separate BNC and DB-9 connectors for use.
  • Page 50 2.8  Advanced Timing Connections Figure 2-8:   Breakout cable, basic version Table 2-3:   Pinout, basic breakout cable (unspecified pins in the table are not connected) Signal Signal P1—Timing Connector GPIO Output 0 IRIG AM Input – Ground GPIO Output 1- Reserved GPIO Input 0 Ground...

  • Page 51: Premium Breakout Cable

    2.8  Advanced Timing Connections Signal Signal IRIG DCLS Input + Ground IRIG DCLS Input – Ground P3—IRIG AM Input (BNC Female) IRIG AM Input + IRIG AM Input – P4—IRIG AM Output (BNC Female) IRIG AM Output Ground P5—1PPS Input (BNC Female) External 1PPS Input Ground P6—1PPS Output (BNC Female)
  • Page 52 2.8  Advanced Timing Connections Figure 2-9:   Breakout cable, premium version Table 2-4:   Pinout, premium breakout cable (unspecified pins are not connected in the cable) Signal Signal P1—Timing Connector GPIO Output 2- Reserved GPIO Output 3- Reserved Ground Ground GPIO Output 0 GPIO Output 1- Reserved GPIO Input 2- Reserved...
  • Page 53 2.8  Advanced Timing Connections Signal Signal IRIG DCLS I/O (DB-9 Female) Ground IRIG DCLS Output + Ground IRIG DCLS Output – IRIG DCLS Input + Ground IRIG DCLS Input -   P3—10MHz Output (BNC Female) 10 MHz Output Ground P4—1PPS Output (BNC Female) 1PPS Output Ground P5—IRIG AM Input (BNC Female)

  • Page 54: Status Leds

    2.8  Advanced Timing Connections 2.8.2   Status LEDs VelaSync High-Speed Enterprise Time Server includes a TSync Timing card with three LEDs that provide visual status information. See table LED Colors below for these indic- ator codes. The LEDs operate in certain modes by default. Table 2-5:  ...

  • Page 55: Configuring Network Settings

    2.9  Configuring Network Settings Color/FUNCTION State green yellow /SYNC /HOLDOVER /ALARM Synchronized Holdover No Longer Synchronized Free Run Blink Blink Fault Code Code Code Fault state is indicated by the blinking code. It blinks the number of times indicated below, with a 2-second pause between each set.
  • Page 56 2.9  Configuring Network Settings Actions panel provides: General Settings: Allows quick access to the primary network settings neces- sary to connect VelaSync to a network. See "General Network Settings" on the facing page. Web Interface Settings: Web interface timeout: Determines how long a user can stay logged on.

  • Page 57: General Network Settings

    2.9  Configuring Network Settings 2.9.1   General Network Settings To expedite network setup, VelaSync provides the General Settings window, allowing quick access to the primary network settings. To access the General Settings window:   1. Navigate to MANAGEMENT > Network Setup.

  • Page 58: Network Ports

    2.9  Configuring Network Settings 2.9.2   Network Ports Ports act as communication endpoints in a network. The hardware configuration of your unit will determine which ports (e.g., Eth0, Eth1, ...) are available for use. Before using a port, it needs to be enabled and configured. To enable &...
  • Page 59 2.9  Configuring Network Settings Static IPv4 Address: This is the default, or the unique address assigned by the network administrator. Table 2-8:   Default IP addresses Default "static lease" ETH port IP address ETH0 192.168.1.1 ETH1 defaults to DHCP ETH2 defaults to DHCP ETH3 defaults to DHCP...

  • Page 60: Network Services

    2.9  Configuring Network Settings 2.9.3   Network Services Several standard network services can be enabled or disabled via the easily accessible Net- work Services Panel under MANAGEMENT > Network Setup: Network Services panel has ON/OFF toggle switches for the following daemons and features: SSH: Secure Shell cryptographic network protocol for secure data communication HTTP: Hypertext Transfer Protocol...
  • Page 61 2.9  Configuring Network Settings   3. The Network Access Rules window displays:   4. In the Allow From field, enter a valid IP address. It is not possible, however, to add direct IP addresses, but instead they must be input as blocks, i.e. you need to add /32 at the end of an IP address to ensure that only that address is allowed.

  • Page 62: Ipmi Configuration

    2.9  Configuring Network Settings 2.9.5   IPMI Configuration The Intelligent Platform Management Interface (IPMI) is a protocol that allows for out-of- band management of computer systems, even when they are turned off. IPMI is active whenever the server is connected to power. VelaSync has a dedicated IPMI Ethernet interface (see rear panel illlustration, item no. 11 under "Rear Panel Overview"...
  • Page 63 2.9  Configuring Network Settings   1. Navigate to MANAGEMENT > NETWORK: SSH Setup. The SSH Setup window 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 64 2.9  Configuring Network Settings The SSH client utilities SSH, SCP, and SFTP allow for several modes of user authen- tication. SSH allows you to remotely login or transfer files by identifying your account and the target machine's IP address. As a user you can authenticate yourself by using your account password, or by using a Public Private Key Pair.
  • Page 65 2.9  Configuring Network Settings Note: Changing the values and submitting them in this manner DOES NOT generate new host public/private key pairs. See "Creating Host Public/Priv- ate Key Pairs" below for information on how to create new host pub- lic/private key pairs. Deleting Host Keys You can delete individual host keys.
  • Page 66 2.9  Configuring Network Settings Note: If a key size is undefined, the default key bit length size used is 2048. A key with a zero length or blank key size field will not be cre- ated. When you delete a host key and recreate a new one, SSH client sessions will warn you that the host key has changed for this particular IP address.
  • Page 67 2.9  Configuring Network Settings   3. Edit the authorized_keys file as desired.   4. Click the Submit button or Apply button. The file is to be formatted such that the key is followed by an optional comment, with only one key per line. The file format, line terminations, and other EOL or EOF characters should correspond to UNIX conventions, not Windows.
  • Page 68 2.9  Configuring Network Settings You must first provide the secure Spectracom product a RSA public key found typically in the OpenSSH id_rsa.pub file. Then you may attempt to create an SSH session. ssh -i ./id_rsa spadmin@10.10.200.5 Enter passphrase for key './id_rsa': mysecretpassphrase Please consult the SSH client tool’s documentation for specifics on how to use the tool, select SSH protocols, and provide user private keys.

  • Page 69: Snmp

    2.9  Configuring Network Settings Perform an SFTP file transfer to the device using Public Key with Pass- phrase authentication sftp -i ./id_rsa spadmin@10.10.200.5 Enter passphrase for key './id_rsa': mysecretpassphrase You will be presented with the SFTP prompt allowing interactive file transfer and directory navigation.
  • Page 70 2.9  Configuring Network Settings Navigate to MANAGEMENT > NETWORK: SNMP Setup. The SNMP screen will display: SNMP screen is divided into 3 panels:   1. The Main panel, which is subdivided into 3 displays: SNMP V1/V2: This panel allows configuration of SNMP v1 and v2c com- munities (used to restrict or allow access to SNMP).
  • Page 71 2.9  Configuring Network Settings   2. The Actions panel , which contains the Restore Default SNMP Con- figuration button.   3. The SNMP Status panel, which offers: SNMP ON/OFF switch. Authentication Error Trap ON/OFF switch. SysObjID — The System Object ID number. This is editable in the SNMP Status panel (see "Configuring the SNMP Status"...
  • Page 72 2.9  Configuring Network Settings   3. The SNMP Status pop-up window will display: The following settings can be configured in this window: In the sysObjectID field, enter the SNMP system object ID. In the sysContact field, enter the e-mail information for the system contact you wish to use.

  • Page 73: Snmp V1/V2C

    2.9  Configuring Network Settings Note: When compiling the MIB files, some SNMP Manager programs may require the MIB files to be named something other than the cur- rent names for the files. The MIB file names may be changed or edited as necessary to meet the requirements of the SNMP Man- ager.
  • Page 74 2.9  Configuring Network Settings   4. Enter the required information in the fields provided: IP Version field provides a choice of IPv4, IPV6 or both IPv4 and IPv6 (= default). The choices offered below will change in context with the choice made in the IP Version field.

  • Page 75: Snmp V3

    2.9  Configuring Network Settings   3. The SNMP V1/V2c Settings for Access window will display. Note: The options available for editing in the SNMP V1/V2c Settings for Access window will vary contextually according to the inform- ation in the entry chosen.  ...
  • Page 76 2.9  Configuring Network Settings   4. Enter the required information in the fields provided. SNMP User Names and passwords are independent of users that are con- figured on the Tools/Users page. User names are arbitrary. SNMP User Names should be between 1 and 31 characters in length.

  • Page 77: Snmp Traps

    2.9  Configuring Network Settings   4. Apply your changes and click Submit. OR: Click Delete to remove the User. 2.9.7.3   SNMP Traps SNMP traps allow for automatic event notification, and as such are one way to remotely monitor VelaSync's status. SNMP traps indicate the status change that caused the trap to be sent and may also include one or more objects, referred to as variable- bindings, or varbinds...
  • Page 78 2.9  Configuring Network Settings   4. Enter the required information in the fields provided. (Note that the options will vary contextually according to your Version.)   5. Version field provides a choice between v1, v2c, and [= default] Community field for the SNMP Community string. [v1, v2c] SNMP User...

  • Page 79: Vlan Support

    2.9  Configuring Network Settings Each row of the SNMP Traps panel includes the version of the SNMP functionality, the User/Community name for the trap, the IP address/Hostname of the SNMP Manager and values applicable only to SNMP v3, which include the Engine ID, the Authorization Type, the Privilege Type.

  • Page 80: Configure Ntp

    2.10  Configure NTP   3. Select the parent interface [eth0-eth5], type in your VLAN ID, and click submit. Repeat the process as necessary. Your new VLAN interfaces will now be displayed in the VLAN Setup panel, listed as eth[#]. [VLAN ID]. 2.10  ...

  • Page 81: Checklist Ntp Configuration

    2.10  Configure NTP Note: In order to configure NTP, you need to access the NTP Setup screen which requires ADMINISTRATOR rights. 2.10.1   Checklist NTP Configuration The following is a list of configuration settings you may want to consider as you setup your NTP Service.
  • Page 82 2.10  Configure NTP The NTP Servers and Peers panels … are located on the right-hand side of the screen: Servers: In this display you can view the NTP Servers that VelaSync detects in your network. It is through this display that you configure external NTP references. "NTP Servers: Adding, Configuring, Removing"...
  • Page 83 2.10  Configure NTP Type IP Version IP Mask Auth only Enable Query View NTP Clients: Click here to reveal a table of all the clients your VelaSync is ser- vicing. (See also "Viewing NTP Clients" on the next page.) Information for each client includes: Client IP Received Packets Mode...

  • Page 84: Dis-/Enabling Ntp

    2.10  Configure NTP 2.10.3   Dis-/Enabling NTP If you applied NTP configuration changes e.g., added a new NTP Server, VelaSync usually will stop and re-start the NTP Service automatically once you clicked Submit. Changes made to NTP configurations will also take effect after VelaSync is either rebooted or power-cycled.

  • Page 85: Restoring The Default Ntp Configuration

    2.10  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, Pre- vious,...
  • Page 86 2.10  Configure NTP 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 dis- played in the Web UI. If VelaSync is operated as a Stratum 2 server, i.e. as a client to a Stratum 1 server (see "NTP Stratum Synchronization"...

  • Page 87: Ntp Reference Configuration

    2.10  Configure NTP 2.10.7   NTP Reference Configuration VelaSync's NTP Service needs to be setup such that it utilizes the time source ("input ref- erence") you want it to use. There are two options for an NTP Server to derive its time from:  ...

  • Page 88: The Ntp Servers And Ntp Peers Panels

    2.10  Configure NTP For more information about Holdover, see "Holdover Mode" on page 148.   2.10.8.1   The NTP Servers and NTP Peers Panels NTP Servers NTP Peers panels display which servers in the network are set up at higher or equal Stratums (Servers or Peers, respectively), and their configurations. These panels are also used to add, configure, or remove NTP Servers and Peers.

  • Page 89: Ntp Servers: Adding, Configuring, Removing

    2.10  Configure NTP GPS: GNSS reference IRIG: IRIG reference HVQ: HAVE QUICK reference FREQ: Frequency reference PPS: External 1PPS reference PTP: PTP reference ATC: ASCII time code reference USER: User provided time LOCL: Local reference (synced to itself) INIT: NTP on server/peer is initializing STEP: NTP on server/peer is performing initial synchronization step and restarting AUTH...
  • Page 90 2.10  Configure NTP   1. Navigate to MANAGEMENT > NETWORK: NTP Setup.   2. The NTP Setup screen appears. The NTP Servers panel displays a list of recog- nized NTP servers. Click the GEAR icon in the upper right-hand corner of the Servers panel.

  • Page 91: Ntp Peers: Adding, Configuring, Removing

    2.10  Configure NTP   4. The NTP Server Edit window displays. Enter the required information: Host: The IP address for the server to be used as host. Min Poll Interval: Select a value from the drop down (the default is 3 (8s)). Max Poll Interval: Select a value from the drop down (the default is 3 (8s)).
  • Page 92 2.10  Configure NTP a new NTP Peer, click the PLUS icon in the top right corner of the NTP Peers panel. REMOVE an NTP Peer (and its associated configurations), click the X-but- ton next to it.   3. The NTP Peers edit window opens:  ...

  • Page 93: Ntp Authentication

    2.10  Configure NTP Note: Please note that it is not advisable to mark more than one NTP Peer as Preferred, even though VelaSync will not pre- vent you from doing so.   5. Click Submit, or press Enter. 2.10.9   NTP Authentication Since NTP information is distributed across entire networks, NTP poses a security risk: Falsified NTP time stamps or other NTP-related information can be exploited by an attacker.
  • Page 94 2.10  Configure NTP 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 pro- ceed to Step 4. DELETE a key pair, click the corresponding Delete button, and click the dialog box to confirm and complete the procedure.
  • Page 95 2.10  Configure NTP MD5 (the default) SHA1 MDC2 MDC2 RIPEMD160 Str—The key string must be readable ASCII and between 1 and 16 char- acters long.   5. Click the Submit button: The changes will be reflected in the table of the NTP Sym- metric Keys window, which is displayed after clicking the...

  • Page 96: Ntp Access Restrictions

    2.10  Configure NTP NOTES: Duplicate key IDs are not permitted. NTP requests received by that do not contain 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 authenticator using the same Key ID provided in the NTP request.
  • Page 97 2.10  Configure NTP   3. The NTP Access Restrictions Status window will display: EDIT an access restriction, click the PLUS icon or the Change but- ton, respectively, and proceed to Step 4. below. DELETE an access restriction, click the corresponding Delete button, and confirm by clicking OK.

  • Page 98: Spectracom Technical Support For Ntp

    2.11  Configuring PTP Require Authentication (checkbox)—Check this box if you want the additional security of authorized access. VelaSync to accept only authenticated requests (MD5) from this user or network segment. Allow NTP Queries (checkbox)—Check this box if you want to allow external NTP queries into VelaSync services.

  • Page 99: The Ptp Screen

    2.11  Configuring PTP 2.11.1   The PTP Screen The PTP screen provides PTP status information, and provides access to all configurable PTP settings. To access the PTP screen, navigate to MANAGEMENT > NETWORK: PTP Setup. The PTP screen will open: Figure 2-10:  ...
  • Page 100 2.11  Configuring PTP Settings changed by the user will be maintained when the PTP daemon is stopped and star- ted, and between reboots and powercycles. Figure 2-11:   Edit PTP Settings panel Protocol tab version: [1, 2] Select Version 1 or Version 2. Domain: [1 through 127] Sets the current PTP Domain Number, as defined in IEEE Std 1588-2008 Section 7.1 Communication...
  • Page 101 2.11  Configuring PTP --------------------------------------------- The Unicast mode is activated at the initiative of the Slaves. Each Slave, which wants to run in Unicast mode, shall first negotiate Unicast contracts with the Master. Sync Rate: The rate at which Sync messages are sent, in packets per second. [1 = 1 packet/sec.;...

  • Page 102: The Ptp Statistics Panel

    2.11  Configuring PTP Unicast Ttl: [64] Time to live for Unicast packets. 2.11.1.2   The PTP Statistics Panel This panel provides statistics for each Ethernet port. If the PTP is set to OFF for a specific port, this screen will not display any information. All statistics shown are based on the traffic that is detectable by VelaSync, i.e.

  • Page 103: Configuration - General Steps

    2.12  PRISMA Compliance Setup 2.11.3   Configuration — General Steps Ensure that the Ethernet port used for PTP is connected to the network. Navigate MANAGEMENT > NETWORK: Network Setup, and verify the STATUS in the Ports panel. Be sure that valid time and 1PPS references are currently selected: Navigate to MANAGEMENT >...
  • Page 104 2.12  PRISMA Compliance Setup compliance-transmitter-config set device identity <name> set the device identity compliance-transmitter-config transmit-now run the transmitter on demand compliance-transmitter-config schedule <when> add a scheduled job to cron as /etc/cron.d/compliance-transmitter <when> is a quoted string in the format of the crontab file, where "* * * * * *" rep- resents minute [0-59] hour [0-23]...

  • Page 105: Managing Time

    Managing Time In this document, the notion of Managing Time refers not only to the concept of VelaSync's System Time, but also to reference configuration, as well as distribution 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 106: The Time Management Screen

    3.1  The Time Management Screen 3.1   The Time Management Screen 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.

  • Page 107: System Time

    3.2  System Time VelaSync’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 104 Local Clocks panel You can create multiple different Local Clocks, as needed.

  • Page 108: 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 109: Timescales

    3.2  System Time UTC: Coordinated Universal Time (Temps Universel Coordonné); your local time zone determines the difference between UTC and local time. Note that UTC is not a time zone, but a time standard, i.e. it is not used anywhere in the world as the official local time, whereas GMT (Green- wich Mean Time) is a time zone that is used in several European and African countries as the official local time.
  • Page 110 3.2  System Time Note: timescale also does not observe leap seconds. The TAI times- cale is fixed to always be 19 seconds ahead of GPS time. As of 2-Apr-2019 TAI time is 37 seconds ahead of UTC. VelaSync's System timescale is configured via the MANAGEMENT >...

  • Page 111: Manually Setting The Time

    3.2  System Time Other VelaSync outputs will be provided in the same timescale that is selected in the Sys- tem timescale field. The NTP output for network synchronization and the time stamps included in all log entries will be in the same timescale as the configured System timescale. For example, if “GPS”...
  • Page 112 3.2  System Time The time in the System Time field will default to the current date and time. To set the time, use the sliders. The time will display between the calendar and the sliders, and also next to the chosen date in the field directly above the calendar.

  • Page 113: Using Battery Backed Time On Startup

    3.2  System Time   iii. In the Oscillator Settings window, set the Holdover Timeout.)   9. Check on the HOME screen that User 0 is displayed, with a green STATUS. Note that the Disciplining State will remain yellow, once Holdover has expired, since the system time is not synchronized to a reference.
  • Page 114 3.2  System Time the system needs to be able to completely recover from a temporary power loss, or similar, without human intervention.   c. A system is used for simulation or testing purposes, and UTC traceability is not required. The Accuracy of the Battery Backed Time … …...

  • Page 115: Timescale Offset(S)

    3.2  System Time   4. Click the Submit button. 3.2.2   Timescale Offset(s) Timescale offsets account for fixed differences between timescales, in seconds. Timescale offsets may change because of leap seconds, see "Leap Seconds" on the next page. 3.2.2.1   Configuring a Timescale Offset To configure a timescale offset to the System Time:  ...

  • Page 116: Leap Seconds

    3.2  System Time 3.2.3   Leap Seconds 3.2.3.1   Reasons for a Leap Second Correction A Leap Second is an intercalary one-second adjustment that keeps broadcast standards for time of day close to mean solar time. Leap Seconds are required to synchronize time standards with civil calendars, thus keeping UTC time in sync with the earth’s rotation.

  • Page 117: Leap Second Alert Notification

    3.2  System Time correct for the Leap Second (unless the System Time’s timescale is configured as either GPS or TAI). 3.2.3.2   Leap Second Alert Notification VelaSync will announce a pending Leap Second adjustment by the following methods: ASCII Data Formats 2 and 7 (among other formats) from the ASCII Data option modules contain a Leap Second indicator.

  • Page 118: Configuring A Leap Second

    3.2  System Time Second"): 56, 57, 0, 1, 2, 3, 4 … 3.2.3.4   Configuring a Leap Second To manually correct the System Time for a leap second:   1. Navigate to MANAGEMENT> OTHER: Time Management. The Time Man- agement screen will be displayed. In the lower left-hand corner, the Leap Second Information panel will show if a leap second if pending.

  • Page 119: Local Clock(S), Dst

    3.2  System Time Note: The Delete button in the Edit Leap Second window will only be visible if a leap second has been set beforehand. 3.2.4   Local Clock(s), DST Local Clock feature allows for maintaining one or several local times. These times will reflect a time offset, thereby accounting for Time Zone, and DST (Daylight Savings Time) correction.
  • Page 120 3.2  System Time Note: Acceptable characters for the name include: A-Z, a-z, 0- 9, (-+_) and space.   5. In the UTC Offset field, choose a UTC Offset from the drop-down list. All of the UTC Offset drop-down selections are configured as UTC plus or minus a set number of hours.

  • Page 121: Dst Examples

    3.2  System Time March and the “DST out” date is the first Sunday of November). Australia. 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 122: Dst And Utc, Gmt

    3.3  Managing References Submit 5.  Review the changes made and click the button. The unit will display the status of the change. E x a m p l e 2 : To create a Local Clock for a VelaSync installed in the Eastern Time Zone of the US, and desir- ing the Local Clock to automatically adjust for DST (using the post 2006 DST rules for the US).
  • Page 123 3.3  Managing References References can be a GNSS receiver, or other sources delivered into your VelaSync unit via dedicated (mostly optional) inputs. It is also possible to enter a system time manually, which VelaSync then can synchronize to. In order for VelaSync to declare synchronization, it needs both a valid 1PPS, and Time ref- erence.

  • Page 124: Configuring Input Reference Priorities

    3.3  Managing References Title Reference Frequency External Frequency input GNSS GNSS input 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 VelaSync–...
  • Page 125 3.3  Managing References   1. Navigate to MANAGEMENT > OTHER: Reference Priority.   1. On the HOME screen, click the GEAR icon in the Reference Status panel:   2. The Configure Reference Priorities screen will display. Reference Priority screen is divided into 3 areas:  ...
  • Page 126 3.3  Managing References   4. In the Add Reference window, enter: Priority Level: Assign a priority to the new reference. Time: Select the time reference. PPS: Select the PPS reference. Enabled: Check this box to enable the new reference.   5. Click Apply or Submit.

  • Page 127: The "Local System" Reference

    3.3  Managing References   4. Click Submit. Resetting Reference Priorities to Factory Defaults To reset all references in the Reference Priority table to their factory default priorities:   1. Navigate to the Configure Reference Priorities screen via MANAGEMENT > OTHER: Reference Priority menu.

  • Page 128: The "User/User" Reference

    3.3  Managing References When the Time reference is configured as Local System, VelaSync's System Time is considered a valid reference, as long as the external 1PPS input reference is valid. Vice versa, when the 1PPS reference is configured as Local System, VelaSync's built-in oscillator is considered a valid reference, as long as the external Time ref- erence is valid.
  • Page 129 3.3  Managing References   a. No external references are available (yet), but you need a reference for testing or setup purposes. This may be the case e.g., while waiting for a GNSS antenna to be installed.   b. No external references are required e.g., if VelaSync is used solely to synchronize computers on a network, with no need for traceable UTC-based timing.

  • Page 130: Reference Priorities: Examples

    3.3  Managing References (whichever occurs first). It then needs to be set manually and submitted again (Edit Sys- tem Time > Manual Time Set). The only workaround for this is "Using Battery Backed Time on Startup" on page 101. This will allow VelaSync to apply the User/User reference after a power-cycle without manual intervention.
  • Page 131 3.3  Managing References Example 2 – IRIG as primary reference, NTP input as backup In this use case, the objective is to use: IRIG as the primary reference input Another NTP server as backup reference Step-by-step procedure:   1. Move the reference which has “IRIG 0” in both the Time column and “IRIG 0”...
  • Page 132 3.3  Managing References Example 4 – Time set manually by the User. Other references may or may not be available Note: In order for a manually set time to be considered valid and used to syn- chronize VelaSync, a “User” needs to be created and enabled in the Refer- ence Priority table.

  • Page 133: Reference Qualification And Validation

    3.3  Managing References referred to as “Local System” time. In order for this to happen, VelaSync requires an external Time, or 1PPS reference. In other words, "Local System" cannot be both Time, and 1PPS. This makes "Local System" a legit- imate, traceable reference.

  • Page 134: The Gnss Reference

    3.3  Managing References VelaSync allows Reference Monitoring by comparing the phase data of references against the System Ontime Point. The phase values shown are the filtered phase differences between each input reference 1PPS, and the internal disciplined 1PPS. The data is plotted in a graph in real-time. The plot also allows you to display historic data, zoom in on any data range or on a specific reference.

  • Page 135: Reviewing The Gnss Reference Status

    3.3  Managing References The GNSS receiver analyzes the incoming GNSS data stream and supplies the GNSS time and 1PPS (Pulse-Per-Second) signal to VelaSync's timing system. The timing system uses the data to control the System Time and discipline the oscillator. While VelaSync’s default GNSS receiver configuration will likely be adequate for most applications, it is advisable that you review the options and change settings as needed, par- ticularly if you are experiencing poor signal reception.
  • Page 136 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 display; it contains two tabs, explained in detail below: Main [= default], and Satellite Data.
  • Page 137 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 3 • VelaSync 1232 User Manual Rev. 4...
  • Page 138 3.3  Managing References Manufacturer/Model: The manufacturer and/or model of the GNSS receiver in your VelaSync unit. Validity: Status indicator lights for TIME 1PPS signals: “On” (green) indicates a valid signal, “Off” (red) indicates that no valid signal is available. A yellow 1PPS light...
  • Page 139 3.3  Managing References 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 information about satellite constellation, satellite number, and signal strength. Letter Symbol GNSS Constellation GLONASS Galileo...

  • Page 140: 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 141: Selecting A Gnss Receiver Mode

    3.3  Managing References ® u-blox Production dates: Since 2016 Constellations: GPS, Galileo, GLONASS, BeiDou, QZSS Other characteristics: Client A-GPS option: Yes Server A-GNSS option: Yes Resurvey: Automatic, after being moved and rebooted — can be changed, see "Set- ting GNSS Receiver Dynamics" on page 132.
  • Page 142 3.3  Managing References Receiver Mode function allows the GNSS receiver to operate in either a sta- tionary mode (“Standard” or “Single Satellite” modes), or in a mobile mode envir- onment e.g., in a vehicle, ship or aircraft. Offset [ns]: to account for antenna cable delays and other latencies Receiver dynamics: to optimize performance for land, sea or air operation The ability to...
  • Page 143 3.3  Managing References Upon completion of the GNSS survey the GNSS receiver will lock-in the calculated GNSS position and will enter Standard Mode. Once in Standard Mode, the GNSS survey will only be performed again if: the unit is halted or rebooted (see "Performing a GNSS Receiver Survey"...

  • Page 144: Setting Gnss Receiver Dynamics

    3.3  Managing References 3.3.3.4   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. Caution: If you select a setting that does NOT resurvey, and subsequently relocate your unit (antenna) by more than 100 m, u-blox M8T receivers will...

  • Page 145: Performing A Gnss Receiver Survey

    3.3  Managing References Receiver Dynamics Receiver Mode Land Stationary (Resurvey) (No Resurvey) Standard Mobile (with u-blox receivers) Notes: u-blox M8T receiver now uses Land to indicate it will RESURVEY on reboot, Stationary to indicate it will not resurvey after reboot. 3.3.3.5  ...

  • Page 146: Gnss Receiver Offset

    3.3  Managing References   1. Navigate to INTERFACES > REFERENCES: GNSS   2. The survey status (ACQUIRING, COMPLETE, or progress in percent) is displayed 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 completed its ini- tialization process.

  • Page 147: Resetting The Gnss Receiver

    3.3  Managing References   3. Locate the Offset field, and enter the desired value.   4. Click Submit. Calculating cable delay The following formula can be used to calculate antenna cable delay: D = ( L * C ) / V Where: D = Cable delay in nanoseconds L = Cable length in feet...

  • Page 148: Deleting The Gnss Receiver Position

    3.3  Managing References Caution: Resetting the GNSS receiver may become necessary in the rare event of internal communication issues, and is typically ONLY required if Spectracom Technical Support advises you to execute this command. Note that resetting the GNSS receiver is not the same as "Deleting the GNSS Receiver Position"...
  • Page 149 3.3  Managing References Relocating VelaSync Delete Position command may need to be used if a VelaSync system is physically moved, and it did not self-initiate a new survey automatically. Note that neglecting to delete the old position data and discover the new position data will cause VelaSync not to go into synchronization state.

  • Page 150: Manually Setting The Gnss Position

    3.3  Managing References 3.3.3.9   Manually Setting the GNSS Position Note: This topic applies only to stationary applications , i.e. to Standard mode, or Single Satellite mode. The exact geographic position (location and elevation) of the antenna your VelaSync unit—and thus its onboard GNSS receiver—is a major factor for VelaSync to calculate an accurate System Time from the GNSS reference.
  • Page 151 3.3  Managing References   3. Under Manual Position Set accurately enter latitude, longitude (both in decimal degrees), and altitude (in meters [WGS 84]) of your GNSS antenna, VelaSync can use this data during the satellite tracking/adjustment process, which typically leads to a quicker "fix". It is recommended to enter the position as accurately as possible. Determining Your Position To determine your GNSS position, using Google Maps™:  ...

  • Page 152: 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 recommended. Apply- WGS 84 ing the standard will likely yield the most accurate elevation.
  • Page 153 3.3  Managing References   3. Under Selected Constellations, review which constellations are currently tracked, and apply your changes. Note the following: u-blox M8T receiver is capable of receiving multiple GNSS constellations simultaneously; the table below shows which combinations are possible: Galileo GLONASS BeiDou...
  • Page 154 3.3  Managing References Note: Should you select more than 3 + QZSS constellations, you will receive a Constellation Error once you click Submit (ConstError). 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 Spectracom GSG-5 or -6 Series).

  • Page 155: A-Gps

    3.3  Managing References constellation the satellite belongs to: Letter symbol GNSS Constellation GLONASS Galileo QZSS BeiDou IRNSS The number next to the letter indicates the satellite number. The number below indicates the signal strength (C/N 3.3.3.11   A-GPS A-GPS stands for Assisted GPS.
  • Page 156 3.3  Managing References   1. Navigate to INTERFACES: REFERENCES > GNSS Reference. The GNSS screen will be displayed.   2. In the GNSS Reference panel on the right, click the GEAR button next to GNSS 0.   3. In the GNSS 0 window, locate the A-GPS panel at the bottom.
  • Page 157 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. Exercise caution when using this feature, since it could negatively impact the GNSS receiver operation. Use Current System Time Apply VelaSync's currently used System time to the GNSS receiver.
  • Page 158 3.3  Managing References Caution: Do NOT use GLONASS when operating VelaSync as an A-GNSS server, since this will likely crash the A-GNSS software. Based on accessible and valid GNSS data, VelaSync generates its own ephemeris and almanac data, and stores it in RINEX files and YUMA files, respectively. Note: RINEX files (ephemeris data) must be updated no later than every 2 hours, because the ephemeris data is valid for 4 hours.
  • Page 159 3.3  Managing References Trimble RES-SMT GG receivers only: RINEX File Every: [default = 10 s] Generate YUMA once a day: If checked [default], enter the desired-time-of-day in the field YUMA File At [default = 12:00]. If unchecked, determine how often a YUMA file is generated under YUMA File Every [default=10 s;...

  • Page 160: Holdover Mode

    3.3  Managing References For almanac data: http://[IP address of your unit]/files/pub/gps/data/almanac/[YYYY]/[ZZZ]/[ZZZ].alm Where: YYYY : Year (Example: "2017"), and ZZZ: Day of year (Example: "050" for 19- February) 3.3.4   Holdover Mode When input references have been supplying input to VelaSync and input from all the ref- erences has been lost, VelaSync will not immediately declare loss of time synchronization, but first will go into Holdover mode.
  • Page 161 3.3  Managing References VelaSync will remain in Holdover mode until either:   a. Any enabled and valid input reference becomes available again: If one or more ref- erences return and are declared valid before the Holdover period has expired (even momentarily, i.e.
  • Page 162 3.3  Managing References For more information on the TFOM value and Phase Error Limit, see "Configuring the Oscillator" on page 153. Note: Changes made to the Holdover Timeout always take effect imme- diately. If VelaSync is in Holdover and the Holdover timeout is changed to a value that is less than the current time period that VelaSync has been in Hol- dover Mode, the unit will immediately declare loss of synchronization.
  • Page 163 3.3  Managing References Oscillator Phase Drift The chart below provides typical stability performance for the oscillator types that can be found in VelaSync units. These numbers are based on the oscillator being locked to a ref- erence for two weeks, but then loses GPS reception for an extended period of time, while the ambient temperature remains stable.

  • Page 164: Managing The Oscillator

    3.4  Managing the Oscillator Note: Due to Leap Seconds that are periodically inserted into the UTC and Local timescales, it is not normally recommended to exceed 30 days of Hol- dover without an external reference that can supply Leap Second inform- ation being applied (such as GNSS).

  • Page 165: Configuring The Oscillator

    3.4  Managing the Oscillator VelaSync’s internal oscillator is normally disciplined to an input reference (such as GNSS, IRIG input, 1PPS input, etc.) in order to provide the highest degree of oscillator accuracy and to account for oscillator drift. While disciplining (with a 1PPS input reference input present and valid), the oscillator’s output frequency is monitored and based on the meas- ured frequency, the oscillator is steered to maintain a very accurate 10 MHz output.
  • Page 166 3.4  Managing the Oscillator   1. Navigate to MANAGEMENT > OTHER: Disciplining.   2. Click the GEAR icon at the top of the Status panel. The Oscillators Settings win- dow will display:   3. Populate the fields: Maximum TFOM for Sync: When TFOM (Time Figure of Merit, see also "Time Figure of Merit (TFOM)"...

  • Page 167: Time Figure Of Merit (Tfom)

    3.4  Managing the Oscillator Restart Tracking: Check this box, and click Submit if you want to manually restart disciplining tracking. This option causes the disciplining algorithm to stop tracking the input ref- erence and start over (as if it was just acquired). This can be useful if there is a large phase offset between reference 1PPS and system 1PPS, as it may occur when going back into sync to the external reference after a long holdover.

  • Page 168: Monitoring The Oscillator

    3.4  Managing the Oscillator Reported TFOM Value Estimated Time Error (ETE) 1 msec < ETE <= 10 msec 10 msec < ETE <= 100 msec 100 msec < ETE <= 1 sec 1 sec < ETE <= 10 sec 10 sec < ETE <= 100 sec 100 sec <...
  • Page 169 3.4  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 VelaSync's timing state.
  • Page 170 3.4  Managing the Oscillator depending upon the type of oscillator installed and the oscillator adjustment algorithm). Current DAC Setting: Current DAC value, as determined by the oscillator dis- ciplining system. The value is converted into a voltage that is used to discipline the oscillator.

  • Page 171: Oscillator Logs

    3.4  Managing the Oscillator timing. The following graphs plot key oscillator-relevant data over time:: Phase Error Magnitude: See 1PPS Phase Error Frequency Error: See 10_MHz_Frequency_Error Scaled DAC Value: See DAC Step Oscillator Temperature, which has an effect on oscillator accuracy, and therefore can be used to interpret oscillator performance.
  • Page 172 3.4  Managing the Oscillator delete the log file, click the TRASH CAN icon, and confirm. CHAPTER 3 • VelaSync 1232 User Manual Rev. 4...

  • Page 173: System Administration

    System Administration   The following topics are included in this Chapter: 4.1  Issuing the HALT Command Before Removing Power 4.2  Rebooting the System 4.3  Hardware Tasks 4.4  Notifications 4.5  Managing Users and Security 4.6  Miscellanous Typical Configuration Tasks 4.7  Quality Management 4.8  Updates and Licenses CHAPTER 4 •...

  • Page 174: Issuing The Halt Command Before Removing Power

    4.1  Issuing the HALT Command Before Removing Power 4.1   Issuing the HALT Command Before Removing Power Gracefully shutting down VelaSync by using the HALT command offers the following advantages over shutting the unit down by interrupting the power supply: The shutdown process will be logged The System Clock will update the Real Time Clock with the latest System Time.

  • Page 175: Rebooting The System

    4.2  Rebooting the System 4.2   Rebooting the System To reboot VelaSync via the Web UI:   1. Navigate to TOOLS > SYSTEM: Reboot/Halt.   2. Select the Restart after Shutdown box in the Reboot/Halt window.   3. VelaSync will now be rebooted and be accessible again shortly thereafter. Rebooting via USB Port, Telnet, SSH, SNMP With a serial connection to the USB port, telnet connection or SSH connection, type reboot <Enter>...

  • Page 176: Removing/Installing A Hard Disk Drive

    4.3  Hardware Tasks   3. To remove the power supply module from the VelaSync unit, push the release tab to the side, and then pull the module straight out. Figure 4-1:   Power supply removal   4. Replace the failed power supply module with a replacement unit. Note: Only use the approved type of power supply, for more inform- ation, see...
  • Page 177 4.3  Hardware Tasks Proceed as follows: Removing the bezel Remove the front bezel from the chassis, by unlocking it with the key, then pressing the red release knob, then removing the bezel with both hands. While the bezel is removed, check if the filter requires cleaning or replacement. Figure 4-2:  ...

  • Page 178: Notifications

    4.4  Notifications Caution: In order to maintain proper airflow, each HDD carrier must always be re-installed into the unit, even if empty. remove an HDD from its carrier, loosen the three screws on either side. install an HDD into a carrier, insert it into the carrier with its PCB facing down.

  • Page 179: Configuring Notifications

    4.4  Notifications Note: Whether or not notifications are enabled/disabled for a given event, the occurrence of the event is always logged. All available VelaSync events that can generate a notification to be sent are located under different tabs in the Notification Events panel: Timing, GPS, and System. The VelaSync Events that can automatically trigger a notification are listed in the Event column.
  • Page 180 4.4  Notifications Events panel, offering three tabs: Timing: Events for Sync Status and Holdover, Frequency error, Input references and the internal oscillator. GPS: Events related to the GNSS receiver, including antenna cabling, tracking less than the minimum number of satellites and GNSS receiver faults.

  • Page 181: Notification Event Types

    4.4  Notifications Note: Each event can be configured with the desired email address that is specific to just that one event only. Note that only one email address can be specified in each Email Address field. For each event choose the notification you want and an email address – if any – to which you want the notification to be sent.

  • Page 182: System Tab: Events

    4.4  Notifications Too Few GPS Sat, Major, Cleared GPS Antenna Problem GPS Antenna OK GPS Receiver Fault GPS Receiver Fault Cleared Under the GPS Events tab, you can also configure Minor Major Alarm Thresholds for GNSS fault events; see "Configuring GPS Notification Alarm Thresholds" below.
  • Page 183 4.4  Notifications and for SAASM units, the minimum number of satellites is normally 4 (four). Hence, it would be prudent to set the Minor Alarm Threshold to 8, and the Major Alarm Threshold to   Note: While GPS Notification Alarms can be used in Mobile GNSS receiver mode, it is not advisable.

  • Page 184: Setting Up Snmp Notifications

    4.4  Notifications 4.4.4   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 > OTHER: Notifications.   2. In the Actions panel, click SNMP Setup.
  • Page 185 E x a m p l e I : S M T P i n t e r f a c e t o M S E x c h a n g e set smtp=outlook.office365.com set smtp-auth-user=ryan.johnson@orolia.com> set from="ryan.johnson@orolia.com"...
  • Page 186 4.4  Notifications set smtp-auth-user=<user name, example user_xyz123@gmail.com> set smtp-auth-password=<password> set smtp-auth=login   5. Click the Submit button at the bottom of the window.   6. To test your settings: In the Test Email Address field, enter an email address. Click the Send Test Email button.

  • Page 187: Managing Users And Security

    4.5  Managing Users and Security 4.5   Managing Users and Security 4.5.1   Managing User Accounts Users need to authenticate as the login to VelaSync. The system administrator is respons- ible for maintaining a list of user accounts (user names, passwords etc.) via the MANAGEMENT >...
  • Page 188 4.5  Managing Users and Security 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" accounts: Account Differences, by Menu INTERFACES Menu "user"...

  • Page 189: Rules For Usernames

    4.5  Managing Users and Security 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. Reference Priority: "user" can access this page and modify settings. Notifications: "user" can access this page and modify settings. Time Management: "user"...
  • Page 190 4.5  Managing Users and Security the user account: VelaSync units are shipped with two default accounts:   i. The "administrator" account (spadmin), and   ii. The "factory" service account (spfactory). Additional accounts may be added and deleted as desired. The number of accounts that can be setup is virtually unlimited.
  • Page 191 4.5  Managing Users and Security To add a user account:   1. Enter a Username. (For rules, see "Rules for Usernames" on page 177.)   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 192: Managing Passwords

    4.5  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 the Pass- word field and confirm it in the...

  • Page 193: The Administrator Password

    4.5  Managing Users and Security click Submit.   4.5.2.2   The Administrator Password admin123 The factory default administrator login password value of can be changed from the default value to any desired value. If the current password is known, it can be changed using the VelaSync Web UI.

  • Page 194: Lost Password

    4.5  Managing Users and Security   3. In the Old Password field, type the current password.   4. In the New Password field, type the new password. Note: The new password can be from 8 to 32 characters in length.  ...
  • Page 195 4.5  Managing Users and Security   3. Click the CHANGE button.   4. In the Add or Change User window:   1. Enter a new password. Note: The new password can be from 8 to 32 characters in length.   2. Confirm the new password.  ...

  • Page 196: Web Ui Timeout

    4.6  Miscellanous Typical Configuration Tasks 4.5.3   Web UI Timeout For security reasons, the Web UI will automatically timeout after a set number of minutes, i.e. you will be logged out by the system, regardless of activity, and need to actively login again.

  • Page 197: Creating A Login Banner

    4.6  Miscellanous Typical Configuration Tasks 4.6.2   Creating a Login Banner A login banner is a customizable banner message displayed on the login page of the VelaSync Web UI. The login banner can be used, for example, to identify a unit. Figure 4-4:  ...

  • Page 198: Show Clock

    4.6  Miscellanous Typical Configuration Tasks access.   6. To test your new banner, click Apply to see a preview at the bottom of the window. OR, click Submit, and log out of the Web UI, and back in so as to see the banner on the actual login page.

  • Page 199: Synchronizing Network Pcs

    4.7  Quality Management   1. Navigate to TOOLS > SYSTEM: Show Clock:   2. To return to the standard Web UI, click Home. 4.6.4   Synchronizing Network PCs Frequently, network PCs have to be synchronized to VelaSync via the Ethernet port, using NTP (Network Time Protocol).
  • Page 200 4.7  Quality Management Status Monitoring via the HOME Screen HOME screen of the VelaSync Web UI provides a system status overview (see also "The Web UI HOME Screen" on page 13). HOME screen is divided into four panels: System Status panel Reference—Indicates the status of the current synchronizing reference, if any.
  • Page 201 4.7  Quality Management Temperature—The current board temperature will be displayed here. Reference Status panel REFERENCE: Indicates the name type of each reference. These are determined by the inputs set up for the VelaSync PRIORITY: Indicates the priority of each reference. This number will be between 1 and 15.

  • Page 202: Ethernet Monitoring

    4.7  Quality Management Status Monitoring via the System Monitor Screen To display status information pertaining mainly to VelaSync's current hardware status, nav- igate to TOOLS > SYSTEM > System Monitor. The information provided on the System Monitor Screen is subdivided into three panels: System Status panel This is identical with the HOME screen "System Status panel"...

  • Page 203: Ntp Status Monitoring

    4.7  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 displayed in...

  • Page 204: Monitoring The Oscillator

    4.7  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 con- tains the following information: Selected Ref—The reference VelaSync is currently using.
  • Page 205 4.7  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 VelaSync's timing state.
  • Page 206 4.7  Quality Management depending upon the type of oscillator installed and the oscillator adjustment algorithm). Current DAC Setting: Current DAC value, as determined by the oscillator dis- ciplining system. The value is converted into a voltage that is used to discipline the oscillator.

  • Page 207: Logs

    4.7  Quality Management timing. The following graphs plot key oscillator-relevant data over time:: Phase Error Magnitude: See 1PPS Phase Error Frequency Error: See 10_MHz_Frequency_Error Scaled DAC Value: See DAC Step Oscillator Temperature, which has an effect on oscillator accuracy, and therefore can be used to interpret oscillator performance.
  • Page 208 4.7  Quality Management No longer in Holdover: Input references were lost at one point (or declared not valid), but have since been restored OR the Input references were not restored before the Holdover period expired (Time Sync alarm is asserted). Sync: VelaSync is synchronized to its selected Time and 1PPS reference inputs.
  • Page 209 4.7  Quality Management Under-current indication < 8 mA Over-current indication > 80 mA Note: This alarm condition will also be present if a GNSS antenna splitter that does not contain a load to simulate an antenna being present is being used.
  • Page 210 4.7  Quality Management The NTP throughput statistics data can be utilized to calculate mean values and the stand- ard deviation. Example log entries include: Synchronized to (IP address), stratum=1: NTP is synchronizing to another Stratum 1 NTP server. ntp exiting on signal 15: This log entry indicates NTP is now indicating to the net- work that it is a Stratum 15 time server because it is not synchronized to its selected reference.
  • Page 211 4.7  Quality Management Every hourly entry in the log also contains a quality value, represented by “Q= xxxx” (where x can be any number from 0000 through 3600). The Qualification log records how many satellites were tracked over a given hour. If for every second of the hour a tracked satellite was in view, the Quality value will equal 3600.

  • Page 212: The Logs Screen

    4.7  Quality Management condition (an open or short exists in the GNSS antenna cable, or the GNSS antenna is not connected to VelaSync). The receiver will attempt to continue the normal acquisition and tracking process regardless of the antenna status. GR antenna ok: The antenna coax cable was connected at this time or an open or short in the antenna cabling was occurring but is no longer being detected.

  • Page 213: Saving And Downloading Logs

    4.7  Quality Management   1. From the TOOLS drop-down menu, select the desired Logs category (for example, “Alarms”, or “Events”) from the right-hand column. 4.7.2.4   Saving and Downloading Logs The VelaSync Web UI offers a convenient way to save, bundle, and download all logs in one simple step.

  • Page 214: Setting Up A Remote Log Server

    4.7  Quality Management Saving and Downloading the Oscillator Log The oscillator status log captures oscillator performance data, such as frequency error and phase error. The data can be retrieved as a comma-separated .csv file that can be read and ® edited with a spreadsheet software, such as Microsoft Excel .
  • Page 215 4.7  Quality Management   3. Enter the IP address or host server name (e.g., “MyDomain.com”) you want to use as a remote log server.   4. Click the Submit button.   5. Your remote log server will appear in the Remote Log Server panel.

  • Page 216: Clearing All Logs

    4.8  Updates and Licenses 4.7.2.6   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:  ...
  • Page 217 4.8  Updates and Licenses Downloading Logs" on page 201.) To free up disk space:   a. Delete old log files: Tools > Upgrade/Backup > Disk Status > Clear All Logs.   b. Delete old statistics files: [~] > Clear All Stats.  ...
  • Page 218 4.8  Updates and Licenses Note: In the event that the update failed, see "Troubleshooting Software Update" on page 214. CHAPTER 4 • VelaSync 1232 User Manual Rev. 4...

  • Page 219: Appendix

    Appendix   The following topics are included in this Chapter: 5.1  Troubleshooting 5.2  Command-Line Interface 5.3  IRIG Standards and Specifications 5.4  Choosing a GNSS Antenna Location 5.5  Maintenance and Service 5.6  Product Registration 5.7  Links to External Information 5.8  Technical Support 5.9  Return Shipments 5.10  License Notices 5.11  List of Tables...

  • Page 220: Troubleshooting

    APPENDIX 5.1   Troubleshooting This section is intended to assist you with troubleshooting VelaSync. The WebUI provides status information that can be used to help troubleshoot failure symp- toms that may occur. ® Please also consult the OEM documentation for Supermicro™ SuperO SuperServer 5018R-WR which can be found online under: https://www.supermicro.com/manuals/superserver/1U/MNL-1771.pdf...

  • Page 221: Troubleshooting: System Configuration

    APPENDIX When the Timing System has just booted-up and has not yet synced to a ref- erence. When all input references were lost and Holdover Mode has since expired. Timing System Error: A problem has occurred in the Timing System. Contact Spec- tracom technical support if the error continues.

  • Page 222: Troubleshooting Via Web Ui Status Page

    APPENDIX Verify Current Status Indication Troubleshooting LEDs on Green “Good link” VelaSync ICMP test 1) Verify one end of standard network cable is network is not solid green is failing. VelaSync connected to VelaSync’s Ethernet port and connector is not connected to other end is connected to a hub/switch.
  • Page 223 APPENDIX Web UI Page loc- Current Status Indication Troubleshooting ation HOME page, Sys- SYNC indicator is not VelaSync is in All available Input References have “lit” (not Green).HOLD Holdover been lost. The Reference Status tem Status panel, indicator is “lit” mode—OR—...

  • Page 224: Troubleshooting Gnss Reception

    APPENDIX Web UI Page loc- Current Status Indication Troubleshooting ation MANAGEMENT/ Cannot login or access The following This message is displayed when any the Web UI. error message value has been added to the Net- NETWORK page is displayed: work Access Rules table and your “Forbidden PC is not listed in the table as an You don’t have...

  • Page 225: Troubleshooting Hardware Issues

    APPENDIX For additional information on troubleshooting GNSS reception issues with VelaSync, here please refer to the GNSS Reception Troubleshooting Guide, available on the Spec- tracom website. 5.1.6   Troubleshooting Hardware Issues Failure Mode Failure Mode Failure Mode Symptom Diagnosis Resolution "Replacing Info LED on front panel blinks One of the two...

  • Page 226: Troubleshooting Software Update

    APPENDIX   1. The PC(s) must be routable to VelaSync. Make sure you can access VelaSync Web UI from a PC that is not syncing. If the PC cannot access the Web UI, a network issue likely exists. Verify the network configuration.  ...

  • Page 227: Command-Line Interface

    APPENDIX 5.2   Command-Line Interface A terminal emulation program is used to emulate a video terminal, so as to access VelaSync's CLI (Command-Line Interface) remotely via a serial cable. This may be required if no other means of remotely accessing VelaSync are available, for example if Ethernet ports are used otherwise or have been disabled (e.g., for security reasons).

  • Page 228: Cli Commands

    APPENDIX   4. Using the Terminal window, you can now submit commands. 5.2.2   CLI Commands VelaSync features a suite of command-line interface (CLI) commands that can be used to configure parameters and retrieve status information or log files via a remote connection, using the telnet or ssh (if enabled) protocol.
  • Page 229 APPENDIX Command Description defcert Used to create a new Spectracom self-signed SSL certificate for HTTPS in case of expiration of the original certificate dhcp4get Displays whether DHCP is enabled dhcp4set Used to enable or disable DHCP dns4get Displays the configured DNS servers dns4set Used to configure the DNS servers dhcp6get...
  • Page 230 APPENDIX Command Description Used to set IPv4 Ethernet port settings information (IP address net mask and ip4set gateway) Used to add IPv6 Ethernet port settings information (IP address net mask and ip6add gateway) ip6del Used to delete IPv6 IP address ip6get Used to obtain the IPv6 IP address iptables...
  • Page 231 APPENDIX Command Description radius server list Lists radius servers radius server add <host> <port> <key> <timeout> Adds radius server radius server del <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 release4...

  • Page 232: Irig Standards And Specifications

    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 syncstate Display timing system synchronization state sysupgrade Performs system upgrade using the update bundle provided testevent Generates SNMP events in the enterprise MIB tfomget...

  • Page 233: Irig Carrier Frequencies

    APPENDIX Note that all IRIG outputs has its own available ‘offset’ capability, which is configurable via VelaSync’s Web UI, to help account for cabling and processing delays of the device each output is connected with. 5.3.2   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.
  • Page 234 APPENDIX Time Frame Format Encoding Modulation Carrier Coded Expressions Bit rate Interval IRIG-A A133 10 kHz , SBS 1000 0.1 sec IRIG-A A134 10 kHz , BCD , CF 1000 0.1 sec YEAR and SBS IRIG-A A135 10 kHz , BCD , and 1000 0.1 sec...
  • Page 235 APPENDIX Time Frame Format Encoding Modulation Carrier Coded Expressions Bit rate Interval IRIG-B B127 1 kHz , BCD , and 100 pps 1 sec YEAR IRIG-E IRIG-E E000 DCLS , CF and SBS 10 pps 1 sec IRIG-E E001 DCLS , CF 10 pps 1 sec...
  • Page 236 APPENDIX Time Frame Format Encoding Modulation Carrier Coded Expressions Bit rate Interval IRIG-E E125 1kHz , BCD , and 10 pps 10 sec YEAR IRIG-E E126 1kHz , BCD 10 pps 10 sec YEAR IRIG-E E127 1kHz , BCD , and 10 pps 10 sec YEAR...

  • Page 237: Irig B Output

    APPENDIX 200-04 incorporated the year information after P5 and reduced the allocated control bits to 18 for format B and 36 for format E. Note: DCLS is DC Level Shifted output, pulse width modulated with a pos- ition identifier having a positive pulse width equal to 0.8 of the reciprocal of the bit rate, a binary one (1) having a positive pulse width equal to 0.5 of the reciprocal of the bit rate and a binary zero (0) having a positive pulse width equal to 0.2 of the reciprocal of the bite rate.
  • Page 238 APPENDIX 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 figure 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 239 APPENDIX formats, the least significant bit occurs first. All unused Control Functions are filled with a space (Binary 0). SBS: Word begins at index count 80. Seventeen Straight Binary Coded elements occur with a position identifier between the 9th and 10th binary coded elements. Least significant digit occurs first.

  • Page 240: Irig E Output

    APPENDIX C.F. Element # Digit # Function Space Space PID P6 Position Identifier Years Units Y1 Years Units Y2 Years Units Y4 Years Units Y8 Space Years Tens Y10 Years Tens Y20 Years Tens Y40 Years Tens Y80 PID P7 Position Identifier Space Space Space...
  • Page 241 APPENDIX Time frame: 10 seconds. Code Digit Weighting: Binary Coded Decimal time of year. Code world - 26 binary digits. Tens of seconds, minutes, hours, and days. Recycles yearly. Code Word Structure: BCD word tens of seconds digits begin at index count 6. Bin- ary coded elements occur between position identifier elements P0 and P5 (3 for seconds, 7 for minutes, 6 for hours, and 10 for days) until the code word is complete.
  • Page 242 APPENDIX Code digit (Binary 1): 50 millisecond duration. Position identifier: 80 millisecond duration. Reference marker: 80 millisecond duration, 1 per 10 seconds. The reference marker appears as two consecutive position identifiers. The second position identifier or ref- erence marker is the on-time point for the succeeding code word. Figure 5-2:  ...
  • Page 243 APPENDIX complete. An index marker occurs between the decimal digits in each subword to provide separation for visual resolution. The least significant digit occurs first. The BCD code recycles yearly. Forty-five control functions occur between position identifiers P and P .
  • Page 244 APPENDIX BIT No. CF ELEMENT No. FUNCTION SPACE SPACE SPACE SPACE 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...

  • Page 245: Irig Output Accuracy Specifications

    APPENDIX 5.3.5   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 30 ns  ...
  • Page 246 APPENDIX Regarding the selection of a suitable antenna location, the following recommendations generally apply: clear view of the sky down to the horizon in all directions is recommended for the most optimal satellite reception. The mounting location of the external GNSS antenna should be free of objects that could obstruct satellite visibility from straight overhead to within 20 degrees of the horizon in all directions.

  • Page 247: Maintenance And Service

    APPENDIX If a noticeable decrease in sensitivity (resulting in weak signal strengths) and/or very few satellites being tracked is noted, try repositioning the anten- nas to improve the satellite reception. Mount the antenna at the desired location. Connect the supplied cable to the antenna. Take appropriate lightning precautions as necessary.

  • Page 248: Links To External Information

    APPENDIX Upon initial start of the VelaSync Web UI, 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 Spectracom website register.spectracom.com 5.7   Links to External Information To learn more about the following hardware-related subjects, see the Server OEM User's https://www.supermicro.com/manuals/superserver/1U/MNL-1771.pdf...

  • Page 249: Technical Support

    APPENDIX 5.8   Technical Support "Support" page To request technical support for your VelaSync unit, please go to the the Spectracom Corporate 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 numbers listed below.

  • Page 250: License Notices

    APPENDIX When contacting Technical Support, please be prepared to provide your equipment serial number(s) and a description of the failure symptoms or issues you would like resolved. Freight to Spectracom is to be prepaid by the customer.   Note: Should there be a need to return equipment to Spectracom, it must be shipped in its original packing material.
  • Page 251 APPENDIX We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software. Also, for each author’s protection and ours, we want to make certain that everyone understands that there is no warranty for this free software.
  • Page 252 APPENDIX does not normally print such an announcement, your work based on the Program is not required to print an announcement.) These requirements apply to the modified work as a whole. If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works.
  • Page 253 APPENDIX 5. You are not required to accept this License, since you have not signed it. However, nothing else grants you permission to modify or distribute the Program or its derivative works. These actions are prohibited by law if you do not accept this License. Therefore, by modifying or distributing the Pro- gram (or any work based on the Program), you indicate your acceptance of this License to do so, and all its terms and conditions for copying, distributing or modifying the Program or works based on it.

  • Page 254: Openssh

    APPENDIX the Free Software Foundation, write to the Free Software Foundation; we sometimes make excep- tions for this. Our decision will be guided by the two goals of preserving the free status of all deriv- atives of our free software and of promoting the sharing and reuse of software generally. NO WARRANTY 11.
  • Page 255 APPENDIX DES is now external, in the OpenSSL library GMP is no longer used, and instead we call BN code from OpenSSL Zlib is now external, in a library The make-ssh-known-hosts script is no longer included TSS has been removed MD5 is now external, in the OpenSSL library RC4 support has been replaced with ARC4 support from OpenSSL Blowfish is now external, in the OpenSSL library...
  • Page 256 APPENDIX THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES ARE DISCLAIMED. IN NO EVENT SHALL CORE SDI S.A. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR MISUSE OF THIS SOFTWARE. Ariel Futoransky <futo(at)core-sdi.com><http://www.core-sdi.com>...

  • Page 257: Openssl

    APPENDIX DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  • Page 258 APPENDIX 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. All advertising materials mentioning features or use of this software must display the following acknowledgment: "This product includes software developed by the OpenSSL Project for use in the OpenSSL Toolkit.
  • Page 259 APPENDIX 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. All advertising materials mentioning features or use of this software must display the following acknowledgement: "This product includes cryptographic software written by Eric Young ( (at)cryptsoft.com )"...
  • Page 260 APPENDIX Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
  • Page 261 APPENDIX This distribution may include materials developed by third parties. Sun, Sun Microsystems, the Sun logo and Solaris are trademarks or registered trademarks of Sun Microsystems, Inc. in the U.S. and other countries. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.

  • Page 262: List Of Tables

    APPENDIX 5.11   List of Tables Table 1-1:  Oscillator accuracies Table 1-2:  1 PPS output accuracy Table 1-3:  Spectracom safety symbols Table 2-1:  Subnet mask values Table 2-2:  Adapter pinout, timing connector Table 2- 3:   Pinout, basic breakout cable (unspecified pins in the table are not connected) Table 2-4:  Pinout, premium breakout cable (unspecified pins are not connected in the cable)

  • Page 263: Document Revision History

    First-generation VelaSync (part number 1232-xxxx-xxxx) manual. 2018   Added reference monitoring, VLAN support. Specifications errata. Branding Sept changes. 2018   Updated naming scheme, images and Orolia branding. Oct 2018   Added Compliance commands, errata Apr 2019   VelaSync 1232 User Manual...
  • Page 264 BLANK PAGE. VelaSync 1232 User Manual...
  • Page 265 Browser support    A-GPS    Access control    Cable delay    Adapter cable, timing Chassis    interface    Chipset    Alarm threshold, GPS Noti- fication Alarm       Command-line interpreter Ancillary kit       contact, Spectracom Antenna, GPS       Antenna, GPS, location   ...
  • Page 266 INDEX enable DHCP IP addresses, default       Engine Id IPMI       EST API IPv4       Estimated Time Error IRIG    output accuracy       Ethernet Standards    configuration IRIG Carrier Frequencies       Ethernet connection    Keys, host   ...
  • Page 267 INDEX Primary Navigation menu    PRISMA Compliance    Private keys, SSH    Netmask    Public keys, SSH    Network port, enabling    Network services    Network setup    Notifications    Rack installation       Rack mounting    Peers 75-76    RAID   ...
  • Page 268 INDEX Server management Terminal emulator       Setup, advanced TFOM       Setup, BIOS Timeout       Setup, server Timeout, Web UI, automatic       SFTP Troubleshooting       Shipment, return    Show Clock    Single satellite GNSS receiver Unicast   ...

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