Arbiter Systems 1205B Operation Manual
Gnss synchronized clock
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Summary of Contents for Arbiter Systems 1205B
- Page 1 MODEL 1205B/C MODEL 1206B/C GNSS SYNCHRONIZED CLOCK OPERATION MANUAL ARBITER SYSTEMS, INC. PASO ROBLES, CA 93446 U.S.A. WWW.ARBITER.COM...
- Page 3 Description This manual is issued for reference only, at the convenience of Arbiter Systems. Reasonable effort was made to verify that all contents were accurate as of the time of publication. Check with Arbiter Systems at the address below for any revisions made since the original date of publication.
- Page 4 The responsibility of Arbiter Systems under this warranty is limited to repair or replacement, at Arbiter Systems’ option, of any product found to be defective. Arbiter Systems shall have no liability under this warranty unless it receives written notice of any claimed defect.
- Page 5 Using a Surge Arrestor Appendix B CE Mark Certification Appendix C Creating a Self-Signed Certificate Appendix D Creating a Custom Serial Broadcast Index Copyright Arbiter Systems Incorporated December 2022. All rights reserved. International copyright secured. Reorder Number: AS0100300 Printed Document: PD0051500 Rev. C...
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Page 6: Table Of Contents
Table of Contents Chapter 1 Getting Started ..........................14 1.1 Overview ..............................14 1.2 Security and Performance Advantages ....................... 14 1.3 Standard Features ............................14 1.4 Standard Accessories ..........................15 1.4.1 Handling Precautions .......................... 15 1.4.2 Unpacking and Locating Accessories ....................15 1.4.3 Removing Rackmount Ears ........................ - Page 7 4.2 Operating Modes ............................32 4.2.1 Learn and Normal Modes ........................32 4.2.2 Normal Mode Operation and Re-entry ....................32 4.2.3 Faults and Alarms ..........................32 4.3 Time/Date Key Displays ..........................33 4.3.1 Time and Date Display, UTC ....................... 33 4.3.2 Time of Year Display, UTC ........................
- Page 8 5.3.13 Configure Standard Relay ........................52 5.3.14 Network Status ..........................53 5.3.15 Network Configuration ........................54 5.3.16 Analog Input over IP........................... 55 5.3.17 Serial Port Communication Settings ....................56 5.3.18 Programmable Pulse Output Settings....................57 5.3.19 Open Drain, High Voltage Switching ....................58 5.3.20 Modulated IRIG-B ..........................
- Page 9 9.2.2 1 Pulse-Per-Second (1 PPS) ......................83 9.2.3 Programmable Pulse (PROG PULSE) ....................83 9.2.4 DCF77 Time Signal ..........................84 9.3 Multi-Function Relay Contacts ........................85 9.4 Analog Timing Output – Modulated IRIG-B ....................85 9.5 RS-232C/485 Ports ............................ 85 9.5.1 Selecting and Starting a Broadcast ......................
- Page 10 11.2.4 Position Accuracy ..........................105 11.2.5 Satellite Tracking ..........................105 11.2.6 Acquisition ............................105 11.3 I/O Configuration ............................ 106 11.3.1 I/O Connectors ..........................106 11.3.2 Standard Output Signals ........................106 11.3.3 Input Functions ..........................106 11.3.4 Event Input Timing and 1 PPS Deviation ..................106 11.3.5 SPDT Relay Specifications .......................
- Page 11 D.1. Introduction ............................. 119 D.2. Installing a Custom String ........................119 D.3. Constructing a Custom String ........................119 D.3.1 Custom Broadcast Character Set ....................120 D.4. True/False Condition ......................... 121 D.5. Ordinal Condition ..........................121 D.5.1 Using Ordinals and Conditionals ....................121 D.6.
- Page 12 Figure 1-1 Packaging of Accessories ......................15 Figure 1-2 Rack-Mount Ear Locations ....................... 16 Figure 2-1 Model 1205B/C Front Panel View .................... 17 Figure 2-2 Model 1206B/C Front Panel View .................... 17 Figure 2-3 Keypad and Annunciator LEDs ....................18 Figure 2-4 Model 1205B/C Rear Panel View ..................
- Page 13 Figure 6-7 Reboot the System Using SSH....................73 Figure 6-8 Arbiter Contact Information Using SSH..................73 Figure 6-9 Firmware Update Log Page Using SSH ................... 74 Figure 9-1 IRIG-B Waveforms ........................82 Figure 9-2 DCF77 Timing Diagram – see Marker Details ................84 Figure 9-3 300-Volt FET with Pull-Down Resistor ..................
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Page 14: Chapter 1 Getting Started
EPS technology. Consult this document for all necessary information for configuring and operating these two models. The 1205B and 1206B do not have a large LED time/date display, and the 1205C and 1206C have a second large LED time/date display. -
Page 15: Standard Accessories
1.4 Standard Accessories These are the included components and accessories shipped with the clock. • 1205B/C or 1206B/C GNSS Synchronized Clock • Choice of internal power supply(s) • Antenna cable assembly: 50 feet of RG-6 cable with type F connectors •... -
Page 16: Removing Rackmount Ears
1.4.3 Removing Rackmount Ears Each clock comes with pre-installed rack-mount ears suitable for mounting in a 19-inch rack. The rack-mount ears may be removed if not needed. Each rack-mount ear has two (2) M5x10mm flat head screws attaching it to the clock. The clock is shipped with a bag labeled “AS0105000 Cover Screws”... -
Page 17: Chapter 2 Front And Rear Panels
This chapter identifies the connectors, controls, and displays found on the front and rear panels. Figures 2.1 and 2.2 illustrate the front panels of the 1205B, 1205C, 1206B and 1206C clocks. “C” clocks have a large LED display on the left side of the front panel. Models 1206B and 1206C have air vents at the lower right of the front panel. -
Page 18: Front Panel Controls And Indicators
2.2 Front Panel Controls and Indicators All clocks have eight annunciator LED’s, a two-line by twenty-character LCD and eight-button keypad; the Model 1205C and 1206C add a six-character, LED time/date display for greater visibility. Most keys are informational only, except for the front-panel backlight control. The SETUP key allows users to view the clock configuration if permitted under security settings. -
Page 19: Led Status Indicators
GNSS antenna cable, and all input and output connections on these clocks. Figure 2-4 and Figure 2-5 illustrate the rear panels of the Model 1205B/C and Model 1206B/C. Listed below are the connectors grouped according to general clock functions, from left to right. -
Page 20: Power Inlet
Surge Withstand Protect Circuitry (SWC), and inlet supply range of 85 Vac to 264 Vac, 47 Hz to 440 Hz for the Model 1205B/C and 47 Hz to 63 Hz for the Model 1206B/C. The dc range for both products is 110 Vdc to 370 Vdc, <... -
Page 21: Antenna Input
2.4 Antenna Input Female Type F, GNSS antenna input, connector. This connector also supplies 5 Vdc through the cable to energize the antenna and inline preamplifier, if installed. For further information, see Chapter 3. Figure 2-8 Rear Panel Antenna Inlet Connector While the antenna draws about 29 mA, it requires the voltage to be between 3.4 Vdc and 5.5 Vdc. -
Page 22: Specifications For Main Connector Functions
2.5.1 Specifications for Main Connector Functions • Relay: Normally Closed (NC) is shorted to Common (COM) when the clock is powered off. Normally Open (NO) contact is not connected to COM when the clock is powered off. • Event In: 5 V logic •... -
Page 23: Spdt Relay Contacts
Sections 2.6 and 11.3.5. 2.6 Optional Inputs and Outputs Space for up to three optional modules allow you to customize the Model 1205B/C or 1206B/C; called Slot A, B and C – refer to Figure 2-4, Figure 2-5, and Figure 2-12. -
Page 24: Network Connections
2.7 Network Connections All models have three Ethernet ports available for clock configuration, port management as well as serving time using NTP or PTP. The network section may be ordered with copper RJ-45 connectors, fiber optic connectors, or a mix of copper and fiber. RJ-45 connector versions have two separate link status LEDs tell you if the connection is either 10 Base-T (green) or 100 Base-T (yellow). -
Page 25: Chapter 3 Antennas And Cables
To mount the antenna, you will need a piece of 3/4-inch pipe nipple that can be attached to a solid fixture. The piece of pipe nipple should be threaded up into the antenna receptacle after connecting the antenna cable to the antenna connector. Arbiter Systems sells an antenna mounting kit that simplifies installation for a variety of locations. -
Page 26: Optional Antenna Mounting Kit, P/N As0044600
2 inches in diameter. A different clamp may be substituted for use with a larger diameter pipe. Also, the bracket may be mounted to a flat surface. For complete details on this product request installation instructions for Arbiter Systems GNSS Antenna Mounting Kit found in document number PD0024700. All metal hardware is stainless steel. -
Page 27: Verifying Antenna And Cable Operation
Figure 3-3 Antenna Mounting with AS0044600 3.2 Verifying Antenna and Cable Operation A multi-color LED, located at the base of the antenna, indicates antenna operation; green indicates proper operation (between 3.3 Vdc and 5.0 Vdc), amber indicates that the voltage is low (below 3.3 Vdc). -
Page 28: Gnss Surge Arrester, P/N As0094500
3.2.1.1 “Good” – Antenna/Cable System Performance STATUS: GOOD 4.98 V, 29 mA 3.2.1.2 “Open” – Antenna/Cable Fault STATUS: OPEN 4.98 V, 0 mA 3.2.1.3 “Short” – Antenna/Cable Fault STATUS: SHORT 0.01 V, 125 mA 3.2.1.4 Other Antenna/Cable Indications A tricolor LED at the rear panel, next to the antenna connector, also indicates status: green = normal operation, amber = low voltage or open circuit, and red = a short circuit. -
Page 29: Table 3-2 Gnss Cable Data And Accessory Information
3.4.1.6 Available Antenna Cables and Accessories for Longer Runs Arbiter Systems offers longer antenna cables for use with all models of clocks when the standard 15 m (50 ft) cable is inadequate. For RG-6 cable runs greater than 100 m (328 ft), up to 175 m (578 ft), Arbiter offers a 21 dB in-line amplifier. -
Page 30: Physical Protection
3.4.2 Physical Protection Consider common causes of physical damage when routing the antenna cable: closing doors, falling objects, foot traffic, heat and vibration. The cable is not intended for hanging in midair. Allow a sufficient bend radius to prevent kinks. Allow extra length to prevent tension on the connectors and a service loop, if a connector needs replacement. -
Page 31: Chapter 4 Startup And Operation
Should light after initializing the Learn mode. 4.1.1 Display Indication at Startup When power is applied, the LCD should indicate as follows: ARBITER SYSTEMS GNSS MODEL 1205B CLOCK COPYRIGHT © 2022 ARBITER SYSTEMS, INC TIME NOT AVAILABLE 4.1.2 Clock Time, Startup Mode... -
Page 32: Operating Modes
4.2 Operating Modes Initially, the very the first time the clock starts up it will be uninitialized. In this mode, the clock performs position fixes each second and does not keep track of antenna position and satellite information. The clock will stay uninitialized forever unless initiating the learn mode from the user interface (UI). -
Page 33: Time/Date Key Displays
4.3 Time/Date Key Displays 4.3.1 Time and Date Display, UTC Displays UTC, in the Time and Date format, as maintained by the United States Naval Observatory (USNO), as described below: 12:34:54 5 NOV 2022 NOTE: Daylight Saving Time and local offset have no effect on this display. 4.3.2 Time of Year Display, UTC Displays UTC, in Time of Year format, which differs from the previous format by replacing the date with the day of year. -
Page 34: Gnss Tracking
GNSS signals. Note that the last screen indicates that the status is good and that the voltage and current are correct for the Arbiter Systems GNSS antenna. 4.4.5 Position Display Modes At startup the clock will attempt to track satellites and compare its startup position with any geographical position information stored in memory. -
Page 35: Latitude Display
4.4.7 Latitude Display Displays the antenna latitude in degrees, minutes, seconds and fractional seconds, North or South. LATITUDE 35° 35’ 50.800” N 4.4.8 Elevation Display Displays the antenna elevation in meters and fractional meters referenced to the WGS-84 datum. ELEVATION 229.39 m WGS-84 4.5 Timing Key Displays... -
Page 36: Holdover Estimated Uncertainty
4.5.3 Holdover Estimated Uncertainty After operating for a period of 24 hours from startup, and synchronized to the GNSS, the 1205/1206 can begin providing uncertainty estimates. These values are estimates of clock accuracy when it is no longer synchronized to the GNSS, and is a statistic based on time-base processor measurements of the local oscillator. -
Page 37: Event Display
4.5.6 Event Display Press the TIMING key until reaching EVENT/DEVIATION, then press ENTER. Use the UP or DOWN keys to scroll through the available event records. Events are displayed as follows: Ch A EVENT nn ddd:hh:mm:ss.sssssss Where: nn = event number (01 to 50) ddd = day of year of the event (001 to 366) hh = hour of the event (0 to 23) mm = minute of the event (0 to 59) -
Page 38: Fault Indications
4.6.4 Fault Indications There are several faults that may be indicated on the LCD. If a fault occurs and the FAULT LED illuminates, the clock may be unreliable and the Time Quality value on the IRIG-B message is set to maximum (i.e., poorest quality). -
Page 39: Alarm Indications
4.6.4.5 Brownout Fault The brown out detector generated a reset, which would normally indicate a power supply issue. FAULT: BROWN OUT DETECTOR RESET 4.6.4.6 Power Supply Fault The clock can be configured for two power supplies: power supply A and power supply B. The fault indicates that the voltage from a configured power supply is low. -
Page 40: Network Status
4.6.6 Network Status Provides the IP addresses and hardware (MAC) addresses for all three network ports. Press ENTER to view NET1 and UP or DOWN keys to view all ports. NET2 is an example of a good link (GD). NET1 shows a bad link condition (BD). NET3 is not shown in this example. NETWORK STATUS? NET1:10.10.1.102 64:73:E2:00:00:E3 BD... -
Page 41: Chapter 5 User Interface (Ui)
Chapter 5 User Interface (UI) This chapter covers the setup and maintenance of the clock using the User Interface (hereafter called UI). Setup and maintenance are minimally available through SSH console. See Chapter 6. • Administrate directly or through LDAP. •... -
Page 42: The Ip Address
Figure 5-2 Partial View of Initial Log In Page 5.1.3 The IP Address The default configuration: NET1 is set to static (192.168.0.232). NET2 and NET3 are set to DHCP (Dynamic Host Configuration Protocol). 5.1.4 Important Configuration Change Notes These configuration changes will cause the network connection to drop: (1) changing from HTTP to HTTPS, (2) changing a Network configuration, or (3) changing a System configuration on the port which you are connected. -
Page 43: User Interface
5.3 User Interface 5.3.1 User Interface Startup Page When logging in to the UI, the opening screen should be on the Clock menu, Status tab. The information on this page cannot be edited. Figure 5-3 User Interface Startup Page... -
Page 44: Time/Date Settings
5.3.2 Time/Date Settings The Time/Date page allows you to set up the Local Time offset from UTC and the automatic Daylight Saving Time (or Summer Time) adjustments. Slew Control – Limits the speed at which timing of the 1 PPS changes at re-lock. If, for example, the clock is unlocked for a long time (e.g., off by 1 ms) and then re-locks, it will bring the timing error back to zero offset, but it will be limited to the slew control value. -
Page 45: User Interface Configuration
5.3.3 User Interface Configuration From the System menu and Configure tab, you can set up the UI for HTTP or HTTPS, enable session time outs and to respond to ping requests. WARNING: If using HTTPS, you will need to upload a PEM file. Do not upload a PEM file that has not be verified. -
Page 46: Configure Password
Figure 5-7 Configure System Password 5.3.6 Firmware Updates Use this page to upload a new firmware file to the Model 1205B/C and the Model 1206B/C. Select the Admin menu and click the Update tab. Make sure to have the new firmware update file available on your computer and click on the Choose File button. -
Page 47: Reboot System
5.3.7 Reboot System Select the Admin menu and click the Reboot tab. Next, click the Reboot button to reboot of the network system only. At the conclusion of the reboot, you will be presented with the login screen and will need to re-login to the clock. Figure 5-9 Rebooting the System 5.3.8 Configure Front Panel Elements Select the Clock menu and click on the Front Panel tab. -
Page 48: Gnss Information
5.3.9 GNSS Information Select the Time Source menu and click on the GNSS tab to view all the satellite related information, including GNSS receiver, antenna position, GPS and GLONASS contributions. Figure 5-11 GNSS System Information... -
Page 49: Antenna Information
5.3.10 Antenna Information Select the Time Source menu and click on the Antenna tab to view all of the antenna related information, including voltage setting, antenna and cable delays and active status. Figure 5-12 Antenna Information 5.3.11 Spoofing Information Select the Time Source menu and click on the Spoof tab to view all of the spoofing related information. -
Page 50: Figure 5-13 Spoofing Information
5.3.11.3 Spoofing Auto Terminate As the name suggests this feature terminates the spoofing features after a specific period (in seconds) has elapsed, regardless of the detection state. Requires the Auto Re-lock setting be enabled. 5.3.11.4 Spoofing Auto Re-Lock If disabled, the clock will never attempt to recover from a spoofing detection. Normally, if the clock sees the spoofing attack terminate it will attempt to re-lock and clear the ”alarm.”... -
Page 51: General Clock Status
5.3.12 General Clock Status Select the Clock menu and click on the Status tab to view all the time related information. This includes time data, hold over uncertainty, time status, leap seconds, alarms, power supply presence and voltage(s) and run time information. Figure 5-14 General Clock Status... -
Page 52: Configure Standard Relay
5.3.13 Configure Standard Relay Use this menu to configure the standard relay located in the large connector block shown in Figure 5-15. Select the condition(s) for activating the relay. Multiple selected relay configurations are OR’ed. Figure 5-15 Standard Relay Configuration Menu... -
Page 53: Network Status
5.3.14 Network Status Select the Network menu and click on the Status tab to view all the network related information, including IP addresses, if available, hardware addresses and activity. Figure 5-16 Network Status Page... -
Page 54: Network Configuration
Select Network menu and click on the Configure tab to view the port configuration page. Use this page to configure the Ethernet ports on the Model 1205B/C and the 1206B/C. Select any port for DHCP (Dynamic Host Control Protocol) or Static. Notice that when selecting Static that there are three additional boxes that appear to allow for setting the IP address, the Net Mask and a Gateway. -
Page 55: Analog Input Over Ip
5.3.16 Analog Input over IP The Analog Input frequency data is available over the Ethernet ports via a Telnet connection. To configure: • Navigate to the Analog Input tab of the Network Menu • Select the Mode (Off/ASCII/VORNE) • Select the Time Reference (UTC/Local) •... -
Page 56: Serial Port Communication Settings
5.3.17 Serial Port Communication Settings Configure the RS-232 and RS-485 port settings on this page. Select the I/O Block menu and click on the Serial tab to view and change the settings. Currently, the RS-485 mirrors COM1 settings. 5.3.17.1 Available COM Settings •... -
Page 57: Programmable Pulse Output Settings
5.3.18 Programmable Pulse Output Settings Use this page to configure all six of the programmable pulse outputs, or digital outputs, of the 1205 and 1206. All standard inputs and outputs are located on the large connector block. Figure 5-20 Programmable Pulse Settings Page... -
Page 58: Open Drain, High Voltage Switching
5.3.19 Open Drain, High Voltage Switching Use this menu to set up the open drain switching feature in the Model 1205 and 1206. Under the I/O Block menu, I/O Select tab, Open Drain and choose the type of open drain signal and click the Apply button. -
Page 59: Modulated Irig-B
5.3.20 Modulated IRIG-B Enable modulated IRIG-B in the I/O Block menu, I/O Select tab. Configure it in the I/O Block menu, Outputs tab. For additional information on IRIG-B, see Section 9.2.1. Figure 5-22 Modulated IRIG-B Setup Menu... -
Page 60: Optional Outputs - Slots A, B And C
5.3.21 Optional Outputs – Slots A, B and C Optional output slots A, B and C individually provide specific inputs and outputs installed at the time of order. Figure 5-23 illustrates the auxiliary programmable pulse modes that can be selected for Slot B. -
Page 61: Event Inputs And System Frequency
5.3.22 Event Inputs and System Frequency Select the I/O Block menu and click on the Inputs tab to configure and view the Inputs page information. The Analog Input provides the clock with the ability to accept either a 50 Hz or 60 Hz (±... -
Page 62: Fault Status And Configuration
5.3.23 Fault Status and Configuration Select the Clock menu and click on the Faults tab to view the fault status and configuration. Figure 5-26 Viewing the Fault Status and Configuration... -
Page 63: Configure Ptp Protocols
5.3.24 Configure PTP Protocols Select the Protocols menu and click on the PTP tab to view all available PTP configurations. Figure 5-27 Configuring PTP Operation... -
Page 64: View Ptp Status
5.3.25 View PTP Status Select the Protocols menu and click the PTP Status tab to view all PTP status information. To configure PTP click on the PTP tab. Figure 5-28 PTP Status Page... -
Page 65: Configure Ntp Protocols
5.3.26 Configure NTP Protocols Select the Protocols menu and click on the NTP tab to configure and view all available NTP related information. Figure 5-29 View and Configure NTP Operation... -
Page 66: Ntp/Ptp Uncertainty Measurements Plot
5.3.27 NTP/PTP Uncertainty Measurements Plot Select the Protocols menu and click on the Graphs tab to view the plots of time uncertainty for NTP and PTP. Time uncertainty measurements over an approximate 24-hour time period are displayed in microseconds for NTP and in nanoseconds for PTP. Figure 5-30 NTP/PTP Uncertainty Measurements... -
Page 67: Support - Contact Page And Firmware Versions
5.3.28 Support – Contact Page and Firmware Versions Use the support information below to contact Arbiter Systems. The Version tab should help you identify the versions of specific firmware elements running on your clock. Figure 5-31 Contact Support Page Figure 5-32 Version Support... -
Page 68: Support - Update Log
5.3.29 Support – Update Log The Model 1205B/C and Model 1206B/C keep a log of all the firmware updates by name and date. Figure 5-33 Update Log Support 5.3.30 Logout Terminates your session in the User Interface. -
Page 69: Chapter 6 Ssh Console Interface
Chapter 6 SSH Console Interface Chapter 6 covers the setup and maintenance of the clock using the Secure Shell (SSH), console interface. 6.1 Using the SSH Console Interface Any Secure Shell (SSH) client, like OpenSSH or PuTTY , is suggested. Make sure to select SSH and type in the device’s IP address and connect. -
Page 70: Useful Keys For Ssh Console Navigation
6.1.1 Useful Keys for SSH Console Navigation Arrow Keys – navigate up, down, left, and right – Enter accept the current selection – SPACE accept the current selection except in edit fields (same as Enter) – cancel an edit/change – Q or q select the Logout menu item Use the cursor keys to navigate the console elements. -
Page 71: Network Configuration Page
6.2.2 Network Configuration Page Configuration of each port is identical, and all ports include the same features. The hardware address is always listed. The IP address, netmask and gateway are only listed if selecting a Static IP address. VLAN ID and Priority are only visible when VLAN is checked. Figure 6-3 Network Configure Page Using SSH 6.2.3 Administration –... -
Page 72: Administration - Password
6.2.4 Administration – Password To set or change a password select the Admin menu, then the Password tab and press RETURN (or ENTER). Figure 6-5 Configure Password Using SSH 6.2.5 Administration – Firmware Update To update clock firmware using SSH select the Admin menu and then the Update tab. Choose the server where the new firmware resides, the username and file path. -
Page 73: Administration - Reboot
6.2.6 Administration – Reboot To reboot the clock using SSH select the Admin menu and then select the Reboot tab. Figure 6-7 Reboot the System Using SSH 6.2.7 Support – Contact Figure 6-8 Arbiter Contact Information Using SSH... -
Page 74: Support - Version
6.2.8 Support – Version Firmware versions are currently unavailable in the SSH console. 6.2.9 Support – Update Log Figure 6-9 Firmware Update Log Page Using SSH 6.2.10 Other SSH Console Features The previous items are representative of what the SSH Console currently features and how they function. -
Page 75: Chapter 7 Snmp Support
Chapter 7 SNMP Support This chapter reviews SNMP for the Model 1205B/C and Model 1206B/C in more detail. Simple Network Management Protocol (SNMP) was created to provide a standard for managing different networks and the devices on the networks. As such, SNMP is designed to operate on the application layer using different transport protocols (e.g., TCP/IP and UDP), making it... -
Page 76: Enabling Snmp Service And Configuring Snmp Traps
7.4.1 Enabling SNMP Service and Configuring SNMP Traps To configure SNMP, open your web browser and log in to the NTP/PTP server. Note: SNMP cannot be configured using the SSH Console. Select “SNMP” on the left and “Configure” tab at the top. 7.4.2 SNMP Configuration Reference Listed below are the configurable options available for SNMP traps. -
Page 77: Chapter 8 Ntp/Ptp Server
Chapter 8 NTP/PTP Server 8.1 General Description The NTP/PTP server provides Network Time Protocol (NTP) and Precision Time Protocol (PTP) on the three standard copper Ethernet ports or the optional Type LC fiber-optic connectors (62.5/125 µm and 50/125 µm multi-mode fiber). Contact factory for other connector types. 8.1.1 Network Time Protocol (NTP) Server The server supports NTP versions 1, 2, 3, and 4. -
Page 78: Ntp Status Display Indications
8.1.4.1 Default Port Addresses By default, the server comes configured as follows: NET1 IP address -- STATIC 192.168.0.232 Netmask 255.255.255.0 Gateway Not set NET2 IP address -- DHCP NET3 IP address -- DHCP 8.1.5 NTP Status Display Indications 8.1.5.1 GNSS Clock and Server Stabilizing During the stabilization process, the clock will display different status messages that indicate whether the server is ready to serve time. -
Page 79: Table 8-1 Ntp/Ptp Server Led Indications
NET2:10.10.1.148 64:73:E2:00:00:E4 GD NET 2 status – Good connection. The IP address of any port is visible after a network cable is connected from the network to the clock. NET3: 64:73:E2:00:00:E5 BD NET 3 status – Bad connection (cable disconnected?). 8.1.5.3 LED Indications To view the status LEDs, see the rear panel. -
Page 80: Specifications
8.1.6 Specifications 8.1.6.1 Performance < 100 µs, depending on network load and clock accuracy < 100 µs, with software assist < 100 ns, typical with hardware assist 8.1.6.2 Interface Network Three Ethernet (Version 2.0/IEEE 802.3) 10/100BT or Multi-mode SSF modules Protocols NTP, SNTP, PTP (Power Profile), UDP, ICMP, SNMP, TCP, SSH, SCP, SSL, HTTP, HTTPS DHCP... -
Page 81: Chapter 9 Main Input/Output (I/O) Module
IRIG-B is a complete serial time code that occurs once per second and, depending on the configuration, contains the day of year, hours, minutes, seconds, year and other important information. The Model 1205B/C and 1206B/C transmits (IRIG) Format B with four variations. Designation Signal Type... -
Page 82: Figure 9-1 Irig-B Waveforms
Three functional groups of bits in the IRIG-B time code are arranged in the following order: Binary Coded Decimal (BCD), Control Function (CF) and Straight Binary Seconds (SBS). The BCD group, with IEEE C37.118.1-2011 OFF, contains only time information including the seconds, minutes, hours and days, recycling yearly. -
Page 83: Pulse-Per-Second (1 Pps)
9.2.2 1 Pulse-Per-Second (1 PPS) A one pulse-per-second timing signal is very simple in concept. It is a digital bit transmitted every second with a 10-millisecond pulse width. A critical part of this signal is that it is “on time” at the rising edge when compared with the signal from the Global Navigation Satellite System (GNSS). -
Page 84: Dcf77 Time Signal
9.2.4 DCF77 Time Signal Models 1205B/C and 1206B/C can provide the DCF77 time signal as an output by choosing it from the user interface within the programmable pulse selections. The DCF77 time signal occurs once per minute and provides the year, month, day of week, calendar day, hour and minute, and various markers. -
Page 85: Multi-Function Relay Contacts
9.3 Multi-Function Relay Contacts The main I/O has one set of SPDT mechanical relay contacts that may be configured for the following functions or indications: • programmable pulse outputs • fault (internal) • alarm (external) • out of lock • clock stabilized Note that the relay lifetime is rated for a minimum of 100,000 cycles, which should govern the chosen function, especially if being used for programmable pulse. - Page 86 9.5.2.1 ASCII Standard Configures the clock to broadcast the time-of-day as ASCII standard data from any of the serial ports. Use the user interface Main I/O panel to configure settings. Output String: <SOH>ddd:hh:mm:ss<CR><LF> Where: <SOH> = start of header (ASCII 1) ddd = day of year hh = hour (0-23) mm = minutes (0-59)
- Page 87 9.5.2.3 Vorne Extended 11nn<CR><LF> Output String: 44hhmmss<CR><LF> 22±ff.fff<CR><LF> 33±s.ss<CR><LF> 34±sss.sss<CR><LF> 66hhmmss<CR><LF> 77nn.nnn<CR><LF> 88nnn.nn<CR><LF> 89nnn.nn<CR><LF> 55ddd<CR><LF> 35±ssss.sss<CR><LF> Where: 11 = minutes out of lock 44 = UTC/local time; hh = hours (0-23), mm = minutes (0-59), ss = seconds (0-59) 22 = frequency deviation 33 = time deviation* 34 = time deviation* 66 = system time;...
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Page 88: Table 9-4 Vorne Out-Of-Range Time Deviation Values
Time Deviation Range Form (b = blank) Below -999.99 -bbb.bbb -999.99 to -100.00 -sss.sss -99.99 to -10.00 -bss.sss -9.99 to -0.01 -bbs.sss +0.00 to +9.99 +bbs.sss +10.00 to +99.99 +bss.sss +100.00 to +999.99 +sss.sss Above +999.99 +bbb.bbb Table 9-4 Vorne Out-of-Range Time Deviation Values 9.5.2.4 Event Data Output String: (Local) mm/dd/yyyy hh:mm:ss.sssssss nnnAL<CR><LF>... -
Page 89: Table 9-6 Fault Indications And Definitions
Bit Wt, N Fault Bit Wt, N Fault Communications Antenna 1 8 MHz Antenna 2 Holdover/GNSS GNSS Receiver 1 WD Timer GNSS Receiver 2 Brown Out 10 400 Prog Pulse Overload Power Supply 11 800 Boot Loader Missing Table 9-6 Fault Indications and Definitions Bit Wt, N Fault Bit Wt, N... - Page 90 9.5.2.8 Year + ASCII <SOH>yyyy:ddd:hh:mm:ssQ<CR><LF> Output String: Where: <SOH> = start of header (ASCII 1) yyyy = year ddd = day of year hh = hour (0-23) mm = minutes (0-59) ss = seconds (0-59) Q = time quality space = locked maximum accuracy .
- Page 91 9.5.2.10 True Time Analog Format Sends time error and frequency error once per second in ASCII format. Output String ddd:hh:mm:ssQT±tt.tttF±f.fff<CR><LF> Where: Ddd = day of year hh:mm:ss = time of day (hours:minutes:seconds) Q = status space = locked maximum accuracy .
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Page 92: Event Input
9.6 Event Input Model 1205B/C and 1206B/C can provide event timing or 1 PPS deviation recordings, that you may broadcast over one of the COM ports. The event input feature allows you to record a 5 Vdc logic level signal, applied to the event input connection, with 0.1-microsecond resolution. -
Page 93: Accessing Data
9.6.6 Accessing Data Event data is only accessible through the user interface, or by pressing the TIMING key and viewing on the clock display, if the keypad is enabled. 9.6.7 Broadcasting Event Data For continuous viewing of event data, as they occur, set the clock to broadcast events, using the user interface. -
Page 94: Example 2: Open Drain With Voltage Source In Series
9.8.1.1 FET Specifications (IRF740S) • VDSS = 400V, max drain-source voltage • RDS(on) = 0.55Ω, max drain-source resistance • Id = 10 A, max continuous drain current (@ 25 °C) • PD = 3.1 Watts, max power dissipation Figure 9-3 300-Volt FET with Pull-Down Resistor 9.8.1.2 Logging Requirements and Circuit Notes To log an event, the Event Logger must “see”... -
Page 95: Main I/O Block Connector Description
9.8.2.2 Logging Requirements and Circuit Notes To log an event, the FET must be switched “ON,” which causes a current to flow through the large circuit, including the Event Logger. The opto-isolator detects the current and the event is recorded until the FET switches “OFF,”... -
Page 96: Connecting Outputs
Function Name Pin 1 Pin 2 Pin 3 Relay COM = 30 NC = 31 NO = 32 Event In + Input = 28 Return = 29 Signal A (+) = 26 Signal B (−) = 27 N/A Analog In B (−) pin = 25 RS-485 A (+) pin = 24... -
Page 97: Synchronizing Multiple Ied's
9.10.3 Synchronizing Multiple IED’s In many installations, timing signals are “fanned out” to several devices from a single timing output. This method makes more efficient use of the clock synchronizing capability since the clock drivers are designed to drive multiple loads. The exact number of possible loads must be determined from the input impedance of each connected IED. -
Page 98: Wire Losses
9.10.6 Wire Losses Wire losses affect the available timing signal voltage available at the IED. Wire has a certain resistivity associated with it that is determined by its metallic composition, and its resistance determined by the diameter and length. For example, single-strand, 22 AWG (bare, enamel-coated) copper wire has a resistance of approximately 16.1 ohms per 1000 feet. -
Page 99: Cable Delays
(VF), which is a percentage of the speed of light in free space, and characteristic of the specific cable. The velocity factor for the RG-6 cabling used by Arbiter Systems for GNSS antenna connections, is about 83 % of C. Most transmission lines have velocity factors in the range of 65 % to 97 %. -
Page 100: Chapter 10 Optional Inputs And Outputs
Chapter 10 Optional Inputs and Outputs Any Model 1205B/C and 1206B/C Clock can accommodate up to three separate sets of inputs or outputs to customize the unit configuration. Located between the main GNSS antenna inlet and the power supply B inlet, from one to three separate option boards may be mounted inside the clock to provide a variety of functions, including BNC, ST fiber optic and 3.5 mm terminal connectors. -
Page 101: Dual Spdt Relays
10.3 Dual SPDT Relays Two separate SPDT mechanical relays, individually programmed, including a 24-volt source at 900 mA; uses 3.5 mm terminal connectors. 10.4 Second GNSS Receiver Additionally, you may order a second GNSS receiver that will perform all the tasks of the main GNSS receiver with the exception that it will not support the advanced anti-spoofing option, which includes the anti-spoofing antenna. -
Page 102: Chapter 11 Functional Description & Technical Specifications
11.1.4 Processing Models 1205B/C and 1206B/C both operate under the same principles and use the same basic components, only they are arranged differently due to the size of the Stanford Research Systems PRS10 rubidium oscillator in the Model 1206B/C. -
Page 103: Clock Management
11.1.5 Clock Management Clock management is direct through the secure user interface. See Chapter 5 for more detail on security and logging in. 11.1.6 Network The network section is the communication path with the clock and is secured through authenticating with user credentials. -
Page 104: Optional I/O
11.1.8 Optional I/O The Optional I/O consists of up to three groups of individual functions as listed below, which are separate from the main I/O Block output connector. Choose either one, two or three separate connector blocks. See Rear Panel Configuration below for possible combinations of these connector functions. -
Page 105: Receiver Characteristics
UTC/USNO ± 100 ns peak – 1205B/C • UTC/USNO ± 40 ns peak – 1206B/C 11.2.3 Holdover Oscillator • 1 ms / 24hrs OCXO – standard – 1205B/C • 1 µs / 24hrs rubidium – 1206B/C 11.2.4 Position Accuracy •... -
Page 106: I/O Configuration
11.3 I/O Configuration 11.3.1 I/O Connectors One large terminal block for the main functions. Up to six optional BNC or ST connectors for inputs and outputs; up to 12, 24-volt terminals; up to 6 SPDT relays. Network section has three RJ-45 Ethernet (copper) and/or Type LC fiber optic ports. -
Page 107: Interface - Operator
11.4.2 Interface – Operator 11.4.2.1 8 Front Panel Status LEDs • Normal mode (green) • Learn mode (amber) • Unlocked (red) • Alarm (red) • Operate (green) • Power A (green) • Power B (green) • Fault (red) 11.4.2.2 Front Panel Menus •... -
Page 108: Options
11.4.3.3 Default Ports Port Protocol SSH Console *May be disabled DHCP DHCP 80 *May be changed HTTP NTP *If enabled SNMP *If enabled SNMP Traps *If enabled PTP Event *If enabled PTP General Message *If enabled 443 *May be changed HTTPS *If enabled 49543 *May be changed Analog Data Input over Internet Protocol (AIDoIP) *If enabled 11.4.4 Options... -
Page 109: Annunciators - Leds
11.7.1 Dimensions • Chassis, 1205B/C: 436 mm × 44 mm × 280 mm (17.2 in × 1.75 in × 11.0 in) L x H x W • Chassis, 1206B/C: 436 mm × 85 mm × 280 mm (17.2 in × 3.34 in × 11.0 in) L x H x W •... -
Page 110: Ground Block (Lug)
11.7.7 Temperature and Humidity Component Operating Nonoperating Model 1205B/C -40 °C to +65 °C -40 °C to +75 °C Model 1206B/C -40 °C to +65 °C -40 °C to +75 °C Antenna -55 °C to +65 °C -55 °C to +85 °C Antenna Cable -40 °C to +75 °C -40 °C to +80 °C... -
Page 111: Appendix A Using A Surge Arrester
Appendix A Using a Surge Arrester These instructions cover the installation of the Arbiter Systems Model AS0094500, Surge Arrester, as illustrated in Figure A.1. The AS0094500 performs two basic functions: 1. Provides a solid and reliable grounding point for the antenna system connected to a GNSS receiver. -
Page 112: Weather Sealing The Connections
GNSS reception. Consider purchasing RF cables of various standard and custom lengths manufactured by Arbiter Systems. A.2.5 Suggested Mounting Install drip loops in the cables to reduce the likelihood of moisture penetrating the device. -
Page 113: Specifications
A.3. Specifications A.3.1 Physical Dimensions Overall 59 mm × 38 mm × 18 mm (2.32 in × 1.49 in × 0.71 in) L×W×H Mounting Hole Dimensions 50 mm × 15 mm (1.969 in × 0.594 in) Mounting Hole Diameter 4 mm (0.157 in) F-Connection Dimensions 24 mm, center to center... -
Page 114: Appendix B Ce Mark Certification
Appendix B CE Mark Certification B.1.1 Introduction On the following pages contain the individual CE Mark Certifications for models covered in this manual. This includes Model 1206B/C. - Page 115 Date of Issue: July 1, 2015 Directives: 89/336/EEC Electromagnetic Compatibility 73/23/ EEC Low Voltage Safety Model Number(s): 1205B/C GNSS Synchronized Clock 1206B/C GNSS Synchronized Clock Manufacturer: Arbiter Systems, Inc. 1324 Vendels Circle, Suite 121 Paso Robles, CA 93446 − USA...
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Page 116: Appendix C Creating A Self-Signed Certificate
Appendix C Creating a Self-Signed Certificate C.1. HTTPS/SSL Certificate This appendix discusses a method of generating a PEM file for use with HTTPS. As is the case with any web server, in order to provide a secure connection via HTTPS, the Option 34 must be configured with an SSL Certificate. -
Page 117: Step 3A - Purchase A Certificate
Country Name (2 letter code) [AU]:US State or Province Name (full name) [Some-State]:California Locality Name (eg, city) [ ]:Paso Robles Organization Name (eg, company) [Widgits Pty Ltd]:Arbiter Systems, Inc. Organizational Unit Name (eg, section) [ ]:Lab Common Name (eg, YOUR name) [ ]: Email Address [ ]: techsupport@arbiter.com... -
Page 118: Step 4 - Create The Pem File
The generated file (my.crt) might look like the following: -----BEGIN CERTIFICATE----- MIICVzCCAcACCQC7uu43uMF1+jANBgkqhkiG9w0BAQUFADBwMQswCQYDVQQGEwJV ...more data... Jo+H1MXknNISZtcu/xb9gghHG42veveZSg72 -----END CERTIFICATE----- C.1.5 Step 4 - Create the PEM File Once you have a purchased a certificate, or have a self-signed certificate file, the following command will create a single PEM file including the key and the certificate from the previous steps. -
Page 119: Appendix D Creating A Custom Broadcast
Appendix D Creating A Custom Broadcast D.1. Introduction The Model 1205B/C and 1206B/C allow the user to construct and install two custom strings to be broadcast from COM1 and COM2: Custom string A from COM 1 and Custom String B from COM 2. -
Page 120: Custom Broadcast Character Set
D.3.1 Custom Broadcast Character Set Note: Conditionals can use any of the characters in Table D-1 except for Cssnn and Txx, in addition to any string characters. CONDITIONALS CANNOT BE NESTED! Character Meaning / character Cssnn Xor checksum of specified range, where ss = start location (hex value from 00 to FF) and nn = number of bytes (hex value from 00 to FF) Day of month: 01, . -
Page 121: True/False Condition
D.4. True/False Condition Command: /[ii? < t > / :< f > /] Where: ii: 01 = Locked 02 = Status change 03 = Locked with max accuracy 04 = Fault 05 = Daylight Saving Time change pending 06 = Unlocked LED status (whether Unlocked LED On/Off) <... -
Page 122: String Setup Examples And Tutorial
D.5.1.4 Conditional 03 In this condition the clock is queried for a locked condition. It answers true with a space if locked and false with a question mark if unlocked. /T01/d:/h:/m:/s/[03? /:?/]/r Binary Hex Value (worse case accuracy) 1111 Fault-clock failure, time not reliable 1011 10 seconds 1010... -
Page 123: Ascii Standard
D.6.1 ASCII Standard Desired Output: <SOH>ddd:hh:mm:ss<CR><LF> Input String Code: /T01/d:/h:/m:/s/r The input values preceded by “/” are variables from Table D-1 and have defined values. The “:” is a plain ASCII character that is not part of the variable list. D.6.2 Vorne Simplified Desired Output: 44hhmmss<CR><LF>... -
Page 124: Ascii + Year
D.6.6 ASCII + Year Desired Output: <SOH>yyyy ddd:hh:mm:ssQ<CR><LF> Input String Code: /T01/Y:/d:/h:/m:/s/{01? /:./:∗/:#/;?/}/r The ASCII + Year is identical to the ASCII + Qual but includes the four-digit year. D.7. Common ASCII Characters Listed below are a few common ASCII control characters used with the clocks. Other printable characters may be typed in as seen on a keyboard. - Page 125 Index 1-PPS deviation description, 83 measurement, 92 accessories measurement principle, 92 antenna and cable, 29 display included, 15 faults, 38 accuracy, 105 firmware version, 37 startup, 31 alarms, 19, 32 display modes altitude, 35 elevation, 35 latitude, 35 amplifier longitude, 34 antenna cable, 29 position, 34 antenna...
- Page 126 latitude, 35 serial port custom broadcast, 119 display, 19 SNMP, 75 traps, 75 learn mode, 32 specifications, 102 accuracy, 105 status indicators, 19 acquisition, 105 annunciator LEDs, 109 LEDs, 109 antenna cable, 109 logging in antenna system, 109 user interface, 41 dimensions, 109 display, 108 longitude, 34...
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