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MODEL 1201B/C
GNSS SYNCHRONIZED CLOCK
OPERATION MANUAL
1201B GNSS SYNCHRONIZED CLOCK
ARBITER SYSTEMS, INC.
PASO ROBLES, CA 93446
U.S.A.
WWW.ARBITER.COM
TIME/DATE ANTENNA
TIMING
NORMAL
LEARN
SETUP
UP
DOWN
UNLOCKED
ALARM
1201C GNSS SYNCHRONIZED CLOCK
TIME/DATE ANTENNA
TIMING
NORMAL
LEARN
UP
DOWN
SETUP
UNLOCKED
ALARM
SYSTEM
OPERATE
POWER A
ENTER
POWER B
FAULT
SYSTEM
OPERATE
POWER A
ENTER
POWER B
FAULT

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Related Manuals for Arbiter Systems 1201B

Summary of Contents for Arbiter Systems 1201B

  • Page 1 MODEL 1201B/C GNSS SYNCHRONIZED CLOCK OPERATION MANUAL 1201B GNSS SYNCHRONIZED CLOCK TIME/DATE ANTENNA TIMING SYSTEM NORMAL OPERATE LEARN POWER A SETUP DOWN ENTER UNLOCKED POWER B FAULT ALARM 1201C GNSS SYNCHRONIZED CLOCK TIME/DATE ANTENNA TIMING SYSTEM NORMAL OPERATE LEARN POWER A...
  • Page 2 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 3 Arbiter Systems under this warranty is limited to repair or replacement, at Ar- biter 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 Arrester Appendix B Options List Appendix C Self-Signed Certificate for HTTPS Appendix D CE Mark Certification Appendix E Statement of Compliance Index Copyright Arbiter Systems Incorporated July 2017 All rights reserved. International copyright secured. Publication number: PD0051300C Reorder number: AS0096700...

  • Page 6: Table Of Contents

    1.1 Model 1201B/C Security Advantages ......1.2 1201B/C Standard Features ....... .
  • Page 7 CONTENTS 3.5 Connecting Input Signals ....... . . 13 3.6 Fiber Optic Connector ........13 3.7 Option Board Space .
  • Page 8 How the Utility Software Works ......38 7.3 Model 1201B/C Security ........39 7.3.1...
  • Page 9 CONTENTS 7.18 Uploading New Firmware ....... . . 59 7.19 Setting to Factory Defaults ....... . 60 8 Front Panel Menu System 8.1 Menu System .
  • Page 10 CONTENTS 9.3.4 1 Pulse-Per-Second (1 PPS) ......83 9.3.5 Programmable Pulse (PROG PULSE) ..... . 84 9.3.6 Programmable Pulse with Open Drain, Setup .
  • Page 11 CONTENTS 11.2.13 Miscellaneous Commands ......107 11.3 Communication Port Information ......109 11.4 Custom Broadcast String Reference .
  • Page 12 CONTENTS A Using a Surge Arrester A.1 Description ......... 123 A.2 Installation .
  • Page 13 CONTENTS xiii B.10.2 Specifications ........149 B.10.3 Firmware Configuration .
  • Page 14 7.1 Utility Software, Opening Window ......38 7.2 Connecting with the 1201B/C ....... 40 7.3 Reading the 1201B/C Configuration .
  • Page 15 7.23 Uploading Firmware in the 1201B/C ......59 8.1 Model 1201B/C Keypad ........62 8.2 Main RS-232 Setup .
  • Page 16 LIST OF FIGURES B.7 Option Connector Signal Locations ......153 B.8 Startup Page ........159 B.9 System Configure Page .
  • Page 17 7.2 Option Board Descriptions ....... . 55 8.1 Model 1201B/C Menu Structure – Upper Keys ..... 61 8.2 Front-Panel Setup Menu Definitions .
  • Page 18 xviii LIST OF TABLES 11.10Short Table of ASCII Characters ......114 12.1 Relay Specifications ........118 12.2 COM1, RS-232 Port Pin Definitions .

  • Page 19: Getting Started

    Arbiter Systems, the Model 1201B/C offers two levels of ultra-stable, crystal holdover oscillator. With either oscillator available to stabilize clock timing, the Model 1201B/C can provide the highest level of timing stability in the presence of a false GNSS signal, or from losing the GNSS reception.

  • Page 20: Standard Accessories

    Use care when handling. Remember to store the antenna in a safe place before the final installation. Static Discharge Note that the Model 1201B and the 1201C are electronic devices and use static-sensitive components in their operation. Therefore, use care when handling against static discharges.

  • Page 21: Unpacking And Locating Accessories

    3. Handle the GNSS antenna carefully, as it may be damaged if dropped. Shipping Carton - side view Plastic Wrap Plastic Wrap Space for 1201B/C GNSS Antenna Other Accessories Rackmount Ears Space for Antenna Cable...

  • Page 22: Removing Rackmount Ears

    2. Remove the rack-mount ear and replace the two M5 10 mm flat head screws with the included M5 10 mm pan head screws. 3. Repeat this procedure with the other side of the chassis and other rack-mount ear. Rack-mount Ear Locations Top of Model 1201B/C 1201B GNSS SYNCHRONIZED CLOCK NORMAL TIME/DATE ANTENNA...

  • Page 23: Front And Rear Panels

    Figure 2.1: Model 1201B/C Front Panel Description Front Panel Controls and Indicators The front panel of the Model 1201C differs from the Model 1201B due to the extra LED time display, on the left side, and labeling differences. Other than the display and labeling differences, the two clocks are functionally identical.

  • Page 24: Command Key Definitions

    Front and Rear Panels 2.2.1 Command Key Definitions Figure 2.2 illustrates the keypad and annunciator LEDs on the Model 1201B/C showing the place- ment and basic functions. The details below provide additional description for each of these keys. OPERATE NORMAL...

  • Page 25: Lcd Display

    This section contains information to assist you in identifying where to connect inlet power, the GNSS antenna cable and all of the input and output connections on the Model 1201B/C. Figure 2.3 illustrates the rear panel of the Model 1201B/C.

  • Page 26: Power Inlet

    2.3.1 Power Inlet To cover most of the possible power inlet voltages, the Model 1201B/C has two optional power supplies, Power A and Power B. Carefully examine the paperwork you received to make sure you have correctly identified the inlet connections and voltages. Clock may have two different types of power supplies.

  • Page 27: Optional Fiber Optic Output

    2.3.3 Optional Fiber Optic Output An optional, single fiber optic output may be ordered and will source any available digital signal in the Model 1201B/C. The port includes an ST connector and drives multimode fiber. 2.3.4 Event Input For timing external events based on the GNSS-synchronized time, you may use ports 1, 2, and 3, COM1 (RS-232 port), and one of the optional BNC connectors.

  • Page 28: Standard Inputs/Outputs

    Front and Rear Panels 2.3.7 Standard Inputs/Outputs Figure 2.9 illustrates the timing input/output connectors available for multiple purposes including modulated IRIG-B, unmodulated IRIG-B, 1 PPS, programmable pulse, open drain pull down and event input. For information on driving multiple devices connected in parallel from a single output connector, see Chapter 9, Timing, IRIG-B and Pulses.

  • Page 29: Connecting Inlet Power, Input And Output Signals

    The Model 1201B/C has no power switch, so the clock is energized with the application of power. Universal, High Voltage Power Supply Inlet The universal, high voltage power supply comes with a pluggable, three-terminal connector.

  • Page 30: Low Dc, Power Supply Inlet

    Connecting Inlet Power, Input and Output Signals Low DC, Power Supply Inlet The Low DC supply accepts 22 Vdc to 67 Vdc ONLY (< 30 VA typical), and uses the same three- terminal inlet connector as the universal supply. This low DC only power inlet module can be located in either supply location labeled on the rear panel, and operates POWER A...

  • Page 31: Connecting Output Signals

    On the left side of the rear panel is a rectangular space that accommodates a number of different option boards to increase the functionality of the Model 1201B/C. See Table 2.1 for a list of option boards, descriptions and locations of information for each option.

  • Page 32: Gnss Antenna And Cable Information

    The Model 1201B/C comes complete with the necessary accessories to be able to receive GNSS signals: 50 ft of RG-6 cable and a GNSS antenna. Longer cables are available. The antenna cable is connected between the female F connector on the antenna and the female F connector at the rear panel of the clock.

  • Page 33: Optional Antenna Mounting Bracket, Kit P/N As0044600

    The antenna bracket can be mounted to a wall, a roof, or any other flat surface using the correct hardware. For complete details on this product, request Installation Instructions for Arbiter Systems GNSS Antenna Mounting Bracket on document number PD0024700A. All metallic hardware is stainless steel.

  • Page 34: Antenna Mounting Bracket

    GNSS Antenna and Cable Information Figure 4.2: Antenna Mounting Bracket Figure 4.3: Antenna Mounting with AS0044600...

  • Page 35: Verifying Antenna And Cable Operation

    LED might also remain unlit if the antenna was damaged or defective. 4.2.1 Checking the Antenna Status To view the antenna status from the front panel of the Model 1201B/C, press the antenna key until the display reads . It also displays the antenna voltage and current. The clock provides +5 STATUS: Vdc to the GNSS antenna, which is carried through the antenna cable.

  • Page 36: Gnss Surge Arrester

    GNSS Antenna and Cable Information GNSS Surge Arrester Model 1205B/C and Model 1206B/C have an internal surge arrester to protect the GNSS receiver from voltage spikes. It uses a gas discharge tube and high voltage capacitors. Arbiter also sells an external surge arrester for additional protection. Figure 4.4 illustrates the GNSS surge arrester kit (P/N AS0094500), which is mounted in line with the antenna cable.

  • Page 37: Gnss Cable Data And Accessory Information

    The delay for a standard, 15-meter RG-6 cable is 60 nanoseconds. For other cable assemblies supplied by Arbiter Systems, the delay is tabulated in Table 4.2 below. For cable assemblies not found in Table 4.2, use Equation 4.1 for calculating cable delay. For other lengths and types of cables, remember to add 40 ns to your cable delay and enter that value into the clock.
  • Page 38 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 250 ft, up to 500 ft, Arbiter offers a 21 dB in-line amplifier, P/N AS0044700.
  • Page 39 4.4 Technical Details of GNSS Antennas and Cables Connection to Antenna The male Type F connector on one end of the antenna cable mates with the female Type F connector on the antenna. Avoid placing mechanical stress on the cable attachment to the antenna. Connection to Clock The male Type F connector on the opposite end of the antenna cable connects to the female Type F connector on the rear panel of the clock.

  • Page 40: Setting Internal Jumpers

    Chapter 5 Setting Internal Jumpers Jumpers in the 1201B/C series clocks are normally set to factory default settings , or according to the purchase order if requested. Should it be necessary to change any jumpers or to enable an alternate function, follow the instructions in this chapter.

  • Page 41: Mainboard And Jumper Locations

    5.2 Setting Mainboard Jumpers 5.2.1 Mainboard and Jumper Locations PORT 3 PORT 2 PORT 1 COM1 COM2 U29 FIBER OPTIC PORT - OPTIONAL R24 IS USER SUPPLIED JMP9 JMP12 JMP7 ANTENNA JMP11 PORT 3 PORT 2 PORT 1 CONNECTOR SOURCE SOURCE SOURCE SELECT...

  • Page 42: Digital Outputs: Port 1 And Port 3

    Setting Internal Jumpers Jumper Function Jumper Position JMP1 Normal/Demo Mode Jumper removed = Normal mode* Selection Jumper placed = Demo Mode JMP2 RS-485 source select A = Data out* B = IRIG-B JMP4 Event source select A = RS-232 port B = Port 1 C = Port 2 D = Port 3...

  • Page 43: Irig-B Unmodulated, 5 V Outputs

    5.2 Setting Mainboard Jumpers list each separate input/output function and their respective jumpers. 5.2.3 IRIG-B Unmodulated, 5 V Outputs A 5 V unmodulated IRIG-B signal may be configured at either Port 1 or Port 3. For each port T T L two jumpers need to be verified.

  • Page 44: Event Input

    Setting Internal Jumpers 5.2.6 Event Input If using Ports 1, 2, or 3 for capturing an event, two jumpers are required. If using the RS232 port or the Option E09 Event In port, only one jumper is required. Refer to Table 5.5 to select the desired input connector as the event input.

  • Page 45: Final Setup Instructions

    5.2 Setting Mainboard Jumpers 5.2.9 Final Setup Instructions After correctly setting the necessary jumpers make sure to replace the clock cover before powering up the clock. Read over Chapter 6 so you will understand how the clock behaves during startup. Configure clock operation through the Model 1201 utility software (the Utility), or through the front panel keys.

  • Page 46: Startup And Operation

    8. Initially, the LEARN LED should light for 24 hours, after which it will extinguish and the NORMAL LED will illuminate. 6.1.1 Display Indication at Startup When power is applied, the LCD should indicate as follows: ARBITER SYSTEMS GNSS MODEL 1201B/C CLOCK COPYRIGHT (C) 2014 ARBITER SYSTEMS, INC. TIME NOT AVAILABLE...

  • Page 47: Clock Time, Startup Mode

    6.2 Operating Modes 6.1.2 Clock Time, Startup Mode When the clock first starts, it will not indicate the correct time until it is locked to the GNSS. Pressing the key before the UNLOCKED LED is extinguished will produce the message: TIME/DATE TIME NOT AVAILABLE IRIG-B time and the LCD display will not produce a time while the clock is starting up.

  • Page 48: Time/Date Key Displays

    Startup and Operation alarm, the clock will adopt protective measures to guard its integrity until the interference is no longer detected. Further definition of the faults and alarms are defined in Table 6.1, and may be declared on the front panel and from the web interface. See details in Section 6.6.4 for fault display indications.

  • Page 49: Daylight Saving Time/Summer Time (Dst)

    6.4 Antenna Key Displays LOCAL 05:34:56 DAY 123 2014 NOTE: Unless the daylight saving and local offset parameters have been set properly, this and the previous display may not reflect the correct local time. 6.3.5 Daylight Saving Time/Summer Time (DST) The Daylight Saving Time/Summer Time (DST) configuration feature allows expanded settings.

  • Page 50: Position Display Modes

    6.4.5 Position Display Modes During startup the Model 1201B/C can run in one of two different modes that affect its operation. These two modes are the normal mode and the demo mode. If the clock starts in the normal mode and is acquiring satellites, the only position information available is the previous position, stored in the clock’s memory.

  • Page 51: Timing Key Displays

    6.5.2 Time Quality The Model 1201B/C learn mode will typically last 24 hours before it switches to the normal mode. During the learn mode, the clock is tracking its position and is vulnerable. During the normal mode the clock is not affected by false or lost GNSS signals to upset the time, but relies on its history and excellent holdover qualities.

  • Page 52: System Key Displays

    6.6.2 Power Supply The Model 1201B/C may have one or two power supplies: Power Supply A and Power Supply B. If the clock has one power supply, it will be in position A and power supply B (PSB) voltage will be indicated by dashes.

  • Page 53: Eeprom Errors

    6.6 System Key Displays 6.6.3 EEPROM Errors If the number of corrected (CORR.) errors begins to climb, contact the factory about replacing the EEPROM. EEPROM STATUS CORR. ERRORS = 0 6.6.4 Fault Indications There are a number of faults that may be indicated on the LCD. If a fault occurs and the FAULT LED illuminates, the clock is unreliable and the Time Quality value on the IRIG-B message is set to maximum (i.e.

  • Page 54: Inputs And Outputs

    Startup and Operation FAULT: HO / RECEIVER HO OSC. LOOP UNLOCKED The Holdover Oscillator (HO) Phase Lock Loop (PLL) is unlocked, which means that the PLL is unable to maintain lock between the HO and the VCXO. FAULT: HO /RECEIVER HO OSC.

  • Page 55: 1201 Utility Software

    To configure the level of security. Clock Security Notes The Utility is the only way to set up security features in the Model 1201B/C. Security cannot be setup from the front panel or through RS-232 commands found in Chapter 11. Security must also be disabled to configure the Model 1201B/C using RS-232 commands.

  • Page 56: How The Utility Software Works

    Figure 7.1: Utility Software, Opening Window Setup Tip In this chapter, you may want to start with the Model 1201B/C security set to Level 0 or 1. Doing so allows you to review the communication settings for COM1 and COM2 from the front panel. If not, you would be guessing at the settings until you made a connection.

  • Page 57: Model 1201B/C Security

    7.3.1 Security Features There are six levels of security on the Model 1201B/C, which will assist users in two ways: (1) for a specific use, and (2) protection from unintended use. The Model 1201B/C allows two-letter serial commands as used on earlier clock models, however these commands will be restricted as described below.

  • Page 58: Establishing A Serial Connection

    1201 Utility Software Establishing a Serial Connection NOTE: To connect with the Model 1201B/C use a null-modem cable between the Model 1201B/C and computer; note that signals between Tx and Rx are crossed. Pin connections and functions are as follows: PC side –...

  • Page 59: Reading The Clock Configuration

    COM port on your computer, (2) that you are using the correct baud rate, or other settings, and (3) that you have the correct cable(s) connected between the Model 1201B/C and the computer. Note that it must be a null-modem cable. See table in Section 7.4.

  • Page 60: Starting The Learn Mode

    1201 Utility Software Starting the Learn Mode Initially, the very first time that the clock starts up, it will be in the Promiscuous Mode. While in this mode, the clock is not protected against GNSS spoofing, clock movement and other things that would disturb its operation.

  • Page 61: The Status Screen

    . Status is organized in three groups: (1) clock status, (2) power supply Status status, and (3) antenna status. The definitions from Figure 7.5 below define the values in this menu item. Figure 7.5: Reading the 1201B/C, Status Screen 7.7.1 Definitions Clock Status Four values are provided for clock status.

  • Page 62: The Performance Screen

    (based on the installed oscillator) over various time intervals if the clock were to lose lock with the GNSS. Since these are dynamic values, you must read the clock to view new readings over time. Those displayed are only good for the moment you last read the clock. Figure 7.6: 1201B/C Performance Display Screen...

  • Page 63: The Fault Screen

    The fault screen provides some control over the behavior of the fault reporting and recording system on the Model 1201B/C. The Clear box will remove the specific fault record from memory and the reported fault from the status display. The Mask box deactivates the triggering of the specific fault.

  • Page 64: The Version Screen

    1201 Utility Software 7.10 The Version Screen Choose the Version tab to view the clock serial number and firmware version, which is defined by the release date. Figure 7.8: 1201B/C Version Display Screen...

  • Page 65: Com1 & Com2 - Communication Screens

    This section will cover the setup of COM1. COM2 is set up similarly and the setup screen looks identical except for the title. Make sure to check your connection on the Model 1201B/C rear panel. NOTE: If using a USB-to-Serial converter, connect it to COM2 ONLY.

  • Page 66: The Time Screen

    4 to 5 weeks allotted to DST, depending on the specific year. Since individual countries and regions have their own names, times and dates for the same effect as DST, the 1201B/C was designed to adjust for all these differences around the earth.

  • Page 67: The Outputs Screen

    7.13 The Outputs Screen 7.13 The Outputs Screen The Outputs screen provides for the setup of three groups of output functions: (1) the IRIG-B time code settings, (2) the programmable pulse settings, and (3) the relay operation. 7.13.1 Standard IRIG-B Section Two settings in the section set up: (1) the time zone, and (2) the C37.118.1 setting.

  • Page 68: Auxiliary Irig-B Mode

    1201 Utility Software Select the section to configure how the 1201B/C sends pulses out any port Programmable Pulse when a jumper is set to Programmable Pulse. There are six different modes available within the programmable pulse feature of the clock.

  • Page 69: Seconds Per Pulse Mode

    7.13 The Outputs Screen 7.13.3 Seconds Per Pulse Mode Choose this programmable pulse mode to provide a pulse every X number of seconds, where X can be from 1 to 60,000 seconds. After configuring the pulse mode, make sure to change the jumper for the chosen port to programmable pulse.

  • Page 70: Pulse Per Day Mode

    1201 Utility Software 7.13.5 Pulse Per Day Mode Choose this programmable pulse mode to provide a pulse every day at the chosen hour, minute, second and fractional seconds. Configure the pulse width, from 10 milliseconds to 600 seconds. Check jumpers in Table 5.1. Figure 7.15: Programmable Pulse, Pulse Per Day Screen 7.13.6 Single Trigger Mode...

  • Page 71: Slow Code

    GmbH (previously a subsidiary of Deutsche Telekom AG), on behalf of the PTB. In the Model 1201B/C clocks, DCF77 timing signal is a one-minute time signal produced from any of the digital outputs, but synchronized to the GNSS time signals and not the German system.

  • Page 72: Miscellaneous Screen

    1201 Utility Software 7.14 Miscellaneous Screen Figure 7.17 illustrates the screen where there are a few less frequently configured items, Misc including: Antenna Power, System Delay, LCD Backlight (ON, OFF, Auto), C-Display Format, Event Input settings and Out of Lock Detection. Figure 7.17: Miscellaneous Screen 7.14.1 Miscellaneous Items...

  • Page 73: Option Screen

    7.15 Option Screen 7.15 Option Screen Figure 7.18 illustrates the Option Screen, which allows the configuration of a specific installed option board. By configuring the correct option by name here, the clock will recognize what is installed and provide any needed information to the relevant clock function(s). When some options are selected, like the Time and Frequency Monitor, other settings not shown in Figure 7.18 will appear.

  • Page 74: Security Screen

    RS232 ports access. Note that the Front Panel and COM Port values change automatically with changes to Device Security Level Figure 7.19: Security Configuration Screen For more information on Model 1201B/C security, see Section 7.3.

  • Page 75: Uploading A Configuration

    5. Select Device > Write, or click the Write icon, to upload the saved configuration to the new clock. 6. Select Device > Verify, or click the Verify icon, to verify that the upload matches the config- uration file. Figure 7.20: Uploading a Configuration File to another 1201B/C...

  • Page 76: Clearing Events In The 1201B/C

    Device > Events > Clear Events While broadcasting event records, the buffer will continually be overwritten with new data. Therefore, you would not need to use the feature while broadcasting event data. Clear Figure 7.21: Clearing Events in the 1201B/C...

  • Page 77: Uploading New Firmware

    Model 1201B/C and the connected computer are connected to an uninterrupted power source. Obtain the new firmware from Arbiter Systems. This will be a zip or a hex file depending on the changes. Lastly, make sure you are connected to the 1201 by checking settings for the correct COM port and baud rate.

  • Page 78: Setting To Factory Defaults

    7.19 Setting to Factory Defaults At some time it may be necessary to reset the Model 1201B/C to its original firmware configuration when it left the factory. This is called “resetting to factory defaults” and requires disabling security. Resetting the clock to factory defaults clears memory including any information that may cause problems with its operation.

  • Page 79: Front Panel Menu System

    Chapter 8 Front Panel Menu System This chapter covers the operation of the Model 1201B/C using the front panel display and keypad. Menu System Since the front panel operation is based on specific security levels, verify the security level as enumerated in Section 7.3.

  • Page 80: Lower Keys

    8.1.3 Configure Using the Keypad Figure 8.1 illustrates the Model 1201B/C keypad and annunciator LEDs, with Table 8.2 listing the various menus used to configure the operation. Press the setup key to enter the clock configuration menus, starting with the main RS-232 port parameters.

  • Page 81: The Setup Menus

    8.1 Menu System 8.1.4 The Setup Menus Setup Menus Setup Items Set Serial COM 1? Main RS-232 port parameters and broadcast Set Serial COM 2? Second RS-232 port parameters and broadcast Set Local Time? Set local offset, daylight saving mode Set Out-Of-Lock? Set out-of-lock mode, and time interval before alarm occurs Set Relay Config.?

  • Page 82: Configuration Flow Diagrams

    Front Panel Menu System 8.1.6 Configuration Flow Diagrams This section explains how to use the setup menu flow diagrams in the following sections. The LCD screens display contents of each menu. Use the lower row of keys to configure clock settings. 1.

  • Page 83: Serial Com Port Settings

    8.2 Serial COM Port Settings Serial COM Port Settings Press SETUP to enter the configuration menus. 8.2.1 Serial COM 1 Use the “SET SERIAL COM 1” menu (See Figure 8.2) to configure RS232 settings and to broadcast data. To configure COM 1 port parameters press ENTER, then UP or DOWN to choose the desired value.

  • Page 84: Setting The Local Time

    Front Panel Menu System Setting the Local Time Use the “SET LOCAL TIME?” menu to configure the local offset from UTC to your local standard time, and add any Daylight Saving settings if they apply. Offsets may be adjusted in 15-minute increments, up to plus or minus 12 hours.

  • Page 85: Auto Daylight Saving Setup

    8.3 Setting the Local Time For RS-232 command, see Section 11.2.6. AUTO DST/SUMMER TIME ENTER SETUP AUTO DOWN OFF* START DAY ENTER DOWN SUN* +0720 START MINUTE ENTER +0120* 0120 DOWN -0720 START MONTH ENTER MAR* DOWN 3rd from Last START WEEK 2nd from Last ENTER...

  • Page 86: Setting Out Of Lock Indication

    Front Panel Menu System Setting Out of Lock Indication Use the “SET OUT OF LOCK?” menu to control how the clock responds to an out-of-lock con- dition. Out of lock means that the GNSS receiver in the clock is no longer tracking any satellites and that the time may drift according to characteristics of the internal holdover oscillator and environmental conditions.

  • Page 87: Set Mulitpurpose Relay Configuration

    8.5 Set Mulitpurpose Relay Configuration Set Mulitpurpose Relay Configuration Use the “SET RELAY CONFIG?” menu to configure how the multipurpose relay responds to several clock conditions. Clock conditions include (1) out of lock, (2) faults, (3) alarms, (4) stabilization, and (5) failsafe. These are described in the setup procedure shown in Figure 8.6. Alarms consist of any outside influence, such as a sudden change in GNSS position , that may affect the operation of the clock.

  • Page 88: Setting The Back Light

    Front Panel Menu System Setting the Back Light Use the “SET BACK LIGHT?” menu to configure how the back light operates. Settings are either BACK LIGHT OFF, BACK LIGHT ON, or BACK LIGHT AUTO. In the Auto setting, the back light will operate for approximately 30 seconds before switching off.

  • Page 89: Setting Programmable Pulse Mode

    8.8 Setting Programmable Pulse Mode Setting Programmable Pulse Mode Use the “SET PROG. PULSE?” menu to set up one of the many pulse modes, in which you can broadcast over one of the standard outputs (Port1, Port2, or Port3) at a predetermined interval or rate.

  • Page 90: Programmable Pulse: Seconds-Per-Pulse Mode

    Front Panel Menu System 8.8.2 Programmable Pulse: Seconds-Per-Pulse Mode Use the “SEC. PER PULSE?” mode to generate a pulse every X number of seconds, from 1 to 60,000 seconds (16+ hours), and a Pulse Width of from 10 milliseconds to 600 seconds. Pulse Polarity marked (+) starts at a logic low and transitions high.

  • Page 91: Programmable Pulse: Pulse-Per-Hour Mode

    8.8 Setting Programmable Pulse Mode 8.8.3 Programmable Pulse: Pulse-Per-Hour Mode Use the “PULSE PER HOUR?” mode to generate a pulse every hour, at the number of specified seconds (from 0 to 3599 seconds) after the hour. Configure as illustrated in Figure 8.11. Refer to Section 8.8 above for additional detail on the programmable pulse modes, and entering numerical values.

  • Page 92: Programmable Pulse: Pulse-Per-Day Mode

    Front Panel Menu System 8.8.4 Programmable Pulse: Pulse-Per-Day Mode Use the “PULSE PER DAY?” mode to generate a pulse every day, at the specified hour, minute, second and fractional seconds. Configure as illustrated in Figure 8.12. Refer to Section 8.8 above for additional detail on the Programmable Pulse mode, and entering numerical values.

  • Page 93: Auxiliary Irig-B

    8.8 Setting Programmable Pulse Mode 8.8.5 Auxiliary IRIG-B Use the “SET PROG. PULSE?” menu to setup a second instance of IRIG-B that may have another time zone and IEEE C37.118.1 setting than the “SET IRIG TIME DATA” menu. When you use this mode, regular programmable pulse features are disabled.

  • Page 94: Programmable Pulse: Single Trigger

    Front Panel Menu System 8.8.6 Programmable Pulse: Single Trigger Use the “SINGLE TRIGGER?” mode to generate a transition once per year at the specified Julian Day, hour, minute, second and fractional seconds. For reference, many calendars indicate the Julian Day. A single trigger will transition from 0 Vdc to 5 Vdc when the Pulse Polarity is set to positive, or from 5 Vdc to 0 Vdc if the Pulse Polarity is set to negative.

  • Page 95: Programmable Pulse: Slow Code

    8.8.8 Programmable Pulse: DCF77 Models 1201B/C can provide the DCF77 time signal as an output by choosing it from the front panel within the PROG PULSE selections, or through the utility software. 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 96: Setting Irig Time Data

    Front Panel Menu System Setting IRIG Time Data Use the “SET IRIG TIME DATA?” menu to adjust the time zone from UTC to Local, and to turn the IEEE C37.118.1 extension ON or OFF for outgoing IRIG-B time code. Turning the IEEE C37.118.1 control bits ON includes some additional information (see Section 9.3.3) contained in the IRIG-B time code.

  • Page 97: Setting Option Control

    8.11 Setting Option Control 8.11 Setting Option Control Use the “SET OPTION CONTROL?” menu to configure any auxiliary board option if mounted in the clock. Some of these options require you to configure additional settings. For information on configuring specific options see the Option List located in Appendix B. For RS-232 command, see Section 11.2.13.

  • Page 98: Timing, Irig-B And Pulses

    Timing Output Description The rear panels of the Model 1201B and Model 1201C are identical, and you will see a number of different types of connectors as illustrated in Figure 9.1. There are three standard timing output connectors, labeled I/O PORTS (1, 2, and 3), where you can connect cables for timing.

  • Page 99: Inputs And Outputs: Port 1, Port 2, Port 3

    9.2 Timing Output Description RELAY ANTENNA COM2 I/O PORTS COM1 FIBER POWER B POWER A Serial Number INTERNAL OPTION SPACE ANTENNA STATUS Made in USA Figure 9.1: Rear Panel Descriptions, optional outputs may be shown 9.2.1 Inputs and Outputs: Port 1, Port 2, Port 3 Three, Phoenix-style, terminal connectors can supply timing signals to external equipment, and may also be configured for an event input.

  • Page 100: Output Signal Description

    IRIG-B is a complete serial time code that occurs once per second and, depending on the config- uration, contains the day of year, hours, minutes, seconds, year and other important information. The Model 1201B/C transmits (IRIG) Format B with four variations as seen in Table 9.2. Designation...

  • Page 101: Irig-B Ieee C37.118.1

    9.3 Output Signal Description ON-TIME 1 PPS Start of next second in time code Unmodulated Reference Reference IRIG ZERO IRIG ONE Modulated Figure 9.2: IRIG-B Waveforms 9.3.3 IRIG-B IEEE C37.118.1 As mentioned above, turning IEEE C37.118.1 ON in the clock enables extra bits of the Control Function (CF) portion of the IRIG-B time code.

  • Page 102: Programmable Pulse (Prog Pulse)

    9.3.8 DCF77 Time Signal Model 1201B and 1201C can provide the DCF77 time signal as an output by choosing it from the front panel within the PROG PULSE selections, or through the PROG PULSE selections in the utility software. 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 103: Connecting The Outputs

    Model 1201B/C comes equipped with Phoenix-style, screw terminal connectors, which are compatible with twisted pair cabling. To attach, strip the wires bare, DO NOT tin with solder, insert into the correct screw terminal positions and tighten clockwise. To adapt coaxial cabling to the 1201B/C terminal connectors, use a BNC Breakout , or other similar adapter.

  • Page 104: Attaching Cables To Screw Terminals

    Timing, IRIG-B and Pulses clocks, and use galvanic isolation of time code inputs to IEDs. 9.4.1 Attaching Cables to Screw Terminals Prepare the twisted pair cable by stripping back at least 1/4” of the insulation and any shielding; DO NOT tin the bare wire with solder.

  • Page 105: Connecting Modulated Irig-B

    9.4 Connecting the Outputs Unmodulated Example If the input impedance of an IED is 5 kΩ, determine the device current (I) as seen in Calculation 9.1: (9.1) I = V = 5 V olts 5000 Ω = 0.001 A (1 mA) If you were to connect ten of the same IED’s to the same output, then the total current drawn would be 0.001 A = 0.01 A (10 mA).

  • Page 106: 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 107: Relay Contacts And Event Inputs

    Relay Contacts 10.1.1 Introduction Model 1201B/C provides a single set of mechanical SPDT relay contacts, which typically have a lifetime of less than 100,000 cycles . These contacts may be configured to indicate several clock conditions, or it may be configured for a programmable pulse. If configured for programmable pulse, make sure to consider the pulse frequency.

  • Page 108: Event And 1 Pps Deviation Recording

    10.2.1 Event Timing and Recording When configured for event timing, the 1201B/C can provide one input channel with one hundred nanosecond resolution. This channel is primarily used for synchronization via the RS-232 port with an external computer or other type of device. It may also be used to time an external 5 V CMOS signal applied to one of the I/O connectors;...

  • Page 109: Event Timer Input Channel Configuration

    10.2.5 Event Timer Input Channel Configuration In order for the Model 1201B/C to receive an event at one of the input connectors, adjustments to both the hardware and software configuration may be required. The hardware configuration is described in Section 5.2.7 and Section 5.2.6.

  • Page 110: Clearing Records

    Relay Contacts and Event Inputs 1 PPS signal. A negative number means the applied 1 PPS signal is early, and a positive number means it is late. The bottom number is the standard deviation (sigma) of the 16 sample values. If there is no input, the the numerical value is displayed with dashes.

  • Page 111: Rs-232C Command Set

    Utility (Section 7.3) before using the commands in this chapter. Models 1201B and 1201C have two RS-232 ports, COM1 and COM2. COM1 also provides RS-422/485, transmit only. When viewing the rear panel, COM1 is nearest the antenna connector and COM2 is located to the left of the Standard I/O connectors.

  • Page 112: Installing Custom Broadcast Strings

    Installing Custom Broadcast Strings The Model 1201B/C allows 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. If the standard strings are not exactly what you require, you may want to construct one that better matches your requirements.

  • Page 113: Status Indications And Definitions

    11.2 Standard Command Set Response: 44hhmmss (UTC/Local Time) 55ddd (day of year) 11nn (out-of-lock time) (bel = Hex 07; sounds at the end of the time code) The number and order of strings returned depend upon options ordered with clock (for example Power System Time, Frequency and Phase Monitor): Data is transmitted ahead of time, and the bel character is transmitted on time.

  • Page 114: Holdover Oscillator (Ho) Faults And Definitions

    RS-232C Command Set Fault Fault HO Failure Outer ctl loop unsettled HO Suspect Outer ctl loop unlocked GNSS fail HO ctl loop unlocked GNSS Suspect Reserved Table 11.3: Holdover Oscillator (HO) Faults and Definitions Broadcast Mode: EXT. ASCII Command: B5, O5 B5 configures the clock to broadcast from COM1, the time-of-day as ASCII using an extended format prefaced with a time quality indicator (Q).
  • Page 115 11.2 Standard Command Set Q = Time quality indicator. may be represented by: space = locked, maximum accuracy . = (ASCII 46) Error < 1 microsecond * = (ASCII 42) Error < 10 microseconds # = (ASCII 35) Error < 100 microseconds ? = (ASCII 63) Error >...

  • Page 116: Event Mode Commands

    RS-232C Command Set Response: >900WD:yy-mm-dd hh:mm:ss.fff:cc< CR > yy-mm-dd the current date: yy = year of century, (00. . . 99) mm = month, (1. . . 12) dd = day of month, (01. . . 31) = Space (ASCII 20h) hh:mm:ss.fff the current time: hh = hours, (00.
  • Page 117 11.2 Standard Command Set Set Event Channel Time Command: nTA nTA sets the time source as either Local or UTC, where n = 0 sets the event time to UTC and n = 1 sets the event time to Local. Response: Set Channel: Deviation Command: AD...

  • Page 118: Status Mode Commands

    RS-232C Command Set 11.2.4 Status Mode Commands Return Status of Event/Deviation Command: SA SA returns the event/deviation channel setup information, read index number and write index number. Response: D(E), R = nn, S = mm Format: D indicates the input channel is in 1 PPS deviation mode E indicates the input channel is in event mode nn Channel read index (01 to 50) mm Channel write index (01 to 50)

  • Page 119: Unlocked Time Quality

    11.2 Standard Command Set Receiver Status Command: SR SR returns the current receiver status. Response: V=vv S=ss T=tt P=Off Format: vv = number of satellites, visible to the antenna, per almanac; ss = relative signal strength (range: 0 to 100, nominal value = 45); t = number of satellites being actively tracked (up to 32); P = Off, indicates that the time dilution of precision (TDOP) calculation is not being performed.

  • Page 120: System Log Messages

    RS-232C Command Set 11.2.5 System Log Messages Power Cycles Command: PC returns the number of power cycles. Return a System Log Record Command: nDE returns the date, time and system information of a specific record to memory, where n equals the record number. Records are sequential. An example is listed below. 14 05/04/2015 16:49:16 LOCKED GPS Tracked: 10 GLONASS Tracked: 06 Return Version Change Command: nDV returns the date, time and overall version when last changed.

  • Page 121: Front Panel Control Commands

    11.2 Standard Command Set Set Daylight Saving/Summer Auto Start Time Command: 2,w,x,y,zDT 2,w,x,y,zDT sets the starting (Start) date and time for Daylight Saving / Summer Time AUTO setting. Where: w = Month (0 through 11), with 0 = Jan, 1 = Feb, ... 11 = Dec. x = WeekOfMonth (0 through 5), with 0 = First, 1 = Second, 2 = Third, 3 = Last, 4 = Second from Last, and 5 = Third from Last.

  • Page 122: Irig-B Data Output Commands

    RS-232C Command Set Set Backlight: OFF Command: L0 L0 disables the backlight operation. Response: Set Backlight: ON Command: L1 L1 selects the continuous backlight operation. Response: Set Backlight: AUTO Command: L2 L2 enables the automatic backlight operation. It keeps the backlight active for 30 seconds after any key is pressed.

  • Page 123: Date And Time Commands

    11.2 Standard Command Set Return Longitude Command: LO LO returns the current antenna longitude. Response: Wddd:mm:ss.sss Format: W = West (E for East), ddd = degrees, mm = minutes, ss.sss = seconds 11.2.9 Date and Time Commands Set Receiver Time Command: yyyy:mm:dd:hh:mmTS TS sets the receiver to UTC time only when not locked to the GNSS.
  • Page 124 RS-232C Command Set Seconds Per Pulse / Pulse Per Hour Command: m,nPS m,nPS configures the programmable pulse as “Seconds per Pulse” or “Pulse Per Hour” mode as follows: Response: Format: m = 0, seconds-per-pulse mode m = 1, pulse-per-hour mode n = 1 - 60000 seconds if seconds-per-pulse mode n = 0 - 3599 seconds offset from hour if pulse-per-hour mode For the Seconds-Per-Pulse mode, the first pulse will be on time at the top of the minute.

  • Page 125: Antenna System Delay Commands

    11.2 Standard Command Set 11.2.11 Antenna System Delay Commands Set System Delay Command: nnnnnnDA nnnnnnDA sets the system delay compensation value. NOTE: Factory default setting for the standard 15 m (50 ft) cable is 60 ns plus 40 ns antenna group delay. Time range is from 0 to 999999 nanoseconds. The exact syntax for a 100 ns delay is 100DA.

  • Page 126: Option Control Settings

    Table 11.5: Option Control Settings Option Control Example The following example shows how to set up the optional NTP/PTP Server in a clock using the serial port instead of the front panel. Example: Model 1201B, NTP/PTP Server 6,1201XI Return IP/MAC Address: Development Command: IP IP returns the IP and MAC addresses of both ports of the Option 34.

  • Page 127: Communication Port Information

    Command: @@A . . . , @@B . . . The 1201B/C is able to store two custom strings for broadcasting: Custom A and Custom B. Custom A may be broadcast from COM1 and Custom B from COM2. Use the @@A . . . command to create a Custom A string, and the @@B .

  • Page 128: Constructing A Custom String

    RS-232C Command Set 11.4.4 Constructing a Custom String This section provides the character set and rules for constructing a custom string. At the end of this section is a tutorial on how to construct strings using some of the standard broadcast strings as examples. Custom Broadcast Character Set Character Meaning...

  • Page 129: List Of Possible Time Quality Levels, Ordinal 01

    11.4 Custom Broadcast String Reference True/False Condition Command: /[ii? < t > / :< f > /] where: < t > = True condition < f > = False condition ii: 01 = Locked; 02 = Status change; 03 = Locked with max accuracy; 04 = Fault; 05 = Daylight Saving Time change pending;...

  • Page 130: String Setup Examples And Tutorial

    Ordinal 01. This ordinal consists of 13 different accuracy values as listed in Table 11.8. Notice the ordinals (0, 1, 2,...,B,F) are all represented in this example. All need not be used as shown in the second example. This example more closely follows the 1201B/C accuracy, not signaling a change until reaching 1 microsecond. @@A/T01/d:/h:/m:/s/ 01?0/:1/:2/:3/:4/:5/:6/:7/:8/:9/:A/:B/:F/ /r @@A/T01/d:/h:/m:/s/ 01?0/:0/:0/:0/:4/:5/:6/:7/:8/:9/;out of lock/ /r...
  • Page 131 11.4 Custom Broadcast String Reference ASCII Standard Desired Output: <soh>ddd:hh:mm:ss Input String Code: @@A/T01/d:/h:/m:/s/r Input String Construction Notes: Note that the ordinary method of starting the ASCII Standard broadcast is using the B1 or O1 command as described on page 94. Custom string entry always begins with the @@A for strings output from the COM1 serial port, or @@B for strings output from the COM2 serial port.

  • Page 132: Short Table Of Ascii Characters

    (0 to 99) and Y (2000 to 2xxx). Common ASCII Characters Listed below are a few common ASCII control characters used with the Model 1201B/C series clocks. For a more complete listing of ASCII characters, you will need to consult a additional sources .

  • Page 133: Technical Specifications And Operating Parameters

    12.1.2 Processing Model 1201B and 1201C both operate under the same principles and use the same basic components, only the 1201C has a large LED display in addition to the backlit LCD display. Supervision of these clock systems is under the control of several microprocessors dedicated to separate tasks. The main clock processor governs the overall operation of the clock, including the user interface, and input and output control.

  • Page 134: Power Supply

    Technical Specifications and Operating Parameters 12.1.3 Power Supply All clock models may be fit with either one or two power supplies that provide 24 Vdc to the clock. Power supply options include either Universal (86 V to 265 V , 40 Hz to 440 Hz, 110 V to 370 V ), or Low DC Only (22 V...

  • Page 135: Position Accuracy (Rms)

    12.3 I/O Configuration 12.2.3 Position Accuracy (rms) 2 meters, rms with SA (USA Department of Defense Selective Availability) OFF. 12.2.4 Satellite Tracking Thirty-two (32) channel receiver, C/A code (1575.42 MHz) The receiver simultaneously tracks up to thirty-two satellites. Results from all tracked satellites are averaged and determined by least-squares estimation.

  • Page 136: Multifunction Relay

    Technical Specifications and Operating Parameters 12.3.4 Multifunction Relay Relay may operate under several clock conditions, including: (1) out of lock, (2) alarms, (3) faults, (4) clock not stabilized, and (5) failsafe. Relay Specification Type or Rating Arrangement 1 set of Form C (SPDT) contacts Contact resistance 100 mΩ...

  • Page 137: Broadcast Data Formats

    1 in – 14 (approximately M25.4 1.81) marine-mount thread or a 0.75 in NPT pipe thread. Other mounting configurations are available (contact Arbiter Systems). GNSS Antenna Assembly: 0.75 in pipe thread mount, 35 dB gain; 3.3 Vdc to 5 Vdc.

  • Page 138: Display

    C Display Format: Configures the date format for the large display on Model 1201C clocks to MM/DD/YY or DD.MM.YY. 12.6.3 Display Model 1201B/C includes a 2-line by 20-character LED backlit LCD Model 1201C also includes a six-character, 20mm LED time display 12.6.4 Display Functions...

  • Page 139: Weight

    12.8 Temperature and Humidity Model 1201B Model 1201C 1.4 kg (3.0 lb) net. (Instrument) 1.9 kg (4.3 lbs) net. (Instrument) 2.0 kg (4.4 lb) net. (Antenna and Cable) 2.0 kg (4.4 lbs) net. (Antenna and Cable) 4.5 kg (10 lb) includes antenna, cables and 5.5 kg (12 lb) includes antenna, cables, and...

  • Page 140: Power Inlet Specifications

    Technical Specifications and Operating Parameters 12.9 Power Inlet Specifications The Model 1201B/C may have either one or two user-specified internal power supplies. Additionally, the antenna receives power through the antenna cable connected to the Type F connector on the rear panel. Universal: 85 Vac to 264 Vac, 47 Hz to 440 Hz, <...

  • Page 141: 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 illus- trated 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 142: Installation

    Use the proper crimping tool if using crimp-on connectors. Improper tools may not guarantee a strong and sufficiently grounded connector resulting in poor cable performance and GNSS reception. Consider purchasing RF cables of various standard and custom lengths manufactured by Arbiter Systems. Physical Dimensions...

  • Page 143: Suggested Mounting Of The As0094500 Surge Arrester

    A.3 Physical Dimensions Figure A.2: Suggested Mounting of the AS0094500 Surge Arrester...

  • Page 144: B Options List

    Many of these signals do not apply to the Model 1201B/C series clocks because the signals do not originate on the main clock board. The key to usage is to check the basic specification of the clock to determine the option capability.

  • Page 145: Universal Inlet Power Supply

    B.2 Universal Inlet Power Supply Universal Inlet Power Supply B.2.1 High Range Universal Supply with Terminal Power Strip, SWC This standard power inlet module uses a three-position, screw-type terminal block, and includes surge withstand capability (SWC). The terminal block is intended for use in installations where it is necessary or desirable to have the instrument power hard-wired.

  • Page 146: Low Dc Inlet Power Supply

    Options List Low DC Inlet Power Supply B.3.1 22 Vdc to 67 Vdc ONLY, Terminal Power Strip, SWC The Low DC power supply replaces the Universal power supply with a three-position, screw-type terminal block, including Surge Withstand Capability (SWC). With DC ONLY inlet voltages from 22 Vdc to 67 Vdc, this feature is intended for use in installations where it is necessary or desirable to have the instrument power hard-wired.

  • Page 147: Holdover Oscillator

    fiber. This output is configurable to any of the standard digital (CMOS) signal outputs available from the Model 1201B/C, and provides an optical output power of -15 dBm minimum (-12 dBm typical) into 62.5/125 µm fiber. Signals include unmodulated IRIG-B, 1 PPS and Programmable Pulse.

  • Page 148: Four Configurable Outputs

    This option adds four rear-panel outputs, which may be configured to any of the available signals in the 1201B/C series clocks. Note that there are many more jumper settings on the option board than the 1201B/C is capable of providing. The configuration of the four outputs can be changed at any time via internal jumper settings.

  • Page 149: Jumper Configuration

    B.6 Four Configurable Outputs To choose a specific driver for an output (J2 – J5) use jumpers JMP9 – JMP12, and select position A for digital and B for analog. Choose jumper JMP13 to select for Model 1088B, and choose JMP14 to select for Model 1084, 1093 or 1201.

  • Page 150: Four Configurable Outputs - Signal Choices

    B. These are used for analog signals. In all other JMP1 – JMP4 positions (i.e. 3 – 20), JMP9 – JMP12 must be in position A for digital signals. Available signal choices in the Model 1201B/C are marked in Table B.1 with an asterisk (*).

  • Page 151: Four Fiber Optic Outputs

    B.7 Four Fiber Optic Outputs Four Fiber Optic Outputs When installed into the standard Model 1201B/C this option provides four individually selectable fiber optic outputs with Type ST connectors and 820 nm transmitters compatible with multimode fiber. B.7.1 Specifications Each fiber optic output is jumper-configurable to each of the standard digital (CMOS) signal outputs available in the Model 1201B/C.

  • Page 152: Four Fiber Optic Output Configuration

    IRIG-B Mod. Manch. 3, 4 Table B.2: Four Fiber Optic Output Configuration 1. Signals available on the Model 1201B/C 2. Signals available on the Model 1093A/B/C 3. Signals available on the Model 1088A/B 4. Signals available on the Model 1084A/B/C...

  • Page 153: Jumper Locations

    B.7 Four Fiber Optic Outputs Figure B.4: Jumper Locations...

  • Page 154: 8-Channel High Drive Irig-B Amplifier

    Options List 8-Channel High Drive IRIG-B Amplifier B.8.1 General Description This option provides eight independent, IRIG-B buffered outputs, each capable of driving multiple loads. Outputs are short circuit and surge protected. Each output is individually configurable for either modulated or unmodulated IRIG-B signals via jumper settings as illustrated in Figure B.5. B.8.2 Specifications Output Selection...

  • Page 155: High Drive Outputs Jumper Locations

    B.8 8-Channel High Drive IRIG-B Amplifier Figure B.5: 8 High Drive Outputs Jumper Locations...

  • Page 156: Output Load And Loop Example: Unmodulated Irig-B

    Options List B.8.4 Output Load and Loop Example: Unmodulated IRIG-B When designing circuits for connection to the output bus, several factors must be considered. 1. Loop Resistance 2. Type and quantity of loads connected 3. Maximum loop distance desired Table B.3 provides a matrix of these factors using the Schweitzer relay(s) as the output load(s). The loop distance figures were obtained using the following types of Belden Wire (cross-referenced to corresponding part number): AWG20...

  • Page 157: Connecting Load(S) To Output Bus

    B.8 8-Channel High Drive IRIG-B Amplifier B.8.5 Connecting Load(s) to Output Bus The following example illustrates use of different types of SEL relays connected to the output bus. Total Load Current: 250 mA (peak) per driver or less. Note 1: Shielding is optional.

  • Page 158: Output Loading (Modulated Irig-B)

    AGC amplifier, providing tolerance for signal level variations. Consequently, modulated IRIG- B loads may be connected with greater ease; Arbiter Systems recommends that you simply calculate the effective parallel load impedance of the parallel-connected loads. As long as the load impedance is 50 Ω or more per driver, and the loads will accept a 3 Vpp minimum signal level, and the connecting lines are short (5 Ω...

  • Page 159: Power System Time, Frequency And Phase Monitor

    B.9.1 General Description This section describes the optional Power System Time, Frequency, and Phase Monitor, which can be used in the Arbiter Systems Model 1201B/C GNSS synchronized clocks. B.9.2 Discussion Provides the clock with the ability to accept either a 50 Hz or 60 Hz, 30 Vrms to 300 Vrms signal input and measure the instantaneous phase, magnitude and frequency of the fundamental component while rejecting the effects of harmonics, noise and DC offsets.

  • Page 160: Calibration

    Options List SET SYSTEM TIME DEV? +/-XXXXX.XXX Sec TIME FREQUENCY 60 Hz Viewing the Measurements View the measurements on the front panel display as follows: 1. Press the SYSTEM key repeatedly until it states OPTION STATUS and press ENTER. Observe the following display on the front panel (values are representative): SYSTEM ∆...

  • Page 161: Amplitude Calibration

    1.0, and is multiplied by the measured result to generate the displayed value. If an accurate ac source at 50 Hz or 60 Hz is available (for example, the Arbiter Systems, Inc. Model 1040C Panel Meter Calibrator), the error can be measured and the correction factor entered as described. For example, if 120 Vrms is applied to the option assembly, and the display indicates 119.1 Vrms, the calibration factor is (120.0 / 119.1) or...
  • Page 162 Options List Return System Phase Command: PS PS returns the system phase. Response: SS ppp.pp Where: SS = UTC seconds ppp.pp = phase, 0 to 360 degrees Return System Time Deviation Command: TD TD returns the system time deviation. Response: SS tt.tttt Where: SS = UTC seconds...

  • Page 163: B2 Broadcast, Time Deviation Values

    B2 configures COM1 to broadcast data to support Vorne large format time displays. Data is transmitted ahead of time, and the <BEL> character is transmitted on time. When properly configured, the Vorne display updates simultaneously upon receipt of the <BEL> character. Refer to Arbiter Systems Application Note 103 for more information.
  • Page 164 Options List Response: broadcast mode, UTC: mm/dd/yyyy hh:mm:ssU ss +f.fff +t.tttt ppp.ppp vvv.vv broadcast mode, Local: mm/dd/yyyy hh:mm:ssL ss +f.fff +t.tttt ppp.ppp vvv.vv Where: mm/dd/yyyy = Date hh:mm:ssU = Time of Day, UTC (or) hh:mm:ssL = Time of Day, Local = Status first character is Reference Status: 0 : Locked;...
  • Page 165 B.9 Power System Time, Frequency and Phase Monitor - (2Dh) frequency below nominal Units of Hertz (Frequency Deviation) Period, decimal point Tenths, hundredths and thousandths of Hertz Carriage-return, line-feed characters (0Dh, 0Ah) Set Measured System Deviation Command: (-)s.fsRD (-)s.fsRD sets the system deviation. Response: Where: s = 0 to...
  • Page 166 Options List (first character is Reference Status:) (second character is clock status per IEEE C37.118.1) +f.fff signed Frequency Error in Hz. +t.tttt signed Time Deviation in seconds. ppp.pp Phase Angle, 0 to 360 degrees. vvv.vv Line voltage, rms Volts.

  • Page 167: Four Additional Outputs And Dry Contacts; +25/50 Vdc

    B.10 Four Additional Outputs and Dry Contacts; +25/50 Vdc B.10 Four Additional Outputs and Dry Contacts; +25/50 Vdc B.10.1 General Description This section describes an optional board with the following features: Four Additional Outputs With Dry Contact and +25/50 Vdc. With six configurable outputs, this option includes four standard, 5 V CMOS outputs, two Aromat AQV210E solid-state relays (SSRs).
  • Page 168 Options List Solid State Relay Output, continued Output Power Supply: Individually configurable for 0 Vdc, +25 Vdc, or +50 Vdc. Available Output Sig- 1 PPS, Programmable Pulse, Locked and Out of Lock. nals: Pulse Width: Individually configurable for a fixed, 50 ms pulse, or the de- fault width of pulse provided by the clock mainframe.

  • Page 169: Firmware Configuration

    B.10 Four Additional Outputs and Dry Contacts; +25/50 Vdc Function Setup Jumpers: Default Settings 1 (Rightmost) CMOS Output 1 JMP4: Signal Select Default = 1 PPH Ground – CMOS Output 2 JMP3: Signal Select Default = 1 PPM Ground – CMOS Output 3 JMP2: Signal Select Default = Prog.

  • Page 170: Output Jumper Setting Changes

    Options List B.10.4 Output Jumper Setting Changes 1. Set the line power switch to OFF position (if equipped). Disconnect the power cord from rear panel. 2. Remove rack-ears (if equipped) and remove top cover using a T25 Torx driver (4 screws). 3.

  • Page 171: Option Connector Signal Locations

    B.10 Four Additional Outputs and Dry Contacts; +25/50 Vdc Figure B.7: Option Connector Signal Locations...

  • Page 172: Ntp/Ptp Server

    This option provides Network Time Protocol (NTP) and Precision Time Protocol (PTP) servers in the Arbiter Model 1201B/C series GNSS clocks. These instructions will assist you in the setup and configuration of the NTP/PTP server. Configure this option using the Web Interface or the SSH Console.

  • Page 173: Ntp/Ptp Server Setup

    Ground Table B.6: Null-Modem Cable Connections 1. Open a terminal program at the same baud rate as the clock. For the Model 1201B/C, the default port settings should be 115,200 baud, 8 data bits, no parity and 1 stop bit.
  • Page 174 Options List 2. Type the letter “v” to verify communication. It should return the firmware date code. 3. For Model 1201B/C type “6,1201XI” (without quotes) and the cursor should jump down to the next line without displaying a question mark.

  • Page 175: Ntp/Ptp Server Led Indications

    B.11 NTP/PTP Server After the Clock and Server Have Stabilized After the GNSS clock and the NTP/PTP Server have stabilized, press the SYSTEM button to view server status, link status and port addresses (IP and MAC address). Server Status NTP: SYNCHRONIZED PTP: RUNNING Link Status: indicates whether the network connection is good or bad.

  • Page 176: Web Interface

    The Web Interface responds when you open a web browser and type in the IP address of one of the NTP/PTP Server ports. Each IP address may also be viewed in the 1201B/C front panel display if the port is connected to a network.

  • Page 177: Startup Page

    B.11 NTP/PTP Server Important Configuration Change Notes Certain configuration changes will cause you to lose the web interface connection. These configuration changes include: 1. changing from HTTP to HTTPS 2. changing a Network configuration 3. changing a System configuration on the port which you are connected. If you are making changes to another port, the web interface connection will not be dropped.

  • Page 178: System Configure Page

    Options List System Configure Page Figure B.9 illustrates the System configuration page for the NTP/PTP Server. It includes configuring for HTTP or HTTPS (see next section), enabling session time outs for the web interface and SSH Console, responding to ping requests and setting your time zone. Time zone setting only changes the time as it is read on the web interface under the Clock selection.

  • Page 179: Configure Https

    B.11 NTP/PTP Server System Configure HTTPS Page WARNING: If you plan to install your own PEM file, generated from a private key and a self-signed certificate, make sure to verify the PEM file before installation, or you could experience a denial of service, and may need to return your clock for repair.

  • Page 180: Configure System Password

    Figure B.12. This should open your file browser in which you should be able to locate the file package obtained from Arbiter Systems. Click the Update button and the file should load to the NTP/PTP Server. After uploading the package the NTP/PTP Server must be rebooted for the changes to take effect.

  • Page 181: Checking Network Status

    B.11 NTP/PTP Server Network Settings and Information To view the network status of your NTP/PTP Server follow these instructions. Select the Network item on the left side of the web interface. Figure B.14 displays network status for both Ethernet Port 1 and Port 2. This includes the IP addresses, MAC addresses and some standard data traffic statistics.

  • Page 182: Configure Network Settings

    Options List Configure Network Settings To configure the network settings of your NTP/PTP Server follow these instructions. Figure B.15 illustrates the configurable network functions on NTP/PTP Server. Notice that the Ethernet Port 1 Mode is selected as DHCP and Ethernet Port 2 Mode is selected as Static. When selecting Static, the additional settings (i.e. Address, Netmask and Gateway) will appear.

  • Page 183: View Operation

    Figure B.17: View Operation SNMP Status View this web interface page to check the SNMP status as illustrated in Figure B.18. For additional detail on SNMP in the Model 1201B/C, see SNMP Support in Section B.11.5. NTP/PTP Server Module Configure...

  • Page 184: Snmp Configuration Page

    Options List Configure SNMP Follow these instructions to configure SNMP operation in the NTP/PTP Server. Figure B.19 illustrates the different selections for enabling the service and selecting traps (notifications). For definitions of SNMP “Configure” selections, see Section B.11.5. NTP/PTP Server Module Status Configure Enable SNMP Service...

  • Page 185: Ptp Status Page

    B.11 NTP/PTP Server PTP Status Page To view the PTP service, select PTP tab on the left and the Status tab above. “+35” is the Current UTC/PTP Offset in seconds. Note that PTP time is referenced to International Atomic Time (TAI, from the French name Temps atomique international ).

  • Page 186: Ptp Configuration Page

    Options List PTP Configuration To configure PTP follow these instructions. Figure B.21 illustrates the PTP configuration page. Choices for the Delay Mechanism include either P2P (Peer to Peer) or E2E (End to End). Protocol choices include UDP IPv4, UDP IPv6 or Layer 2. Figure B.21 shows the Advanced settings, which can be hidden using the Hide Advanced button.
  • Page 187 B.11 NTP/PTP Server PTP Terms Domain: a collection of one or more PTP subdomains. A subdomain is a logical grouping of 1588 clocks that synchronize to each other using the PTP protocol, but that are not necessarily synchronized to PTP clocks in another PTP subdomain. Subdomains provide a way of implementing disjoint sets of clocks, sharing a common network, but maintaining independent synchronization within each set.

  • Page 188: Ntp Status Page

    Options List NTP Status Page To view the NTP service, select NTP tab on the left and the Status tab above. Figure B.22 illustrates the status of NTP. Figure B.22: NTP Status Page NTP Terms NTP: either running or stopped. Root Dispersion: (or dispersion) represents the maximum error of the local clock relative to the reference clock.

  • Page 189: Ntp Configure Page

    B.11 NTP/PTP Server NTP Configure To configure NTP follow these instructions. Figure B.23 illustrates the NTP configuration page. Choices for the NTP Version include Versions 1, 2, 3 and 4. Multicast and Broadcast addresses may be typed in the assigned boxes. Figure B.23: NTP Configure Page...

  • Page 190: Ntp Authentication Page

    Options List NTP Authentication Authentication involves advanced configuration for NTP, and used to prevent tampering with the timestamps on the logs generated by devices. You can configure a device to authenticate the time sources to which the local clock is synchronized. When you enable NTP authentication, the device synchronizes to a time source only if the source carries one of the authentication keys specified by the ntp trusted-key command.

  • Page 191: Contact And Version Information

    B.11 NTP/PTP Server NTP/PTP Server Support Pages Use this page, with Figure B.25, to contact Arbiter Systems and for version support. NTP/PTP Server Module Contact Version Arbiter Systems, Inc. SNMP 1324 Vendels Circle, Suite 121 Clock Paso Robles, CA 93446...

  • Page 192: Ssh Console Interface

    B.11.4 SSH Console Interface These instructions cover the setup and maintenance of the 1201B/C using the Secure Shell (SSH) Console Interface. Secure Shell is an alternative to using the Telnet protocol, and used for securely gaining access to a remote system like the optional NTP/PTP Server. Configure all settings through one of the Ethernet ports.

  • Page 193: System Configure Page Using Ssh

    B.11 NTP/PTP Server Useful Keys for 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 –...

  • Page 194: Configure System Password Using Ssh

    Options List Configure Password Using the cursor keys navigate to the System Password page (Figure B.28). In the System/Password page, fill in the old and new password. Remember to write down any new password and keep it in a safe place. Computer Name -- ssh clockoption@(IP address) -- 80x24 Time Protocol Server Figure B.28: Configure System Password Using SSH...

  • Page 195: Update Operating System Using Ssh

    B.11 NTP/PTP Server System Update The SSH console now allows you to update system files, however it requires that you have an ssh daemon running on the remote server that supports secure copy (scp). It also requires a valid username and password to access the remote server.

  • Page 196: Checking Network Status Using Ssh

    Options List Network Settings and Information To view the network status of your NTP/PTP Server using the SSH Console follow these instructions. Use the cursor keys to navigate to Network Status (Figure B.30), which should display the network status for both Ethernet ports, 1 and 2.

  • Page 197: Configure Network Settings Using Ssh

    B.11 NTP/PTP Server Configure Network Settings To configure the network settings of your NTP/PTP Server follow these instructions. Figure B.31 illustrates the configurable network functions on the NTP/PTP Server. Notice that the Ethernet Port 1 Mode is selected as DHCP and Ethernet Port 2 Mode is selected as Static. When selecting Static, the additional settings (i.e.

  • Page 198: View Operation Using Ssh

    Options List GNSS Status and Time Quality This web interface page displays basic GNSS satellite information and time quality. Select this page to view Time Quality, Satellite information and Leap Seconds accumulated and pending, as shown in Figure B.32. Computer Name -- ssh clockoption@(IP address) -- 80x24 ARBITER Time Protocol Server SYSTEMS...

  • Page 199: Ptp Status Page Using Ssh

    B.11 NTP/PTP Server PTP Status Page To view the PTP service, select PTP tab on the left and the Status tab above. Figure B.34 illustrates the status of PTP. Computer Name -- ssh clockoption@(IP address) -- 80x24 ARBITER Time Protocol Server SYSTEMS [ PTP ] [ Status ]...

  • Page 200: Ntp Configure Page Using Ssh

    Options List NTP Terms NTP: reveals that it is either running or stopped. Root Dispersion: (or dispersion) represents the maximum error of the local clock relative to the reference clock. Offset: (or clock offset) represents the amount to adjust the local clock to bring it into correspondence with the reference clock.

  • Page 201: Ntp Authentication Page Using Ssh

    B.11 NTP/PTP Server NTP Authentication Authentication involves advanced configuration for NTP, and used to prevent tampering with the timestamps on the logs generated by devices. You can configure a device to authenticate the time sources to which the local clock is synchronized. When you enable NTP authentication, the device synchronizes to a time source only if the source carries one of the authentication keys specified by the ntp trusted-key command.

  • Page 202: Contact And Version Information Pages Using Ssh

    Options List NTP/PTP Server Support Pages Use this page, with Figure B.38, to contact Arbiter Systems and for version support. Computer Name -- ssh clockoption@(IP address) -- 80x24 ARBITER Time Protocol Server SYSTEMS [ Contact ] Version Update Log SNMP Arbiter Systems, Inc.

  • Page 203: Snmp Support

    Model 1201B/C and not configure settings. See Section B.11.5 for a print out of the current MIB table. To obtain a soft copy of the MIB table for the Model 1201B/C, you may download it from the Arbiter Systems website at the following address: www.arbiter.com.
  • Page 204 Options List SNMP Traps SNMP Traps (v1) or Notifications (v2) may be used to: send notification of a change signify a problem with the system notify that some needed system maintenance was performed notify that someone has logged on to the system Traps, or notifications, are generally sent to an IP address of a computer running SNMP management software.
  • Page 205 Arbiter’s technical team. Updates are available by download from the Arbiter web site. Also, the SNMP agent that runs on the the NTP/PTP Server is also available for download and use in the Model 1201B/C. The MIB table is normally loaded in a MIB browser and the agent is normally uploaded into the NTP/PTP Server.
  • Page 206 Options List ntptrap OBJECT IDENTIFIER ::= ntp 2 – – Textual Conventions: – MilliUnits ::= TEXTUAL-CONVENTION DISPLAY-HINT “d-3” STATUS current DESCRIPTION “” SYNTAX INTEGER MicroUnits ::= TEXTUAL-CONVENTION DISPLAY-HINT “d-6” STATUS current DESCRIPTION “” SYNTAX INTEGER – – General Device Information –...
  • Page 207 B.11 NTP/PTP Server SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “The device model.” version 1 sysDevVerCore OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “The device model.” version 2 sysDevVerMonitor OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “The device model.”...
  • Page 208 Options List DESCRIPTION “The device model.” version 8 sysDevClockModel OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “The device model.” device 6 sysDiagLabel OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “Diagnostic information.” diag 1 sysDiagTemp OBJECT-TYPE SYNTAX MilliUnits MAX-ACCESS read-only STATUS current DESCRIPTION “The current temperature of the device.”...
  • Page 209 B.11 NTP/PTP Server rec1 2 gnssRec1SatsVisible OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION “Number of GNSS Satellites visible to receiver 1” rec1 3 gnssRec1SatsTracked OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION “Number of GNSS Satellites tracked by receiver 1” rec1 4 systrapPowerUp OBJECT-TYPE SYNTAX OCTET STRING...
  • Page 210 Options List – NTP System Group – ntpSysString OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “ String identifier for the NTP System Group.” ntpsys 1 ntpSysClock OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “the current local time. Local time is derived from the hardware clock of the particular machine and increments at intervals depending on the design used.”...
  • Page 211 B.11 NTP/PTP Server DESCRIPTION “” ntpsys 7 ntpSysClkWander OBJECT-TYPE SYNTAX MilliUnits MAX-ACCESS read-only STATUS current DESCRIPTION “” ntpsys 8 ntpSysRootDelay OBJECT-TYPE SYNTAX MilliUnits MAX-ACCESS read-only STATUS current DESCRIPTION “the total roundtrip delay to the primary reference source at the root of the synchronization subnet, in seconds”...
  • Page 212 Options List DESCRIPTION “signed integer indicating the precision of the various clocks, in seconds to the nearest power of two.” ntpsys 13 ntpSysRefTime OBJECT-TYPE SYNTAX OCTET STRING MAX-ACCESS read-only STATUS current DESCRIPTION “ the local time when the local clock was last updated.
  • Page 213 B.11 NTP/PTP Server ntpSysPrecision: signed integer indicating the precision of the various clocks, in seconds to the nearest power of two. ntpSysRootDelay: the total roundtrip delay to the primary reference source at the root of the synchronization subnet, in seconds. tpSysRootDispersion: the maximum error relative to the primary reference source at the root of the synchronization subnet, in seconds.

  • Page 214: Ntp/Ptp Server Specifications

    Options List B.11.6 NTP/PTP Server Specifications Performance NTP: < 100 microseconds, depending on network load and clock accuracy PTP: < 100 microseconds (software) < 1 microsecond with hardware assist Interface Network Two Ethernet (Version 2.0/IEEE 802.3) 10/100BT or multimode SSF modules Protocols NTP, SNTP, PTP (IEEE 1588 -2008), UDP, ICMP, SNMP, TCP, SSH, SCP,...

  • Page 215: Time Zone Format Strings

    B.11 NTP/PTP Server B.11.7 Time Zone Format Strings Table B.8 lists some common time zone strings as discussed on page 161. These strings are meant to be installed in the NTP/PTP Server to configure the local time indicated as in the Web Interface, Clock screen. Values in this table are constructed and formatted according to the POSIX system.

  • Page 216: Four Bnc Connectors

    Model 1093A/B/C and 1201B/C Only B.12.1 General Description This section describes the BNC output connectors option; which is used in the Arbiter Systems Model 1201B/C GNSS Synchronized Clocks. This option is installed in the AUX. Board option slot. BNC Output Connectors Option The BNC output connectors option provides the Model 1201B/C with three BNC output connectors and one BNC input connector.

  • Page 217: C Creating A Self-Signed Certificate

    Appendix C Creating a Self-Signed Certificate 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 NTP/PTP option must be configured with an SSL Certificate.

  • Page 218: 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 219: Step 4 - Create The Pem File

    C.1 HTTPS/SSL 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. cat private.key my.crt >...

  • Page 220: D Ce Mark Certification

    Appendix D CE Mark Certification The following pages contain the individual CE Mark Certifications for models covered in this manual. This includes Model 1201B and 1201C.
  • Page 221 Declaration of Conformity with European Union Directives Date of Issue: June 30, 2014 Directives: 89/336/EEC Electromagnetic Compatibility 73/23/ EEC Low Voltage Safety Model Number(s): 1201B GNSS Synchronized Clock 1201C GNSS Synchronized Clock Manufacturer: Arbiter Systems, Inc. 1324 Vendels Circle, Suite 121 Paso Robles, CA 93446 Harmonized...

  • Page 222: E Statement Of Compliance

    Appendix E Statement of Compliance The following page is a statement of compliance that includes Model 1201B and 1201C.
  • Page 223 Arbiter Systems does not supply a type test certificate as requested for GNSS systems as the accuracy is a function of the GNSS system and not of the receiver. However we (Arbiter) hereby certify that this equipment conforms to all Arbiter Systems Incorporated specifications for material and process.
  • Page 224 Index 1-PPS Appendix description, 83 A, 123 1201 software B, 126 connecting, 40 C, 202 display setup, 46 D, 204 prog pulse, 50 pulse per day, 52 cable pulse per hour, 51 accessory, 20 reading clock config, 41 adjacent signal interference, 20 seconds per pulse, 51 delays, 88 serial parameters, 47...
  • Page 225 INDEX out of lock, 68 replacing, 12 programmable pulse, 71 types and location, 12 RS-232, 65 GNSS, 1 system delays, 70 surge arrester, 18, 123 connecting modulated IRIG-B, 87 handling NTP/PTP, 154 precautions, 2 outputs, 85 holdover, 6, 33 unmodulated IRIG-B, 86 fault indication, 35 connecting power to the clock, see inlet power indications, 96...
  • Page 226 INDEX description, 9 display, 7 front panel setup, 68 Learn mode, 29 jumper selection table, 24 mainboard jumper location, 23 status indicators, 6 operation, 26, 89 longitude display, 32 rear panel, 8 solid state, 149 mounting kit specifications, 89 antenna, 14 warning for prog pulse usage, 69 multiple devices RG-11...
  • Page 227 105 SNMP, 185 longitude, 105 configuration reference, 186 seconds per pulse, 106 configuring traps, 186 set 1201B/C model, 109 enabling, 186 set deviation operation, 99 mib object definitions, 194 set event operation, 99 mib table, 187 set IEEE C37.118.1 mode, 104...
  • Page 228 INDEX serial port, 95 support request, iii surge arrester, 18, 123 synchronizing multiple devices on one port, 86 system log messages, 102 clear log, 102 power cycles, 102 return a record, 102 return status, 102 return version, 102 the Utility, 1201 utility software, 37 time display modes, 30 time zone format strings, 197 timing outputs...

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