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18

GNSS Antenna and Cable Information

4.3

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. The
surge suppressor has two female F connectors, which are bidirectional, and two mounting holes and
a ground attachment point. It comes with hardware for connecting to a solid ground. The surge
arrester passes power to the GNSS antenna, but does not draw power.

Figure 4.4: GNSS Surge Arrester

Antenna

 Receiver

Surge Arrester/Grounding Block

AS0094500A

4.3.1

Using the GNSS Surge Arrester

Before installation, review the documentation on this device found in Appendix A. The AS0094500
surge arrester is weatherproof except for the F connectors, which may be sealed with rubber port
seals or GE Silicone II compound.

4.4

Technical Details of GNSS Antennas and Cables

4.4.1

Length and Loss Considerations

Standard Antenna Cable

The standard antenna cable assembly included with the clock is constructed using a 15 m (50 ft)
length of RG-6 type low-loss coaxial cable, terminated with male Type F connectors. Optional
lengths of RG-6 coax are separately available for longer runs; see Table 4.2, Cable Data and
Accessory Information.

Effects of Cable Parameters

To receive GNSS signals and properly operate the clock, the type and length of the cable are
important. Due to their effect on specific parameters described in the following paragraphs, any
changes to the length and/or type of antenna cable should be made carefully. Damaged cables may
also affect performance.

Cable and Antenna Delay

Two factors must be compensated for to assure the best accuracy from the clock, cable delay and
antenna group delay. Together they are called System Delay. These two values are added together
and configured in the clock. Firmware uses these values to counteract the effect that the combined

Summary of Contents for 1201B

Page 1: ...NCHRONIZED CLOCK LEARN UNLOCKED NORMAL ALARM LEARN UNLOCKED NORMAL ALARM POWER A POWER B OPERATE FAULT POWER A POWER B OPERATE FAULT UP SETUP DOWN ENTER TIME DATE ANTENNA TIMING SYSTEM UP SETUP DOWN ENTER TIME DATE ANTENNA TIMING SYSTEM ARBITER SYSTEMS INC PASO ROBLES CA 93446 U S A WWW ARBITER COM ...

Page 2: ...e date for your Model 1201B C press SYSTEM key until reaching the Serial Number S N and firmware version screen To determine the current firmware date for this product see the Arbiter website under the specific product model Firmware Updates Main Board The clock main board requires a flash package to update firmware Flash file updates are available for download from the Arbiter website Firmware Up...

Page 3: ...WISE ARBITER SYSTEMS DISCLAIMS ANY WARRANTY OF MER CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND BUYER EXPRESSLY WAIVES ALL OTHER WARRANTIES This limited warranty does not extend to any product which has been subject to 1 Improper use or application abuse or operation beyond its rated capacity or contrary to the instructions in the operation and maintenance manuals if any 2 Accident 3 Repai...

Page 4: ...iv ...

Page 5: ...ont Panel Menu System Chapter 9 Timing IRIG B and Pulses Chapter 10 Relay Contacts and Event Inputs Chapter 11 Serial Communications and Command Set Chapter 12 Specifications and Technical Details Appendix A 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 ...

Page 6: ...d Disabling the Keypad and Display 7 2 3 Rear Panel Identification and Connectors 7 2 3 1 Power Inlet 8 2 3 2 Antenna Input 8 2 3 3 Optional Fiber Optic Output 9 2 3 4 Event Input 9 2 3 5 RS 232 and RS 485 Communication Ports 9 2 3 6 SPDT Relay Contacts 9 2 3 7 Standard Inputs Outputs 10 2 3 8 Option Board Interface 10 3 Connecting Inlet Power Input and Output Signals 11 3 1 Universal High Voltage...

Page 7: ...23 5 2 2 Digital Outputs Port 1 and Port 3 24 5 2 3 IRIG B Unmodulated 5 V Outputs 25 5 2 4 1 PPS and Programmable Pulse 5 V Outputs 25 5 2 5 Analog and Digital Outputs Port 2 25 5 2 6 Event Input 26 5 2 7 Relay Operation 26 5 2 8 Fiber Optic Output Optional 26 5 2 9 Final Setup Instructions 27 6 Startup and Operation 28 6 1 Initial Startup Sequence 28 6 1 1 Display Indication at Startup 28 6 1 2 ...

Page 8: ...ware Works 38 7 3 Model 1201B C Security 39 7 3 1 Security Features 39 7 4 Establishing a Serial Connection 40 7 5 Reading the Clock Configuration 41 7 6 Starting the Learn Mode 42 7 7 The Status Screen 43 7 7 1 Definitions 43 7 8 The Performance Screen 44 7 9 The Fault Screen 45 7 10 The Version Screen 46 7 11 COM1 COM2 Communication Screens 47 7 12 The Time Screen 48 7 13 The Outputs Screen 49 7...

Page 9: ...8 7 Setting System Delays 70 8 8 Setting Programmable Pulse Mode 71 8 8 1 Entering Numerical Values 71 8 8 2 Programmable Pulse Seconds Per Pulse Mode 72 8 8 3 Programmable Pulse Pulse Per Hour Mode 73 8 8 4 Programmable Pulse Pulse Per Day Mode 74 8 8 5 Auxiliary IRIG B 75 8 8 6 Programmable Pulse Single Trigger 76 8 8 7 Programmable Pulse Slow Code 77 8 8 8 Programmable Pulse DCF77 77 8 9 Settin...

Page 10: ...10 2 Event and 1 PPS Deviation Recording 90 10 2 1 Event Timing and Recording 90 10 2 2 Event Timing Latency 90 10 2 3 1 PPS Deviation Measurement 90 10 2 4 1 PPS Deviation Measurement Principle 90 10 2 5 Event Timer Input Channel Configuration 91 10 2 6 Firmware Setup 91 10 2 7 Displaying Data 91 10 2 8 1 PPS Deviation 91 10 2 9 Clearing Records 92 11 RS 232C Command Set 93 11 1 Introduction 93 1...

Page 11: ...Input Signal 116 12 2 2 Timing Accuracy 116 12 2 3 Position Accuracy rms 117 12 2 4 Satellite Tracking 117 12 2 5 GNSS Acquisition Time 117 12 3 I O Configuration 117 12 3 1 I O Connectors Main Board 117 12 3 2 Standard Output Signals 117 12 3 3 Event Input 1 PPS Deviation 117 12 3 4 Multifunction Relay 118 12 4 System Interface 118 12 4 1 Broadcast Data Formats 119 12 4 2 Synchronization 119 12 5...

Page 12: ...1 General Description 130 B 6 2 Specifications 130 B 6 3 General Information 130 B 7 Four Fiber Optic Outputs 133 B 7 1 Specifications 133 B 7 2 Output Jumper Enable JMP2 JMP5 133 B 8 8 Channel High Drive IRIG B Amplifier 136 B 8 1 General Description 136 B 8 2 Specifications 136 B 8 3 Option Setup 136 B 8 4 Output Load and Loop Example Unmodulated IRIG B 138 B 8 5 Connecting Load s to Output Bus ...

Page 13: ...6 NTP PTP Server Specifications 196 B 11 7 Time Zone Format Strings 197 B 12 Four BNC Connectors 198 B 12 1 General Description 198 C Creating a Self Signed Certificate 199 C 1 HTTPS SSL Certificate 199 C 1 1 Step 1 Generate a Private Key 199 C 1 2 Step 2 Generate a Certificate Signing Request CSR 199 C 1 3 Step 3A Purchase a Certificate 200 C 1 4 Step 3B Generate a Self Signed Certificate 200 C 1...

Page 14: ...ow DC Power Supply Inlet Description 12 4 1 Antenna Assembly for Mounting 15 4 2 Antenna Mounting Bracket 16 4 3 Antenna Mounting with AS0044600 16 4 4 GNSS Surge Arrester 18 5 1 Main board and Jumper Locations 23 7 1 Utility Software Opening Window 38 7 2 Connecting with the 1201B C 40 7 3 Reading the 1201B C Configuration 41 7 4 Initiating the Learn Mode 42 7 5 Reading the 1201B C Status Screen ...

Page 15: ... Setup 70 8 8 System Delay Setup 70 8 9 Programmable Pulse Setup 71 8 10 Seconds Per Pulse Setup 72 8 11 Pulse Per Hour Setup 73 8 12 Pulse Per Day Setup 74 8 13 Seconds Per Pulse Setup 75 8 14 Single Trigger Setup 76 8 15 Slow Code Setup 77 8 16 DCF77 Setup 77 8 17 IRIG B Time Data Setup 78 8 18 Event Deviation Mode Setup 78 8 19 Option Control Setup 79 8 20 Option Control Setup 79 9 1 Rear Panel...

Page 16: ...us Page 170 B 23 NTP Configure Page 171 B 24 NTP Authentication Page 172 B 25 Contact and Version Information Pages 173 B 26 SSH Console Interface Startup Screen 174 B 27 System Configure Page Using SSH 175 B 28 Configure System Password Using SSH 176 B 29 Update Operating System Using SSH 177 B 30 Checking Network Status Using SSH 178 B 31 Configure Network Settings Using SSH 179 B 32 View Operat...

Page 17: ...Levels and Features 39 7 2 Option Board Descriptions 55 8 1 Model 1201B C Menu Structure Upper Keys 61 8 2 Front Panel Setup Menu Definitions 63 8 3 Default Clock Settings 63 9 1 Drive Current vs Voltage 81 9 2 IRIG B Time Code Types Available 82 10 1 Relay Specifications 89 11 1 Status Indications and Definitions 95 11 2 Fault Indications and Definitions 95 11 3 Holdover Oscillator HO Faults and ...

Page 18: ... Antenna Dimensions 120 12 6 Clock and Shipping Weights 121 B 1 Four Configurable Outputs Signal Choices 132 B 2 Four Fiber Optic Output Configuration 134 B 3 Example Output Load and Loop Distance Matrix 138 B 4 B2 Broadcast Time Deviation Values 145 B 5 Output Connectors and Setup Jumpers 151 B 6 Null Modem Cable Connections 155 B 7 NTP PTP Server LED Indications 157 B 8 Partial List of POSIX Tim...

Page 19: ...satellites and detect false GNSS spoofed signals 1 2 1201B C Standard Features With three standard output connectors able to provide unmodulated IRIG B 1 PPS and Pro grammable Pulse the 1201B C has substantial drive capability to supply timing to multiple loads in parallel The Model 1201B C can use two current Global Network Satellite System GNSS re ceivers which include US GPS and Russian GLONASS...

Page 20: ...e 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 Generally these components are protected in their normal situation however some of these are accessible when ...

Page 21: ...B and pull up As the clock packaging expands outward the plastic wrap loosens so you can remove the clock 2 Some of the accessories i e antenna antenna cable and rack mount ears are located below the clock in separate compartments 3 Handle the GNSS antenna carefully as it may be damaged if dropped Space for 1201B C Space for Antenna Cable Other Accessories A B Plastic Wrap Plastic Wrap Shipping Ca...

Page 22: ... mm flat head screws attaching one rack mount ear to the clock cover at the front of the chassis Use either a T25 or large slot screwdriver 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 Right Rackmou...

Page 23: ... 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 The Model 1201B has eight annunciator LED s a two line by twenty character LCD and eight button keypad the Model 1201C adds to the Model 1201B another six character LED for greater visibility The upper ro...

Page 24: ...n values EVENT DEVIATION displays up to 50 event records or continuously updates the 1 PPS deviation data SYSTEM Press the system key to view the clock serial number and firmware version power supply voltage s EEPROM status faults and option board information SETUP Press SETUP to invoke a series of menus used to adjust configurable parameters within the clock In numeric data entry mode moves the c...

Page 25: ... instrument status time date and event data If configured to do so the readout may also display the current configuration of operating parameters 2 2 4 Large LED Display Model 1201C The Model 1201C adds a six character 20 millimeter 0 8 inch LED time and date display The LED display can indicate the time in hours minutes and seconds in local or UTC time zones Pressing the TIME DATE key will also d...

Page 26: ...2 4 Universal Power Supply Inlet Connector L1 DC L2 DC GND 100 350 Vdc 85 264 Vac 47 440 Hz 30 W Typical Low DC Terminal Power Strip with Surge Withstand Protect Circuitry SWC and inlet supply with a range of 22 Vdc to 67 Vdc ONLY see Figure 2 5 Figure 2 5 Low DC Power Supply Inlet Connector DC DC GND 22 67 VDC 30W TYPICAL DC ONLY 2 3 2 Antenna Input Figure 2 6 illustrates the female Type F GNSS a...

Page 27: ... receive A and receive B Figure 2 7 Communication Ports COM1 and COM2 RS 232C and RS 485 COM 1 RS 232C COM 2 2 3 6 SPDT Relay Contacts A set of SPDT relay contacts provide contact closure for a number of clock conditions including out of lock alarm fault stabilized and loss of inlet power Figure 2 8 illustrates three contacts From left to right they are normally closed NC normally open NO and comm...

Page 28: ...d labels to identify purpose The clock serial number is shown to the left of the option panel Figure 2 10 Option Board Interface B1234 Arbiter Systems Serial Number Made in USA OPTION PANEL Each of these options are defined and covered in detail in Appendix B Options List at the pages listed in Table 2 1 below Current options include Option No Option Board Description Page E01 Four Additional Conf...

Page 29: ...position labeled POWER A or POWER B on the rear panel Inlet Specifications 85 Vac to 264 Vac 47 Hz to 440 Hz or 110 Vdc to 370 Vdc 30 Watts Figure 3 1 Universal Power Supply Inlet Description L1 DC L2 DC GND 100 350 Vdc 85 264 Vac 47 440 Hz 30 W Typical 3 1 1 Universal Supply Connecting Inlet Power The power inlet connector has three terminals which can be used for both AC and DC supplies For both...

Page 30: ...ion batteries to this power supply make sure to first connect an earth ground wire to the station ground After connecting a ground wire connect the positive and negative leads to the appropriate battery terminals Note that the clock is energized when you connect the power connector plug to the clock as there is no power switch 3 2 2 Surge Withstand Protection Both the Universal and Low DC power su...

Page 31: ...and through an installed option connector designated as Input For standard I O connectors see Section 2 3 7 and Chapter 5 Terminals are Phoenix type with 5 mm spacing and will accept between 0 25 mm and 2 5 mm diameter wire Optional Four BNC Connectors has four female BNC connectors and allows one connection of an input signal for event timing besides the three output connectors See Appendix B for...

Page 32: ... compass Minimal installations where the antenna is mounted in a less favorable location may work however reception may be limited during certain hours of the day 4 1 1 Mounting the Antenna The standard antenna is designed for pole mounting on a 26 mm pole 1 05 in OD or 0 75 in ID pipe with either a standard 1 in 14 TPI approximately M25 4 mm OD 1 81 marine mount thread or a 0 75 in NPT pipe threa...

Page 33: ...d specifically for use with antennas shipped with Arbiter Systems GNSS synchronized clocks The hardware included with the bracket allows instal lation of the antenna on a mast or pipe up to about 2 inches in diameter A different clamp may be substituted for use with a larger diameter pipe The antenna bracket can be mounted to a wall a roof or any other flat surface using the correct hardware For c...

Page 34: ...na and Cable Information Figure 4 2 Antenna Mounting Bracket Mounting bracklet Mounting bracket stabilizer U bolt backing plate U bolt 3 4 x 4 Sch 80 PVC pipe Antenna cable Figure 4 3 Antenna Mounting with AS0044600 ...

Page 35: ...tus message The message in the display will provide an overall rating of the antenna performance GOOD SHORT or OPEN An acceptable antenna voltage is from 4 9 Vdc to 5 1 Vdc Without a 5 Vdc signal applied to the antenna the GNSS clock will not synchronize with the satellite system and may generate an out of lock alarm if the Out of Lock feature is enabled Also the displayed message will change depe...

Page 36: ...the F connectors which may be sealed with rubber port seals or GE Silicone II compound 4 4 Technical Details of GNSS Antennas and Cables 4 4 1 Length and Loss Considerations Standard Antenna Cable The standard antenna cable assembly included with the clock is constructed using a 15 m 50 ft length of RG 6 type low loss coaxial cable terminated with male Type F connectors Optional lengths of RG 6 co...

Page 37: ...able RG 6 60 ns 5 dB CA0021330 30 m 100 ft cable RG 6 119 ns 9 dB CA0021345 45 m 150 ft cable RG 6 177 ns 13 dB CA0021360 60 m 200 ft cable RG 6 236 ns 17 dB CA0021375 75 m 250 ft cable RG 6 295 ns 21 dB WC0004900 305 m 1000 ft roll RG 11 3 92 ns m 17 5 dB 100 m TF0006400 RG 6 Crimp Tool N A N A TF0006000 RG 11 Crimp Tool N A N A TF0013200 RG 6 Cable Stripping Tool N A N A TF0013300 RG 11 Cable St...

Page 38: ...eeds replacement Do not stretch the cable midair over any appreciable distance without support Cable degra dation or failure could result Always leave a drip loop wherever the cable enters a structure to prevent water from entering the structure via the cable jacket The maximum temperature rating for the type of cable provided with the clock is 75 C 167 F Exercise care when routing the cable near ...

Page 39: ...nd of the antenna cable connects to the female Type F connector on the rear panel of the clock User Supplied Antenna Cables Any RF cable meeting the requirements described above for loss 21 dB at 1575 42 MHz and dc resistance 15 Ω total loop resistance may be used with the clock However prior to using a non standard antenna cable verify proper installation by reviewing Section 4 2 For additional t...

Page 40: ... cover off After setting the necessary jumpers configure the 1201B C in two different ways 1 Using the utility software see Chapter 7 2 Using the front panel keys see Chapter 8 For additional technical detail concerning timing signals please see Chapter 9 5 2 Setting Mainboard Jumpers Figure 5 1 indicates important jumper and test point locations on the mainboard Use this illus tration to assist y...

Page 41: ...JMP2 RS485 SIGNAL SELECT JMP14 FIBER PORT SIGNAL SELECT JMP12 JMP7 JMP9 PORT 1 SOURCE SELECT PORT 3 SOURCE SELECT PORT 2 SOURCE SELECT RELAY CURRENT LIMITING JMP11 R24 PROGRAMMING PORT TP2 GND TP1 5V COM1 COM2 U29 FIBER OPTIC PORT OPTIONAL POWER SUPPLY A POWER SUPPLY B PORT 3 PORT 2 PORT 1 J5 J4 J6 K1 R24 JMP11 J11 J13 J7 J3 PORT 4 JMP1 TP6 TP7 100 kHz REF ANTENNA CONNECTOR ANTENNA LED TP3 TP5 TP4...

Page 42: ...r B user selects resistor R24 JMP12 Port 2 source select A Digital signal out B IRIG B modulated C Event in JMP13 Port 2 digital signal select A 1 PPS B Programmable pulse C IRIG B unmodulated JMP14 Fiber port function select A 1 PPS B Programmable pulse C IRIG B unmodulated Table 5 1 Main board Jumper Table default positions 5 2 2 Digital Outputs Port 1 and Port 3 Ports 1 and 3 provide identical ...

Page 43: ... for each port Port Number Signal Required Jumper Positions 1 1 PPS JMP6 A and JMP7 A Programmable Pulse JMP6 B and JMP7 A 3 1 PPS JMP8 A and JMP9 A Programmable Pulse JMP8 B and JMP9 A Table 5 3 1 PPS and Programmable Pulse Jumper Table 5 2 5 Analog and Digital Outputs Port 2 Port 2 can be configured to produce a modulated IRIG B signal or as an event input by jumper selection Port 2 may also sou...

Page 44: ... can be used to trigger the relay Jumper JMP10 in position B selects for a programmable pulse Jumper JMP11 connects to the common terminal directly or may include a selectable internal resistor R24 in the common line to control relay current To configure which relay clock conditions are active see Sections new entry in ch 7 and 8 5 Relay Function Required Jumper Positions Out of Lock fault alarm s...

Page 45: ...ng 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 Chapter 7 discusses configuring the clock functions remotely using the Utility and Chapter 8 discusses configuring the clock using the front panel interface ...

Page 46: ...liquid crystal display LCD should display several introductory messages see below 3 Initially the SPDT relay should be in the faulted position 4 Eventually the UNLOCKED LED should extinguish 5 The SPDT relay should change to Locked non faulted position after a few minutes 6 The LCD should indicate that the clock is locked 7 After the startup messages the LCD should indicate TIME NOT AVAILABLE unti...

Page 47: ...again fall back into the promiscuous mode To enter the Learn mode see Section 6 2 1 Learn and Normal Modes During the learn mode the clock tracks its position over time looking for anomalies such as a satellite suddenly appearing or disappearing and satellites that are out of position It is during the learn mode that the clock establishes its basis of operation with the GNSS and anti spoofing prot...

Page 48: ...y the United States Naval Observatory USNO as described below UTC 12 34 56 SAT 3 MAY 2014 NOTE Daylight saving and local offset have no effect on this display 6 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 UTC 12 34 56 SAT DAY 123 2014 NOTE Daylight saving and local offset have no effect on this d...

Page 49: ...enna s geographical position 6 4 1 GNSS Tracking To view the number of satellites being tracked use this display GNSS receivers can track up to 32 satellites of the multiple satellite systems GNSS TRACKING GPS 08 GLONASS 06 6 4 2 GNSS Signal to Noise Ratio Signal to Noise describes the signal power to noise power as a ratio in decibels dB For example 40 dB means that the signal power is 10 000 tim...

Page 50: ...eceiver as determined by the last position while locked to at least four satellites Displayed position will be based on the most recent position fix If the clock starts in the demo mode it will not store any previous position information and essentially start over from scratch Synchronization to a minimum of four satellites is necessary for precise determination of longi tude latitude and elevatio...

Page 51: ...rtainty provides estimates of clock accuracy when it is no longer synchronized to the GNSS Uncertainty is a statistic based on time base processor measurements of the local oscillator Select one of the time intervals of interest in minutes 15 30 60 in hours 2 4 8 12 24 and in days 2 4 7 14 30 Selecting one of the time periods will provide the uncertainty for that time period with one exception It ...

Page 52: ...elected press the TIMING key until reaching EVENT DEVIATION then press ENTER Values are continuously updated each second dashes show no input 1 PPS µS SIGMA µS 6 6 System Key Displays Press the SYSTEM key to review the clock identity and systems that support accurate and stable timing These include clock serial number firmware version power supply voltages EEPROM faults and installed option board ...

Page 53: ...nection between the clock and the antenna This fault goes away once the connection is restored FAULT TBP COM ERROR dd mm yyyy hh mm ss An error in communication exists between the TBP and the main processor The fault disappears if communication is reestablished Second line is the time the fault occurred FAULT VCXO FAIL dd mm yyyy hh mm ss The 8 MHz Holdover Oscillator signal is not getting to the ...

Page 54: ...LT HO RECEIVER HO OSC FAIL The Time Base Processor TBP is no longer receiving a signal from the Holdover Oscillator HO 6 7 Inputs and Outputs 6 7 1 IRIG B Time Data IRIG B time is sent out immediately when the clock is powered ON from any timing output port configured for IRIG B Time will not be accurate until the clock is locked to the GNSS See also out of lock indication in Section 2 2 2 and Sec...

Page 55: ...t also be disabled to configure the Model 1201B C using RS 232 commands 7 2 Configuring with 1201 Utility Software The following sections illustrate how to use the Utility to configure the 1201B C 7 2 1 Obtaining the Utility Software To obtain the Utility go to the Arbiter website and select Software Downloads under the Ser vice Support1 menu Scroll down to Timing Software and select Model 1201B C...

Page 56: ...me and position data however will not be accurate To communicate with the Model 1201B C and configure it requires some level of security The 1201B C has six levels of security so that you can protect it from unwanted intrusion For this reason the first topic in this chapter covers 1201B C security Figure 7 1 Utility Software Opening Window Setup Tip In this chapter you may want to start with the M...

Page 57: ...ere 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 Operation from the front panel interface will likewise be limited as shown in the table Level Password Front ...

Page 58: ...G A USB TO SERIAL CONVERTER From the Utility select Settings Serial Port choosing the correct COM port associated with your computer See Figure 7 2 If your computer has its own serial port choose that one If you are using a USB to serial converter choose the one that is associated with your USB to Serial converter Figure 7 2 Connecting with the 1201B C Verify that the baud rate listed under Serial...

Page 59: ...e all of the values in the Utility windows See Figure 7 3 Open selects a file to upload to a connected clock Open a file by selecting File Open or by clicking the Open icon blue folder For more information on uploading a configuration file to the 1201B C go to Section 7 17 Figure 7 3 Reading the 1201B C Configuration If for some reason you get a message that the Utility could not read the clock ma...

Page 60: ... to run in the Promiscuous Mode Secure operation is not possible in the Promiscuous Mode or the Learn Mode Once the clock passes through the Learn Mode it will never again operate in the Promiscuous Mode To initiate the Learn Mode in the Utility menu choose Device then Start the Learn Mode or click the Start the Learn Mode icon Another menu should appear to verify your choice yes or no Once the Le...

Page 61: ...en 7 7 1 Definitions Clock Status Four values are provided for clock status They are 1 whether the clock is in demo or normal mode 2 the time format 3 the date format and 4 the mean clock time quality and sigma Power Supply Provides the voltages for the internal power supplies A or A and B Antenna basic antenna cable status whether good or bad voltage and current supplied to the antenna through th...

Page 62: ...t power cycle current run time and total run time Time quality is a 2σ estimate of accuracy Estimated holdover uncertainty is an estimate of how the clock will drift 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 mom...

Page 63: ... reported fault from the status display The Mask box deactivates the triggering of the specific fault For example if you check the Mask box for Antenna the status message will not appear and recorded message will not be in memory if the antenna is disconnected or fails The Latch box assures that when a specific fault occurs that the status message will persist and not disappear until it is cleared...

Page 64: ...6 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: ...st modes When you click the read icon or select Device Read from the menu the Utility reads all the clock settings Check all of the settings listed under COM1 Port Settings If intending to broadcast a message from COM1 check the Broadcast section and select under Mode from a number of pre configured messages Custom broadcast messages may be created through the scripting as described in Section 11 ...

Page 66: ...dding some new windows to select the start and stop date and time The start and stop times are given in minutes after midnight The start and stop dates are chosen by the week and weekday of the start and stop month DST Background In 2007 the U S Federal Government changed the start and stop dates to increase the number of days allotted to DST Prior to the change DST started at 2 00 a m the first S...

Page 67: ...ble Pulse allows an alternate instance of unmodulated IRIG B with a different time zone and IEEE C37 118 1 setting See Section 7 13 1 to configure a separate and independent instance of unmodulated IRIG B using Programmable Pulse In the IRIG window select a time zone either Local or UTC and the IEEE C37 118 1 setting either ON or OFF Figure 7 11 IRIG B Adjustment Screen IRIG B Connection Timing In...

Page 68: ...ses may be set to transition positively or negatively Single Trigger Specify the time and date UTC or Local for a pulse event Pulse Width Pulse width may be specified in 10 millisecond increments from 10 milliseconds 0 010 seconds up to a full 24 hours depending on mode Pulse Delay Pulse Delay works in the Pulse Per Hour mode It delays the pulse by the selected number of seconds after the top of t...

Page 69: ...ble pulse See Table 5 1 Figure 7 13 Programmable Pulse Seconds Per Pulse Screen 7 13 4 Pulse Per Hour Mode Choose this programmable pulse mode to provide a pulse every X number of seconds after the hour where X can be from 0 to 3 599 seconds Configure the pulse width from 10 milliseconds to 600 seconds After configuring the pulse mode make sure to change the jumper for the chosen port to programma...

Page 70: ...le Pulse Pulse Per Day Screen 7 13 6 Single Trigger Mode Choose this programmable pulse mode to provide a pulse every year at the chosen Julian Day of year hour minute second and fractional seconds Single Trigger polarity may start as either high positive or low negative When the trigger occurs it transitions to the opposite polarity and remains at that value until Single Trigger is deliberately r...

Page 71: ...echnische Bundesanstalt PTB Germany s national physics laboratory and transmits in continuous operation 24 hours It is operated by Media Broadcast 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 sy...

Page 72: ...ntenna status System Delay compensates for the time required for the GNSS signal to travel down the antenna cable to the GNSS receiver plus the antenna group delay Time is given in nanoseconds 10 9 seconds LCD Backlight sets the LCD backlight operation to either ON OFF or Auto mode In Auto mode the LCD backlight will illuminate when a key is pressed and will remain ON for about 30 seconds C Displa...

Page 73: ...not shown in Figure 7 18 will appear Figure 7 18 Option Board Configuration Screen Option No Option Board Description Page E01 Four Additional Configurable Outputs 130 E02 Four Fiber Optic Outputs 133 E03 Eight Channel High Drive IRIG B Outputs 136 E04 Power System Time Frequency and Phase Monitor 141 E05 Four Additional Outputs with Dry Contacts and 25 50 Vdc 149 E06 NTP PTP Server Copper Copper ...

Page 74: ...here are six levels of security 0 1 5 that provide various levels of operation from the front panel keyboard and display and restrict the 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: ...ck the Read icon to download the configuration 3 Select File Save to save a copy of the downloaded configuration 4 Connect the serial cable and possibly USB to serial adapter to the new clock Make sure that the COM port and baud rate settings are correct on the second clock 5 Select Device Write or click the Write icon to upload the saved configuration to the new clock 6 Select Device Verify or cl...

Page 76: ...the event buffer select Device Events Clear Events See Figure 7 21 While broadcasting event records the buffer will continually be overwritten with new data Therefore you would not need to use the Clear feature while broadcasting event data Figure 7 21 Clearing Events in the 1201B C ...

Page 77: ...the 1201 1 Select Device Upload Firmware see Figure 7 22 or click the Upload Firmware button and you will open a file browser window to select the firmware file Normally this should be a zip file 2 Select the file and click Open and a smaller Upload Firmware window should appear see Figure 7 23 3 Click the Upload to Device button and a progress bar should appear indicating the progress of the uplo...

Page 78: ... Utility to save the default configuration to file 1 Disable security to level 0 on the Model 1201B C using the utility software 2 Cycle power on the Model 1201B C OFF then ON 3 Press the Setup key when you see the first message displayed on the LCD and display message should change to MODEL 1201X CLOCK VERSION DDMMMYY Then the display should change to read SET FACTORY DEFAULTS PRESS ENTER 4 Press...

Page 79: ...nfiguration from the keypad is described in following sections Press any one of these four keys to initiate and progress downward through the menu structure TIME DATE ANTENNA TIMING SYSTEM UTC DATE TIME GNSS TRACKING CLOCK STATUS SERIAL NO VERSION UTC DAY OF YEAR GNSS SIGNAL TO NOISE RATIO TIME QUALITY POWER SUPPLY STATUS LOCAL DATE TIME GNSS SETTINGS HOLDOVER ESTIMATED EEPROM STATUS UNCERTAINTY L...

Page 80: ...us Repeatedly pressing SETUP scrolls through the main menus in one direction In numeric data entry mode press SETUP to move the cursor to the left Alternate Menu Navigation Press SETUP once then press UP or DOWN to scroll the main menus in either direction ENTER Key Press ENTER to confirm changes made within setup menus Generally pressing ENTER also advances the next parameter or returns to the pr...

Page 81: ...on 11 Set Option Control Set up auxiliary board option 12 Set C Disp Format Configure the month and day format of the large display of Model 1201C Table 8 2 Front Panel Setup Menu Definitions 8 1 5 Default Firmware Settings When shipped from the factory and unless specified otherwise all models will be configured with default settings Most users elect to modify the clock settings to fit their loca...

Page 82: ...ess any of the upper row of keys to exit the configure menus The figure below illustrates two elements of the setup menu flow chart a larger rounded rect angle and a small oval The larger rounded rectangles represent messages within the clock LCD display and the small oval symbol represents the individual keys of the eight button keypad KEY DISPLAY MENU 8 1 7 Numeric Data Entry Mode Numeric data e...

Page 83: ...0 ENTER UP DOWN ENTER WORD LENGTH 8 BITS STOP BITS 1 UP DOWN ENTER UP DOWN ENTER PARITY OFF COM1 BROADCAST UP DOWN ENTER UP DOWN To continue ENTER BROADCAST MODE INTERROGATE SETUP To exit and go to next menu ENTER CUSTOM YEAR ASCII ASCII QUAL EXT ASCII STATUS EVENT DATA VORNE STD ASCII STD INTERROGATE MODE ODD EVEN OFF 2 1 230400 115200 57600 38400 19200 9600 4800 2400 1200 8 7 SETUP Figure 8 2 Ma...

Page 84: ... 8 3 Local Hour Setup 8 3 1 Set Daylight Saving Time DST DST Summertime settings are a continuation of the SET LOCAL TIME menu shown in Fig ure 8 3 When the menu indicates SET DST SUMMER TIME make sure to follow the instruc tions on the clock display DST menus are illustrated in Figure 8 4 on the next page and are only available if you choose the AUTO selection They do not appear if you choose ON ...

Page 85: ...START MONTH MAR ENTER DEC MAR JAN DOWN UP START WEEK Second SUN of MAR ENTER 3rd from Last 2nd from Last Last Third Second First DOWN UP STOP DAY SUN ENTER STOP MINUTE 0120 ENTER SAT WED SUN 0720 0120 0720 DOWN UP DOWN UP STOP MONTH NOV ENTER DEC NOV JAN DOWN UP STOP WEEK First SUN of NOV ENTER 3rd from Last 2nd from Last Last Third Second First Default setting DOWN UP Figure 8 4 Auto Daylight Sav...

Page 86: ... Unlocked indications include an illuminated red unlocked LED and the SPDT relay switching to the unlocked or faulted condition The relay may also be configured to respond to several other clock conditions which are dis cussed in Section 8 5 For RS 232 command see Section 11 2 12 SET OUT OF LOCK ENTER SETUP OUT OF LOCK TIME 01 Min ENTER 99 MIN 01 MIN ZERO DELAY OFF Default setting DOWN UP Figure 8...

Page 87: ...ble pulse which is discussed below SET RELAY CONFIG ENTER SETUP Default DOWN UP ENTER OUT OF LOCK ON ON OFF DOWN UP FAULT OFF ON OFF DOWN UP ALARM OFF ON OFF DOWN UP STABILIZED OFF ON OFF ENTER ENTER ENTER Figure 8 6 Relay Setup 8 5 1 Triggering the Relay with a Programmable Pulse To work with built in programmable pulse features set up the relay jumper JMP10 as discussed in Section 5 2 4 then set...

Page 88: ...for the delay in time of the GNSS signal received at the antenna to reach the receiver The time delay is entered in nanoseconds 10 9 seconds and includes the antenna group delay and the antenna cable delay Antenna cable delay is a product of the length of the cable and the its velocity factor Without compensating for these delays the time would be slow by this amount To determine or calculate the ...

Page 89: ... the UP DOWN keys for each digit and ENTER as required To complete the installation after you have configured the numerical value keep pressing the ENTER key to move the cursor to the right and exit the menu NOTE Single Trigger transitions from low to high or high to low and remains in that condition until reset Therefore in single trigger mode pulse width does not apply For RS 232 command see Sec...

Page 90: ...ogic high and transitions low Refer to Section 8 8 above for additional detail on the Programmable Pulse settings For RS 232 commands see Section 11 2 10 SET PROG PULSE ENTER SETUP MODE SECONDS PER PULSE DOWN UP ENTER PULSE WIDTH 000 01 DOWN UP ENTER 600 00 000 01 SECONDS PER PULSE 00001 DOWN UP ENTER 60000 00001 TIME UTC DOWN UP ENTER LCL UTC Default Setting PULSE POLARITY DOWN UP ENTER SLOW CODE...

Page 91: ...ditional detail on the programmable pulse modes and entering numerical values For RS 232 commands see Section 11 2 10 SET PROG PULSE ENTER SETUP MODE PULSE PER HOUR DOWN UP ENTER PULSE WIDTH 000 01 DOWN UP ENTER 600 00 000 01 SECONDS AFTER HOUR DOWN UP ENTER 3599 0000 TIME UTC DOWN UP ENTER LCL UTC Default Setting DCF77 modified DCF77 SLOW CODE SINGLE TRIGGER IRIG B PULSE PER DAY PULSE PER HOUR SE...

Page 92: ...tes Seconds Fractional Seconds Programmable Pulse Width and Time Zone Local or UTC For RS 232 commands see Section 11 2 10 SET PROG PULSE ENTER SETUP MODE PULSE PER DAY DOWN UP ENTER HOUR 00 DOWN UP ENTER 23 00 TIME UTC DOWN UP ENTER LCL UTC MINUTE 00 DOWN UP ENTER 59 00 SECOND 00 DOWN UP ENTER 59 00 FRACTIONAL SECOND 00 DOWN UP ENTER 99 00 PULSE WIDTH 0 01 DOWN UP ENTER 600 0 01 DCF77 modified DC...

Page 93: ...u use this mode regular programmable pulse features are disabled Refer to Figure 8 13 when setting up this auxiliary IRIG B mode MODE PP IRIG B DOWN UP ENTER TIME UTC DOWN UP LCL UTC ENTER FORMAT DOWN UP IEEE C37 118 1 STANDARD ENTER SET PROG PULSE SETUP ENTER DCF77 modified DCF77 SLOW CODE SINGLE TRIGGER IRIG B PULSE PER DAY PULSE PER HOUR SECONDS PER PULSE PROG PULSE OFF Default STANDARD Figure ...

Page 94: ...ns only after resetting the single trigger Refer to Section 8 8 above for additional detail on the Programmable Pulse mode and entering numerical values For RS 232 commands see Section 11 2 10 SET PROG PULSE ENTER SETUP MODE SINGLE TRIGGER DOWN UP ENTER HOUR 00 DOWN UP ENTER 23 00 TIME UTC DOWN UP ENTER LCL UTC Default Setting MINUTE 00 DOWN UP ENTER 59 00 SECOND 00 DOWN UP ENTER 59 00 FRACTIONAL ...

Page 95: ...HOUR SEC PER PULSE Default IRIG B TIME UTC POLARITY PROG PULSE OFF DCF77 modified DCF77 ENTER DOWN UP LOCAL UTC ENTER DOWN UP Figure 8 15 Slow Code Setup 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 pro...

Page 96: ...8 17 IRIG B Time Data Setup 8 10 Setting the Event or Deviation Modes Use the SET EVENT DEVIATION menu to set up either the event capture or the 1 PPS deviation mode See Section 5 2 6 for information on setting a jumper for event deviation port selection Use this menu to configure for either event timing up to 50 stored events or one pulse per second 1 PPS deviation including sigma see Section 10 ...

Page 97: ...ptions List in Appendix C for individual option setup instructions 4 BNC Connectors NTP PTP Server 4 Outputs 2 SSR s Time Freq Monitor 8 Hi Drive IRIG Outputs 4 Add Fiber Outputs NONE Default setting 4 Additional Outputs MAIN BOARD NONE DOWN UP FIBER OUTPUT NONE NTP PTP T F Server Figure 8 19 Option Control Setup 8 12 1201C LED Display Date Format Use the SET C DISP FORMAT menu if you have a Model...

Page 98: ...ice receiving it 2 Enable the equipment to receive the timing signal if required Various methods are used to configure equipment to receive IRIG B time codes including setting a physical jumper or using a setup application in the instrument Some equipment can auto detect the timing signal so that nothing else is required other than connecting the cable 9 2 Timing Output Description The rear panels...

Page 99: ...device For example if the IED timing signal input e g IRIG B003 requires 10 mA one digital output should be able to support up to eight identical devices 9 2 3 Analog Driver Modulated IRIG B is available at Port 2 and uses an analog driver exclusively for this purpose Using an AD8531 amplifier the analog driver supplies 4 5 volts peak to peak Vpp to a 20 Ω source resistor then to the output connec...

Page 100: ...ode Types Available The IRIG B time code consists of 100 bits produced every second 74 bits of which contain various time date time changes and time quality information of the time signal Consisting of logic ones zeros and reference bits the time code provides a reliable method of transmitting time to synchronize a variety equipment Three functional groups of bits in the IRIG B time code are arran...

Page 101: ...s To be able to use these extra bits of information protective relays RTU s and other equipment receiving the time code must be able to decode them Consult your equipment manual to determine if the IEEE C37 118 1 feature should be turned ON in the clock To view details of the IEEE Std C37 118 1 please check with the IEEE 9 3 4 1 Pulse Per Second 1 PPS A one pulse per second timing signal is very s...

Page 102: ...s and over current conditions To set timing output jumpers for programmable pulse with 200 V FET see Table 5 1 or 5 4 Next you will need to configure the type of programmable pulse mode and timing through the utility software setup menus 8 8 or serial port 11 2 10 9 3 7 Protecting the 200 V FET Connection Open drain outputs are not internally protected against over current or overvoltage Maximum p...

Page 103: ...ap second 0 2 s P12 P2 P3 parity check bits CET is Central European Time and CEST is Central European Summer Time CET is UTC 1 00 and CEST is UTC 2 00 9 4 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 position...

Page 104: ...G B connections distribution of signals and accuracy download the following file from the same link IRIG B accuracy and connection requirements pdf at the same link above 9 4 3 Synchronizing Multiple IED s From One Masterclock Output In many installations master clock signals are distributed from one output to multiple devices This method makes more efficient use of the clock synchronizing capabil...

Page 105: ...asing load current i e with increased number of loads there is a reduction in available drive voltage at the clock output See also Table 9 1 9 4 6 Wire Losses Another factor affecting the available voltage is the resistive losses through the cabling Wire has a certain resistivity associated with it that is determined by its metallic composition and resistance determined by the diameter and length ...

Page 106: ...ocity factor 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 Using these values you can determine the actual time delay in your cable distribution system and compar...

Page 107: ...rent resistive 8 A at 250 Vac 5 A at 30 Vdc Max switching capacity 2 000 VA 150 W Expected life 50 000 electrical cycles 100 000 typical Min permissible load 10 mA 5 Vdc Table 10 1 Relay Specifications 10 1 2 Relay Operation Several clock conditions may be configured to trigger the Model 1201B C relay These include 1 an out of lock condition with the GNSS 2 a fault 3 an alarm2 4 when the clock is ...

Page 108: ...g with a 32 MHz time base Latency is limited by the interrupt processing speed of the clock s microcontroller which in turn depends on its workload at the time the event is received Since the workload varies from time to time latency likewise varies However response time will in general never be less than a few hundred microseconds nor greater than 10 milliseconds 10 2 3 1 PPS Deviation Measuremen...

Page 109: ...hs describe the steps required to access data using the front panel 1 Press the TIMING key until reaching EVENT DEVIATION menu then press ENTER 2 Press the UP or DOWN keys to scroll through the recorded events CH A EVENT nn TZ ddd hh mm ss sssssss Where nn event number 01 to 25 ddd day of year of the event 1 to 366 hh hour of the event 00 to 23 mm minute of the event 00 to 59 ss sssssss second and...

Page 110: ...ar the buffer from the front panel press the TIMING key four times and ENTER key twice This will cause the display to issue the following prompt CLEAR EVENT YES UP NO DOWN To clear the event buffer from the utility software click the Clear button or go to Device menu and select Clear To clear events using RS 232 commands type the CA command and the buffer will immediately be cleared Clearing the 1...

Page 111: ...d Command Set This section provides information for controlling and communicating with these clocks via the RS 232C serial interface All of the RS 232 commands are functionally grouped into similar categories For example Section 11 2 2 lists all of the commands used to broadcast the date and time in one of the standard formats Each command name and syntax is highlighted in bold at the beginning of...

Page 112: ...o construct one that better matches your requirements For information on constructing installing and using a custom broadcast string please see Section 11 4 Section 11 4 also includes a small tutorial on constructing strings using some of the common strings already available in Section 11 2 2 below 11 2 2 Broadcast Mode Commands Broadcast Mode INTERROGATE Broadcast OFF Command B0 O0 B0 deactivates...

Page 113: ...e Broadcast Mode STATUS FAULT Command B4 O4 B4 configures the clock to broadcast any status fault data from COM1 when it changes O4 configures the clock to broadcast any status fault data from COM2 when it changes Messages sent include date time and system information Examples shown below 0 06 11 2015 22 45 33 Previous Faults 0x0000 Present Faults 0x0100 1 06 11 2015 22 45 33 LOCKED GPS Tracked 07...

Page 114: ...only and graphically represents the location of an ASCII space Broadcast Mode ASCII QUAL Command B6 O6 B6 configures the clock to broadcast from COM1 the time of day as ASCII data appended with a time quality indicator O6 configures the clock to broadcast the same data from COM2 ASCII QUAL means Standard ASCII plus Time Quality Indicator Response soh ddd hh mm ssQC Format soh Hex 01 the start bit ...

Page 115: ... is Active V is Void cs checksum Broadcast Mode NMEA183ZDA Command 1 nB 1 nB configures the clock to broadcast the National Marine Electronics Association Standard NMEA 0183 to broadcast ZDA format from COM1 where n the update rate in seconds from 1 to 9999 ZDA time and date includes the UTC day month year and local time zone Response ZDA hhmmss ss dd mm yyyy xx xx csC Where ZDA Time and date hhmm...

Page 116: ...dd dw hh mm ssC Where dw day of week Broadcast Mode KISSIMMEE MSG Command 1 nTB 1 nTB configures the clock to broadcast the Kissimmee message Telegyr 5700 from COM1 where n the time zone time reported is in UTC format for n 0 and Local for n 1 Response ddd hh mm ssQC Where Q quality indicator with indicators shown below locked maximum accuracy ASCII 46 Error 1 microsecond ASCII 42 Error 10 microse...

Page 117: ... and wrote indices to 0 Response C Return Deviation for Event Channel Command DA DA returns 1 PPS deviation and sigma for the event input Response dddd dd ssss ssC Results are in microseconds Format dddd dd the deviation from 1 PPS GNSS averaged over 16 samples ssss ss the standard deviation sigma of samples Return Single Event Command EA EA returns a single event record from the channel A event b...

Page 118: ...us Command SC SC returns the current clock status Response L U U xx S nnC Format L Clock currently locked to GNSS U for unlocked xx Indicates loss of lock period up to 99 minutes nn User specified out of lock delay 00 to 99 minutes refer to Table A 8 S Off if the out of lock function is deactivated S ZDL indicates zero delay Return DCXO Status Command SD SD returns the DCXO Digitally Compensated C...

Page 119: ... 2 and 11 3 for bit assignments of clock conditions Note examples below S 60 60 F 0040 0040 HO GNSS 00 S 60 00 F 0040 0000 HO GNSS 00 In the two examples above the first response indicates the first interrogation of clock status the second response follows the first and indicates no changes 60 indicates that the Demo mode is active and the clock is stabilized 0040 indicates an antenna fault and 00...

Page 120: ...ystem Log Messages Command 1201DX clears all of the system messages stored in memory 11 2 6 Local Daylight Saving Time Setup Commands Return Daylight Saving Summer Time Settings Command 0DT 0DT returns the current Daylight Saving Summer Time settings to the connected RS 232 port Modes OFF ON or AUTO Response Mode AUTO C START 02 00 Second SUN of MARC STOP 02 00 First SUN of NOVC Set Daylight Savin...

Page 121: ...1 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 y DayOfWeek 0 through 6 with 0 Sun 1 Mon 6 Sat z Minutes after midnight z 0 through 1440 Response C Local Offset Command Command hh mm L hh mm L sets the local offset in hours and fifteen minute increments from 12 00 to 12 00 where hh and mm equals the number of hours a...

Page 122: ...ation Information includes the two digit year local offset time quality and notification of pending non sequence events such as leap seconds and daylight saving time changeovers Response C IRIG Data Local UTC Command IL IU IL configures all IRIG time data outputs to local time code reference IU configures all IRIG time data outputs to UTC time code reference Response C Return Elevation Command LH ...

Page 123: ...th dd day hh hour mm minute Return Local Date Return UTC Date Command DL DU DL returns the current date in the Local time zone DU returns the current date in the UTC time zone Response ddmmmyyyyC Return Local Time Return UTC Time Command TL TU TL returns the current Local time TU returns current UTC time Response ddd hh mm ssC NOTE The DL DU TL and TU command formats are identified as follows yyyy...

Page 124: ...rogrammable pulse in the Local timezone If ddd is set to 0 the pulse will repeat daily at the specified time If ddd is set from 001 to 366 the output pulse will be generated at the next occurrence of the specified time and date Response C Format ddd day of year 1 through 366 hh hour 0 through 23 mm minute 0 through 59 ss second 0 through 59 ss fractional seconds in 0 01 increments 00 through 99 OU...

Page 125: ... output via rear panel connector if Option 93 is installed A negative number turns the out of lock function OFF n 0 sets the out of lock time to zero delay n 1 to 99 sets the amount of delay time in minutes Response C 11 2 13 Miscellaneous Commands Return Firmware Version Command V V returns the firmware version date of the installed ROM Response dd mmm yyyyC Return Display Buffer Command Z Z retu...

Page 126: ...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 Dashes are used to show either an unassigned or unconnected port IP...

Page 127: ...ference 11 4 1 Installing a Custom String 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 command to create a Custom B string Available characters and controls that may define these strings are listed in Table 11 7 followed by custom ...

Page 128: ... o Local minute offset 0 59 minutes Pi Latitude where i 1 degrees dd 2 Minutes mm 3 Fractional minutes mmmm 4 Seconds ss 5 Fractional seconds fff 6 N North or S South pi Longitude where i 1 degrees ddd 2 minutes mm 3 fractional min utes 4 seconds ss 5 fractional seconds fff 6 E East or W West r Carriage return and line feed Sii String Type where ii 01 Status change 02 Vorne Opt28 03 Opt28 ASCII 04...

Page 129: ...ime not reliable 1011 B 10 seconds 1010 A 1 second 1001 9 100 milliseconds time within 0 1s 1000 8 10 milliseconds time within 0 01s 0111 7 1 millisecond time within 0 001s 0110 6 100 microseconds time within 10 4 s 0101 5 10 microseconds time within 10 5 s 0100 4 1 microsecond time within 10 6 s 0011 3 100 nanoseconds time within 10 7 s 0010 2 10 nanoseconds time within 10 8 s 0001 1 1 nanosecond...

Page 130: ...xample Ordinal 02 This ordinal consists of 5 different accuracy values as listed in Table 11 9 A T01 d h m s 02 r Ordinal 03 This ordinal consists of three different time zone values DST active i e Daylight Saving Time DST inactive i e Standard Time and UTC time A T01 d h m s 03 DST Active DST Inactive UTC r Conditional 03 In this condition the clock is queried for a locked condition It answers tr...

Page 131: ...m and s follow and include a r for carriage return line feed 55 immediately follows the r then a d for Julian day followed by another r 11 immediately follows the r followed by a U for unlock time and r for another carriage return line feed Lastly the T07 specifies the on time character as the Hex 07 which sounds the bel in the machine Note that the 44 55 and the 11 are not preceded by a since the...

Page 132: ... conditional meaning that you have values separated by a OR and in this case at last is a ELSE For ASCII Qual there are four OR conditions specific time quality ranges followed by one ELSE worst quality range The initial ordinal is a space meaning maximum time quality followed by a a a and finally by the ELSE condition of a A carriage return line feed r ends the string ASCII Year Desired Output so...

Page 133: ...essor used in the TBP is designed for hard real time requirements as well as extremely fast execution of critical code Additionally since the TBP does not have to support the system level clock operation user interface and I O control the TBP does not have changes in the system level impacting the TBP operation This chosen architectural separation also allows easy porting of TBP functionality into...

Page 134: ...n supplies on six separate and independent outputs on the large connector block Each output driving up to 75 mA at TTL CMOS levels there is ample drive power for numerous relays and other IEDs Note that each of the three TTL CMOS outputs are individually configurable with two independent instances of IRIG B There are two serial outputs with two RS 232 serial ports and one RS 485 embedded in COM1 O...

Page 135: ...Pulse or Event Input jumper selectable Port 2 IRIG B modulated 1 PPS Programmable Pulse IRIG B unmodulated or Event Input jumper selectable Port 3 IRIG B unmodulated 1 PPS Programmable Pulse or Event Input jumper selectable 12 3 2 Standard Output Signals IRIG B 1 kHz modulated 4 5 Vpp 3 Vpp with 50 Ω load 20 Ω source impedance IRIG B 5 V CMOS level shift unmodulated 10 Ω source impedance 75 mA dri...

Page 136: ...ical Min permissible load 10 mA 5 Vdc Table 12 1 Relay Specifications 12 4 System Interface For a list of COM1 serial port pins and assigned functions see Table 12 2 For a list of COM2 serial port pins and assigned functions see Table 12 3 Pin Number Function Pin Number Function 1 Not Connected 6 RS 232 Input 2 RS 232 Rx Data 7 Not Connected 3 RS 232 Tx Data 8 RS 422 485 Tx A 4 RS 232 Output Prog ...

Page 137: ...g bracket available to mount on 60 mm 2 in nominal pipe P N AS0044600 see section 4 1 2 12 5 1 Antenna Cable 15 m 50 ft cable included with antenna Other cable styles and lengths available see Table 4 2 under Available Antenna Cables and Accessories for Longer Runs 12 6 Operator Interface 12 6 1 Setup Methods Clock setup Via RS 232C Interface use supplied utility software 8 Front panel keys NTP PT...

Page 138: ... 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 Time and Date UTC or Local Year date Day of year Option control and monitoring Position latitude longitude and elevation Event time and 1 PPS deviation Timing learn and normal mode time quality event deviation Status clock serial number power supply EEPROM fau...

Page 139: ... 5 kg 10 lb includes antenna cables and accessories shipping 5 5 kg 12 lb includes antenna cables and accessories shipping Table 12 6 Clock and Shipping Weights 12 7 2 Weight 12 8 Temperature and Humidity Component Operate Storage Model 1201B C 40 o C to 65 o C 40 o C to 85 o C Antenna 40 o C to 85 o C 55 o C to 100 o C Antenna Cable 40 o C to 75 o C 40 o C to 80 o C Humidity Non condensing ...

Page 140: ...ee position Terminal Power Strip and Surge Withstand Capability Low DC 22 Vdc to 67 Vdc dc only 30 W typical Uses a three position terminal strip and Surge Withstand Capability 12 9 1 Power Inlet Connector Uses a 3 pole terminal strip power inlet with Surge Withstand Capability see Figure 2 4 and 2 5 12 9 2 Electro Magnetic Interference EMI Conducted Emissions power supplies Options A01 B01 and A0...

Page 141: ...g strikes or other electrical events Antenna Receiver Surge Arrester Grounding Block AS0094500A Figure A 1 GNSS Surge Arrester A 1 Description The AS0094500 is a three terminal device with two type F connectors and one ground terminal One of the F connectors connects to the GNSS antenna and the other F connector to the GNSS receiver in the clock A screw terminal provides a point to connect an eart...

Page 142: ...uld be avoided due to greater signal loss and poorer shielding at the GNSS frequency 1 575 42 GHz A 2 4 Weather Sealing the Connections To protect from weather use only type F connectors with appropriate sealing features Typically this includes an o ring in the male connector that seats against the face of the female connector on the surge arrester Also crimped connectors frequently include a sili...

Page 143: ... 3 Physical Dimensions 125 Structure GPS Antenna To GPS Clock Receiver 50 mm 15 mm Antenna Receiver Surge Arrester Grounding Block AS0094500A Figure A 2 Suggested Mounting of the AS0094500 Surge Arrester ...

Page 144: ...ce numbers may be different for the other clock models Additionally there will be references to certain capabilities and specifications that apply only to specific clock models when using these options For example with Four Additional Outputs there will be a large list of possible signals that can be selected with the option board jumpers Many of these signals do not apply to the Model 1201B C ser...

Page 145: ...iewed from rear Block Size 25 mm W 15 mm H 18 mm D 0 98 in 0 59 in 0 71 in Approvals U L recognized C S A approved For AC operation input line may be connected between and without regard to polarity however proper grounding should always be employed Fuse Arbiter P N FU0003001 Current Rating 3 15 A Time Lag Voltage Rating 500 Vac 400 Vdc Size 5 mm 20 mm Surge Withstand Protection SWC Provides input...

Page 146: ... B 2 Low DC Power Supply Inlet DC DC GND 22 67 VDC 30W TYPICAL DC ONLY B 3 2 Specifications Input Power DC Voltage 22 Vdc to 67 Vdc Input Power 20 Watts typical Terminal Strip Terminal Assignment Ground Left to right viewed from rear Block Size 25 mm W 15 mm H 18 mm D 0 98 in 0 59 in 0 71 in Block Material Glass filled thermoplastic Screw Size 6 32 1 4 in Screw Material Cadmium plated steel Termin...

Page 147: ...iber optic output is available with Type ST connector and 820 nm transmitter compatible with multimode 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: ...urn off the instrument and disconnect the power cord Using a T25 Torx driver remove the eight screws holding the cover and rack mount ears if used in place and lift the cover off B 6 3 General Information Output selection incorporates is extremely flexible using jumpers on the option board Each of the four rear panel BNC type I O connectors found on the rear panel can be configured to perform any ...

Page 149: ...or digital and B for analog Choose jumper JMP13 to select for Model 1088B and choose JMP14 to select for Model 1084 1093 or 1201 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 JMP5 JMP6 JMP7 JMP8 JMP1 JMP2 JMP3 JMP4 JMP9 JMP10 JMP11 JMP12 JMP13 JMP14 1088 1084 1093 1201 Rev B J2 J3 J4 J5 Figure B 3 Jumper Configuration ...

Page 150: ...t 10 10 kPPS 10 000 PPS square wave synchronous to the 1 PPS output 11 1 kPPS 1 000 PPS square wave synchronous to the 1 PPS output 12 100 PPS 100 PPS square wave synchronous to the 1 PPS output 13 60 PPS 60 PPS square wave synchronous to the 1 PPS output 14 50 PPS 50 PPS square wave synchronous to the 1 PPS output 15 10 PPS 10 PPS square wave synchronous to the 1 PPS output 16 IRIG D 1 PPM IRIG f...

Page 151: ...gnal is HI Transmitter bandwidth is compatible with all available logic signals Cover Removal To change the configuration of this option the top cover of the instrument must be removed Turn off the instrument and disconnect the power cord Using a T25 Torx driver remove the eight screws holding the cover and rack mount ears if used in place and lift the cover off B 7 2 Output Jumper Enable JMP2 JMP...

Page 152: ...0 kPPS 3 4 8 10 kPPS 3 4 9 1 kPPS 3 4 10 100 PPS 3 4 11 60 PPS 3 12 50 PPS 3 13 10 PPS 3 4 14 1 PPM 3 4 15 1 PPH 3 4 16 1 PPS 1 2 3 4 17 Prog Pulse 1 2 3 4 18 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: ...B 7 Four Fiber Optic Outputs 135 Figure B 4 Jumper Locations ...

Page 154: ... load current each channel will drive 25 Schweitzer SEL 3xx in parallel or 50 SEL 2xx in series parallel relays at 10 mA per relay Maximum Load per driver Modulated No Limit will drive a short circuit Unmodulated 250 mA peak current pulse by pulse shutdown if load current exceeds internal limit self resetting Output Connector 16 position pluggable 5 mm Phoenix type terminal strip with eight 2 posi...

Page 155: ...B 8 8 Channel High Drive IRIG B Amplifier 137 Figure B 5 8 High Drive Outputs Jumper Locations ...

Page 156: ...8719 8720 8718 Non Shielded 8205 8461 8471 8473 8477 Total Loop Output Load and Voltage Drop SEL Relays 1 Loop Length ft Resistance at 0 25 V drop at 0 5 V drop I mA SEL 2xx 2 I mA SEL 3xx AWG20 AWG18 AWG16 AWG14 AWG12 10 Ω 25 2 50 5 500 800 1200 2000 3000 5 Ω 50 5 100 10 250 400 600 1000 1500 2 5 Ω 100 10 200 20 125 200 300 500 750 1 Ω 250 25 500 3 50 50 80 120 200 300 Table B 3 Example Output Lo...

Page 157: ...er or less Note 1 Shielding is optional However if shielding is used connect drain wire at source end of cable to a local surge ground Maintain shielding throughout bus by connecting drain wires together at each junction or drop point Do not connect drain wires at ends of cables Do not connect drain wires to signal wires Do not connect shield to ground at more than one location as this may result ...

Page 158: ...ing lines are short 5 Ω or less loop resistance then no further analysis is required As with unmodulated signals two or more drivers may be paralleled if desired Unlike the current limited unmodulated IRIG B drivers the modulated IRIG B drivers are impedance limited and will operate properly into any load impedance including a short circuit If the loop resistance is greater than 5 Ω then it may be...

Page 159: ...s body not by the rotating locking ring and rotate it inside the twin BNC connector until you feel it begin to mate with the twin BNC input of the option assembly Once the connectors begin to mate then use the locking ring to secure the connectors together 2 Strip the unterminated end of this cable and prepare it as required for termination to your System Reference signal Do not connect the shield...

Page 160: ... less than 1 which is the typical performance of this measurement Amplitude accuracy is not guaranteed and amplitude measurements are provided primarily to verify that the unit is properly connected and receiving the expected signal level B 9 6 Phase Calibration Phase calibration has been performed at the factory and the calibration factor which must be entered into the clock non volatile memory f...

Page 161: ...and are repeated here for emphasis C Shorthand for Carriage Return Line Feed U UTC Time Channel A or B L Local Time Channel A or B Fifteen 15 RS 232 commands are available with this option The following conventions apply to all RS 232 communications Phase angle in all messages is defined as zero or 360 for the positive going zero crossing coincident with 1 PPS GNSS and is scaled between zero and 3...

Page 162: ...returns the system time Response MM DD YYYY hh mm ss ssss SSC Where MM Month ss ssss seconds DD Day of Year SS UTC seconds YYYY Year hh hour mm minute Set System Time UTC Command SU SU sets the option to reflect system time in UTC format Response C Set Option System Time Local Command SL SL sets the option to reflect system time in local format Response C Return System Status Command SM SM returns...

Page 163: ...on is implied The displays are configured to show the decimal point in this position Time Deviation is output in two formats in the same data stream 33 s ss and 34 sss sss Output for the 33 s ss format will be 9 bb when the measured value exceeds 9 99 b blank It will be 9 bb when the measured value is less than 9 99 Output for the 34 sss sss format will observe the following conventions for out of...

Page 164: ...er second in True Time format OT configures COM2 to broadcast Time Time Quality and Frequency once per second in True Time format Response broadcast mode UTC SOH DDD HH MM SSQTsDS thmFsU thmC Where SOH ASCII start of header character 01h DDD Day ASCII colon 3Ah HH Two digits of the hour of day MM Two digits of the minute of day SS Two digits of the second of day Q Quality Sentry character space 20...

Page 165: ...ponse C Where p Phase Offset in degrees k Security Key e g 1201 Set Voltage Amplitude Correction Command v kRV v kRV sets the system voltage amplitude correction Response C Where v Voltage correction per unit with 1 000 000 equal to no correction k Security Key e g 1201 Return Time Frequency Phase Deviation with UTC Time Command nPD nPD returns the System Time Frequency and Phase Deviation with a ...

Page 166: ... 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: ...tors accept wire sizes of 0 25 to 2 5 mm2 AWG 12 to 22 See Table B 5 and Figure B 7 for Connector Configuration Digital Outputs Output Quantity 4 Output Type 5 V CMOS individually configurable Output Rating 5 V open circuit nominal 75 mA peak current per channel 3 5 V typical at 75 mA peak current Available Output Sig nals Jumper selectable to any of the digital signals available from the clock ma...

Page 168: ...und for non grounded load See Table B 10 2 Operating Modes of SSR Outputs Operating Modes of SSR Outputs Mode Dry Contact Closure 1 SSR Output 1 Connect load to pins 10 and 11 polarity not important 2 SSR Output 2 Connect load to pins 14 and 15 polarity not important Mode Contact Closure to Ground 1 Short pins 9 and 10 connect load to pin 11 2 Short pins 13 and 14 connect load to pin 15 Mode 25 50...

Page 169: ...Output 2 JMP6 Signal Select Default 1 PPM 15 SSR Output 2 JMP8 Standard 50 ms Default 50ms 16 Leftmost 25 50 Vdc 2 JMP11 25 50 Vdc Default 50 Vdc Table B 5 Output Connectors and Setup Jumpers B 10 3 Firmware Configuration 1 It is necessary to verify the configuration in the Option Setup Menu so the option is recognized 2 Apply power and observe the front panel display when TIME NOT AVAILABLE is di...

Page 170: ...move rack ears if equipped and remove top cover using a T25 Torx driver 4 screws 3 Locate the appropriate jumper using Figure B 6 and move the jumper to the desired setting 4 Replace the top cover and rack ears if equipped 5 Connect the power cord to the rear panel and set the line power switch to ON position if equipped Figure B 6 Option Jumper Locations ...

Page 171: ...B 10 Four Additional Outputs and Dry Contacts 25 50 Vdc 153 Figure B 7 Option Connector Signal Locations ...

Page 172: ...ation Time is distributed over the network interface to computers controllers and other equipment needing the correct time The NTP PTP Server allows a secure connection to configure using either the preferred HTTPS Web Interface or using the SSH Console Precision Time Protocol PTP Server The NTP PTP Server allows the clock to act as a Precision Time Server PTP according to Standard IEEE 1588 2008 ...

Page 173: ...0 Gateway xxx xxx xxx xxx Port 2 IP address DHCP xxx xxx xxx xxx Selecting the NTP PTP Server in Clock Before you can use the NTP PTP Server in your clock make sure that it is selected as an option Check the configured option using the 1201 Utility software under the Option tab Select NTP PTP Server in the drop down window Selection may be also checked at the front panel with security disabled by ...

Page 174: ...th the Web Interface See Section B 11 3 for details on using the web interface NTP Status Display Indications During the stabilization process the clock will display different status messages that indicate whether the NTP server is ready to serve time Clock stabilization requires the clock to be locked to the GNSS for a period of time after which it will provide its time to the NTP PTP Server To v...

Page 175: ...g RS 232 Commands Type IP in the terminal window and the clock should return the IP and MAC addresses for both ports in separate lines The IP command will return dashes for an IP address when no cable is connected to that port NTP PTP Server LED Indications To view the NTP PTP Server Status LEDs see the NTP PTP Server rear panel The figure and Table B 7 below describe the indications LED Name Colo...

Page 176: ...settings Logging in to the 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 Default Port Addresses Port 1 NET1 192 168 000 232 Port 2 NET2 DHCP 1 Connect an Ethernet cable between one of the Ethernet ports on t...

Page 177: ... reboot the clock After making any changes to the NTP service you may experience a delay of up to five minutes for the NTP service to start Startup Page System When logging in to the NTP PTP Server using the web interface the opening screen should be the System Status information page This provides an overview of the operation of the NTP PTP Server Figure B 8 illustrates the opening System Status ...

Page 178: ... 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 Just as the receiving device must convert the NTP PTP time as it arrives at the device to local time zone so the clock time in the web interface can display local time A number of time zone settings are found in Section B 11 7 Figu...

Page 179: ...10 Configure HTTPS Enable Timeout for Web Interface See Figure B 9 Check the box adjacent to Enable Session Timeout if you want the NTP PTP Server to automatically log off of the web interface after a predetermined number of minutes Minutes are declared in the adjacent box from minimum of 3 to a maximum of 1440 Console Interface See Figure B 9 Check the box adjacent to Enable Session Timeout if yo...

Page 180: ...s To update any NTP PTP Server firmware package follow these instructions From Figure B 9 select the Update tab and click the Choose File button shown in 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 Ser...

Page 181: ...he IP addresses MAC addresses and some standard data traffic statistics NTP PTP Clock Network Support Logout System Status Configure NTP PTP Server Module SNMP Ethernet Port 1 Not Active IP Address 10 10 1 144 MAC Address 64 73 E2 00 18 F2 Rx 134282 1301 0 9 Tx 157620 840 5 0 Bytes Packets Errors Dropped Ethernet Port 2 IP Address 10 10 1 145 MAC Address 64 73 E2 00 18 F3 Rx 5626446 37801 0 462 Tx...

Page 182: ...ress 64 73 E2 0018 F2 Mode DHCP Static Status Configure NTP PTP Server Module Enable VLAN Ethernet Port 2 MAC Address 64 73 E2 0018 F3 Mode DHCP Static Address Netmask Gateway Enable VLAN 192 168 0 232 255 255 255 0 Apply Reset SNMP Figure B 15 Configure Network Settings Configure VLAN To configure VLAN network settings follow these instructions Check the box to the left of Enable VLAN to open the...

Page 183: ...0 April 2014 12 26 30 PDT Time Quality Satellites Tracked Satellites Visible Leap Seconds Current GNSS UTC Offset Status Locked 16 18 16 Not Pending SNMP 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 Clock Network Support Logout ...

Page 184: ...me Set System Time Change Zero Satellites visible NTP Application Start NTP Application Stop PTP Application Start PTP Application Stop SNMP Application Start SNMP Application Stop Trap Receivers IP Address 1 IP Address 2 IP Address 3 10 10 1 236 Apply Reset Figure B 19 SNMP Configuration Page Checking the box enables the specific item unchecking disables the specific item in the SNMP Configure pa...

Page 185: ...is referenced to International Atomic Time TAI from the French name Temps atomique international The time offset may change from time to time when leap seconds are added Figure B 20 illustrates the status of PTP NTP PTP Clock Network Support Logout System Status Configure NTP PTP Server Module SNMP PTP Service Current UTC PTP Offset Enabled Running 35 Figure B 20 PTP Status Page ...

Page 186: ...onfigure NTP PTP Server Module SNMP Enable PTP Service Domain Number Announce Interval Sync Interval Min Delay Request Min Peer Delay Request Announce Receipt Timeout Delay Mechanism Protocol 0 2 2 2 2 3 PTP UDP IPv4 6 20 10 128 Apply Reset Clock Class Clock Accuracy Priority 1 Priority 2 Enable Power Profile Hide Advanced Organization Sub Type Grandmaster ID Grandmaster Time Inaccuracy Network Ti...

Page 187: ...ifies the time recommended to the member devices to send delay request messages when the port is in the master state The range is 1 second to 6 seconds The default is 5 32 seconds Peer Delay Request allows the requesting device to calculate the propagation delay for the individual segment Announce receipt timeout specifies the number of seconds the announce interval has to pass without receipt of ...

Page 188: ...ts the amount to adjust the local clock to bring it into correspondence with the reference clock Frequency frequency offset PPM relative to hardware clock System Jitter psi is defined as the root mean square RMS average of the most recent offset differences and it represents the nominal error in estimating the offset of the system Clock Jitter is defined as the root mean square RMS average of the ...

Page 189: ...e NTP Version include Versions 1 2 3 and 4 Multicast and Broadcast addresses may be typed in the assigned boxes Option 34 Network Time Module Status Configure NTP PTP SNMP Clock Network System Support Logout Authentication NTP Version Multicast Address Broadcast Address Ethernet Port 1 Ethernet Port 2 4 Apply Reset Figure B 23 NTP Configure Page ...

Page 190: ...revents them from updating the local clock NTP authentication is disabled by default Option 34 Network Time Module Status Configure NTP PTP SNMP Clock Network System Support Logout Authentication Apply Reset M Enable Authentication M M M M Key Table ID Format Key Trusted Figure B 24 NTP Authentication Page There are four authentication formats S N A M with different rules for each of the keys For ...

Page 191: ... CA 93446 805 237 3831 800 321 3831 US Canada Mexico only Mon Thu 7 00am 5 30pm Pacific Time www arbiter com techsupport arbiter com NTP PTP Clock Network Support Logout System Contact Version NTP PTP Server Module SNMP Web Management Core Modules Option 34 35 Auth01 Option 34 35 Data Server Firmware Hardware Option 34 Startup App System Monitor CLOI Arbiter 1201 Board 01 462 1 4 1 4 1 4 1 4 2 0 1...

Page 192: ...e NTP PTP Servers Figure B 26 illustrates the opening page User ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Logout Status Configure Password Update Reboot System Time System Time Offset Time Quality NTP PTP SNMP SNMP Traps Temperature 14 28 33 05 19 2014 114us Locked Running Enabled Running Enabled Running Enabled 33 3C Figure B 2...

Page 193: ... ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Logout Status Configure Password Update Reboot Web Interface HTTP HTTPS Port 80 Enable Session Timeout Console Interface Enable Session Timeout Miscellaneous X Respond to Ping Requests Time Zone Setting PST8PDT7 Apply Reset Figure B 27 System Configure Page Using SSH Configure HTTPS Pag...

Page 194: ...m 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 NTP PTP Figure B 28 Configure System Password Using SSH ...

Page 195: ...elow in brackets Server 10 10 1 149 Port 22 Username user Filepath User user Desktop opt34 tps 02 08 update 00 07 apf Type the values as indicated in the Update window The server is considered remote since the Option 34 is pulling a file from the server In this example the server was a local computer on the same subnet as the Model 1201 Depending on your network and DNS configuration you may enter...

Page 196: ...addresses and some standard data traffic statistics Computer Name ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Logout Status Configure Ethernet Port 1 IP Address 10 10 1 145 Hardware Address 64 73 E2 00 17 38 Bytes Packets Errors Dropped Rx 2649123 39782 0 110 Tx 1554398 11894 5 0 Ethernet Port 2 Not Active IP Address Hardware addr...

Page 197: ...otocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Logout Status Configure Ethernet Port 1 Hardware Address DHCP Static IP Address Netmask Gateway Enable VLAN Ethernet Port 2 Hardware Address DHCP Static X Enable VLAN VLAN ID 0 VLAN Priority 0 64 73 E2 00 18 F2 192 168 000 232 255 255 255 0 64 73 E2 00 18 F3 Apply Reset Figure B 31 Configure Network Settings Using SSH Enable V...

Page 198: ...Quality Satellites Tracked Satellites Visible Leap Seconds Current GPS UTC Offset Status Locked 26 23 16 Not Pending Figure B 32 View Operation Using SSH SNMP Status Use the cursor keys to select SNMP then Status and press ENTER to view the SNMP status as illustrated in Figure B 33 Computer Name ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System...

Page 199: ...Figure B 34 PTP Status Page Using SSH Configure PTP Service Please use the Web Interface to configure PTP See Section B 11 3 for more information NTP Status Page Use the cursor keys to select NTP then Status and press ENTER Figure B 35 illustrates the status page for NTP Computer Name ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Lo...

Page 200: ... the clock Clock wander is the RMS of exponentially weighted frequency differences This is not used directly but can along with the jitter be a highly useful monitoring and debugging tool Stratum the level of each server in the hierarchy is defined by a stratum number Primary servers are assigned stratum one NTP Configure To configure NTP follow these instructions Use the cursor keys to select NTP...

Page 201: ... local clock NTP authentication is disabled by default Computer Name ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Logout Status Configure Authentication X Enable Authentication Key Table ID Format Key Trusted M M M M M Apply Reset Figure B 37 NTP Authentication Page Using SSH There are four authentication formats S N A M with diffe...

Page 202: ...805 237 3831 Mon Thu 7 00am 5 30pm Pacific Time www arbiter com techsupport arbiter com Computer Name ssh clockoption IP address 80x24 Time Protocol Server ARBITER SYSTEMS NTP PTP SNMP Clock Network System Support Logout Contact Version Update Log Console Management Core Modules Auth01 TPS UI Content Firmware Hardware Startup App System Monitor CLOI Arbiter 1201 Board 01 462 2 5 2 2 2 2 1 3 1 4 1 ...

Page 203: ...nt SNMP v2 Additional Operations and Features GetBulkUsed by the NMS to efficiently retrieve large blocks of data InformAllows one NMS to send trap information to another NMS and to then receive a response SNMP v3 Security Enhancement User based Security Model USM for SNMP message security View based Access Control Model VACM for access control Dynamically configure the SNMP agents using SNMP SET ...

Page 204: ...nmp service active Enable SNMP Traps Select this item to make any snmp trap active 1 Enable System Start notifies when the System i e NTP PTP Server starts up 2 Enable System Stop notifies when the System i e NTP PTP Server stops 3 Enable Admin Login notifies when someone logs in to the NTP PTP Server 4 Enable Admin Logout notifies when someone logs out from the NTP PTP Server 5 System Time Qualit...

Page 205: ...ENTION TruthValue FROM SNMPv2 TC The position within the OID hierarchy of this MIB arbiter OBJECT IDENTIFIER enterprises 39849 sys MODULE IDENTITY LAST UPDATED 201205250000Z ORGANIZATION Arbiter Systems CONTACT INFO Arbiter Systems Inc Paso Robles CA Tel 1 805 237 3831 DESCRIPTION This MIB module defines a MIB which provides general information about an Arbiter Systems product arbiter 1 device OBJ...

Page 206: ...ATUS current DESCRIPTION String identifier for the General Information group device 1 sysDevProduct OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION The product family on which this agent is running device 2 sysDevModel OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION The device model device 3 sysDevSerialNumber OBJECT TYPE SYNTAX OCTET...

Page 207: ... sysDevVerCLOI OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION The device model version 4 sysDevVerClock OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION The device model version 5 sysDevVerNTP OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION The device model version 6 sysDevVerPTP OBJECT TYPE SYNTAX OCTE...

Page 208: ...he current temperature of the device diag 2 sysDiagTimeQuality OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION Clock time quality status diag 3 sysDiagNtpStatus OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS read only STATUS current DESCRIPTION The operational status of NTP diag 4 rec1 OBJECT IDENTIFIER gnss 1 gnssRec1Label OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS rea...

Page 209: ...rent DESCRIPTION System powering up systrap 1 systrapShutDown OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS accessible for notify STATUS current DESCRIPTION System shutting down systrap 2 systrapAdminLogin OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS accessible for notify STATUS current DESCRIPTION System administrative login systrap 3 systrapAdminLogout OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS acces...

Page 210: ...ysClockDateTime 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 ntpsys 3 ntpSysOffset OBJECT TYPE SYNTAX Integer32 MAX ACCESS read only STATUS current DESCRIPTION ntpsys 4 ntpSysFreq OBJECT TYPE SYNTAX MilliUnits MAX...

Page 211: ...r relative to the primary reference source at the root of the synchronization subnet in seconds Only positive values greater than zero are possible ntpsys 10 ntpSysLeap OBJECT TYPE SYNTAX Integer32 MAX ACCESS read only STATUS current DESCRIPTION two bit code warning of an impending leap second to be inserted in the NTP timescale ntpsys 11 ntpSysStratum OBJECT TYPE SYNTAX Integer32 0 255 MAX ACCESS...

Page 212: ...PE SYNTAX OCTET STRING MAX ACCESS accessible for notify STATUS current DESCRIPTION NTP server shutting down ntptrap 2 ntptrapSynchronized OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS accessible for notify STATUS current DESCRIPTION NTP server synchronized to GNSS ntptrap 3 ntptrapSynchronizationLost OBJECT TYPE SYNTAX OCTET STRING MAX ACCESS accessible for notify STATUS current DESCRIPTION NTP serve...

Page 213: ...pSysRefTime the local time when the local clock was last updated If the local clock as never been synchronized the value is zero ntpSysPoll the minimum interval between transmitted messages in seconds as a power of two For instance a value of six indicates a minimum interval of 64 seconds ntpSysPeer the current synchronization source Usually this will be a pointer to a structure contain ing the pe...

Page 214: ... Network Two Ethernet Version 2 0 IEEE 802 3 10 100BT or multimode SSF modules Protocols NTP SNTP PTP IEEE 1588TM 2008 UDP ICMP SNMP TCP SSH SCP SSL HTTP HTTPS Operator Interface Management Web and SSH Console Status LEDs Sync green Fault red Link green 10baseT yellow 100baseT Setup IP number DHCP or Static Net Mask Reference Identifier UDP Broadcast parameters MD5 and DES authentication keys are ...

Page 215: ...eenland Standard Time GST3 Korean Standard Time KST 9KDT Newfoundland Standard Time NST3 30NDT China Coast Time CCT 8 Atlantic Standard Time AST4ADT Hong Kong Time HKT 8 Western Standard Brazil WST4WDT Singapore Standard Time SST 8 Eastern Standard Time EST5EDT Western Australian Standard WAS 8WAD Chile Standard Time CST5CDT Java Standard Time JST 7 30 Acre Standard Time AST5ADT North Sumatra Time...

Page 216: ...input connector The three BNC outputs are connected in parallel with the existing pluggable terminal strip outputs while the fourth connector provides a BNC event deviation input and cannot be configured as an output The standard pluggable terminal strip outputs are still usable but both connectors now share the drive capability Physical Configuration The connectors are mounted on an option plate ...

Page 217: ... examples the symbol B denotes the command prompt C 1 1 Step 1 Generate a Private Key The following command will generate a 1024 bit RSA private key Please keep this file safe secure and not accessible to the public Bopenssl genrsa out private key 1024 The generated file private key might look like the following BEGIN RSA PRIVATE KEY MIICXgIBAAKBgQDPoNigXmq2JAlw9DrD0P5Og5c5xsEnt9bPjfuE7MGkDEGN09sC...

Page 218: ...SL Certificate must be pur chased from a trusted authority If you do not require this level of protection you may go to Step 3B Generate a Self Signed Certificate Most certificate vendors will ask for the generated CSR file from Step 2 to be pasted into a field in a web page during the purchase procedure Be sure to copy the entire contents of the file including the BEGIN and END tags with the dash...

Page 219: ... 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 Bcat private key my crt mycert pem Please note the greater than symbol between my crt and mycert pem The file mycert pem can now be uploaded to the NTP PTP option in order to enable HTTPS ...

Page 220: ...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: ... Harmonized EN55011 Class A Radiated and Conducted Emissions Standard EN50082 1 Generic Immunity Part 1 Referenced Residential Commercial and Light Industrial Environments EN61010 1 Safety requirements of Electrical Equipment for Measurement Control and Laboratory Use Signed Signatory Bruce H Roeder This certificate declares that the described equipment conforms to the applicable requirements of t...

Page 222: ...Appendix E Statement of Compliance The following page is a statement of compliance that includes Model 1201B and 1201C ...

Page 223: ... in use world wide by the electric power industry 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 All Arbiter Systems calibration products are supplie...

Page 224: ... cables 21 voltage 17 antenna cable testing 17 antenna cable attenuation 19 DC resistance 20 delay 18 effects of cable parameters 18 Appendix A 123 B 126 C 202 D 204 cable accessory 20 adjacent signal interference 20 delays 88 distance 86 physical protection 20 timing output 85 user supplied 21 wire losses 87 CE mark certifications 202 chapter list v command key definitions 6 communication ports 9...

Page 225: ... 58 factory defaults resetting to 60 failsafe indication 116 fault indications 35 faults 29 firmware flash updates ii firmware updates ii fuses replacing 12 types and location 12 GNSS 1 surge arrester 18 123 handling precautions 2 holdover 6 33 fault indication 35 indications 96 oscillator 23 oscillators 1 out of lock 68 HTTPS using 161 initial LED indication 28 initial startup sequence 28 inlet p...

Page 226: ...ounting instructions 4 relay 28 29 63 69 71 81 107 118 119 configure front panel 68 description 9 front panel setup 68 jumper selection table 24 mainboard jumper location 23 operation 26 89 rear panel 8 solid state 149 specifications 89 warning for prog pulse usage 69 RG 11 cable 20 crimp tool 20 RS 232C command set 93 security introduction 1 setup 39 self signed certificate 199 serial command bac...

Page 227: ...time 144 system time deviation 144 serial port COM1 pin definitions 118 COM2 pin definitions 118 output symbols 94 pin definitions 109 Set Back Light 70 Set Event Deviation 78 Set IRIG Time Data 78 Set Local Time 66 Set Main RS 232 65 Set Option Control 79 Set Out of Lock 68 Set Prog Pulse 71 Set System Delays 70 setup menus see configure settings signal output description 82 SNMP 185 configuratio...

Page 228: ...ue Time broadcast mode 146 unpacking the clock 2 version firmware 34 107 manual v warranty iii web interface 158 configure network settings 164 configure ntp 171 configure password 162 configure ptp 168 configure snmp 166 configure vlan 164 GNSS status time quality 165 IP address 158 logging in 158 network settings 163 ntp authentication 172 ntp status 170 ntp terminology 170 ntp ptp server suppor...

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