Page 1 DOC06501_Revision F ATS-6501 Users Guide ATS-6501 Tflex GPS Time & Frequency Standard Users Guide Revision F For Software Version 3.6.X MAR 2010...
Page 2 DOC06501_Revision F ATS-6501 Users Guide DOC06501Rev F Revision History Revision Description Date Approved Initial release 02/10/09 Command updates 05/23/09 Add 4395A-5, NASA 36 10/02/09 Added support contact 11/10/09 information Add 4372A, DC power 2/24/10 correction Add C of C 3/29/10...
Page 3: Table Of Contents
DOC06501_Revision F ATS-6501 Users Guide Table of Contents General Information ..................... 1 Introduction ......................1 Ordering Information ................... 1 Installation ......................3 Powering on the ATS-6501 .................. 3 Communicating with the ATS-6501 ..............4 ...
Page 4 DOC06501_Revision F ATS-6501 Users Guide 3.1.6. Fans ......................27 3.1.7. Flash Card ....................28 3.1.8. Display Button .................... 28 Rear Panel ......................28 Software ......................29 3.3.1 Current Version ................... 29 ...
Page 5 DOC06501_Revision F ATS-6501 Users Guide 6.2.6 NTP Server ....................61 6.2.7. PTD Value is Noisy ..................61 6.2.8 Over Temperature and Fans ................ 62 6.2.9 PPS Outputs ....................62 6.2.10 IRIG Outputs ....................63 ...
Page 7: General Information
1 General Information Introduction The ATS-6501 Tflex is a state-of-the-art GPS Disciplined time and frequency reference. It utilizes an internal rubidium (Rb) atomic clock and low noise synthesizer (LNS) in conjunction with GPS measurements to provide outputs that are characterized by the short-term stability of the atomic clock and the long-term stability of the GPS constellation.
Page 8 TSC-4340AS-8S: 1 U fiber expansion chassis with single mode input and 8 single mode outputs Notes: The correct Symmetricom part number is constructed by appending the desired options to the base model in alphabetical order. None of the options are mutually exclusive so users can select as many options as desired.
Page 9: Installation
DOC06501_Revision F ATS-6501 Users Guide 2 Installation The ATS-6501 provides a number of features which may require additional setup and this section provides a guideline for the basic setup. After completing this section, the ATS-6501 will produce timing outputs to the coarse calibration accuracies specified in Appendix A. The ATS- 6501 is designed to be quickly and easily integrated with other system components.
Page 10: Communicating With The Ats-6501
DOC06501_Revision F ATS-6501 Users Guide Oscillator Lock light comes on. This is normal and does not indicate there is a problem with the unit. Communicating with the ATS-6501 Operators are capable of communicating with the system through a LAN connection or via one of the USB Ports when using OP001 USB to Serial cable to access the command port.
Page 11: Setting A Static Ip Address
DOC06501_Revision F ATS-6501 Users Guide power. The USB/Serial Cables are programmed to provide users access to the command port (OP001) or to communicate with a 5071A Cesium Clock(OP002). These cables are NOT interchangeable. Caution: By default pressing and holding the Display pushbutton on the front panel for ~10 seconds will reset the IP address to the default of 192.168.0.1.
Page 12: Antenna Installation
DOC06501_Revision F ATS-6501 Users Guide automatically connect to the command port and provide the ATS-6501> command prompt.  The ATS-6501 to communicate with a 5071A Cesium Clock (OP002). See section 2.7. Antenna Installation Installing the antenna properly requires careful planning. The antenna location itself must be selected based solely on the ability to reliably receive the GPS Signal.
Page 13 DOC06501_Revision F ATS-6501 Users Guide An outside antenna system should not be located in the vicinity of WARNING: overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal.
Page 14: Setting The Antenna Voltage
DOC06501_Revision F ATS-6501 Users Guide AC adapters directly. Please contact Symmetricom if you require assistance in selecting the right amplifier for your application. H. The antenna mount should be secured to a stable structure such as a building, antenna mast, or other suitable mounting platform.
Page 15: Outdoor Antenna Grounding
DOC06501_Revision F ATS-6501 Users Guide C. To change the value, type antenna_voltage and the desired value (0, 5, or 12) and press enter. The system should respond with “OK”. ATS-6501>antenna_voltage 12 Note: If you enter an incorrect value you will get the following message: ATS-6501>antenna_voltage 3 Usage: 0, 5, or 12 D.
Page 16: Positioning Modes
DOC06501_Revision F ATS-6501 Users Guide You can verify the current value of the mask angle by sending the settings gps:mask_angle command. ATS-6501>settings gps:mask_angle 1.0000000000000000e+01 If this setting is correct type save to save the current user default configuration on the system to ensure the system uses the proper mask angle after a reboot or power cycle.
Page 17 DOC06501_Revision F ATS-6501 Users Guide [antenna_delay] 0.000000000000000e+00 [antenna_voltage] 0.000000000000000e+00 [datum] wgs84 [mask_angle] 1.000000000000000e+01 [positioning] [auto_hours] 1.200000000000000e+01 [manual_position] [altitude] 1.592729000000000e+03 [latitude] 4.001941422777778e+01 [longitude] -1.052390962444445e+02 [mode] auto If these settings are correct type save to save the current user default configuration on the system to ensure the system uses the positioning mode and period after a reboot or power cycle.
Page 18: Manual Position Mode
DOC06501_Revision F ATS-6501 Users Guide 2.3.5.3 Manual Position Mode If the location of the antenna is known then the Manual mode should be used. This mode uses the information provided by the datum, latitude, longitude, and altitude parameters to fix the antenna position at startup.
Page 19: Ats-6501 Installation
DOC06501_Revision F ATS-6501 Users Guide [altitude] 5.1573999999999998e+01 [latitude] 3.8466278930940000e+01 [longitude] -7.7440865422740004e+01 ATS-6501>settings gps:datum wgs84 If these settings are correct type save to save the current position on the system to ensure the system uses the manual positioning mode after a reboot or power cycle. ATS-6501 Installation The ATS-6501 is ready for installation into a standard 19"...
Page 20: 4394A (Pps/Dc Irig)
DOC06501_Revision F ATS-6501 Users Guide Figure 4 Output Modules 2.4.2.1 4394A (PPS/DC IRIG) The factory default for this module provides two 1PPS outputs and two DC IRIG (B000) Outputs. Outputs 1 and 2 are 1PPS and Outputs 3 and 4 are DC IRIG. The output types are user selectable/programmable.
Page 21 DOC06501_Revision F ATS-6501 Users Guide [pps_period] 1.000000000000000e-06 [pps_width] 5.000000000000000e-07 [type] pps [format] B [signal_word] 0 [type] irig [format] B [signal_word] 0 [type] irig  IRIG: Valid DC IRIG Codes are A(000,003,007), B(000,003,007), D002, E002, G002, and H002. Default is B000. To set the IRIG Code for the individual ports use the irig command: ATS-6501>...
Page 22: 4395A-10 (10Mhz) / 4395A-5 (5Mhz)
DOC06501_Revision F ATS-6501 Users Guide [status] good [status] good [status] good [status] good [power] enabled [type] 4394A 2.4.2.2 4395A-10 (10MHz) / 4395A-5 (5MHz) No programming is required for these modules. These modules will also work in any of the 6 output card slots. 2.4.2.3 4387A (Modulated IRIG/NASA36) This module provides four Amplitude Modulated (AM) IRIG Outputs or the NASA36 Serial Time Code.
Page 23: 4372A Fiber Output Module
DOC06501_Revision F ATS-6501 Users Guide  NASA36: To set the NASA 36 Code for the individual ports use the nasa36 command: ATS-6501> nasa36 [slot#] [port#] The following example sets the Time Code for Slot 5, Port 3 to NASA 36. ATS-6501>nasa36 5 3 The system will generate an error message if the operator attempts to enter an unsupported or invalid code.
Page 24: Antenna Delay Calibration
For applications requiring the highest level of accuracy, the ATS-6501 should be calibrated at Symmetricom. This process involves installing the user’s antenna and antenna cable at the factory and comparing the PPS outputs to a system which has a known offset to UTC(USNO).
Page 25: On Time Point (Otp)
Users may decide to provide an EXTERNAL frequency reference to the ATS-6501. The external frequency reference may be monitored by the ATS-6501 via RS232 through either of the USB Connectors on the rear of the unit (OP001). The Symmetricom 5071A is the only model...
Page 26: Figure 6 External Frequency Reference
To set the type of reference use the reference_type command. If users are operating with a Symmetricom 5071A and they will set the system up so the ATS-6501 is communicating with the 5071A select hp5071A, if not select cesium.
Page 27: Saving User Configuration Files
DOC06501_Revision F ATS-6501 Users Guide Note: The Alarm light will come on and the Osc Lock light will go out for a few seconds when you switch references. The system should clear all alarm indications within a few seconds. To verify the settings use the settings reference command to check the current settings. ATS-6501>settings reference [external] [type] hp5071a...
Page 28: Ftp And Real-Time (Rt) Configuration Files
DOC06501_Revision F ATS-6501 Users Guide ATS-6501>load example Note: The system will recognize case sensitive alphanumeric characters, -, ‘ ‘, and _. If any other characters are used the system will inform the user that the filename is not valid and will not save the settings.
Page 29 DOC06501_Revision F ATS-6501 Users Guide configuration and press enter. The system will save this configuration containing the new settings. To use this configuration after the system has been rebooted use the list_logs ftp or list_logs rt command to bring up a list of the possible configuration files and use the load_logs ftp or load_logs rt command to have the system load and start running with the desired configuration settings.
Page 30 DOC06501_Revision F ATS-6501 Users Guide Caution: Users can delete the default file(s). If this is done and a new user default logging configuration is not saved, the system will use the factory defaults when rebooted or power cycled. Use the settings gps_logging:ftp or gps_logging:rt command to ensure the system is using the desired settings based on the newly loaded configuration file.
Page 31: Operations
DOC06501_Revision F ATS-6501 Users Guide Operations Two distinct tasks are performed by the ATS-6501 1) collection of GPS measurement data 2) the generation of timing signals. These two tasks are entirely separate except for the fact that they must share CPU time and data from the GPS receiver. Because the generation of timing signals requires that events (e.g., clock steering) occur at very specific times, operational precedence is always given to timing tasks.
Page 32: Oscillator Locked (Osc Lock) Indicator
DOC06501_Revision F ATS-6501 Users Guide The outputs are not locked to the reference Over temperature (internal temperature is greater than 65 C) The internal rubidium clock is unlocked. If set up for an External Reference:  System is unable to communicate with the 5071A if set up to operate with the reference_type=hp5071a ...
Page 33: Ntp Locked Indicator
DOC06501_Revision F ATS-6501 Users Guide Green The GPS receiver is in fine time mode (< 50 ns) POST Only. Table 3-4 GPS Tracking Indicator 3.1.4 NTP Locked Indicator A Network Time Protocol (NTP) server is provided for the dissemination of time to other devices on the network.
Page 34: Flash Card
DOC06501_Revision F ATS-6501 Users Guide The active line will display false when the fans are functioning normally and true for one or both fans if they are not. If a fan is having issues you will see the number of occurrences increment up from 0 as each event occurs.
Page 35: Software
DOC06501_Revision F ATS-6501 Users Guide Connection to a local area network (LAN) is supported by the ATS-6501. This allows users to access the unit remotely and also provides error monitoring capabilities. In addition, the ATS-6501 can serve as the source of network time for other systems on the network if using network time protocol (NTP).
Page 36: Software Updates
DOC06501_Revision F ATS-6501 Users Guide [sw_version] 3.400 3.3.2 Software Updates Upgrading the software can be accomplished via two methods. 3.3.2.1 Flash Card Replacement This requires removing the currently installed flash disk and installing a new one which has the updated software. Power the system down, press and release the SD card located in the SD Card slot on the front panel.
Page 37: Gps Firmware Updates
Users obtain software image from Symmetricom Note: ftp://ftp.timing.com/pub/ATS-6501. If the software update is not applied and the unit is rebooted or power cycled users will need to upload the .iso file again in order to update the system software. 3.3.3 GPS Firmware Updates Updating the firmware on the GPS receiver requires that the GPS receiver be removed from the system, updated, and reinstalled.
Page 38: User Interfaces
DOC06501_Revision F ATS-6501 Users Guide User Interfaces Software interfaces on the ATS-6501 are limited in their ability to provide users with real-time control. Adjusting some system parameters during operation of the ATS-6501 can seriously impact the timing performance of the unit and therefore the ability to adjust these parameters is limited by the software.
Page 39 DOC06501_Revision F ATS-6501 Users Guide Command Description delete_logs (ftp|rt) Deletes specified user ftp|rt logging configuration files. diag Adjust diagnostic logging levels. diag_port Switch to the diagnostic port (1800). fix_position Sets a static location based on current GPS determined position location or it allows the operator to enter the latitude, longitude, and altitude.
Page 40: Diagnostic Port (1800)
DOC06501_Revision F ATS-6501 Users Guide Command Description quit Closes the command connection and terminates the telnet connection. reboot Reboots the ATS 6501. reference Indicates which frequency reference to use (internal | external) reference_type Indicates which frequency reference is providing the external reference input (cesium|hp5071a) restart Restarts the application without rebooting the system...
Page 41: Status Port (1900)
DOC06501_Revision F ATS-6501 Users Guide [kas2] info To change the settings use the diag command then specify which subsystem you would like to change (gps, kas2, clock), then specify which message types (error, info, or debug) you would like to see for that subsystem. Example – if you want to look at the debug messages for the GPS use the diag gps debug command.
Page 42: Status Command
DOC06501_Revision F ATS-6501 Users Guide ATS-6501>status ntp [locked] true [source] REFCLK(25,0) Note: The ATS-6501 is capable of supporting ~100 NTP Clients. Status Command The ATS-6501 provides overall system status, health, and measurement results via the status command available on the command port (1700). For more detailed information and a description of the fields refer to Appendix B.
Page 43: Ftp Data Logging
DOC06501_Revision F ATS-6501 Users Guide 3.6.1 FTP Data Logging Data can be recorded and stored on the ATS-6501 and can be retrieved via a FTP client (username: ftp, password: ftp). The logs that are stored are determined by the user and can be one of any of the ASCII logs specified in the Novatel OEMV user manual.
Page 44 DOC06501_Revision F ATS-6501 Users Guide File will be stored as: Test####dat, where the # is a sequence of 4 numbers and characters to uniquely identify the file name. Note: When the file are stored using the “user” option, the filename will not end with a .gz extension even if the compression is turned on.
Page 45: Real Time Data Logging
DOC06501_Revision F ATS-6501 Users Guide [waas9a] onchanged H. If needed, turn the ftp logging on using the log_enable command. ATS-6501>log_enable ftp 1 Once the data logging is enabled the settings gps_logging:ftp:enable value will = true. Users can make changes to the desired information that is being logged by using the log command to add logs as described above or delete a desired log using the unlog command.
Page 46 DOC06501_Revision F ATS-6501 Users Guide To set up the real time data logging users will need to follow the steps outlined below to set up the type of data to be logged and then turn the logging on. Users can also verify the data logging configuration settings.
Page 47: Waas Satellites
DOC06501_Revision F ATS-6501 Users Guide Note: If you do not save the setup the system will come back up with the factory defaults when the system is rebooted and any changes that were made will not be retained. Users can also save these settings to a different configuration file if desired by adding the filename to the save_logs rt command.
Page 48 DOC06501_Revision F ATS-6501 Users Guide [time_remaining] 8 hours, 26 seconds [mode] [desc] tracking [value] 4 [model] [hw_version] OEMV3G-4.00-X2T [name] L12LV [serial_number] DAB08190172 [sw_version] 3.400 [position] [alt] 4.999890000000000e+01 Auto position mode - position_period has not expired [fixed] false [lat] 3.846628110427000e+01 [lon] -7.744086206042000e+01 [satellite] [number] 7 [signal]...
Page 49 DOC06501_Revision F ATS-6501 Users Guide operating normally. The slots fields should show which cards are installed in each slot (or empty if no card is present), the port status for all four outputs are good (=1) and power is enabled. [mainboard] [EUID] 00:30:96:02:00:00:00:f6 [serialnum] SP00253...
Page 50 DOC06501_Revision F ATS-6501 Users Guide [active] false [occurrences] 0 [active] false [occurrences] 0 [gps_error] [active] false [cleared] [what] [when] 1998-01-01-00:03:51.102 [occurrences] 1 [set] [what] Gps internal error [when] 1998-01-01-00:03:48.283 [gps_tracking] [active] false [occurrences] 0 [leapseconds] [internal_error] [active] false [occurrences] 0 [unknown] [active] false [occurrences] 0...
Page 51 DOC06501_Revision F ATS-6501 Users Guide [over_temperature] [active] false [occurrences] 0 [power_supply] [active] false [occurrences] 0 [active] false [occurrences] 0 The [ref_unlocked] fields are reporting the clock status and system performance information. The reference should be locked ([ref_unlocked] [active] = false). [ref_unlocked] [active] false [occurrences] 0...
Page 52 DOC06501_Revision F ATS-6501 Users Guide [default_gateway] 192.168.1.1 [ip] 192.168.1.253 [netmask] 255.255.255.0 [serial_number] SP00235 [start] 2009-06-04-22:46 [uptime] 15 hours, 29 minutes, 44 seconds [ver] tflex-3-6-2 N. Send the settings command and verify the user defined set up parameters are correct. ATS-6501>settings [command_port] [prompt] [enable] true...
Page 53 DOC06501_Revision F ATS-6501 Users Guide [slots] [tsc4373] [ports] [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [format] B [signal_word] 0 [type] irig [format] B [signal_word] 0 [type] irig [tsc4373] [ports] [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps...
Page 54 DOC06501_Revision F ATS-6501 Users Guide [signal_word] 120 [type] irig [format] B [signal_word] 120 [type] irig [format] B [signal_word] 120 [type] irig [reference] [external] [type] hp5071a [source] internal O. At this point if there are no alarms the ATS-6501 is functioning properly. Network connectivity should be checked to ensure that data is being transmitted properly.
Page 55: Theory Of Operations
DOC06501_Revision F ATS-6501 Users Guide 4 Theory of Operations Two distinct tasks are performed by the ATS-6501: collection of GPS measurement data and the generation of timing signals. The two tasks are entirely separate except for the fact that they must share CPU time and data from the GPS receiver.
Page 56: Log Collection
DOC06501_Revision F ATS-6501 Users Guide The fiber optic outputs from the 4372A module, when plugged into an ATS 6501, contain a proprietary bit stream with 1 PPS marker and time code information. The ATS 6511A (Dual Fiber Input Timing Distribution) decodes this bit stream, extracts the time code, and steers its internal OCXO to the frequency and phase of the fiber signal.
Page 57 DOC06501_Revision F ATS-6501 Users Guide track the signal received from GPS satellites. This process usually takes 5 to 10 minutes but may take as long as 30 minutes depending upon how long the ATS-6501 has been powered off. After four satellites are being tracked by the GPS receiver, the PPS output is adjusted so that it is aligned with UTC(USNO).
Page 58: Maintenance
Although this schedule is sufficient for most applications, it may be necessary to increase the number of scheduled maintenance events for extremely dusty or dirty environments. Contact Symmetricom if there are questions about the scheduled maintenance cycle. A minimal amount of maintenance is required for the ATS-6501. It is designed to operate continuously over long periods of time with little to no interaction.
Page 59: Fan Filter
DOC06501_Revision F ATS-6501 Users Guide 4. Inspect the antenna. Clean any buildup of dirt or other contaminants from the surface of the antenna. These contaminants may degrade the strength of the GPS signal. If the antenna has been damaged by the weather, replace it. 5.
Page 60: Troubleshooting
DOC06501_Revision F ATS-6501 Users Guide Troubleshooting The following section provides some basic troubleshooting information to assist users in case they suspect there is an issue with the system. Front Panel Indications You can use the front panel indicators to assess the status and operation of the unit. Under normal operating conditions the user should see: ...
Page 61: Outputs Enabled
DOC06501_Revision F ATS-6501 Users Guide  Power Source has failed, check to ensure the power source is available and connected to the rear panel of the unit. Users can also check the current system using the status alarm and the status health:power_supply commands to check the system status.
Page 62: Gps Performance
DOC06501_Revision F ATS-6501 Users Guide Users can determine which output module(s) has failed:  Based on which systems the ATS-6501 is driving are no longer operating properly  By unplugging the output modules, one at a time, to see which output module was at fault.
Page 63: Gps Not Tracking
DOC06501_Revision F ATS-6501 Users Guide [number] 8 [signal] [avg] 4.723037719726562e+01 [desc] Good [enum] 2 [freq] dual [max] 4.942499923706055e+01 [min] 4.031800079345703e+01  Poor antenna location. o Make sure that there are no obstructions between the GPS antenna and the sky. If you are inside a building, surrounded by tall buildings, or in a tunnel the GPS antenna will not have a clear view of the sky.
Page 64 Improper Antenna Cable. The cable may be either too long or the improper type. Symmetricom recommends using low loss coaxial cables for the GPS antenna cable. Cable losses cannot exceed 10dB when using the antenna supplied with the ATS-6501.
Page 65: Internal Clocks
DOC06501_Revision F ATS-6501 Users Guide o GPS Tracking indicator is RED or OFF. Enter the correct position for the antenna. Use the status health:gps_error command to look at the status of the GPS hardware. 6.2.4 Internal Clocks If you suspect there may be an issue with the internal clocks use the status health and status oscillator commands to look at the status of the internal clocks.
Page 66 DOC06501_Revision F ATS-6501 Users Guide [clock_freq_step] [active] false [occurrences] 0 [clock_phase_step] [active] false [occurrences] 0 [clock_steer] [active] false [occurrences] 0 [clock_wander] [active] false [occurrences] 0 ATS-6501>status oscillator [external] locked [internal] locked [lns] locked [locked] true Users can also check the status of the time scale to ensure the UTC offset value [ptd] is under +/- 100nSec from UTC and the clock is being steered ATS-6501>status kas2 [antenna_delay] -1.878000000000000e-08...
Page 67: Ntp Server
DOC06501_Revision F ATS-6501 Users Guide [external] ref_unlocked – cannot communicate with device ATS-6501>status oscillator [external] cannot communicate [internal] locked [lns] locked [locked] false ATS-6501>status health:ref_unlocked [ref_unlocked] [active] true [cleared] [what] reference is locked [when] 1998-01-01-00:02:32.634 [occurrences] 2 [set] [what] cannot communicate with device [when] 2009-01-27-16:22:02.591 Once communications are restored the system will clear the alarm indications and resume normal operations.
Page 68: Over Temperature And Fans
DOC06501_Revision F ATS-6501 Users Guide [mask_angle] 1.000000000000000e+01 [positioning] [auto_hours] 1.200000000000000e+01 [manual_position] [altitude] 1.592729000000000e+03 [latitude] 4.001941422777778e+01 [longitude] -1.052390962444445e+02 [mode] auto 6.2.8 Over Temperature and Fans The ATS 6501 monitors the internal temperature will trigger an alarm to be displayed on the front panel and the status alarm list when the internal temperature reaches or exceeds 65ºC. To check the current temperature on the system use the status temperature command.
Page 69: Irig Outputs
DOC06501_Revision F ATS-6501 Users Guide To verify the settings use the settings hardware:outputs:slots:N command (where N=Card Slot #) to verify the system settings. ATS-6501> settings hardware:outputs:slots:1 [tsc4373] [ports] [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [format] B [signal_word] 0 [type] irig...
Page 70: Nasa36 Outputs
DOC06501_Revision F ATS-6501 Users Guide [pps_width] 1.000000000000000e-04 [type] pps [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [format] B [signal_word] 0 [type] irig [format] B [signal_word] 0 [type] irig To check the status of the output card use the status hardware:outputs:slots:N command (where N=Card Slot #) to verify the card status.
Page 71: Communication Problems
DOC06501_Revision F ATS-6501 Users Guide [format] B [signal_word] 120 [type] irig To check the status of the output card use the status hardware:outputs:slots:N command (where N=Card Slot # of the 4387A) to verify the card status. ATS-6501> settings hardware:outputs:slots:5 [ports] [status] good [status] good [status] good...
Page 72: Syslog Error Command
DOC06501_Revision F ATS-6501 Users Guide  Improper baud rate set on external reference serial port o 9600,N,8,1, no flow control.  Incorrect serial cable type (requires Null Modem cable.)  Communication settings on the reference device are incorrect. o Refer to the manual and set the system to 9600,N,8,1. Note: Communications are only used when the external frequency reference is a 5071A.
Page 73: Appendix A System Specifications
DOC06501_Revision F ATS-6501 Users Guide Appendix A System Specifications Environmental Operating Temperature 0° - 50° C, 95% Humidity, non-condensing Storage Temperature -20° - 70°, 95% Humidity, non-condensing Physical Size 17”W x 19”D x 1.75”H. Weight 20 Lbs (9.1kg) - two power supplies & 4 plug-in modules. 10 MHz Input Quantity Connector Type...
Page 74 DOC06501_Revision F ATS-6501 Users Guide Status Port 1900 Real-Time Data 1135 USB Command Port Cable (OP001) Connector DB9 (M) Communications Parameters 115200,N,8,1 Type USB External Reference Port Cable (OP002) Connector DB9 (M) Communications Parameters 9600,N,8,1 Type GPS Receiver Antenna Connector TNC(F) Output Voltage 0, 5, or 12VDC - (User Selectable), Default = 0...
Page 75 DOC06501_Revision F ATS-6501 Users Guide Characteristic Description Number of outputs Four Output connectors BNC(F) Impedance 50 Ω Amplitude +13dbm +/- 2dBm Signal Sine Wave Harmonic < -40dbc Phase Noise 1 Hz -100dbc/Hz 10 Hz -125dbc/Hz 100Hz -132dbc/Hz 1KHz -138dbc/Hz 10KHz -141dbc/Hz 100Khz -141dbc/Hz...
Page 76 DOC06501_Revision F ATS-6501 Users Guide Fiber Optic Output Module (4372A) Characteristic Description Number of outputs Four Output connectors LC – Duplex in SFP pluggable modules. These modules can be individually changed to different mode transceivers. Outputs contain time code, 1 PPS and frequency for ATS 6511 Inputs are not required and contain status information from the ATS 6511 connected directly to the output, or from multiple ATS 6511s connected to a TSC-4340A connected to this output...
Page 77: Appendix B Status Command Fields
DOC06501_Revision F ATS-6501 Users Guide Appendix B Status Command Fields This section provides information on the results from the status command ATS-6501>status [alarm] no alarm Current alarm list [fan] Fan Status [1] true true = Running [2] true false = Off [gps] GPS Status [auto_positioning]...
Page 78 DOC06501_Revision F ATS-6501 Users Guide [status] good [power] enabled Enabled or disabled. [type] 4394A Model # or empty if not installed [2-5] Same for slots 2-5 Example if any slot is empty. [type] empty [power] Power Supply Info [numsupplies] 2 Number of supplies (2) [supplies] Supply Info...
Page 79 DOC06501_Revision F ATS-6501 Users Guide [active] false true = Active alarm [occurrences] 0 Number of events Slot #2 [active] false The remaining slots are the [occurrences] 0 same as slot #1. Slot #3 [active] false [occurrences] 0 Slot #4 [active] false [occurrences] 0 Slot #5 [active] false...
Page 80 DOC06501_Revision F ATS-6501 Users Guide [external] locked 10Mhz Ref Status [internal] locked Internal RB Locked to reference. [lns] locked Low Noise Synth(Unlocked/Locked) [locked] true System Locked (true/false) [outputs] enabled Outputs (Enabled/Disabled) [temperature] 31 System Temperature (C) [tflex] Unit Information [network] Current Network Settings [MAC] 00:30:96:00:00:98 Unit MAC Address...
Page 81: Appendix C Status Port (1900) Example
DOC06501_Revision F ATS-6501 Users Guide Appendix C Status Port (1900) Example The data in this first section (boot+) is provided each time the user connects to the status port. It allows users to obtain all of the system settings/config/status/network parameters each time they connect to the status port.
Page 82 DOC06501_Revision F ATS-6501 Users Guide 2009-12-27-23:06:58.708 settings:hardware:outputs:slots:1:tsc4373:ports:3:format=B 2009-12-27-23:06:58.715 settings:hardware:outputs:slots:1:tsc4373:ports:3:signal_word=0 2009-12-27-23:06:58.724 settings:hardware:outputs:slots:1:tsc4373:ports:3:type=irig 2009-12-27-23:06:58.731 settings:hardware:outputs:slots:1:tsc4373:ports:4:format=B 2009-12-27-23:06:58.739 settings:hardware:outputs:slots:1:tsc4373:ports:4:signal_word=0 2009-12-27-23:06:58.747 settings:hardware:outputs:slots:1:tsc4373:ports:4:type=irig 2009-12-27-23:06:58.755 settings:hardware:outputs:slots:2:tsc4373:ports:1:pps_period=1 2009-12-27-23:06:58.762 settings:hardware:outputs:slots:2:tsc4373:ports:1:pps_width=1.00000000000e-04 2009-12-27-23:06:58.770 settings:hardware:outputs:slots:2:tsc4373:ports:1:type=pps 2009-12-27-23:06:58.777 settings:hardware:outputs:slots:2:tsc4373:ports:2:pps_period=1 2009-12-27-23:06:58.784 settings:hardware:outputs:slots:2:tsc4373:ports:2:pps_width=1.00000000000e-04 2009-12-27-23:06:58.791 settings:hardware:outputs:slots:2:tsc4373:ports:2:type=pps 2009-12-27-23:06:58.799 settings:hardware:outputs:slots:2:tsc4373:ports:3:format=B 2009-12-27-23:06:58.807 settings:hardware:outputs:slots:2:tsc4373:ports:3:signal_word=0 2009-12-27-23:06:58.814 settings:hardware:outputs:slots:2:tsc4373:ports:3:type=irig 2009-12-27-23:06:58.821 settings:hardware:outputs:slots:2:tsc4373:ports:4:format=B 2009-12-27-23:06:58.828 settings:hardware:outputs:slots:2:tsc4373:ports:4:signal_word=0 2009-12-27-23:06:58.836 settings:hardware:outputs:slots:2:tsc4373:ports:4:type=irig 2009-12-27-23:06:58.847 settings:hardware:outputs:slots:3:tsc4395:ports:1:enabled=1 2009-12-27-23:06:58.859 settings:hardware:outputs:slots:3:tsc4395:ports:2:enabled=1 2009-12-27-23:06:58.868 settings:hardware:outputs:slots:3:tsc4395:ports:3:enabled=1...
Page 83 DOC06501_Revision F ATS-6501 Users Guide 2009-12-27-23:06:18.289 status:hardware:outputs:enabled=1 2009-12-27-23:08:49.675 status:hardware:outputs:slots:1:ports:1:status=good 2009-12-27-23:08:49.686 status:hardware:outputs:slots:1:ports:2:status=good 2009-12-27-23:08:49.695 status:hardware:outputs:slots:1:ports:3:status=good 2009-12-27-23:08:49.704 status:hardware:outputs:slots:1:ports:4:status=good 2009-12-27-23:06:23.496 status:hardware:outputs:slots:1:power=enabled 2009-12-27-23:06:23.622 status:hardware:outputs:slots:1:type=4394A 2009-12-27-23:08:49.773 status:hardware:outputs:slots:2:ports:1:status=good 2009-12-27-23:08:49.786 status:hardware:outputs:slots:2:ports:2:status=good 2009-12-27-23:08:49.794 status:hardware:outputs:slots:2:ports:3:status=good 2009-12-27-23:08:49.816 status:hardware:outputs:slots:2:ports:4:status=good 2009-12-27-23:06:28.280 status:hardware:outputs:slots:2:power=enabled 2009-12-27-23:06:28.403 status:hardware:outputs:slots:2:type=4394A 2009-12-27-23:08:59.414 status:hardware:outputs:slots:3:ports:1:status=good 2009-12-27-23:08:59.424 status:hardware:outputs:slots:3:ports:2:status=good 2009-12-27-23:08:59.434 status:hardware:outputs:slots:3:ports:3:status=good 2009-12-27-23:08:59.443 status:hardware:outputs:slots:3:ports:4:status=good 2009-12-27-23:08:58.333 status:hardware:outputs:slots:3:power=enabled 2009-12-27-23:06:28.725 status:hardware:outputs:slots:3:type=4395A-10 2009-12-27-23:06:28.733 status:hardware:outputs:slots:4:type=empty 2009-12-27-23:08:51.140 status:hardware:outputs:slots:5:ports:1:status=good...
Page 84 DOC06501_Revision F ATS-6501 Users Guide 2009-12-27-23:06:59.664 status:health:output_modules:3:active=0 2009-12-27-23:06:59.657 status:health:output_modules:3:occurrences=0 2009-12-27-23:06:59.681 status:health:output_modules:4:active=0 2009-12-27-23:06:59.672 status:health:output_modules:4:occurrences=0 2009-12-27-23:06:59.697 status:health:output_modules:5:active=0 2009-12-27-23:06:59.689 status:health:output_modules:5:occurrences=0 2009-12-27-23:06:59.714 status:health:output_modules:6:active=0 2009-12-27-23:06:59.707 status:health:output_modules:6:occurrences=0 2009-12-27-23:06:59.727 status:health:outputs_disabled:active=0 2009-12-27-23:06:59.721 status:health:outputs_disabled:occurrences=0 2009-12-27-23:06:59.742 status:health:outputs_unlocked:active=0 2009-12-27-23:06:59.735 status:health:outputs_unlocked:occurrences=0 2009-12-27-23:06:59.755 status:health:over_temperature:active=0 2009-12-27-23:06:59.750 status:health:over_temperature:occurrences=0 2009-12-27-23:06:59.770 status:health:power_supply:1:active=0 2009-12-27-23:06:59.763 status:health:power_supply:1:occurrences=0 2009-12-27-23:06:59.785 status:health:power_supply:2:active=0 2009-12-27-23:06:59.778 status:health:power_supply:2:occurrences=0 2009-12-27-23:06:59.797 status:health:ref_unlocked:active=0 2009-12-27-23:06:59.791 status:health:ref_unlocked:occurrences=0 2009-12-27-23:06:54.911 status:kas2:antenna_delay=2.077000000000000e-07...
Page 85 DOC06501_Revision F ATS-6501 Users Guide 2009-02-10-20:45:35.746 status:gps:satellite:number=0 2009-02-10-20:45:35.750 status:gps:satellite:signal:min=0.000000000000000e+00 2009-02-10-20:45:35.753 status:gps:satellite:signal:max=0.000000000000000e+00 2009-02-10-20:45:35.760 status:gps:satellite:signal:avg=0.000000000000000e+00 2009-02-10-20:45:35.766 status:gps:satellite:signal:freq=single 2009-02-10-20:45:35.768 status:gps:satellite:signal:desc=Poor 2009-02-10-20:45:35.770 status:gps:satellite:signal:enum=0 If GPS is not tracking the ATS-6501 will not report the kas2[ptd] value. 2009-02-10-20:45:55.952 status:gps:satellite:number=5 2009-02-10-20:45:55.958 status:gps:satellite:signal:min=4.702999877929688e+01 2009-02-10-20:45:55.963 status:gps:satellite:signal:max=4.985499954223633e+01 2009-02-10-20:45:55.975 status:gps:satellite:signal:avg=4.883119964599609e+01 2009-02-10-20:45:55.984 status:gps:satellite:signal:desc=Good 2009-02-10-20:45:55.988 status:gps:satellite:signal:enum=2 2009-02-10-20:45:58.007 status:gps:mode:value=4...
Page 86: Appendix D Detailed Command Information
DOC06501_Revision F ATS-6501 Users Guide Appendix D Detailed Command Information The commands are listed alphabetically. Each command is listed with an explanation of what it does along with examples. All of the commands are case sensitive. The system will inform the operator that the commands were executed by returning an “OK”...
Page 87 DOC06501_Revision F ATS-6501 Users Guide Description: Sets the antenna delay value for calibration and system on-time-point. The system will accept scientific notation values as shown below. The example below has a delay of 96.3nsec Syntax: antenna_delay [nt] Command Example: ATS-6501>antenna_delay 9.63E-8 Query: ATS-6501>settings gps:antenna_delay 9.630000000000000e-08...
Page 88 DOC06501_Revision F ATS-6501 Users Guide Syntax: config Command Example: ATS-6501>config Datum: Description: Sets the current datum to be used by the system. Syntax: datum (wgs84 / nad83), default is wgs84. Command Example: ATS-6501>datum wgs84 Query: settings gps:datum ATS-6501> wgs84 Delete Description: Deletes the user specified system configuration file.
Page 89 DOC06501_Revision F ATS-6501 Users Guide Query: list_logs (ftp / rt) ATS-6501> This command lists all of the current gps logging configuration files saved by the user. The user must specify ftp or rt for the log type. Diag: Description: Sets the current diagnostic message type (error/info/debug) for the three internal (clock/gps/kas2/timecode/tsc4370) systems monitored by the ATS-6501.
Page 90 DOC06501_Revision F ATS-6501 Users Guide Command Example: ATS-6501>fix_position 38.466279772 -77.440869253 51.5161 Query: ATS-6501>settings gps [antenna_delay] 0.000000000000000e+00 [antenna_voltage] 0.000000000000000e+00 [datum] wgs84 [mask_angle] 1.000000000000000e+01 [positioning] [auto_hours] 1.200000000000000e+01 [manual_position] [altitude] 5.151610000000000e+01 [latitude] 3.846627977200000e+01 [longitude] -7.744086925300000e+01 [mode] manual Front Panel Button Description: This command turns the IP Reset feature on the front panel display button on (1) or off (0).
Page 91 DOC06501_Revision F ATS-6501 Users Guide Command Examples: ATS-6501>irig 5 2 G 141 Query: ATS-6501> settings hardware:outputs:slots:5 [tsc4387] [ports] [format] B [signal_word] 120 [type] irig [format] B [signal_word] 120 [type] irig [format] G [signal_word] 141 [type] irig [format] B [signal_word] 120 [type] irig Latitude: Description: Sets the ATS-6501 latitude.
Page 92 DOC06501_Revision F ATS-6501 Users Guide Syntax: list Command Example: ATS-6501>list Query: ATS-6501>list default List_logs Description: Lists all of the saved user ftp or real-time (rt) gps logging configuration files. If there are no saved user configuration files the system will return with “no files”. Syntax: List_logs (ftp / rt) Command Example: ATS-6501>list_logs (ftp / rt)
Page 93 DOC06501_Revision F ATS-6501 Users Guide Syntax: load_logs (ftp / rt) [filename] Command Example: ATS-6501>load_logs ftp test Query: ATS-6501>list_logs (ftp / rt) default test Description: Determines which GPS logs are saved in the files (ftp) or available on the real-time (rt) port (1135). Users specify the log type (ftp/ rt) and the Novatel OEMV log command <novalog command>.
Page 94 DOC06501_Revision F ATS-6501 Users Guide ATS-6501> log_enable rt 1 Query: ATS-6501>settings gps_logging:rt:enable true Log Filename Description: User can set up the file naming scheme for the ftp gps log files. Syntax: log_filename (user / timestamp) <prefix> <id> <suffix> User: When using the user file naming scheme you will also need to provide the file prefix, the number of digits you would like to use as the unique file identifier, and the suffix for the file.
Page 95 DOC06501_Revision F ATS-6501 Users Guide Syntax: log_interval [n] Note: Changing the interval will not impact the log files already stored on the system. Command Example: ATS-6501> log_interval 5 Query: ATS-6501>settings gps_logging:ftp:interval Log Number Description: The maximum number of logs to save on the system. Once the number of logs has reached the maximum value the system will delete the oldest log and replace it with the newest log each time a new log file is generated.
Page 96 DOC06501_Revision F ATS-6501 Users Guide Query: ATS-6501>settings gps:positioning:manual_position [altitude] 5.151610000000000e+01 [latitude] 3.846627977200000e+01 [longitude] -77.44086542274004e+01 Mask Angle: Description: Sets the mask angle for the internal GPS receiver in degrees. System default is 10. Syntax: mask_angle [n] Command Example: ATS-6501>mask_angle 15 Query: ATS-6501>settings gps:mask_angle 1.000000000000000e+01 Nasa36:...
Page 97 DOC06501_Revision F ATS-6501 Users Guide Network Description: Displays the current system network settings as set by the user. Short-cut for show network. Syntax: network Note: These settings are not necessarily what the system is currently using unless the system has static IP Address assigned. If the system is using DHCP the current IP settings being used by the system will be displayed using the status tflex:network command.
Page 98 DOC06501_Revision F ATS-6501 Users Guide Position Mode: Description: Sets the ATS-6501 positioning mode to the desired value. Default setting is dynamic. Static users should use the auto mode if the antenna position is not known and manual if the position is known. Syntax: position_mode (dymanic / auto / manual) Command Example: ATS-6501>position_mode auto...
Page 99 DOC06501_Revision F ATS-6501 Users Guide [tsc4373] [ports] [pps_period] 1 [pps_width] 1.000000000000000e-04 [type] pps [pps_period] 1.000000000000000e-06 [pps_width] 5.000000000000000e-07 [type] pps [format] B [signal_word] 0 [type] irig [format] B [signal_word] 0 [type] irig Prompt: Description: Allows the user to change the command prompt text, turn the prompt on (1) or off (0) and can make that change for the current session or the system default.
Page 100 Description: Allows the user to set the type of external reference to be used. hp5071a is the default setting. The ATS-6501 is capable of communicating with the Symmetricom 5071A and will check the status of this clock during normal operations to ensure the reference is operating properly.
Page 101 DOC06501_Revision F ATS-6501 Users Guide Restart: Description: Restarts the ATS-6501 application without rebooting the system. Syntax: restart Command Example: ATS-6501>restart Save Description: Saves the user specified system configuration file. The user can save the default system settings by typing save and pressing enter. The users can save other system configurations as desired by adding a filename to the save command.
Page 102 DOC06501_Revision F ATS-6501 Users Guide Settings: Description: Displays the list of current user settings in effect. Short-cut for show settings. Syntax: settings Command Example: ATS-6501>settings Show: Description: This command displays all of the current system factory, user, and network settings as well as the current system status. It is the equivalent of sending the config, network, settings, and status commands at the same time.
Page 103 DOC06501_Revision F ATS-6501 Users Guide Syntax: status_port Command Example: ATS-6501>status_port To end this session and return to the command port type quit and press enter. Syslog: Description: Displays the current system log file contents for the user specified type. Syntax: syslog (debug /error / info) Command Example: ATS-6501>syslog error Unlog...
Page 104: Appendix E Julian Date Calendars
DOC06501_Revision F ATS-6501 Users Guide Appendix E Julian Date Calendars JULIAN DATE CALENDER (PERPETUAL-NON LEAP YEARS)
Page 105 DOC06501_Revision F ATS-6501 Users Guide JULIAN DATE CALENDAR (FOR LEAP YEARS ONLY)
Page 106: Appendix F Certificate Of Compliance
DOC06501_Revision F ATS-6501 Users Guide Appendix F Certificate of Compliance...

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