XL-GPS Time & Frequency System User Guide 997-01530-01, Rev.
Notices Symmetricom, Inc. Timing Test & Measurement 3750 Westwind Blvd. Santa Rosa, CA 95403-1053 http://www.symmetricom.com Copyright © 2006 Symmetricom, Inc. All rights reserved. Printed in U.S.A. All product names, service marks, trademarks, and registered trademarks used in this document are the property of their respective owners. The manual’s contents do not apply to previously released versions of XL-GPS hardware or software.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Table of Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Limitation of Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 3: Installation/Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Installing the GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Selecting a GPS Antenna Site Outdoors . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Mounting the GPS Antenna . . . . . . . . . . . . . . . . . . . . . . . . . .
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F51 – GPS Antenna Cable Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 F52 – Distribution Cable Delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 F53 – GPS Operation Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 F60 – GPS Receiver Satellite List . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S A: Using F100 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Configuring NTP & SNMP Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Overview of Steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114 Set up the FTP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F: World Map of Time Zones: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 G: Part Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 H: Sales and Customer Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 US Assistance Center . . . . . . . . . . . . . . . . . . . . . . . . . . . .
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 1 vi 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Preface Limited Warranty Each new product manufactured by Symmetricom is warranted for defects in material or workmanship for a period of one year from date of shipment (“Limited Warranty”).
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Proprietary Notice 1 This document, whether patentable or non-patentable subject matter, embodies proprietary and confidential information and is the exclusive property of Symmetricom, Inc. It may not be reproduced, used or disclosed to others for any purpose except that for which it is purchased or loaned. Abut this Manual This manual is subject to change without notice.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 1: Overview of the XL-GPS Time and Frequency Receiver Product Description and Features The XL-GPS Time and Frequency Receiver is high-precision time and frequency system that generates time and frequency outputs from its GPS-disciplined system clock.
S 1 S S S S S S S S S S S S S S • 1 MPPS • 5 MPPS • 10 MPPS • Optional Programmable Pulse • Optional Alarm Relay S S S S S S S S S S S S S S S S S S S S S S S S S In addition, the following software-enabled optional features can be purchased and enabled using a software key at any time: • Network Time Server (NTS) • Programmable Pulse Output (PPO) • Time Interval, Event Time (TI/ET) • Frequency Measurement (FREQ MEAS) The optional OCXO oscillator up
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 2: System Specifications Chassis The chassis is a 19-inch rack-mounted 1U chassis. Size: 1.75 in. x 17.1 in. x 14. in.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S AC Power Supply Input 1 Input connector IEC 320 type Input voltage range Universal, 90 - 260 VAC / 110-300 VDC Input frequency range 47 Hz - 63 Hz Standard I/O The following specifications apply to the connectors on the Main CPU card. RS-232/RS-422 Interface The standard serial data port is a bi-directional EIA standard RS 232C interface.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Network Port 10/100 The Ethernet port interface is: Type: Standard RJ-45 8 pin connector, 10 Base-T and 100 Base-T standards. Frame format: IEEE 802.3 J1 - Optional TI/ET 2 The TI/ET configuration is via the Keypad, Serial I/O, and Network port. J1 accepts an external 1 PPS or Event input signal and measures it against the system-derived time.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S J2 - Optional Programmable Pulse Out (PPO) 1 The PPO allows generation of a precisely synchronized trigger pulse at an arbitrary time and with arbitrary pulse width in integer multiples of 1 μS. The rising edge of the trigger output can be programmed to occur with 1 us resolution.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Code Out The default output is IRIG-B-120 AM. Configuration is via the Keypad, Serial I/O, and Network port.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S GPS Time and Frequency Reference GPS Time and Frequency reference configuration is via the Keypad, Serial I/O, and Network port. 1 Frequency: 1575.42 MHz (L1 signal). Code: Coarse Acquisition (C/A) code. Tracking: Up to 12 satellites. Position Accuracy within 10 meters when tracking four (4) satellites.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S IRIG Code Out Format: IRIG B-120 1 kHz AM, or IRIG B-000 DC Amplitude (AM): 3.0 Vp-p +/-1V, into 50 Ω Ratio (AM): 3:1 +/- 10% Amplitude (DC): TTL into 50 Ω Phasing: In phase with carrier ± 10 μS 2 Alarm Off (High Z) Power off Off (High Z) Error, major or minor enabled alarm fault. On (Low Z) Normal, no major or minor enabled alarm faults. Drive: Open Collector Max.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Support for version 3.0 of the NTP, RFC 1305 as well as the Simple Network Time Protocol (SNTP), RFC1361 is available. In addition, the NTS will respond to TIME protocol requests, RFC868. 1 The NTS will respond to time synchronization requests from hosts using these User Datagram Protocol/ Internet Protocols (UDP/IP): NTP ver. 3.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Oscillators Standard TCVCXO Accuracy: < 1 x 10-12 @ 1 day when locked to GPS Frequency/Timing Stability (Allan Deviation) 1 x 10-9 @ 1 sec 3 x 10-10 @ 10 sec 3 x 10-10 @ 100 sec 2 x 10-10 @ 1000 sec 1 x 10-12 @ 1 day Temp 2 5x10-7, over 0°C to 50°C when not locked to GPS Optional OCXO Accuracy: < 1 x 10-12 @ 1 day when locked to GPS Frequency/Timing Stability (Allan Deviation) 1 x 10-1
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Volatility Statement Statement of Volatility for the XL-GPS Model 1530-602. 1 Memory Size Memory Type Volatile/Non-Volatile User Data IC Location 16 Mb 8 Mb SRAM Non-Volatile No U25 EEROM Volatile Yes U39 This document only pertains to the XL-GPS main processor board, the 86-8000. Default parameters are stored one at a time through the function commands.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 3: Installation/Configuration Installing the GPS Antenna For XL-GPS units include a standard GPS receiver, antenna, and antenna cable. Install as described below. Selecting a GPS Antenna Site Outdoors 2 Select a site that...
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S or conduit that is rigid enough to withstand high winds without flexing. Use guy wires to stabilize masts longer than 10 ft. (3.048 m). 1 Notes: • The XL-GPS requires a 12 Volt-compatible antenna. Antennas not rated for 12 V will be damaged. • Use an antenna splitter to connect a single antenna to multiple receivers. Don’t use a BNC “T” connector.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S GPS Signal Strength Requirements Refer to Figure 2:The required gain at the GPS receiver’s ANTENNA connector is greater than 20 dB and less than 36 dB. A standard 150 foot length of RG-59 coax cable of has a loss of 16-21 dB, which meets this requirement. Abide by the minimum input gain requirements if using other cable types.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S – J2 Output (Rate, PPO)” on page 96, “F113 – J3 Input (Freq Meas)” on page 100. 1 Figure 3: Connectors: ANTENNA, SERIAL I/O, J1, J2, J3, NET, 1 PPS, CODE, ALARM Connecting the Power Supply Warning: Ensure that a disconnect device, such as a switch, with the appropriate voltage/ current rating is provided when operating/installing the XL-GPS. Connect the Power Supply it to a power source.
S S S S S S S S S S S S S S S S S S S S S S S S S S S ENTER Displays Function 100’s first screen: “COMPANY 00-A0-69…” ENTER Displays “IP ADDRESS…” 1-9… Enter the unit’s IP Address (e.g., 192.168.0.11 ENTER Displays “SUBNET MASK…” 1-9… Enter the Subnet Mask (e.g., 255.255.255.000) ENTER Displays “DEFAULT GATEWAY…” 1-9… Enter the Default Gateway’s IP address (e.g., 192.168.0.
S S S S - 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S the Eastern Time Zone portion of the State of Indiana, and most of Arizona (Navajo Indian Reservation in observes DST). Throughout the European Union (EU), Summer Time begins and ends at 1 am UTC. It starts the last Sunday in March, and ends the last Sunday in October. In the EU, all time zones change at the same moment.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Connect a null-modem cable from the PC’s serial port to the XL-GPS’s “SERIAL I/O” port. If needed, configure your PC’s terminal emulation program to match the serial port settings above (9600, 8, N, 1). Set Flow Control to “None”. One terminal emulation program, HyperTerminal, is usually found in Microsoft Windows under Programs – Accessories or Programs – Accessories – Communications.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Installing the Expansion Module Warning: Installing and removing the expansion module can expose dangerous voltages that can cause electric shock resulting in injury or death. Disconnect all power before installing or removing the option card. Dangerous voltages may be present in the expansion module and in the unit even when the power is disconnected.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S at the factory per the customer sales order. S4 J4 S3 J3 2 S2 J2 1 JP2 S1 J1 To change the configuration, identify the jumper at JP2 that corresponds to the output you are configuring. For example, jumper J4 AM corresponds to the J4 output. To generate IRIG-B AM time code, move the plug in JP2 to the AM jumper.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S generate 10 MPPS and the procedure would be complete. The same method can be used to configure any of the outputs.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Rack Mounting the XL-GPS The XL-GPS comes with the following parts needed to mount the XL-GPS securely in any EIA standard 19-inch (48.26-cm) rack: • 2 mounting brackets • 4 flat-head, Phillips screws Have the following items ready and available: • The appropriate AC or DC power source to connect to the XL-GPS’s power supply.
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Note: Ensure that the ambient operating temperature does not exceed +50° C. Install the XL-GPS chassis so that the top and bottom holes are unobstructed and have sufficient clearance to allow 6 cfm of air to pass through the chassis. To maintain recommended operating temperatures, install a rackcooling fan capable of 100 cfm in heavily loaded racks. 24 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 4: User Interfaces The XL-GPS features two user interfaces for controlling the XL-GPS’s functions: • A keypad interface on the front panel of the XL-GPS • A command line interface available through the serial and network ports There is also an Alarm Status LED on the front panel.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Time Display related functions: 1 • Select between the 12 or 24 hour format displayed: “F2 – 12/24 Hour Format” on page 35. • Select between Local, Standard, UTC, and GPS time: “F69 – Time Mode” on page 61.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Pressing the UP ARROW key increments to the next function, F2 - 12/24 HOUR FORMAT, and so on. Pressing the DOWN ARROW key skips to the highest available function, F126 OPTIONS KEY ENTRY, and, from there, decrements through the functions. The section, “5: Function Reference” on page 32, provides detailed information on all of the XL-GPS’s functions.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S To open a function using ENTER: 1 Press Result ENTER Displays the “FUNCTION” prompt 2 Enter the function’s number (“2” in this example) ENTER Displays F2’s first screen, “DISPLAY HOUR FORMAT: 24 HOUR” To open a function using MENU: Press Result MENU Displays F1 on the front panel display UP/DOWN ARROW Scrolls through the list of functions ENTER Opens the function and display
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S To enter numeric values in a function: Press Result ENTER Displays the “FUNCTION” prompt 3 Enters “3” as the function number ENTER Opens Function 3, displays the first screen, “TIME MODE – LOCAL” ENTER Displays the second parameter, “DATE-TIME…/- /” 05152002 Enters May 15, 2002 as today’s date.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S If you try to use a function that is not accessible from the guest login, you will see a message such as “Access denied” or “Command canceled”.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S f100 IP:192.168.46.150 SM:255.255.255.0 G:192.168.46.1 >f100 ic f100 IP:192.168.46.150 SM:255.255.255.0 G:192.168.46.1 > Network port session: WELCOME TO SYMMETRICOM NETWORK INTERFACE! USER NAME: operator PASSWORD: ***** NETWORK INTERFACE 192-8001 (c) 1998 - 2003 SYMMETRICOM ALL RIGHTS RESERVED LOGIN SUCCESSFUL! 2 >f100 ic f100 IP:192.168.46.150 SM:255.255.255.0 G:192.168.46.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 5: Function Reference 1 Function Summary The following summary lists all the XL-GPS functions, identifies the user interfaces from which each one is available, and provides a brief description of the function.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F71 – Oscillator Statistics K, N, S Display the XL-GPS oscillator’s phase, offset, drift, and DAC values F72 – Fault Status K, N, S View clock and power supply fault status F73 – Alarm Control / Status K, N, S View the status of all the alarm indicators. Enable/disable alarms for each indicator. Set alarm thresholds.
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F108 – Oscillator Configuration K, N, S View the oscillator type F110 – J1 Input (TIET) K, N, S Configure the J1 input connector F111 – J2 Output (Rate, PPO) K, N, S Configure the J2 output connector F113 – J3 Input (Freq Meas) K, N, S Configure the J3 input connector F117 – Factory Configuration K Set the brightness of the display on the XL-GPS’s front panel F117 – Factory
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: F = ASCII character F 01 = function number = ASCII space character (one or more) = either no character or + for positive offsets or – for negative offsets = one – or two-digit hours offset from 00 to12 hours : = ASCII character for a colon = two-digit minutes offset = carriage return character = line feed character For example, to set the tim
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Note: Local time is commonly displayed in both 12 and 24 formats. The specifications for Standard, 1 UTC, and GPS call for using the 24-hour format. Applying the 12-hour format to any time type leads to ambiguous time notation. For example, if the 12-hour format is applied to UTC, the clock will display “249:10:21:34” once in the morning, and once at night.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F3 – Time & Date When an optional oscillator is used because a GPS signal is unavailable, use function F3 to manually set the XL-GPS system clock’s time and date. When the XL-GPS is using GPS as timing reference, setting F3 manually is unnecessary. At startup, the XL-GPS synchronizes its time and date to GPS.
S 1 S S S S S S S S S S S S S S S S S S S : = ASCII character for a colon delimiter. = one- or two-digit hours. = two-digit minutes. = two-digit seconds. = carriage return character. = line feed character.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: F = ASCII character F. 04 = function number. = ASCII space character (one or more). = One or more separator characters: either space, comma or tab.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S corresponding time quality characters in text outputs of F8 and F9. (See “F8 – Continuous Time Onceper-Second” on page 42 and “F9 – Time On Request” on page 44) 1 In addition, a time quality indicator is encoded in outputs of the IRIG-B AM or DC Expansion module (see “F90 – Code Output Configuration” on page 72).
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S For example, to display the time quality status and flags, enter: F5 If F5 is enabled, XL-GPS responds (example): F5 ENABLE 00000001000 00000010000 00000100000 00001000000 If F5 is disabled, XL-GPS responds: F5 DISABLE 2 To enable time quality reporting, and change the thresholds of the time quality flags, enter: F5 ENABLE 2000 20000 200000 2000000 XL-GPS responds: O
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F 6 = function number = ASCII space character (one or more) = ENABLE or DISABLE = carriage return character = line feed character For example, to display the Keypad Lock status, send: F6 XL-GPS responds: F6 DISABLE To enable Keypad Lock, send the following string: F6 ENABLE XL-GPS responds: OK To dis
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S reference source and synchronizes with it, F8 displays the new time-of-year information. The transition looks like this: 365:16:00:14? 365:16:00:15? 365:16:00:16 365:16:00:17 199:13:56:03 199:13:56:04 2 In the first two lines above, the unsynchronized time is followed by a “?” time quality character. In this case, the “?” indicates that the XL-GPS is unlocked to a reference source.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The time quality character, “Q”, is one of the following characters: SPACE = Time error is less than time quality flag 1’s threshold 1 .
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The default output string is as follows: DDD:HH:MM:SS.mmmQ where: = ASCII Start-of-Heading character = ASCII Carriage Return character = ASCII Line Feed character DDD = day-of-year. HH = hours. MM = minutes. SS = seconds. mmm = milliseconds. : = colon separator.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F11 – Time Output Format 1 Use function F11 to review or change the format of the time output string used in F8 and F9. The asshipped factory setting for F11 format is null, which enables F8’s and F9’s default time output formats.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S To see the Time Output Format, enter: F11 XL-GPS responds: F11 DDD:HH:MM:SS.mmmQ To remove the day, hour, minute, second, microsecond, or a character from the time output format (other than the ASCII or characters), enter the following string replacing the character you want to remove with an “X”: 2 F11DDD:HH:MM:SS.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S XL-GPS responds: OK 1 With the above settings, F8 displays: |10:45:01* With the above settings, F9 displays: |10:45:01.234* The new time format above suppresses days, and replaces the first colon (:) separator with a vertical bar. This enables the remaining characters, which assume their default values.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S XL-GPS responds (example): F13 TIME ERROR -0.002932863 F18 – Software Version Request Use function F18 to display the current firmware version numbers of the firmware in the XL-GPS: 2 • Bootloader • Software (firmware) • File System • Project Rev # • FPGA 1 Command Line Use Command Line Function F18 to obtain the system’s firmware version information.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Keypad 1 When Position Mode is “LLA”, the position of the antenna is displayed in degrees, minutes, and seconds using the following format: <°>'" where: = N or S for latitude; E or W for longitude; – for negative altitude and or + for positive altitude. = two-digit degrees for latitude or three-digit degrees for longitude.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: F50 = Function 50 = ASCII space character one or more. = Separator LLA = LLA mode = carriage return character. = N or S for latitude; E or W for longitude; – for negative altitude and or + for positive altitude. = two-digit degrees for latitude or three-digit degrees for longitude. d = ASCII character d = two-digit minutes.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F 50 = function number = ASCII space character = Either + or - for the position of the ECEF XYZ coordinates = Antenna X-position in meters to tenths of a meter = Antenna Y-position in meters to tenths of a meter = Antenna Z-position in meters to tenths of a meter m = ASCII character m for Meters = altitude in met
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The XL-GPS responds using the following format: F51<+>ns where: F = ASCII character F (f or F for input string). 51 = the function number. = ASCII space character one or more. = carriage return character. = one or more space characters. 2 = 1 to 6 digit delay from 0 nS to 999999 nS. ns = nanoseconds (ns or NS for input string).
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S To calculate what the setting should be, multiply the delay/foot by the length of the cable in feet. The typical delays for the following cable types are: 1 • RG-58 – approximately 1.4 ns/foot • RG-59 – approximately 1.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F53 – GPS Operation Mode Use function F53 to set the GPS M12 Receiver in Time Mode or Dynamic Mode. Select “Dynamic Mode” if the position of the receiver is subject to frequent change, or if it is in continuous motion. For example, use Dynamic Mode when the XL-GPS is used in mobile vehicles such as ships, land vehicles, or aircraft.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F (f or F for input string). 53 = the function number. = ASCII space character one or more. = one or more space characters. = DYNAMIC MODE or TIME MODE = carriage return character. = line feed character.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S • Current: the XL-GPS is using the satellite’s GPS signal to calculate time and position. • Bad: the GPS satellite is transmitting information that it has been removed from service. • Rejected: the XL-GPS M12 receiver’s TRAIM feature has detected anomalous signals from this satellite and has quarantined it from the timing solution for 12 hours.
S S S F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 F60 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S prn1 good current -159dBW prn2 good current -162dBW prn3 good current -163dBW prn4 unknown prn5 unknown prn6 unknown prn7 unknown prn8 good current -161dBW prn9 unknown prn10 unknown prn11 unknown prn12 unknown prn13 good current -159dBW prn14 unknown prn15 un
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Command Line To display the current status of F66, enter a command using the following format: F66 F66 responds using the following format: F66 2 where: F = ASCII character F 66 = function number = ASCII space character one or more. = Off or Manual. 1 = If is Manual, are the dates it enters and exits DST.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 = time to enter DST in 24-hour format. = one or more separator characters, either space comma or tab characters. For output strings this will be a single space character. = which week to enter DST, 1, 2, 3, 4 or 0 (for last). = day of week to enter DST, 1 through 7 where Sunday is 1.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F69 – Time Mode Use function F69 to select the time type displayed by: • The XL-GPS’s front panel display • “F8 – Continuous Time Once-per-Second” on page 42 • “F9 – Time On Request” on page 44 • “F90 – Code Output Configuration” on page 72 Select between the following types of time: 2 • UTC (Universal Coordinated Time) differs from GPS Time by the addition of leap-second corrections
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S For example, enter: F69 1 XL-GPS gives one of the following responses: F69 F69 F69 F69 GPS UTC LOCAL STANDARD To set the time mode, enter a command using the following format: F69 where: F = ASCII character F. 69 = Function number. = ASCII space character. = Time Type. Either GPS, UTC, LOCAL, or STANDARD.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The phase is the instantaneous error in seconds between the oscillator and the control loop zero servo point. The frequency offset is computed using an averaging time that is equal to the effective averaging time of the oscillator controller. The oscillator Drift Rate is computed using a 24-hour average and is the daily Drift Rate of the oscillator.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F72 – Fault Status Use function F72 to display the fault status of the clock.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Upate the alarm settings when adding or removing the expansion module from the XL-GPS.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Alarm Definitions Clock Status 1 Locked: The XL-GPS clock is locked to the GPS reference source and is operating within the F73 Time Error Threshold. Unlocked: Check the other alarm indicators to determine the cause of the problem. PLL Locked: The clock PLL is locked and operating nominally. Unlocked: The clock PLL is malfunctioning. Return to Symmetricom for service.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S LED Blink When LED Blink is enabled, the Alarm Status LED on the front panel blinks when it is green or amber. The LED does not blink when it is red, even if LED Blink is enabled. Some users disable LED Blink to ensure that the LED’s color (state) is displayed without interruption.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Save Changes Yes: Applies all user-entered changes to the F73 configuration. 1 No: Clears all user-entered changes and exits the function. Keypad Note: The Alarm Latch asterisk is not the same as the “reference source unavailable” asterisk that can sometimes be seen on the STATUS display.
S A S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S = '-' DAC OK 'X' DAC Fault B = '-' First time lock OK 'a' Clock has locked since power on but still within the user defined power on time out 'A' Clock has not locked since power on C = '-' Time error OK 'U' Time error Fault D = '-' Timeout OK 'T' Timeout Fault E 2 = '-' NTP OK or option not enabled 'N' NTP Fault F = '-' Future Use G = '-' Future Use H = '-' Future Use I = '-
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Where the value of each character in <123456789ABCDEFGHIJ> field is either 'E' or 'D'. 'E' means the corresponding indicator is enabled, and can trigger an alarm if it enters a fault state. 'D' means the indicator is disabled (or not available) and will not trigger an alarm if it enters a fault state.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The XL-GPS responds: F73THRESHOLDns where is the time error threshold in nanoseconds, between 0 and 9999. To set Time Error Threshold, enter a string the following format: F73THRESHOLD 2 The XL-GPS will set the new time error threshold and returns the following string if the command is successful.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Use the SUPPRESS command to suppress all F73 faults from triggering alarms for a specified duration after the XL-GPS power is turned on. To check the SUPPRESS status, enter: 1 F73SUPPRESS The XL-GPS responds in the following format: F73POWER-ONMINORALARMSUPPRESS where: F = ASCII character F. 73 = function number.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Although the factory configuration outputs UTC time in 24-hour format, the following can be used to modify the code output of F90 for non-standard applications: • • “F2 – 12/24 Hour Format” on page 35 selects between a 12 or 24-hour time format. “F69 – Time Mode” on page 61 selects between the following timescales: Local, Standard, GPS, UTC, and TAI.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F100 – Network Port Configuration & XL-GPS Firmware F100 provides two groups of commands: 1 • Group 1, available through the keypad and the command line, provides access to network port settings and hardware/Firmware status information.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The following table gives the command line equivalents for each of the preceding parameters: Description “F100” followed by: Comments Ethernet address (MAC address) EA Displays information IP Address IP Displays, configures and reboots Subnet Mask SM Displays, configures and reboots Default Gateway G Displays, configures and reboots IP Address, Subnet Mask, IC and Default Gateway
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F100 EA – Ethernet Address 1 Use function F100 EA to display the Ethernet Address (MAC Address) (Note: An Ethernet or MAC Address is not the same thing as an IP Address), a fixed, six-byte, hexadecimal value specific to the unit’s standard network port. The first three bytes are registered to Symmetricom Inc.; the last three bytes are the hex value identifying the network port.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S For example, enter: F100 IP 206.54.0.21 XL-GPS responds: OK RESETING THE UNIT PLEASE WAIT… To obtain the IP address of the unit Standard network port, enter: 2 F100 IP XL-GPS responds (example): F100 IP 206.54.0.21 1 The three commands, F100 IP, F100 SM, and F100 G, can be concatenated to set all three values simultaneously.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F 100 = unit function number = space IP = specify IP command = dotted decimal address (0 to 255) = input line terminator For example, enter: F100 SM 255.255.255.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: F = ASCII character F 100 = unit function number = space IP = specify IP command = dotted decimal address (0 to 255) = input line terminator 2 For example, enter: F100 G 206.54.0.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S selecting between 10 Base-T and Auto. If you have questions about your unit, contact H: Sales and Customer Assistance (page 143).
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: F = ASCII character F 100 = unit function number = space LOCK = specify LOCK command = input line terminator For example, enter: 2 F100 LOCK To users on the serial port, XL-GPS responds: OK 1 Or, to users on the network port, XL-GPS gives the following response and then closes the port: GOODBYE.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S XL-GPS responds: F100 L LOCKED 1 or F100 L UNLOCKED F100 ST – Self Test Status Use function F100 ST to display whether the Self Test Status parameters passed or failed. The parameters include: flash-memory checksum test, nonvolatile (NV) RAM, Serial Port, and version check.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: F = ASCII character F 100 = Unit function number = Space ST = Specify ST command FLASH/CRC: = Specify flash checksum result RAM: = Specify RAM test result SERIAL: = Specify Serial Port test result. 2 NVRAM VER: = Specify version test result.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S To write the BootLoader to the flash, send the F100 BH command with the FTP host, file path and name, and then enter: 1 F100 BUB XL-GPS responds: OK For example: >f100 bub OK BURNING FILE 192-8000.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S SEC: 20 RE: 0 SEC: 21 RE: 0 SEC: 22 RE: 0 SEC: 23 RE: 0 SEC: 24 RE: 0 SEC: 25 RE: 0 SEC: 26 RE: 0 SEC: 27 RE: 0 SEC: 28 RE: 0 FLASH SUCCESSFULLY PROGRAMMED CRC32 = 0x2D9A260A F100 BF – Burn File System 2 Note: See “B: Upgrading System Firmware” on page 118. Use function F100 BF to burn file system when upgrading firmware, to write a file system to the flash memory.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The existence of the FPGA program file on the FTP server and an Ethernet connection is checked when the command is issued. 1 To write the FPGA program to the flash, send the F100 BH command with the FTP host, file path and name, and then send the following command: F100 BUFP This command is only valid for XL-GPS with an 86-8000 Rev. G or higher Main CPU card.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F100 CONFIG – Configure NTP & SNMP Notes: • See “A: Using F100 Configuration” on page 114. • NTP is an optional feature. If purchased at the same time as the XL-GPS, it comes enabled on the system. To purchase this option after you have purchased the XL-GPS, contact Symmetricom Sales. See “H: Sales and Customer Assistance” on page 143.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S To move the SNMP config file back onto the XL-GPS, type: >f100 config snmp set host: dir: 1 To move the NTP and SNMP config files back onto the XL-GPS, type: >f100 config ntp snmp set host: dir: Here’s an example of a successful SNMP and NTP config file transfer: >>f100 config set ntp snmp host:192.168.0.1 dir: Host config ip 192.168.0.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S XL-GPS responds: F100 J FACTORY MODE=1 or F100 J FACTORY MODE=0 F100 K I L L – Reboot Use function F100 K I L L to reboot the unit. Use F100 K I L L after upgrading the system firmware. 2 K I L L is a case-sensitive command. When entering this command, use all capital letters and put spaces between each letter.
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S SYMMETRICOM GPS DEVICE. XL-GPS INITIALIZATION SUCCESSFULLY COMPLETED. > F100 P – Change User Password Use function F100 P to change a user password. In a network port session, F100 P changes the password of the user you logged in as; operator or guest. In a serial port session, F100 P changes the password of the operator user. See “Command Line Interface” on page 29.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F100 PI – PING Use function F100 PI to ping a remote host to see if it is reachable. If no IP Address is provided, F100 PI uses the XL-GPS’s own IP Address, and tests whether the XL-GPS’s network port has a good network connection. To ping a known host, enter: F100 PI For example: 2 F100 PI 206.254.000.021 The unit responds (example): PING 206.254.000.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F 100 = unit function number = space PN = specify User Name command = input line terminator XL-GPS responds: ENTER NEW USER NAME: When you enter a new user name, XL-GPS responds: CONFIRM NEW USER NAME: Enter the same new user name again, to confirm the spelling.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F108 – Oscillator Configuration Use function F108 to display the type of oscillator being used: • TCXO • OCXO For oscillator specifications, see “Oscillators” on page 11. Command Line 2 The oscillator type is defined by the hardware configuration of the clock, and is not configurable through the command line or keypad user interfaces.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F110 performs two separate functions: 1 • Configure the J1 input port for a TIET signal • Display TIET information. Keypad • J1 Input Config: Displays “DISABLE” if the function has not been purchased and installed. Displays “TIET” if the TIET option has been purchased and installed.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F = ASCII character F. = 100K, 50 = line terminator, either a carriage return and line feed for output strings or a carriage return only for input strings.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F111 – J2 Output (Rate, PPO) 1 Use function F111 to configure the J2 Output to generate one of several rates or, optionally, a Programmable Pulse Output (PPO). F111 selects from one of the following rates: 1 PPS, 10 PPS, 100 PPS, 1 kPPS, 10 kPPS, 1 MPPS, 5 MPPS, 10 MPPS, or PPO. The default factory setting is 10 MPPS. Note: PPO is an optional feature.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F111 Or F111PPO Where: F = ASCII character F 111 = Function number PPO = ASCII character string "PPO" = ASCII space character one or more = Output rate or type, RATE 1 PPS, RATE 10 PPS, RATE 100 PPS, RATE 1 kPPS, RATE 10 kPPS, RATE 100 kPPS, RATE 1 MPPS, RATE 5 MPPS, RATE 10 MPPS 2 & = Time-of-year with microse
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S OK Single PPO pulse output 1 For example, to produce a a single pulse with duration of 1 second on January 1, enter: F111 PPO 001:00:00:00.000000 001:00:00:01.000000 XL-GPS responds: OK Or, for example, to produce a single pulse with duration of 1 microsecond on January 1, enter: F111 PPO 001:00:00:00.
S S S S S S Clock Reading S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Pulse 001:00:00:00.000000 Start 001:00:00:00.000001 No Change 001:00:00:01.000000 Stop 001:01:00:00.000000 No Change 001:00:00:00.000000 Start (etc...) 2 For example, to produce a repetitive 5 microsecond pulse occurring every 10 microseconds (i.e.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Or, for example, to produce a repetitive one-microsecond pulse occurring on every hour, enter: F111 PPO XXX:XX:10:00.000000 1 XL-GPS responds: OK F113 – J3 Input (Freq Meas) Note: Frequency Measurement is an optional feature. If purchased at the same time as the XL-GPS, it comes enabled on the system.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Theory of Operation: Freq Meas uses a heterodyne phase error multiplier to achieve high resolution at short sample periods. Using its internal disciplined frequency, the XL-GPS records or timestamps the zero crossing of the J3 input frequency once per measurement cycle with 240 picosecond resolution. The number of zero crossings between successive measurement intervals is also recorded.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S = ASCII character F. F FREQ MEAS = ASCII character string "FREQ MEAS" to set J3 to make frequency measurements 1 = ASCII space character one or more. = FREQ MEAS Input Frequency: 1MHZ, 5MHZ, 10MHZ = Input Impedance: 1K or 50 = Frequency Measurement Interval. This is the gate time of the measurement. Range: [000001, 999999] in seconds.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Where Interval is = ASCII character string “Interval is” = ASCII space character or separator.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F. 117 = function number. = ASCII space character one or more. NTP = NTP option FREQ MEAS = FREQ MEAS option TIET = TIET option PPO = PPO option = carriage return. = ENABLE or DISABLE = line feed.
S • S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S GPS Acquisition State - (Dynamic Mode, Stop Site Survey, Stop TRAIM, Start Site Survey, Start TRAIM, Survey Position, Position Hold, TRAIM Active) Operation Each of F119’s information, status, and configuration items are explained below.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Following initialization, the front panel display of an XL-GPS with only one GPS receiver (GPS Status: Unlocked) would show the following: 1 UNLOCKED * GPS PRI LOCAL 365:16:01:05 1969 With the GPS receiver as a valid time reference, the following changes would take place: • The asterisk (“*”) indicating the absence of a valid reference would disappear • The system status would cha
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S reestablish its current most accurate position. • Position Hold: The receiver has determined its most accurate position, and is using this static position to calculate its most accurate time solution.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S where: 1 F = ASCII character F. 119 = function number. = ASCII space character one or more. = line terminator, either a carriage return and line feed for output strings or a carriage return only for input strings. XL-GPS responds: OK F126 – Options Key Entry Use function F126 to enter the Options Key, which enables certain functions (e.g.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 6: GPS M12 Receiver (87-8028-2) Introduction The optional GPS M12 Receiver acts as a Stratum 0 timing reference source to the XL-GPS Time and Frequency System. It tracks up to 12 L1 GPS satellites, decodes their signals for time and position, and feeds this data to the XL-GPS through the internal backplane.
S 1 S S S S S S S S S S S S S S S S S S S S S • “F51 – GPS Antenna Cable Delay” on page 52 • “F60 – GPS Receiver Satellite List” on page 56 • “F69 – Time Mode” on page 61 • “F73 – Alarm Control / Status” on page 64 • “F90 – Code Output Configuration” on page 72 • “F119 – GPS Receiver Configuration” on page 104 110 S S S S S S S S S S S S S S S S S S 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 7: XL-GPS-Generated Messages Error Messages ERROR 01 VALUE OUT OF RANGE You entered a command using the correct format that contained a value, probably numeric, that was outside the range of acceptable values. 2 Recovery Action: Re-enter the command using an acceptable value. ERROR 02 SYNTAX You entered a valid command, but using the wrong format.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Recovery Action: Verify correct parameter values. If correct, restart the XL-GPS. If this error message persists, contact Symmetricom Technical Customer Service. 1 ERROR: Action (get or set) is not specified You have omitted the “get” or “set” parameter from the F100 NTP Configuration command. Recovery Action: Re-enter the command, specifying the desired action.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Informational Messages Messages in this section inform you of an event and do not require any action on your part. Deleted previously set IP host address Your last action deleted the previously set IP host address. NOTICE: Cannot respond to command because Utility Port session has priority. 2 A Utility Port session has started and takes precedence.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S A: Using F100 Configuration 1 Configuring NTP & SNMP Parameters F100 CONFIG instructs the XL-GPS unit to transfer its NTP and SNMP configuration files to an FTP server so the user can edit them. When finished editing, the user transfers the config files back to the XL-GPS using the F100 CONFIG command. Overview of Steps • Set up an FTP server on your workstation.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S For other operating systems and configurations, consult the appropriate documentation for obtaining the FTP server’s IP address. Copy the Configuration Files to the FTP Server Telnet to the XL-GPS or open a terminal session to it over the serial port. Using the command line, enter the commands below. Replace with that of the workstation/FTP Server.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Edit the Configuration Files 1 In Windows, edit the configuration files using a text editor such as Notepad or Wordpad. For more information, see “D: Network Time Protocol (NTP)” on page 135. If using the preconfigured FTP server (downloaded from http://www.ntp-systems.com/zip/warftpd1.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Resetting... If you get “Error: Can’t open source file”, verify that the FTP server’s <> is running. After XL-GPS receives the configuration files, it reboots, and goes through the normal startup process. End of Procedure 2 1 5 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S B: Upgrading System Firmware Caution: Consideration must be given to the firmware and the hardware version numbers of the XL-GPS and it’s optional 1 components. Consult with Symmetricom’s Customer Service department before performing upgrades. This section explains how to completely upgrade the system firmware. This is done using the F100 BH, F100 BUB, F100 BU, and F100 BF commands.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S network traffic raises the possibility that the system software files could be corrupted, yielding the XL-GPS inoperable. Telnet to the XL-GPS over the network. For example, at your workstations command line, type “telnet 192.168.46.10”. When prompted, log in to the unit using the operator’s username and password; the user name and password are usually “operator” and “janus”.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Then ‘burn’ the bootloader to the XL-GPS’s flash memory by entering: F100 bub 1 XL-GPS responds: OK BURNING FILE 192-8000.bt WITH SIZE 452164 TO PARTITION:0 SECTOR:0 SEC: 0 RE: 0 SEC: 1 RE: 0 SEC: 2 RE: 0 SEC: 3 RE: 0 SEC: 4 RE: 0 SEC: 5 RE: 0 SEC: 6 RE: 0 FLASH SUCCESSFULLY PROGRAMMED CRC32 = 0x9EFBE60A Do the same for the ‘firmware’ (.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Then do the same for the ‘file system’ (.fs) file: F100 bh / For example: F100 bh 192.168.49.120 /192-8002.fs XL-GPS responds: BURN HOST IS READY 2 Then enter: F100 bf XL-GPS responds: OK BURNING FILE 192-8002.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Message: >Can't set the burn host - wrong IP address 1 Cause: The IP address entered for the FTP server is incorrect. Check that you've entered the IP address of the FTP server (not the XL-GPS) and re-enter if necessary. Message: >Can't open file: 192-####.## Cause: There's a problem with the FTP server that is preventing access to the file.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S An example XL-GPS response is: F100 VER BOOTLOADER SOFTWARE FILE SYSTEM NVRAM VER PROJ REV 192-8000 192-8001 192-8002v1.80 5 #1.80 The “PROJ REV” number is the firmware version number. The “v” number in “FILE SYSTEM” is the file system version number, which may not be the same as the firmware version number.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S C: SNMP 1 The mibs for this product are available on the product CD. Key: MIB=/config/ttmib.o, Don’t touch. This is a factory setting. GenTraps=YES, Global enable/disable setting for all SNMP traps. YES, the default setting, enables all traps. NO disables all traps. This setting overrides all the other TRAP parameter settings. NAME = The community name password.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S For the XL-GPS, groups 1, 2, 3, 4 and 5 have been deprecated and a new group 6, products, has been added. For the XL-GPS and future Symmetricom products, groups 1 through 5 will be absent from the XL-GPS Enterprise MIB definition supplied with the unit.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S ID is defined as Symmetricom.products.xlGps for the XL-GPS product and Symmetricom.products.xxx for all subsequent products. 1 XL-GPS System Group The xlGpsSystem system group contains the systemFault and the systemStatus groups. These groups contain information describing the operation of the XL-GPS system as a whole.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The XL-GPS Fault Group x liS y s te m = 1 s y s te m S ta tu s = 2 s y s te m F a u lt = 1 2 s y s te m F a u lt H is to ry = 3 s y s te m A la rm D a ta = 1 a la rm D a ta Ip A d d r a la rm D a ta T im e S ta m p a la rm D a ta C o d e a la rm D a ta S ta tu s D e s c rip to r = = = = 1 2 3 4 s y s te m F a u lt C o n fig = 2 s y s te m F a u lt C o n fig D a ta = 1 c o n fig D a ta L
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S The systemFaultConfig sub-group contains parameters to control the generation of system alarms. The timeout, threshold and power on suppress values are contained in the systemFaultConfigData group. Also in this group is a method object configDataLatchClear. By setting this object the user clears all latched faults.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S XL-GPS MainCard Group xliM a in C a rd = 2 n tp = 1 n tp In P k ts n tp O u tP k ts n tp In E rro rs n tp A u th F a il n tp D e s ire d A c c n tp E s tE rr n tp S y s L e a p n tp S y s H o s tM o d e n tp S y s S tra tu m n tp S y s P re c is io n n tp S y s R o o tD e la y n tp S y s R o o tD is p n tp S y s R e fC lo c k Id e n t = = = = = = = = = = = = = 1 2 3 4 5 6 7 9 10 11 12 13 14
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S This model makes adding additional products and maintaining compatibility a straightforward process. Each additional product will be given a branch in the tree under enterprises.SymmetricomTtm.products. For now, we have only enterprises.SymmetricomTtm.products.xlGps and enterprises.SymmetricomTtm.products.nic56k. Future products will take the form enterprises.SymmetricomTtm.products.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 12,000 private addresses and Symmetricom is by comparison one of the earlier adopters of SNMP with an Enterprise MIB! RFC – Request for Comments: A document reviewed and released by the IANA that defines the formal definitions of various Internet communication protocols and related information.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S system. Click the button again to confirm the action. 4. 1 Click the button to exit the “Load/Unload MIBs:SNMP” dialogue box. Configure Traps 1. Select the menu item “OptionsEvent Configuration”. A pop window titled “Event Configuration” will appear. 2. In the “Event Configuration” window, scroll through the “Enterprises” list to the bottom and select “XL-GPS”. 3.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Additional OpenView configuration 1. Select the menu item “Options->SNMP Configuration”. A popup titled “SNMP Configuration” will appear. 2. In the “SNMP Configuration” popup: set the “Community” field to “public” the “Set Community” field to “private” and the “Retries” field to 0. XL-GPS Configuration SNMP Configuration 2 Follow the manual to load the snmp.
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 9. Select the menu item “xlGps->Configuration”. In the popup “xlGpsconfig” verify that the “maskPllSynthesizer” entry is set to “enabled”. 10. Repeat steps 4-9 in turn for each additional entry under systemFaultConfigMasks. S Trap Testing 1. 1. Perform an action to generate a trap. 2. 2. Select the menu item “Fault->Alarms”. 3. 3.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S D: Network Time Protocol (NTP) As an option, Symmetricom can factory configure the XL-GPS to function as a Stratum 1 network time server. Network time servers use Network Time Protocol (NTP) to synchronize computer clocks across a network. Alternatively, customers can upgrade a XL-GPS unit in the field by purchasing the NTS option and installing a key to enable it. Support for version 4.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Editing MD5 keys on the XL-GPS 1 NTP keys are needed if you are using NTP in broadcast mode with MD5 authentication. This (and the following) section provide configuration guidelines. For additional information, consult Dr. Mills NTP site at: http://www.ntp.org Broadcast mode adjusts its periodicity according to feedback from its broadcast client.
S S S S S 2 S M S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S TTXL-GPS When you invoke the NTP client at the command line, use the following options: – b to turn on broadcast reception – k /etc/ntp.keys to specify the name and location of the keys file 2 – d for debugging. An example command line might look like: ntpd –d –d –d –b –k /etc/ntp.keys Important lines in the ntp.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S E: Time Code Formats 1 The following section provides a summary description of the three time code types used by the XL-GPS. The definitive IRIG time code specification, the Range Commanders Council’s IRIG Serial Time Code Formats, IRIG Standard 200-98, is available on the Web at http://jcs.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S beginning of each frame and a position identifier marks the end of every ten elements. IRIG-B has ten position identifiers per frame. The elements prior to position identifier P5 comprise the time of year segment. The first ten elements encode the seconds, the second ten elements encode the minutes and so on through days.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Figure 4: IRIG Standard Format A 1 140 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S F: World Map of Time Zones: 2 1 5 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S G: Part Names 1 Standard Chassis • Model XL-GPS 1UChassis w.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S H: Sales and Customer Assistance Symmetricom's Sales and Customer Assistance Centers are a centralized resource to handle all your customer needs. Our Centers are staffed with logistics personnel to handle product quotes, order status and scheduling as well as technical personnel for technical support, installations or service quotes.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S 1 144 997-01530-01, Rev.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Index Numerics 10/100 BASE- T 79 12/24 Hour Format 35 87-8028-2 109 A Accuracy 3 Alarm 25 Alarm Control / Status 64 Alarm Status LED 25 Alarm Status LED 25, 64 Antenna Cable Delay 52 Aux Ref 6 J3 Input 100 2 1 B BASE- T 79 BF 85 BH 83 BootLoader 83 Bootloader Mode 92 BU 84 BUB 83 BUFP 85 Burn 84 Burn BootLoader 83 Burn File System 85 Burn FPGA Firmware 85 Burn Host 83 5 C Cable Delay Distr
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S CONFIG Parameters 87 Configuration Factory 103 GPS Receiver 104 Oscillator 93 Configure NTP & SNMP Parameters 87, 114 Continuous Time Once-per-Second 42 Customer Service 143 D Daylight Saving Time (DST) Mode 58 Deleted previously set IP host address 113 Dest file bytes written Configuration files transferred successfully! 113 Display Configuring Time 17 Distribution Cable Delay 53 DST
S S S S S S S S S S S S S S S S S S S S S S F100 BF – Burn File System 85 F100 BH – Burn Host 83 F100 BU – Burn 84 F100 BUB – Burn BootLoader 83 F100 BUFP – Burn FPGA Firmware 85 F100 CONFIG – Configure NTP & SNMP 87 F100 CONFIG – Configure NTP & SNMP Parameters 87, 114 F100 EA – Ethernet Address 76 F100 G – Gateway 78 F100 IC – Network Port Settings 79 F100 IP –IP Address 76 F100 J – Factory Mode Jumper 88 F100 K I L L – Reboot 89 F100 L – Remote Lock Status 81 F100 LOCK/UNLOCK – Remo
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Factory Mode Jumper 88 Fault Status 64 Firmware 74 Firmware Upgrade 118 Format Time Output 46 Freq Meas 6, 100 Frequency Measurement 6, 100 Function Reference 32 Function Summary 32 Future Expansion 129 G G 78 Gateway 78 Goodbye.
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S K K I L L 89 Keypad Examples 27 Operation 27 Keypad Lock 41 Keypad/Display Interface 25 L L 81 Latitude, Longitude, and Altitude 49 LED 25 Alarm Status 25 LLA/XYZ Position 49 Lock Keypad 41 LOCK/UNLOCK 80 Logging In 29 Logging out 30 2 1 M MD5 136 Measure Frequency Input 100 Menu Display 26 Messages Informational 113 XL-GPS-Generated 111 MIB Structure 124 Mounting the GPS Antenna 13 N Netwo
S 1 S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S NTP 9 Options Key Entry 108 order status 143 order status and scheduling 143 Oscillator Statistics 62 Oscillator Configuration 93 P P 90 Part Names 142 Password 29 Change 90 Changing 30 PI 91 PING 91 Position 49 Power Supply 16 PPO 96 Private Enterprise MIB Structure 124 product quotes 143 Programmable Pulse Output 96 Q quotes 143 R Rack Mounting 23 Rate Output J2 96 Reboot 89 Remote
S S S S S S S S S S S S S S S S S S Configuring and Testing 131 Glossary of Related Terms 130 SNMP Addressing 124 SNMP Private Enterprise MIB Structure 124 Software System Firmware (upgrading) 118 Software Version 49 Source file bytes read 113 Specifications 3 AC Power Supply 4 Chassis 3 Code Out 7 Environmental 3 GPS Reference 3 GPS Time and Frequency Referenc 8 J1 - Optional TI/ET 5, 6 J2 - Optional Programmable Pulse Out (PPO) 6 J2 - Rate Out 5 J3 – Optional Frequency Measurement 6 Netw
S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S S Time-Quality Setup 39 U 1 Upgrading 74 System Firmware 118 US Assistance Center 143 User Interfaces 25 User Name 29 Change 91 Username Changing 30 Using F100 Config 114 V Version Software 49 Volatility Statement 12 X XL-GPS Configuration 133 MainCard Group 129 Overview 1 Product Description and Features 1 Rack Mounting 23 Software 74 System Group 126 System Status Group 128 Traps 129
