Page 1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...
Page 2 XLi Time & Frequency System User Guide Issue 8- June 2008 Manual Part Number: XLi-User Manual CD Part Number: Xli-Man-CD XLi Time & Frequency System XLi-man, Issue 8, 6/17/08, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 3 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 XLi hardware or software. XLi Time & Frequency System XLi-man, Issue 8, 6/17/08, Rev H Artisan Technology Group - Quality Instrumentation ...
Page 4: Table Of Contents
1: Equipment Overview ..........1 XLi Time and Frequency System Description and Features ....1 Features and Options .
Page 5 XLi with GPS and Time Code References ......30 XLi with two optional GPS receivers ....... . .30 Installing the Expansion Module .
Page 6 F74 – Clock Source Control ......... . 107 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 7 F90 – Code Output Configuration ........116 F100 – Network Port Configuration & XLi Firmware ..... .117 F100 EA –...
Page 8 Specifications ..........192 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 9 9: Software Options ...........227 Symmetricom TimeMonitor Software ........227 Logging TIET and Freq Meas Data .
Page 10 The XLi Fault Group ........274 The XLi System Status Group ....... . . 275 XLi MainCard Group .
Page 11 IRIG-B Time Quality Flags ........288 XLi IRIG Time Code Input/Output ......288 NASA 36 .
Page 12: 1: Equipment Overview
The XLi provides high-precision time and frequency signals. Its modular design allows customization for a wide range of applications. In its standard configuration, the XLi functions as a Time Code Unit which receives an IRIG time code input, synchronizes its internal oscillator to that input, and produces time code and frequency outputs.
Page 13 • RS-232/422 Serial I/O Port • Vacuum florescent display, 19-button keypad • 90-264 VAC In addition, the XLi’s standard features can be expanded with the following optional configurations: • GPS C/A Receiver References • Programmable Pulse Output (PPO) • Network Time Server (NTP) •...
Page 14: Clock Architecture
Clock Architecture The following figures provide a simplified view of the XLi’s clock architecture. 16.384 MHz Osc. PLL Aux Ref Aux Ref - 1/5/10 MHz Phase Measurement Clock DPLL DAC Select 10 MHz Osc. 200 MHz PLL 1 PPS A...
Page 15 110/220 AC 18-36 VDC User I/O User I/O 36-72 VDC Figure 2: Interface Architecture Block Diagram XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 16: 2: System Specifications
Green LED on with no fault and AC power applied. Green LED off with fault or no AC power applied. Fan: Exhaust 3-6 CFM XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 17: System Time & Frequency Accuracy
Accuracy of DC Level Shift Code Output: See “F110 – J1 Input (Time Code, TIET)” on page 137. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 18: Have Quick Input
Aux Ref Input If an Aux Ref input is available and enabled, the XLi assumes that Aux Ref is a better frequency source than its own oscillator. If a timing reference is not available (or becomes unavailable) and Aux Ref is enabled, the XLi locks to the Aux Ref input.
Page 19: Standard Inputs And Outputs
The Ethernet port interface has a standard RJ-45 connector that provides IEEE 802.3 frame 10/100 Base-T Ethernet. The XLi can optionally be factory configured as a Network Time Protocol (NTP) server, which can be used to synchronize client computer clocks over a network. This function is only available with GPS and IRIG B input.
Page 20: J1 Input - Time Code Or Time Interval - Event Time
The Time Interval - Event Time (TIET) option measures a 1 PPS or Event input signal on J1 against the XLi derived time. The rising edge of the pulse is measured against XLi time with 5 nS resolution. Pulse Width 100 nS, min.
Page 21: J2 Output - Rate Out Or Programmable Pulse Output
Configurable 1 kΩ or 50 Ω to ground Impedance: SNR: >20db Quantity: Connector: Female BNC Factory Configuration: Disabled XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 22: Pps - Pulse Per Second Output
IRIG-B 120 Many IRIG reader devices only decode the BCD time-of-year (TOY) portion of the IRIG frame. Reader devices designed to the IRIG-B122, B002, A132, A002 standard should be compatible with the XLi’s time code outputs. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev.
Page 23: Alarm Output
<control> 27 binary control characters, see Table 1 (reference IEEE1344) <binary seconds> binary seconds of day XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 24: Output
BNC female • Phasing: In phase with the XLi 1PPS ± 10 us Time Code Output IRIG-B000 w/ IEEE1344 The selectable Code output has an additional selection for IRIG-B-000 w/ IEEE1344, configuration is via the Keypad / Display, RS232/422 and the Network port via telnet and HTML.
Page 25: Output
BNC female • Phasing: In phase with the XLi 1PPS ± 200ns Time Code Input IRIG-B120 w/ IEEE1344 The selectable Code input has an additional selection for IRIG-B-127. Configuration is via the Keypad / Display, RS232/422 and the Network port via telnet and HTML.
Page 26: Input
The XLi remains synchronized (Locked) while the Time Quality control bits are 0000 through 0101 (ETE < 10uSec). The XLi utilizes the IRIG-B-120 BCD TOY, IEEE1344 year, leap second, and leap second pending bit as the UTC epoch. The XLi time format selection remains on the XLi including the Daylight saving time offset.
Page 27: Manual Leap Second Entry
Locked reference sources containing leap second data (GPS and IRIG-B w/ IEEE1344) take priority to the manual leap second entry. Manual leap second data is applied to the XLi UTC TOD when locked to any reference source that does not contain leap second data.
Page 28: Certifications
89/336/EEC EMC Directive 73/23/EEC Low Voltage Safety Directive IEC 60950 Safety of Information Technology Equipment (ITE) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 30: 3: Installation/Configuration
10 ft. (3.048 m). Notes: • The XLi requires a 12 Volt-compatible antenna. Antennas not rated for 12 V will be damaged. • Use a splitter to connect a GPS antenna to multiple receivers. Avoid using BNC “T” connectors.
Page 31: Connecting The Antenna To The Receiver
The antenna itself is mounted inside the top half of white antenna assembly. In the image above, this part has the Symmetricom logo on it and the dotted line with the TNC signal connector below it. The top half of the antenna housing is sealed and therefore weather-proof.
Page 32: Gps Signal Strength Requirements
For example, the Symmetricom GPS antenna provides approximately 41 dB of gain. If one subtracts the 16-21 dB loss of the 150 foot RG-59 coax antenna cable supplied by Symmetricom, the external gain reaching the ANTENNA connector is between 20 and 36 dB, which meets the requirement. Abide by the minimum input gain requirements when using other cable types and GPS antennas.
Page 33: Gps-Related Accessories
Use the in-line amplifier for cable runs of 150 to 300 feet (45 m to 90 m). Please contact a Symmetricom Sales Representative for information on how to extend the distance from the antenna to the receiver.
Page 34: Making Additional Connections
Ensure that a disconnect device, such as a switch, with the appropriate voltage/ current rating is provided when operating/installing the XLi. Connect the Power Supply it to a power source. The green STATUS light indicates that the XLi is receiving power.
Page 35: Configuring Network Settings
The following additional steps are required to make the XLi operational on a network. Make the XLi operational on a network if you plan on managing the XLi remotely over the network or distributing timing information from the XLi over the network...
Page 36 Local Time is UTC adjusted by the standard time zone offset and the daylight saving time adjustment (if in effect). XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 37: Using The Command Line Interface
Using the Command Line Interface The next two sections show how to connect to the XLi using the serial and network ports. Both the serial port and the network port give the user access to the XLi’s command line interface. While the keypad/ display interface provides a simple menu-driven user interface, the command line interface features: •...
Page 38: Connecting To The Network Port (Telnet)
• “F100 L/LOCK/UNLOCK – Remote Lockout” on page 124 Using the Web Interface The network port also provides remote access to the XLi’s web interface. To connect to the web interface: Use function F100 – Network Port Configuration & XLi Firmware (page 117)
Page 39: Installing Or Removing Option Cards
• Provides instructions for changing the settings, if needed. Note: Unless specified, the settings remain the same as those in the Standard XLi. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 40: Standard Xli
Standard XLi The standard XLi configuration comes with an AC Power supply and CPU module. The standard XLi does not require changes to its factory settings, which are as follows: Description Setting Function & Cross Reference “F110 – J1 Input (Time Code, TIET)” on...
Page 41: Xli With A Gps Reference
XLi with a GPS Reference This XLi configuration includes a GPS receiver factory configured as the primary reference source. Except for the following functions, the factory settings are the same as those for the Standard XLi: Description Setting Function & Cross Reference “F110 –...
Page 42: Installing The Expansion Module
To troubleshoot a problematic Antenna installation, recheck the physical location of the antenna, the cabling, and the configuration settings described in this manual. Rack Mounting the XLi The XLi comes with the following parts needed to mount the XLi securely in any EIA standard 19-inch (48.26-cm) rack: •...
Page 43 • Tighten the screws using a #2 size Phillips screwdriver. • Position the XLi in any EIA Standard 19-inch (48.26 cm) rack system, and line up holes in the brackets with the holes in the rack. • Secure the brackets to the rack using rack mount screws.
Page 44: 4: User Interfaces
Bay 7 Bay 3 Figure 6: Option bay positions as seen from the rear of the XLi 1 U and 2 U chassis. Alarm Status LED The Alarm Status LED, located on the front panel, displays the alarm-state of the XLi unit. The LED has...
Page 45: Keypad/Display Interface
“F3 – Time & Date” on page 50 • “F66 – Daylight Saving Time (DST) Mode” on page 84 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 46: Status Display
See “Time Display” on page 34. Menu Display To use the XLi functions that are available from the keypad, press the MENU button on the keypad. “Function Summary” on page 45 lists which functions are available from the Menu Display.
Page 47: Keypad Operation
Pressing the MENU key on the front of the XLi displays the first function, F1: TIME ZONE OFFSET: TIME ZONE OFFSET 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, F128 – Have Quick Output Configuration (page 165), and from there, decrements through the functions.
Page 48: Keypad Examples
Abandons all changes, exits the function, and displays the Time Display STATUS Abandons all changes, exits the function, and displays the Status Display XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 49: Command Line Interface
“guest”. The serial port’s command line interface does not require the user to log in. Operator Login The Operator has full privileges to change the settings in all the XLi’s functions and to perform firmware updates. As shipped, you can log in as Operator using:...
Page 50: Logging Out
Session Time-out and Priority The XLi’s system firmware closes inactive command line sessions on the network port after 15 minutes. The XLi does not terminate inactive command line sessions on the serial port.
Page 51: Web Interface
NOTICE: CANNOT RESPOND TO COMMAND BECAUSE UTILITY PORT SESSION HAS PRIORITY! Web Interface The web interface presents most of the XLi’s functions in a convenient and easy-to-use way. Figure 7. The web interface showing the XLi Admin Homepage User Privileges Administrative users can view status information and change the XLi’s configuration.
Page 52: Sessions
Logging In To log in, enter the IP address of the XLi’s “NET” network port into the web browser’s address field. At the XLi Home Page, click the Login button. Enter the appropriate user name and password and click the Login button with your mouse.
Page 53: Submitting Changes
152). Please note that whether the XLi is a 1U or a 2U high model, the web interface shows links for ten option bays in the left navigation bar. Only option bays with CPU-aware option cards will have active links.
Page 54 Parallel BCD mSec Output with Time Quality (87-8090) Parallel BCD uSec with Time Quality (87-8090-1) Parallel BCD mSec Output with Unlock Status (87-8090-2) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 56: 5: Function Reference
5: Function Reference Function Summary The following summary lists all the XLi functions, identifies the user interfaces from which each one is available, and provides a brief description of the function. Available from: K = keypad, N = Network Port (Telnet), S = Serial Port, W = Web...
Page 57 K,N,S,W Set the type of time (GPS, UTC, Standard, Local) displayed on the front panel of the XLi “F71 – Oscillator Statistics”, page 91 K,N,S,W Display the XLi oscillator’s phase, offset, drift, and DAC values “F72 – Fault Status”, page 92 K,N,S,W View clock and power supply fault status “F73 –...
Page 58 FTP server. b. The web interface makes it convenient to upgrade system firmware directly from the web browser. Symmetricom recommends this approach versus the serial/network command line method.
Page 59: F1 - Time Zone Offset
“F11 - Time Output Format” on page 59 • “F27 – FTM III Configuration” on page 63 Command Line To display the time zone offset, enter “F1<CR>” on the command line. The XLi responds with the following character string: F1<S><SIGN><HH>:<MM><CR><LF> where:...
Page 60: F2 - 12/24 Hour Format
The factory settings for F2 are 24-hour format for the display and 24-hour format for IRIG (F90) Command Line To display the current hour format, send: F2<CR> The XLi responds: F2<S>D<HH><SEP>I<HH><CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 61: F3 - Time & Date
07/14/2002 - 15:47:10 in F3 shows up on the front keypad display as UTC 198:10:47:10. TIME MODE in F3 defines only the entry of time in F3; it does not control the type of time displayed or output by the XLi.
Page 62 Avoid saving new F3 settings while the XLi is locked to a reference source and distributing time information. Doing so allows the XLi to distribute the potentially incorrect time set by F3 for up to 8 seconds until the XLi re-synchronizes to the reference source’s time. The XLi will make this switch to and from F3’s time without generating an alarm.
Page 63: F4 - Serial Port Configuration
01/01/2002 00:05:34<CR><LF> To set the time and date, send: F3 UTC 07/14/2002 18:20:30<CR> Only valid times and dates are accepted. The XLi responds: OK<CR><LF> F4 – Serial Port Configuration Use function F4 to change or display the serial port settings. The factory settings are: •...
Page 64: F5 - Time-Quality Setup
How time quality reporting works in the XLi: When a reference source becomes unavailable, the XLi uses its own oscillator to keep track of time. Without the reference source, the XLi can no longer adjust, or steer, the oscillator to remain synchronized with the reference source. The rate at which the oscillator counts time is slightly faster or slower than the reference source.
Page 65 The XLi estimates the time error based on the oscillator-type and on the degree of steering (DAC value) applied to the oscillator before the reference source became unavailable. As time error grows and exceeds the thresholds of each time-quality flag, the XLi generates a different time-quality indicator. The time-quality indicator is represented as a time quality character in the following text-based time outputs: •...
Page 66: F6 - Keypad Lock
F6 – Keypad Lock F6 – Keypad Lock enables or disables the keypad, preventing accidental changes to the XLi’s settings. When enabled, the display responds ‘KEYPAD LOCKOUT BY FUNC 6’ when the user attempts to access any function other than F6. F6 remains available through the keypad at all times. The factory setting for F6 –...
Page 67: F8 - Continuous Time Once-Per-Second
The command line (standard out) outputs the <CR> character at the end of the time-of-year string at the 1 PPS mark, +/- 1 millisecond. If F8 is used following startup, while the XLi is acquiring a reference source, F8's displays time-of-year information from the XLi's unsynchronized system clock. When the system clock acquires a reference source and synchronizes with it, F8 displays the new time-of-year information.
Page 68 In the first two lines above, the unsynchronized time is followed by a "?" time quality character. In this case, the "?" indicates that the XLi system clock is not locked to a reference source. As the XLi locks to the reference source, the "?"...
Page 69: F9 - Time On Request
Enter the command "F9<CR>" to prepare the XLi for the user's request. At the desired moment, send the request to the XLi by entering an upper case "T". The XLi saves the current time-of-day, accurate to within 1μS, to a buffer, and then outputs it to the command line interface. The XLi continues to provide the time-of-day each time it receives a "T"...
Page 70: F11 - Time Output Format
= Time error has exceeded time quality flag 4's threshold, or a reference source is unavailable For example, to prepare Time on Request, enter: F9<CR> Then, to request the current time, enter SHIFT-T on your keyboard. ("T" does not appear). XLi responds: <SOH>128:20:30:04.357*<CR><LF> To exit F9 press Ctrl-C on your keyboard.
Page 71 F11, with “DDD” suppressed, responds: F11 XDD:HH:MM:SS.mmmQ With “DDD” suppressed, the output of F8 would look like this example: :16:23:32* XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 72: F13 - Time Error
Time error begins to accumulate when the receiver loses lock to a reference source. The XLi calculates the worst-case time error based on the stability of system clock’s oscillator type, and the time elapsed since loss of lock.
Page 73: F18 - Software Version Request
For example, to display the time error, enter: F13<CR> XLi responds (example): F13 TIME ERROR -0.002932863<CR><LF> F18 – Software Version Request Use function F18 to display the current firmware version numbers of the firmware in the XLi: • Bootloader • Software (firmware) •...
Page 74: F27 - Ftm Iii Configuration
• Front Panel • Display Port • RS-422 Setup • Display Port • Data Addr Setup XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 75 Front Panel Display Setup Pressing ENTER at this display allows the user to select which data is to be displayed on the XLi’s front panel display. The three selections are Time and Frequency Deviation, System Frequency, and Local Time.
Page 76 " quotes are used to delimit character strings. The single ' and double " quotes are for text clarity and are not to be sent to the FTM F27. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 77 F27 B<N> <cr><lf> User formatted once-per-second output When the XLi receives the "F27 B<N> <cr><lf>" string, the FTM card begins sending user selected data at a once-per-second rate. The rising edge of the start bit of the last <CR> in the string is sent on time. If all information is enabled for transmission, the formatted string is as follows: DDD:HH:MM:SSQTsDS.thmFsU.thmSFDU.thmSTHH:MM:SS.thm<CR><LF>...
Page 78 Time Deviation is lost. Example sessions follow: Preset accumulated Time Deviation to -1.0 seconds. Enter: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 79 Local Time, and the complete FTM data string is transmitted back to the user. An example session follows: F27 B<N> TD<cr><lf> 069:15:25:27.545QT+00.477F-0.011SF+59.989ST15:25:28.022 069:15:25:31.932QT+00.477F-0.013SF+59.987ST15:25:32.409 069:15:25:32.524QT+00.476F-0.012SF+59.988ST15:25:33.000 OK<cr><lf> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 80: F42 - Multicode Output Configuration
Note, however, that F69 does not affect F42 or the Multicode Output card. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 81 For example, enter: F42<CR> The XLi responds that one board, board 2 in this case, is present: F42 B 2<CR><LF> Or, that multiple boards, boards 2 and 4 in this case, are present: F42 B 2 4<CR><LF>...
Page 82 F42 B1O 1<CR> Or, optionally: F42 B1 O1<CR> The XLi responds with the time code of the output: F42 B1 1 IRIG-B 120<CR><LF> If the time code is IRIG-A or IRIG-G, the response includes a parenthetical reminder that all outputs set to that time code (e.g., IRIG G) are also set to the same time code type (e.g., 141):...
Page 83 <N> = board number, 1 to 10. <S> = ASCII space character. = ASCII letter requesting Time Reference. The XLi responds with the Time Reference for the selected board. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 84: F44 - N.8 Frequency Synthesizer
(86-708-1) (page 174). The N.8 output frequencies range from 8 kPPS to 8192 kPPS. Command Line Use the following format to enter the F44 command. In response, the XLi displays the card addresses of the installed N8 cards: F44<CR> XLi responds with the card numbers in using the following format: F44<S><N><S><N><CR><LF>...
Page 85 To see the frequency settings of all port settings on a specific card, enter: F44 B3<CR> XLi responds (card #3 –- example settings): F44 B3 1 2048 2 1000 3 0512 4 0008<CR><LF> To display the frequency of a specific output ports (card #3, port #4), enter: F44 B3 4<CR>...
Page 86: F50 - Gps Receiver Lla/Xyz Position
Command Line Use the following format to display the current settings display the current position for the GPS receiver in LLA coordinates: F50<S>B<N><SEP>LLA<CR> XLi responds with the coordinate information in the following format: F50<S>B<N><SIGN><S><DEG>d<MIN>'<SEC>"<S><SIGN><S><DEG>d<MIN>'<SEC>"<S><ALT><UNITS><CR ><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev.
Page 87 F50 B2 N 38d23'51.3" W 122d42'53.2" 58m<CR><LF> To display the present antenna position using ECEF XYZ coordinates in meters, use the following format: F50<S>B<N><SEP>XYZ<CR> XLi responds using the following format: F50B<N><S><SIGN><S><MX>m<S><SIGN><S><MY>m<S><SIGN><MZ>m<CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 88: F51 - Gps Antenna Cable Delay
• For RG-58: multiply the cable length by 1.4 nS/ft. to get the value for F51. • Avoid using function F51 to adjust the XLi’s timing outputs; use F52 Distribution Cable Delay instead. Command Line Use the following format to display the current Antenna Cable Delay setting: F51<S>B<N><CR>...
Page 89: F52 - Distribution Cable Delay
Use function F52 to display or set the distribution cable delay for the time code and 1 PPS outputs. F52 compensates for the signal’s travel time from the XLi to its point of use. The distribution cable delay applies uniformly to all output ports. The as-shipped factory setting is +0 ns. The range of possible values is +999,999 ns to –999,999 ns.
Page 90 • RG-59 – approximately 1.24 ns/foot Command Line To display the current distribution cable delay, enter: F52<CR> The XLi responds using the following format: F52<SEP><SIGN><DELAY>ns<CR><LF> where: = ASCII character F (f or F for input string). = the function number.
Page 91: F53 - Gps Operation Mode
TRAIM is also supported in Time Mode only. Keypad While viewing the Status screen on the XLi front panel display, press the following keypad buttons: ENTER 53 ENTER If an GPS C/A Receiver (87-8028-2) is available, F53 displays:...
Page 92: F60 - Gps Receiver Satellite List
Use function F60 to display the identification number and signal strength of tracked or current satellites. ‘Tracked’ means a satellite’s signal is being received and interpreted by the receiver (or that the XLi has GPS data that suggests this satellite should be visible to the antenna).
Page 93 See “GPS Signal Strength Requirements” on page 21. If multiple GPS receivers are installed in the XLi, F60 identifies the GPS receiver by the option bay number in which it is located. For a diagram of option bay numbers, see “F118 –...
Page 94 Similarly, to display a list of the current or tracked satellites, enter: F60 B1 CURRENT<CR> F60 B1 TRACKED<CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 95: F66 - Daylight Saving Time (Dst) Mode
DST period span the New Year. Command Line To display the current status of F66, enter a command using the following format: F66<CR> XLi responds using the following format: F66<S><STATE><ENTER/EXIT><CR> where: = ASCII character F = function number = ASCII space character one or more.
Page 96 Meaning that Local time will enter DST on the last week of the month. All other parameters remain unchanged. The XLi automatically reboots when the user changes the DST entry/exit times in F66. If any of the items in an input string are invalid, an error message will be returned.
Page 97: F67 - Manual Leap Second Entry
F67 – Manual Leap Second Entry Use Serial/Network Function F67 to manually enable a leap second insertion into the XLi clock time structure. To request the present status of the manual leap seconds settings, send F67<CR> to the Serial/Network port. The port will respond with the ASCII character string: F67<SP><LS><SP><SELECT><SP><DATE><CR><LF>...
Page 98: Adding A Leap Second
To set the next leap second insertion time for subtracting a leap second, enter a continuous string of the form: F67 <SEP>SUB<SEP><MONTH><SEP><YEAR><CR> where: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 99: Setting The Manual Leap Second Function To No Event
The Serial/Network port will respond with the message “ERROR 03 BAD/MISSING FIELD” if the input string lacks a required field. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 100: F69 - Time Mode
Local Time modifies UTC time to include the Time Zone and Daylight Saving Time adjustments, if enabled by the user. Use the following format to display the time mode currently used: F69<CR> The XLi responds using the following format: F69<SEP><TT><CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 101 <CR> = Line feed character. <LF> For example, enter: F69<CR> XLi gives one of the following responses: F69 GPS <CR><LF> F69 UTC <CR><LF> F69 LOCAL <CR><LF> F69 STANDARD <CR><LF> To set the time mode, enter a command using the following format: F69<S><TT><CR>...
Page 102: F71 - Oscillator Statistics
Drift Rate of the oscillator. The oscillator DAC value is the signed 16-bit integer that controls the DAC output voltage. It ranges from 0 to 65536. Command Line To display the F71 settings, enter: F71<CR> XLi responds using the following format: F71<S>phase=<SIGN><MULT>E<SIGN><EXP><S>s<S><S>offset=<SIGN><MULT>E<SIGN><EXP><S><S>dr ift=<SIGN><MULT>E<SIGN><EXP>/DAY<S><S>DAC=<SIGN><INT><CR><LF> where: = ASCII string indicating function F71 = ASCII space character one or more.
Page 103: F72 - Fault Status
F73 Clock Status uses 150 nS when the reference source is GPS, and 15 uS when the refer- XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 104 For example, if the Time Threshold is set to 200 nS, all refer- ence sources will alarm when they exceed 200 nS. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 105: F73 - Alarm Control / Status
The following table summarizes F73’s alarm indicators and parameters, as well as the factory settings for an XLi without options. The factory settings vary depending on the options included at the XLi at the time it ships from the factory. For example, for an XLi with an optional GPS receiver, the GPS Primary Receiver indicator setting would be Alarm Enabled.
Page 106: Alarms - General Information
• The name of the indicator or setting • The factory default setting for an XLi with a single GPS receiver installed • The status reported by each indicator, or the range for each setting Table C: Indicators and Settings under function F73...
Page 107: Clock Status
XLi uses its internal oscillator to keep time until a reference becomes available again. Note: There are two uses of the word “unlocked” here: one refers to the XLi system clock when it doesn’t have a reference source, the other refers to the reference source (e.g., GPS, IRIG) when it doesn’t have a valid signal.
Page 108: Pll
Even though the Aux Ref input is a reference source, it is not treated as a Primary or Secondary ref- erence source by the XLi. If Aux Ref is available, the XLi clock uses it in place of its internal oscillator while no reference source is available.
Page 109: Irig
GPS satellites come in and out of view. As long as the Clock Status doesn’t alarm, these brief GPS faults will have little effect on the XLi clock and corresponding outputs. The person operating the XLi should characterize the frequency and duration of faults for a given installation, and should investigate and take action if the pattern of faults changes significantly or doesn’t meet requirements.
Page 110: Primary Power
+/-10% of nominal supply regulation. While the Primary Power indicator reports a fault, all outputs from the XLi are unreliable and should not be used unless a Secondary Power supply is available and operating normally.
Page 111: Dac
Status: OK or Fault The DAC indicator reports “OK” when the DAC that steers the XLi’s internal oscillator is operating nor- mally. The DAC indicator reports “Fault” when the DAC is operating at or near its limits. This can occur if the oscillator is near its aging rate, has been exposed to extreme temperatures, or if the reference source is intermittent, in error, or changes phase significantly.
Page 112: Alarm Led Blink
The operator may need to adjust this interval for options or operating conditions that require more time for the XLi to warm up after starting. Note that a system with a GPS reference will typically lock in less than 20 minutes.
Page 113: Clear Alarm Latch
To see the fault status of the alarm indicators, enter the following command: F73<CR> XLi replies: F73<S>S<STATUS><SOURCE><S><123456789ABCDEFGHIJ><CR><LF> where: = ASCII character F = ASCII character 7 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 114 'a' Clock Status has locked since power on but still within the user defined power on time out XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 115 The command line uses a ‘mask’ to enable or disable each indicator’s alarm. To see which indicators are Alarm Enabled, enter: F73<S>MASK<CR> XLi replies: F73<S>MASK<SEP>M<12346789ABCDEFGHIJ><CR><LF><LF> where: ‘E’ = enabled ‘D’ = Disabled XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 116 For example, to enter new mask settings, enter: F73 MASK DDE-EEEEEEEEEEDDDDD XLi replies: To verify the changes, enter: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 117 To enable LED Blink, enter: F73<S>BLINK<SEP> ENABLE<CR> XLi responds: OK<CR><LF> To disable LED Blink, enter: F73<S>BLINK<SEP> DISABLE<CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 118: F74 - Clock Source Control
While the reference source is unavailable the clock relies on a frequency source, such as its own oscillator or Aux Ref, to keep time. (If Aux Ref is available and enabled, the XLi will use Aux Ref as its frequency source.
Page 119 When a time reference becomes unavailable, the XLi switches to the other time reference, if available. The configuration of the time reference (e.g., Primary or Secondary) and the settings in F74 – Clock Source Control (page 107) determine if and how switching takes place. If no other time reference is available, the XLi will use an Aux Ref frequency input on J3 (“F113 –...
Page 120: F77 - Ptti Output Configuration
= line terminator; for output strings (a carriage return and line feed ) or for input strings (a carriage return only). The XLi Serial/Network port will respond with a two-line replay for status request similar to the following example: Sample request: F77 B2 S<CR><LF>...
Page 121 <LT> = line terminator; for output strings (a carriage return and line feed ) or for input strings (a carriage return only). Sample entry: F77 B2 TM LOCAL<CR> Response: OK<CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 122 = Option Bay Number, 1 through 10. = ASCII character to denote “Binary Coded Decimal” selection. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 123: F78 - Parallel Bcd Output Configuration
=line terminator; for output strings (a carriage return and line feed ) or for input strings (a carriage return only). The XLi Serial/Network port will respond with a two-line replay for status request similar to the following example: Sample request: F78 B2 S<CR><LF>...
Page 124 = function number. <SP> = ASCII space character. = ASCII character to denote Option Bay number follows XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 125 = line terminator; for output strings (a carriage return and line feed ) or for input strings (a carriage return only). Sample request: F78 B2 TEST<CR><LF> Response: F78 B2 TEST DISABLE <CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 126 The Serial/Network port will respond with the message “ERROR 04 BAD DATA / TIMEOUT CONDITION” if option card does not respond to the XLi fast enough. Re-enter the command to receive the data. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev.
Page 127: F90 - Code Output Configuration
F90 – Code Output Configuration Use function F90 to configure the time code output format (IRIG-A, IRIG-B, IRIG-B120 IEEE 1344 or NASA 36) and modulation type (AM or DC) on the XLi’s standard CODE output. The factory settings for F90 are IRIG-B and AM.
Page 128: F100 - Network Port Configuration & Xli Firmware
NTP & SNMP parameters, changing the user name/password, resetting the unit, and pinging other network devices. Warning: The F100 commands have the capacity to remove the XLi from the network and disable the XLi’s system firmware. Use judiciously.
Page 129 Reboot Warning: Saving changes to any F100 parameter using the keypad/display will reboot the XLi. Some of the F100 command line commands also reboot the XLi. These are identified in the following documentation. Group 1 You can use both the keypad/display and the command line interface to access the following parameters: •...
Page 130 Commit action Configure NTP & SNMP Parameters CONFIG Move files Factory Mode Jumper Display only Reboot K I L L Commit action – reboot the XLi Change User Password Configure Ping Commit action Change User Name Commit action You can reconfigure two or more network parameters in a single entry by sending the F100 command and entering new values.
Page 131: F100 Ea - Ethernet Address
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.
Page 132: F100 Sm - Subnet Mask
Use function F100 SM to display or configure the Subnet Mask. To set the Subnet Mask and restart the unit, enter: F100<S>SM<S><nnn.nnn.nnn.nnn><CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 133: F100 G - Gateway
Use function F100 G to display or configure the Default Gateway. To set the Default Gateway and restart the unit, enter: F100<S>G<S><nnn.nnn.nnn.nnn><CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 134: F100 Ic - Network Port Settings
CPU card (86-8000) running the current system software version, the user also has the option of XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 135: F100 L/Lock/Unlock - Remote Lockout
To lock the unit from a remote location, enter: F100 LOCK<CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 136: F100 L - Remote Lockout
To users on the serial port, XLi responds: OK<CR><LF> Or, to users on the network port, XLi gives the following response and then closes the port: GOODBYE.<CR><LF> To unlock remote lockout, use the command line interface on the serial port to enter: F100 UNLOCK<CR>...
Page 137: F100 St - Self Test Status
= space <S> = specify ST command <CR> = input line terminator The XLi responds: F100<S>ST<S>FLASH/CRC:<S><STATUS>,<S>RAM:<S><STATUS>,<S>SERIAL:<S><STATUS>, <S>NVRAM<S>VER:<S><STATUS><CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 138: F100 Bh - Burn Host
F100 BH – Burn Host Note: Symmetricom recommends using the web Interface (versus F100 commands) as the most conve- nient method for upgrading XLi firmware. Use function F100 BH, when upgrading firmware, to select the FTP host and the file to be transferred.
Page 139: F100 Bu - Burn
And, for example, displays the following text: >f100 bu BURNING FILE 192-8001.bin WITH SIZE 803016 TO PARTITION:1 SECTOR:10 SEC: 10 RE: 0 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 140: F100 Bf - Burn File System
SEC: 98 SEC: 99 SEC: 100 SEC: 101 SEC: 102 SEC: 125 FILE SYSTEM FLASH BURN COMPLETED XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 141: F100 Bufp - Burn Fpga Firmware
F100 BUFP<Enter> This command is only valid for XLi with an 86-8000 Rev. G or higher CPU board. If the CPU board is of the wrong version, an error message “ERROR: INVALID COMMAND!” will be displayed.
Page 142: F100 Config - Configure Ntp & Snmp
See “A: Using F100 Configuration” on page 235. • NTP is an optional feature. If purchased at the same time as the XLi, it comes enabled on the system. To purchase this option after you have purchased the XLi, contact Symmetricom Sales.
Page 143: F100 J - Factory Mode Jumper
CPU card, and is labelled “J3”. Units are shipped to the customer with no jumper installed. The jumper is used by Symmetricom technicians to test and configure the unit. With this jumper installed, the operation and integrity of the XLi are compromised.
Page 144: F100 K I L L - Reboot
In a network port session, rebooting the XLi terminates the network port session; open a new network port session when the XLi has finished rebooting. In a serial port session, the XLi displays text similar to the following example when the XLi has finished rebooting and is ready to receive additional commands: >SYSTEM POWER ON SELF TEST RESULTS:...
Page 145: F100 P - Change User Password
Valid password size is from no characters to 64 characters. If more than 64 characters are entered, F100 P truncates the string to 64 characters. When selecting a password, use appropriate levels password security for the XLi’s operating environment. Examples include: •...
Page 146: F100 Pi - Ping
The unit responds (example): PING 206.254.000.021: REMOTE HOST FOUND.<CR><LF> PING 206.254.000.021 : REMOTE HOST NOT FOUND.<CR><LF> To test if the XLi’s network port has a good connection, enter the following using in a serial port session: >f100 PI<CR> The XLi responds: PING : REMOTE HOST FOUND.<CR><LF>...
Page 147 F100 K I L L – Reboot command. • Immediately press the MENU key on the keypad and hold down while the XLi is rebooting. The XLi display will ‘hang’ while displaying “BOOTING”. • After a few moments, release the MENU key.
Page 148: F108 - Oscillator Configuration
F110 – J1 Input (Time Code, TIET) Note: Time Interval - Event Time (TIET) is an optional feature. If purchased at the same time as the XLi, it comes enabled on the system. To purchase this option after you have purchased the XLi, con- tact Symmetricom Sales.
Page 149 UTC in 24-hour format (e.g., it uses standard, local, or GPS time, or is in 12-hour format), the XLi’s internal clock will be set to the wrong time when it uses the time code reference, and its time outputs will be similarly affected.
Page 150 Ω = 100K, 50 (50 <Impedance> impedance is selectable with DC type only) Ω Note: If 50 impedance is specified with AM modulation format, XLi will overwrite the Ω Ω impedance input 50 with 100 k Ω = Code Type: AM, DC (AM type is selectable for 100 k <Type>...
Page 151 F110 IRIG B PRIMARY 50 DC NEGATIVE 66161 us SYNC GEN OFF<CR><LF> F110 TIET 50 POSITIVE<CR><LF> To set the J1 Input Configuration, make a command line entry using the same format as the XLi response above. Only valid values are accepted. For example: F110 IRIG A SECONDARY 50 DC POSITIVE 1234 US SYNC GEN 1 FRAME<CR>...
Page 152 F110 entry format to the Serial/Network port. Only valid values are accepted. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 153: F111 - J2 Output (Rate, Ppo)
Notes on F111 PPO: • PPO is an optional feature. If purchased at the same time as the XLi, it comes enabled on the system. To purchase this option after you have purchased the XLi, contact Symmetricom Sales. See “H: Sales and Customer Assistance” on page 295.
Page 154 CLR key to enter the “X” wildcards, if needed. Command Line Requesting the Current Configuration To request the J2 Output Configuration, enter the following: F111<CR> The XLi responds in the following format: F111<S><RATE><CR><LF> Or, if the PPO option is active, it responds: F111<S>PPO<S><START><S><STOP><CR><LF> Where:...
Page 155 'X' (or 'x') character is referred to as the “wildcard” in the PPO time fields. The most significant non- XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 156 μS - or 100ms pulse period with 50 μS pulse width), enter: F111 PPO XXX:XX:XX:XX.X00005 XXX:XX:XX:XX.X00055<CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 157: F113 - J3 Input (Aux Ref, Freq Meas)
To purchase this option after you have purchased the XLi, contact Symmetricom Sales. See “H: Sales and Customer Assistance” on page 295. Use function F113 to configure the J3 Input on the XLi back panel (section 3, Figure 5) for one of the following settings: •...
Page 158 For example, with a single GPS receiver card configured as PRIMARY in F119, and F74 Clock Reference set to PRI, When the XLi reacquires a time reference source and is steering its own internal oscillator, it stops using Aux Ref as its frequency reference.
Page 159 COUNT xxxxxxx configuration is selected, or another function performed. Command Line To display the J3 Input Configuration, enter: F113<CR> The XLi responds using the following formats: F113<S>DISABLE<CR><LF> F113<S>AUX REF<S><FREQ><S><IMP><CR><LF> Or, when the Frequency Measurement option is enabled: F113<S>FREQ MEAS<S><FREQ><S><IMP><S><INT><CR><LF> Where the F113 entry and request formats are defined as: = ASCII character F.
Page 160 Or, to enable Freq Meas of a 1 MHz input with a 50 Ω input impedance every 1 seconds, enter: F113 FREQ MEAS 1MHZ 50 1<CR> To all three of the above examples, the XLi responds: OK<CR><LF> If enabling Freq Meas, display the Freq Meas measurements using the following format: F113<S>SHOW<CR>...
Page 161: F116 - Display Brightness Level
F116 is available from the keypad/display only. It is not available using the command line inter- face. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 162: F117 - Factory Configuration
F117 – Factory Configuration Use function F117 to display the XLi factory Serial Number and the availability of optional software features. Send the string: F117<CR> XLi responds: F117<S>SN<S><SERIAL#><CR><LF> NTP <STATE><CR><LF> FREQ MEAS <STATE><CR><LF> TIET <STATE><CR><LF> PPO <STATE><CR><LF> where: = ASCII character F.
Page 163: F118 - Option Board Configuration
F118 – Option Board Configuration Use function F118 to query the XLi for the option bay location of CPU-aware cards. The following figure shows the position of the option bays as seen when viewing the XLi from the rear. Figure 8: Option Bay Positions...
Page 164 • Second Serial Talker or T1 / E1 (87-8047) Command Line To display a summary of the XLi option bay information, enter the following command: F118 The XLi responds: F118<S>B<N><S><OC><CR><LF> where: = ASCII character F. = function number. = ASCII space character one or more.
Page 165: F119 - Gps Receiver Configuration
Use function F119 to select a specific GPS receiver, display its status information, and configure it as a reference source. F119’s functions apply to all models of GPS receiver option cards available for the XLi. Where differences exist, this manual refers to the card by its name and part number.
Page 166 UTC leap-second offset. Once received, the UTC leap-second offset is saved. When the receiver has the UTC leap-second value, it starts providing valid time to the XLi system clock. When the system clock is locked to the GPS time reference and is operating within specifications, the system status is locked.
Page 167 GPS Antenna (Ok, Open, or Short) The GPS antenna is powered by 12 volts from the ANTENNA connector on the rear of the XLi. If this circuit is complete (e.g., connected to an antenna) GPS Antenna status is “OK”. If the circuit is incomplete (e.g., no antenna, a cable break, or a splitter) the GPS Antenna status is “Open”.
Page 168 To change the configuration of the GPS receiver as a primary or secondary reference source, enter: F119<S>B<N><S>C<S><CONFIG><CR> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 169: F120 - N.1 Frequency Synthesizer
OUTPUT PORT 4 (Enter a value from 1 Hz to 50,000,000 Hz) • SAVE CHANGES? (Select from YES or NO and press ENTER) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 170 = line terminator; for output strings (a carriage return and line feed) for input <LT> strings (a carriage return only) The XLi Serial/Network port responds with an eight line response similar to the following example: Sample request: F120 B2 S<CR><LF>...
Page 171 (sets board #1 channel #1 to 100000 MPPS, channel #2 to 2000 MPPS, channel #3 to 2048 MPPS, channel #4 to 16 MPPS). Response: OK<CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 172: F123 - Have Quick Input/1 Pps Sync Configuration
HAVE QUICK: The card gets major and minor time from the Have Quick time code input. • 1PPS: The card gets minor time from the 1PPS input. Major time is determined by the XLi. • HAVE QUICK 1PPS: The card gets major time from Have Quick time code input, and gets minor time from the 1PPS input.
Page 173 (a carriage return only). For example, enter: F123 B3 C The XLi responds, for example: F123 B3 PRIMARY 1PPS XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 174 (a carriage return only). For example, enter: F123 B3 C SEC HAVE QUICK 1PPS The XLi changes INPUT MODE to HAVE QUICK 1PPS, changes HQ TIME REFERENCE to SECONDARY, and responds: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 175: F126 - Options Key Entry
F126 – Options Key Entry Use function F126 to enter the Options Key, which enables certain functions (e.g., PPO, TIET, NTP, FREQ MEAS) if the correct key is entered. To check the status of these XLi options, see “F117 – Factory Configuration”...
Page 176: F128 - Have Quick Output Configuration
= line terminator; for output strings (a carriage return and line feed ) or for input strings (a carriage return only). The XLi Serial/Network port will respond with a four-line replay for status request similar to the following example: Sample request: F128 B2 S<CR><LF>...
Page 177 <LT> = line terminator; for output strings (a carriage return and line feed ) or for input strings (a carriage return only). Sample entry: F128 B2 TFOM ENABLE<CR> Response: OK<CR><LF> XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 178: 6: Option Cards
Parallel BCD uSec with Time Quality (87-8090-1) • Parallel BCD mSec Output with Unlock Status (87-8090-2) • PTTI BCD Output (87-8045) The following is a legacy option card for the XLi: • GPS Receiver (86-8013) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 179: Expansion Module (87-8034-1, 87-8034-2)
The Expansion Module is a versatile option that expands the number of standard time code and pulse rate outputs from the XLi. Four independent, user configurable outputs are provided. The output signals are selectable via an on-module rotary switch. Specify output signals configuration at time of order. A version of the module is also available supporting an alarm relay output.
Page 180: Optional Programmable Pulse
AM on the J4 output, move the plug from J4 DC to J4 AM. At this point the configuration procedure would be complete. Note the format of the time code is the same as selected for the standard XLi time code output (See Function F90).
Page 181 Note: PPO and Alarm are only available if those options have been purchased and are enabled using F126 – Options Key Entry (page 164). XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 182: Multicode Output (87-6002-Xl1)
Multicode cards that were not factory installed in the XLi require additional installation if there will be more than one Multicode or N.8 Frequency Synthesizer card in the XLi. Each card needs to have a unique card ID number. The card ID number is set by changing the SW2 DIP switch settings. The unique card ID number has no relation to the physical location of the card in the option bays.
Page 183: Adjusting Amplitude And Modulation Ratio
Remove the top lid of the XLi and retain the screws. Install the Multicode card in the XLi. Use a top slot so the output level and modulation ratio potentiometers are accessible by removing the top cover from the XLi chassis. See “Installing or Removing Option Cards”...
Page 184: Frequency Synthesizer (87-8022)
1 PPS to 50 MPPS, with a tuning resolution of 1 PPS. The N.1 module outputs are independently frequency locked to the XLi's internal oscillator. Therefore the N.1 outputs have the same frequency accuracy and long term stability of the XLi's internal oscillator.
Page 185: Frequency Synthesizer (86-708-1)
CPU-Aware Installation N.8 cards that were not factory installed in the XLi require additional installation if there will be more than one Multicode or N.8 Frequency Synthesizer card in the XLi. Each card needs to have a unique card ID number.
Page 186 Card ID # SW2-1 SW2-2 SW2-3 SW2-4 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 187: Low Phase Noise 5 Mhz Output (87-8009-5)
XLi's internal oscillator. This option requires an XLi with an upgraded oscillator (OCXO, High Stability OCXO, Rubidium, or High Stability Rubidium). This option can be added to the XLi in a “Plug-and-Play” manner, and operates without hardware or software configuration.
Page 188: Low Phase Noise 10 Mhz Output (87-8009-10)
XLi's internal oscillator. This option requires an XLi with an upgraded oscillator (OCXO, High Stability OCXO, Rubidium, or High Stability Rubidium). This option can be added to the XLi in a “Plug-and-Play” manner, and operates without hardware or software configuration.
Page 189: Specifications
1 VRMS into 50 Ω Sine Amplitude Sine Harmonic Distortion -30 dBc TTL into 50 Ω Square Wave Synchronization Phase locked to the XLi's internal 10 MHz oscillator Connector Female BNC CPU-Aware 5 MHz or MPPS Output: 1 VRMS into 50 Ω Sine Amplitude...
Page 190 Figure 10: To select an output type, place a jumper across the appropriate set of pins. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 191: Installation
Installation Installation requires inserting the 1, 5, 10 MHz/MPPS card into an empty option slot in the rear of the XLi Time and Frequency System. The card is supplied with mounting hardware. A Phillips screwdriver is the only equipment needed.
Page 192: No Output Or Outputs
ITU T G.704 standards for 12-Frame Multiframe (D4 or SuperFrame) and 24-Frame Multiframe (ESF or Extended SuperFrame). In addition, when the XLi is configured with an appropriate high stability oscillator option, it meets the requirements of ANSI T1.101-1994 and ITU-T G.811 for Primary Reference Clock operation.
Page 193: Specifications
Figure 12:). The factory settings are indicated in Figure 12: and in the subsequent configuration tables. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 194 T1 AIS Assertion and Output Signal Control on Major Fault Figure 13:S1 has eight dip switch positions. (Lettering inverted for this illustration.) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 195: Frame Format Selection
No AIS and leave outputs on: S1 Position 8 — ON (This is the factory setting) Figure 14:JP4, JP5, JP6, and JP7 (Positions numbered 1-6 for this illustration.) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 196: Output Signal Frequency Selection
However, the accuracy and stability of this card’s outputs are characteristic of the internal oscillator or Aux Ref to which they are phase locked. When the XLi is equipped with an optional OCXO or Rubidium oscillator, this card is capable of providing Telecommunications Stratum I, Primary Reference Source performance.
Page 197: Maintenance
The other broadcast byte provides direct indication of major and minor alarm status of the XLi. The logic in the FPGA combines the line fault signals and the broadcast byte inputs to form a summary major alarm indication. The FPGA uses the broadcast byte minor alarm information verbatim to control minor alarm indication.
Page 198: E1 Telecom Interface Output (87-6000E1-6)
Form-C Normally Open and Normally Closed con- tacts Interface Wire wrap pins Contacts Rated to 115 VAC/150 VDC at 2 A XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 199: Configuration
Figure 16:Jumper view of the E1 Output Card (87-6000E1-6) with S1 and JP1-7 circled. JP4-JP7 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 200 S1 Position 8 ON (Default) Figure 18:JP 4, JP5, JP6, and JP7 (Positions numbered 1-6 for this illustration.) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 201: Installation
J3 Aux Ref input. The accuracy and stability of this card’s outputs are characteristic of the internal oscillator or Aux Ref to which they are phase locked. When the XLi is equipped with an optional OCXO or Rubidium oscillator, this card is capable of providing Telecommunications Stratum I, Primary Reference Source performance.
Page 202: Alarm Operation
Introduction The optional GPS C/A Receiver acts as a Stratum 0 timing reference source to the XLi. It tracks up to 12 L1 GPS satellites, decodes their signals for time and position, and feeds this data to the XLi through the internal backplane.
Page 203: Specifications
The Frequency and Time Deviation Monitor (FTM) option is specifically designed for power utilities to monitor power line stability. When installed in a Symmetricom XLi, this option samples one phase of the 50 Hz or 60 Hz frequency supplied from the user's power line and provides frequency and time information.
Page 204 FTM frequency and time measurements are referenced to UTC when XLi is locked to GPS. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 205: Specifications
System Frequency Range: 40 - 70 Hz Accuracy: 1 mHz Resolution: 30 μHz Measurement Display 1 mHz XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 206: Installation
CPU-Aware: No Installation No installation is required when the FTM is factory installed in the XLi. The following installation instructions apply only to an FTM card installed by the customer later on. Supplied with the purchase of a separate FTM card: XLi Time &...
Page 207: Operation
After the XLi has locked to its timing reference source and is in specification, enter a value of zero (0) for Time Deviation Preset to remove the time deviation accumulated during synchronization to the XLi's timing reference source.
Page 208: Configuration
The following is a list of features that can be configured by the user. “Keypad” indicates the parameter can be set from the XLi's front panel keypad using F27. “Command Line” indicates the parameter may be set from the XLi's serial or network port using F27.
Page 209: Maintenance And Troubleshooting
Unscrew the securing screws and remove the lid of the XLi. • Use static sensitive component handling procedures when handling the FTM PCB. • Install the FTM card board back into the XLi and replace the four rear panel retaining screws. • Replace the XLi lid and retaining screws. •...
Page 210: Parallel Bcd Msec Output With Time Quality (87-8090)
Not used 8’s of min 200’s of days 4’s of min 100’s of days 2’s of min XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 211 TIME QUALITY INDICATORS The XLi provides an estimate of the worst-case error based on the user-entered Time Quality Flags. This is indicated by each of the four time quality lines changing to the high state in turn as the worst-case error exceeds the threshold for that line.
Page 212: Parallel Bcd Usec With Time Quality (87-8090-1)
54 lines representing 100's of days to units of microseconds, four time quality lines that provide an XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 213 80’s of days 1’s of min 40’s of days 40’s of sec 20’s of days 20’s of sec XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 214 2's of usec 4's of usec 8's of usec 10's of usec 20's of usec 40's of usec XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 215 TIME QUALITY INDICATORS The XLi provides an estimate of the worst-case error based on the user-entered Time Quality Flags. This is indicated by each of the four time quality lines changing to the high state in turn as the worst-case error exceeds the threshold for that line.
Page 216: Parallel Bcd Msec Output With Unlock Status (87-8090-2)
This Parallel BCD module provides provides 42 lines of parallel BCD time data representing 100's of days to units of milliseconds, two data valid strobes, and an unlock line Unlock which indicates when the XLi is unlocked from the selected reference source. OUTPUT Day of year, hours, minutes, seconds, and milliseconds.
Page 217 1’s of min 80’s of msec Ground 1’s of days 2’s of min 100’s of msec XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 218: Ptti Bcd Output (87-8045)
3------RX+ (Code in Plus - for test purposes only) 4------RX- (Code in Minus - for test purposes only) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 219 4’s of hours 2’s of hours 1’s of hours 80’s of min 40’s of min 20’s of min XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 220 TFOM 2, High (1) if Abbreviated TFOM 1, High (1) if Abbreviated 40-49 800-980 Unused, High (1) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 221: Ptti 10V 1Pps And 1Ppm Output
20uSec ± 1uSec Rise Time: <20nSec Fall Time: <1uSec Phasing: In phase with the XLi 1PPS ± 100ns Qty:2 Connector: BNC female 1PPM TIME SYNCHRONIZATION SIGNAL: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 222 20uSec ± 1uSec Rise Time: <20nSec Fall Time: <1uSec Connector: BNC female Physical: Double high option bay. CPU-Aware: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 223: Second Serial Talker Or T1 / E1 (87-8047)
Serial Talker, E1 or T1 mode selection T1 OUTPUT When configured for T1 or E1 outputs, and XLi or XLi SAASM is configured with an appropriate high stability oscillator option (OCXO, high stability OCXO, Rubidium and High Stability Rubidium) and locked to a GPS reference (or equivalent), the requirements of ANSI T1.101-1994 and ITU-T G.811 pertaining...
Page 224 3------N/C (used for Second Serial Talker only) 4------T1 Out 3 + (RS-422 Levels) 5------GND 6------T1 Out 4 - (RS-422 Levels) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 225 6------E1 Out 2 - (RS-422 Levels) 7------E1 Out 2 + (RS-422 Levels) 8------E1 Out 1 – (RS-422 Levels) 9------TST_T1 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 226 8------E1 Out 3 – (RS-422 Levels) 9------TST_E1 SERIAL TALKER PORT Serial talker port is a re-broadcast of the standard XLi serial port. It provides two RS-232 and four RS- 422 serial transmit ports on two 9-pin D connectors. Interface: Balanced RS-422 and RS-232...
Page 227: Havequick/1 Pps Time And Frequency Reference(87-8016-3)
9------TST_E1 HaveQuick/1 PPS Time and Frequency Reference(87-8016-3) The Have Quick/1PPS 87-8016-3 option card is a reference source input card for synchronizing the XLi. It can be configured to use incoming Have Quick time code and 1 PPS pulse as follows: •...
Page 228: Have Quick Input Specifications
The modified Hamming code employs 4 parity bits and 4 data bits for each 8 bit character. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 229 10mS or fault) the Have Quick time and frequency reference reads the code unlocks. Refer to ICD-GPS-060 Rev A section 4.4.5 for the Have Quick interface requirements. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 230: Have Quick Output With Selectable Tfom (87-8016-6)
Have Quick Output Specifications Frame rate: 1 Hz Accuracy: 1 µS Stability: Stability is determined by the XLi’s oscillator specifications Level: 5V CMOS Logic Qty: Have Quick Signal Characteristics The Have Quick Out signal employs bi-phase (Manchester II) transmission at approximately 1667 bits per second.
Page 231 The Time Figure of Merit TFOM denotes the time quality of the incoming Have Quick code. While the Xli is locked all bits are high (indicating no information), no fault is reported. When the time error in the Xli exceeds 10mSec the bits are set to an integer value of 9 (indicating time error of 10mS or fault). Other equipment such as the Xli with Have Quick input will read the TFOM and unlock.
Page 232: Enhanced Low Phase Noise Module (87-8040)
Enhanced Low Phase Noise Module (87-8040) This option provides four Low Noise 10MHz frequency output signals with the capacity to install two cards into one XLi chassis. The option is only available with the optional OCXO, High Stab OCXO, Rubidium, and High Stability Rubidium oscillators.
Page 233: Legacy Option Cards
Introduction The optional GPS Receiver card acts as a Stratum 0 timing reference source to the XLi. It tracks up to 12 L1 GPS satellites, decodes their signals for time and position, and feeds this data to the XLi through the internal backplane.
Page 234: P7: Oscillators
P7: Oscillators The XLi comes with the standard TCVCXO oscillator described below. The following optional oscillators are available as upgrades: • OCXO Oscillator • High Stability OCXO Oscillator • Rubidium Oscillator • High Performance Rubidium Oscillator The stability of the following oscillators is dependent on the reference source. For reference source accuracies, see “System Time &...
Page 235: Rubidium Oscillator Upgrade
, over 0°C to 50°C when not locked to a reference Drift Rate 1 x 10 / month XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 236: 8: Power Supplies
An optional DC power supply can be used in place of the standard AC power supply. It can also be used in conjunction with an AC power supply for redundancy. In that scenario, the XLi uses the power supply with the highest voltage as the primary source of power, and switches to the alternate power supply as needed.
Page 237: Vdc Power Input Option (87-8012-24)
Isolation: Input to output: 500 VAC minimum Fan: Exhaust 3-6CFM XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 238: 9: Software Options
If needed, use the XLi’s F4 Serial Port Configuration or F100 Network Port Configuration. If needed, use the RS-232 or TCP/IP buttons to configure TimeMonitor XLi Measurement. In TimeMonitor XLi Measurement, check that the settings for Setup match the inputs to the XLi (see Figure 19).
Page 239: Other Features
The results of the command are displayed in the Response field. • To open a terminal session with the XLi and type commands to the XLi command line, select the Terminal radio button, and enter commands directly in the Response field. Consult Chapter 5: Function Reference (page 45) for the specific syntax of each command.
Page 240 To display the complete GPS information, select the option bay location of the GPS receiver using the pull-down menu, and then click the GPS button. This displays the following window: Please consult the Symmetricom TimeMonitor documentation or online help for additional information. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev.
Page 241 This page intentionally left blank. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 242: 10: Xli-Generated Messages
Recovery Action: Consult the manual for the correct command and re-enter. ERROR: Can’t create netdevice <NAME> The XLi can not create the device needed to map the host to a drive. Recovery Action: Restart the Unit. If this error message persists, contact Symmetricom Technical Customer Service.
Page 243 Recovery Action: Verify correct parameter values. If correct, restart the XLi. If this error message persists, contact Symmetricom Technical Customer Service. ERROR: Action (get or set) is not specified You have omitted the “get” or “set” parameter from the F100 NTP Configuration command.
Page 244: Informational Messages
Information was successfully transferred to the destination file. Restarting the Unit Please wait… A command has just been executed that requires a soft restart of the XLi. The restart happens immediately after this message is sent. Command accepted and processed as specified.
Page 245 This page was intentionally left blank. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 246: A: Using F100 Configuration
F100 CONFIG instructs the XLi 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 XLi using the F100 CONFIG command.
Page 247: Copy The Configuration Files To The Ftp Server
Copy the Configuration Files to the FTP Server Telnet to the XLi or open a terminal session to it over the serial port. Using the command line, enter the commands below. Replace <IP Address> with that of the workstation/FTP Server. Leave <subdir> blank - the FTP server will save the files in anonymous’s home directory.
Page 248: Move The Configuration Files Back To The Xli
• The configuration files are automatically transferred to/from the FTP server in binary format. They retain the DOS or UNIX file conventions of the editor. XLi works with either format. Move the Configuration Files Back to the XLi Reboot Warning: The following steps cause the XLi to reboot.
Page 249 This page intentionally left blank XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 250: B: Upgrading System Firmware
FTP server and burning the software to system memory. The XLi gives the FTP server ‘Anonymous’ as its user name, and uses a null password (e.g., the equivalent of pressing the Enter key on your keyboard instead of entering text). The FTP server must be configured as follows: •...
Page 251: Open A Command Line Session On The Xli
Open a Command Line Session on the XLi Note: The XLi and FTP server need to be connected by a TCP/IP network. Ideally they should be on an isolated subnet. Connecting them over a network with multiple ‘hops’ or one with heavy network traffic raises the possibility that the system software files could be corrupted, yielding the XLi inoperable.
Page 252 XLi responds: BURN HOST IS READY<CR><LF> Then ‘burn’ the bootloader to the XLi’s flash memory by entering: F100 bub The XLi responds: 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...
Page 253 The “K I L L” command reboots your unit. You have completed the firmware upgrade procedure XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 254: Troubleshooting
‘Can’t open file’ errors - see the preceding message. Message: Unit hangs on “Burning Boot” message. Check that your IP Address, Subnet Mask, and Default Gateway of the XLi are correctly configured. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H...
Page 255: Faq
F100 IP:192.168.47.156 SM:255.255.255.0 G:192.168.47.1 Is the null modem cable necessary? What if I’m upgrading a XLi remotely? The null-modem cable is optional. If you decide to Telnet to the XLi over TCP/IP network, the null modem cable isn’t needed. I’m using a null modem cable to connect to the XLi from my laptop and the XLi keeps rebooting? An ungrounded voltage level on one of the pins in the null modem cable causes the unit to reset.
Page 256: C: Snmp
"0302270000Z" ORGANIZATION "SYMMETRICOM" CONTACT-INFO "Technical Support" DESCRIPTION "Symmetricom, Test Timing and Measurement Enterprise MIB" ::= { symmetricomTtmEnt 0 } symmetricomTtmEnt OBJECT IDENTIFIER ::= { enterprises 1896 } trapMsg OBJECT IDENTIFIER ::= { symmetricomTtmEnt 1 } OBJECT IDENTIFIER ::= { symmetricomTtmEnt 2 }...
Page 257 ::= { trapMsg 7 } XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 258 ::= { ntp 5 } ntpEstErr OBJECT-TYPE SYNTAX INTEGER (0..2147483647) MAX-ACCESS read-only STATUS deprecated DESCRIPTION XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 259 2^6 or 64 seconds. Note: a primary time server's outgoing NTP packet will have its poll field set to ntpSysPoll. Note: this field is equal XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 260 While not enumerated as part of the NTP specification, the following are suggested ASCII identifiers: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 261 This flag equals 1 when GPS is used as the time synchronization source and 0 for all other sources. " ::= { gps 1 } XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 262 100 meters different from actual sea level." XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 263 300 baud yields the best time accuracy." ::= { acts 2 } XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 264 "Number of times the time server called the ACTS dial-up service and something was not right. This variable is the sum total of all XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 265 "The syntax of the reply from remote modem was incorrect, possibly due to line noise." ::= { acts 14 } XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 266: Xlimaincard-Smiv2.Mib
MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of NTP packets rejected for any reason by NTP XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 267 "This is a status code indicating: 1- normal operation, 2- a leap second to be inserted in the last minute of the current day, 3- a leap XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 268 ::= { ntp 10 } ntpSysPrecision OBJECT-TYPE SYNTAX INTEGER (-127..127) MAX-ACCESS read-only XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 269 NIST public modem TSP time protocol Digital Time Service ATOM Atomic clock (calibrated) VLF radio (OMEGA, etc.) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 270: Xli-Smiv2.Mib
ACTS telephone modem dial-up IRIG Inter-Range Instrumentation Group signal Note, for Symmetricom time servers only GPS, ACTS, and IRIG are presently used. Further, a primary time server's outgoing NTP packet will have its reference identifier field set to ntpSysRefClockIdent." ::= { ntp 14 } xli-SMIv2.mib...
Page 271 DESCRIPTION "The time, in UTC, at which the trap was generated." ::= { systemAlarmData 2 } XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 272 SYNTAX DisplayString (SIZE (0..255)) MAX-ACCESS accessible-for-notify STATUS current DESCRIPTION "A description of the the XLi system at the time the alarm was triggered. The format matches the output of the F73 command." ::= { systemAlarmData 4 } alarmSystemNotification NOTIFICATION-TYPE OBJECTS...
Page 273 ::= { systemFaultConfigMasks 4 } maskIrig OBJECT-TYPE SYNTAX FaultMaskType MAX-ACCESS read-write STATUS current XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 274 ::= { systemFaultConfigMasks 10 } maskFirstTimeLock OBJECT-TYPE SYNTAX FaultMaskType MAX-ACCESS read-write STATUS current XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 275 ::= { systemFaultHistory 2 } faultPrimaryRefClkOBJECT-TYPE SYNTAX Boolean MAX-ACCESS read-only STATUS current DESCRIPTION XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 276 ::= { systemFaultHistory 8 } faultRbOsc OBJECT-TYPE SYNTAX Boolean MAX-ACCESS read-only STATUS current DESCRIPTION XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 277 "TRUE, if NTP was in an alarm since the fault latch was cleared." ::= { systemFaultHistory 14 } statusClock OBJECT-TYPE SYNTAX INTEGER { locked(1), unlocked(2) MAX-ACCESS read-only XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 278 SYNTAX DisplayString (SIZE (0..255)) MAX-ACCESS read-only STATUS current DESCRIPTION "Describes the XLi system at the time the alarm was triggered. The format matches the output of the F73 command." ::= { systemStatusGeneral 3 } statusPllSynthesizerOBJECT-TYPE SYNTAX INTEGER { unlocked(1),...
Page 279 STATUS current DESCRIPTION "Gives the current status of the primary power." ::= { systemStatusDetail 7 } XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 280 (3)- indicates the clock has not locked since power on." ::= { systemStatusDetail 11 } statusTimeError OBJECT-TYPE SYNTAX INTEGER { (1), fault XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 281: Editing Snmp.conf
NAME= appearing as a single line in the text file: MIB=/config/ttmib.o, GenTraps=YES, NAME=public,VIND=1,TRAP=YES,ACCESS=R,IP=010.001.007.065,IP=000.0 00.001.000,IP=000.000.000.000,IP=000.000.000.000,ENDC, NAME=private,VIND=1,TRAP=YES,ACCESS=W,IP=010.001.007.065,IP=000. 000.000.000,IP=000.000.000.000,IP=000.000.000.000,ENDC, NAME=,VIND=0,TRAP=NO,ACCESS=R,IP=000.000.000.000,IP=000.000.000. 000,IP=000.000.000.000,IP=000.000.000.000,ENDC, [etc...] NAME=,VIND=0,TRAP=NO,ACCESS=R,IP=000.000.000.000,IP=000.000.000. 000,IP=000.000.000.000,IP=000.000.000.000,ENDC, XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 282: Snmp Private Enterprise Mib Structure
= 5 For the XLi, groups 1, 2, 3, 4 and 5 have been deprecated and a new group 6, products, has been added. For the XLi and future Symmetricom products, groups 1 through 5 will be absent from the XLi Enterprise MIB definition supplied with the unit.
Page 283 History The level under the xli group is divided into four groups; the first two of which will be explained later. The optionCardGroup has all the available option cards under it. Under each option card is a table for that option card type because there may be multiple cards of that type within an XLi chassis.
Page 284: Xli System Group
XLi System Group The XLI system group contains the xliFault and the xliStatus groups. These groups contain information describing the operation of the XLI system as a whole. The xliFault group contains information concerning system faults that have occurred, as well as configuration parameters for the generation of system alarms, called traps in SNMP, resulting from those faults.
Page 285: The Xli Fault Group
= 10 maskFirstTimeLock = 11 maskTimeError = 12 maskTimeout = 13 maskNtp = 14 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 286: The Xli System Status Group
= 13 statusNtp = 14 The XLI systemStatus group is used to provide a current operational view of the system. The systemStatusGeneralGroup gives on overview of the system status, including the status of the clock and XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev.
Page 287: Xli Maincard Group
All traps for the XLi product are defined under Truetime.products.xli.xliTraps. This is required to maintain compatibility with MIBS defined using the Structure of Management Information version 1 definitions. The XLi SNMP agent will send SNMP version 1 traps. This is done to maintain compatibility with SNMPv1 managers.
Page 288: Glossary Of Snmp-Related Terms
Making additions to the XLi product MIB is also a straightforward task with several caveats. The first is that additions may be made but the object identifier and the semantics of existing objects may not be altered.
Page 289: Configuring And Testing Snmp
The message is intended to relay and important even that occurred within the agent that requires attention or notification. Configuring and Testing SNMP This section outlines the procedure to perform verification tests on the SNMP component of the XLi product. Materials Needed •...
Page 290 “systemStatusGeneral”. Do this by clicking on the first item and then holding the “shift” key while clicking on the last item. Then click the “Add” button. Back up to “xli -> xliSystem -> systemStatus - > systemStatusDetail”. Select all items under “systemStatusDetail” and then click the “Add” button.
Page 291: Xli Configuration
“private” and the “Retries” field to 0. XLi Configuration SNMP Configuration Follow the manual to load the snmp.conf configuration file into the XLi. The IP address of the HP OpenView PC must be in both the public and private communities. Test Procedure Testing “Get”...
Page 292 Verify that a popup appears saying “Set has completed successfully”. Select the menu item “XLi->Configuration”. In the popup “xliconfig” verify that the “maskPllSynthe- sizer” entry is set to “disabled”. In the “Browse MIB” popup select the “maskPllSynthesizer” entry. In the “MIB Instance” field type 0.
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Page 294: D: Network Time Protocol (Ntp)
NTP Packet Transmitted Timestamp Accuracy ±10 milliseconds Leap Indicator After the XLi has entered a holdover state (“flywheeling” on its internal oscillator or Aux Ref while a time reference is absent) for "n" hours, the Leap Indicator transitions to "11" and the Stratum Level stays at "1".
Page 295: Editing Md5 Keys On The Ntp Server
“M” specifies MD5 authentication, the only type available • “truetime” and “TTXli” are the arbitrarily chosen keys XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 296: Editing Md5 Keys On The Ntp Client
Important lines in the ntp.conf file of the ntp client (not server) are: trusted key If you do not use MD5 authentication, remove # from “#disable auth”. XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 298: E: Time Code Formats
(BCD) notation. The second segment encodes control functions. This segment is generally available for data of the user's choice. In the IRIG-B code output of Model XLi, this segment encodes worst case time error flags as explained below. The IRIG-A output from Model XLi does not include control functions.
Page 299: Irig-B Time Quality Flags
Five flags are encoded in the control function segment of the IRIG-B code. The first flag encoded at element P5+40ms is the LOCK indicator. It is a binary 1 when the XLi is not locked to a reference. The second flag encoded at element P5+60ms is a binary 1 when the worst case time error exceeds threshold 1 (refer to "Function 5 -- Time Quality Enable/Setup").
Page 300: Nasa 36
A reference marker locates the beginning of each frame. XLi NASA 36 Time Code Input/Output The XLi generates and decodes the following NASA 36 time codes: NASA 36 (AM):1 kHz sine wave amplitude modulated BCD NASA 36 (DC):DC level shift, pulse width coded BCD XLi Time &...
Page 301 Figure 20:IRIG Standard Format A XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 302: F: World Map Of Time Zones
F: World Map of Time Zones: XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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Page 304: G: Part Numbers
G: Part Numbers Standard Chassis • Model XLi 1U Chassis w. Main CPU Card 1510-602 • Model XLi 2U Chassis w. Main CPU Card 1510-652 Non Plug-in Options • OCXO Oscillator 87-399-18 • High Stability 10 MHz OCXO Oscillator 87-399-19 •...
Page 305 2 mounting brackets for 1 U chassis 206-800 • 4 flat-head, Phillips screws 241-008-005 Antenna L1 Antenna +12V W/50’ RG59 cable 142-614-50 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 306: H: Sales And Customer Assistance
H: Sales and Customer Assistance Symmetricom's Customer Assistance Centers are a centralized resource to handle all of your customer needs. Customer Assistance Center Telephone Numbers: • Worldwide (Main Number): 1-408-428-7907 • USA, Canada, Latin America including Caribbean, Pacific Rim including Asia, Australia and New Zealand: 1-408-428-7907 •...
Page 307 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 308: Index
..........293 87-8047 XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 309 ......... .154 GPS Receiver Have Quick Configuration XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 310 ......... 24, 48 F1 – Time Zone XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 311 ......117 F100 – Network Port & XLi Software .......123 F100 BASET –...
Page 312 ... . 219 Have Quick Output with selectable TFOM (87-8016-6) XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 313 ......... .278 Materials Needed XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 314 ........223 OCXO Upgrade XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 315 ....... .131, 235 Configure Parameters XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 316 ..........9 Time Interval XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 317 ..........75 XYZ coordinates XLi Time & Frequency System XLi-man, Issue 8, 6/17/2008, Rev. H Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
Page 318 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment SERVICE CENTER REPAIRS WE BUY USED EQUIPMENT • FAST SHIPPING AND DELIVERY Experienced engineers and technicians on staff Sell your excess, underutilized, and idle used equipment at our full-service, in-house repair center We also offer credit for buy-backs and trade-ins •...

Symmetricom XLi User Manual

1 : Equipment Overview

2 : System Specifications

3 : Installation/Configuration

4 : User Interfaces

5 : Function Reference

6 : Option Cards

P7: Oscillators

8 : Power Supplies

9 : Software Options

10 : Xli-Generated Messages

A: Using F100 Configuration

B: Upgrading System Firmware

C: Snmp

Quick Links

Troubleshooting

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Summary of Contents for Symmetricom XLi