DATA SHEET XLi Time and Frequency System Time and Frequency System The modular ultra precision XLi Time and The XLi seemlessly integrates into a Frequency System is the most versatile network centric environment. The 10/100 Key Features and flexible solution for timing and Base-T interface is standard. Remote • 12 channel GPS receiver with TRAIM synchronization requirements. The XLi is management is facilitated with the intuitive • Better than 30 nanoseconds RMS accuracy to UTC completely modular with a variety of option HTML web based interface as well as • Better than 1x10-12 frequency cards that are easily configured by the user. SNMP with an enterprise MIB. Command accuracy The wide range of option cards make it line interface is also supported via Telnet • Supports primary and secondary easy to tailor your system to support nearly or the RS-232/422 serial port. The XLi can reference inputs (GPS, time code, every possible output/input needed for time function as a Stratum 1 NTP server with 1PPS) and frequency applications, by combining addition of the NTS option. • Configurable with dual redundant GPS receivers in one chassis up to ten option modules (2U chassis), • Standard 10/100 Base-T network port The standard XLi provides a wide range oscillator upgrades, and two GPS receivers • HTTP, Telnet, SNMP with MIB standard of time and frequency inputs and outputs per unit. • Vacuum fluorescent display such as: 1PPS output; time code input/ and keypad Configuration recognition software output (IRIG A, B; IEEE 1344; NASA36) in • Time code reader/generator (IRIG A,B; automatically detects the unit’s setup, both modulated (AM) and demodulated IEEE 1344; NASA 36) AM and DC without modifications to the operating (DCLS) formats; programmable pulse • Auxiliary reference input supports system, providing “plug-and-play” rates; open collector alarm; front panel lock to external cesium to enhance holdover configuration capability for current and keypad and display; and more. • Standard outputs: 1PPS, selectable future application needs. Modularity pulse rates and alarm The modular XLi architecture allows easy delivers the freedom to configure the XLi extension of the software and hardware in as a GPS timing instrument, or a time code Key Benefits ® the field. Software updates are remotely unit (TCU). Deploy the Symmetricom GPS • Intuitive web based management administered. Existing and future hardware technology to generate ultra high precision • Completely modular with plug-and option modules can be added as needed by play capability time and frequency outputs for a wide • Numerous field-upgradeable, plug-in the user. range of synchronization requirements, or option cards available leverage Symmetricom’s years of expertise • Flash memory for remote software in Time Code technology, which is built into upgrades the heart of the XLi system. Page 1 of 13 DDAATTAA SHEET SHEET XLi XLi GPS RECEIVER (OPTIONAL) MECHANICAL/ENVIRONMENTAL • Receiver input: 1575.42 MHz L1 C/A code. Coarse acquisition • Time and frequency system Position accuracy: typical 10 m RMS tracking Power: Voltage: 90–260 Vac 4 satellites. Frequency: 47–440 Hz • Tracking: 12 parallel channels. Multi satellite ensembling Connector: IEC 320 with TRAIM. Size: 1U: 1.75” x 17.1” x 15.35” • Acquisition time: Cold start <20 min. (typical) (4.44 cm x 43.4 cm x 38.9 cm) 2U: 3.5” x 17.1”x 15.35” • 1PPS output accuracy: UTC(USNO): ±30 nS RMS 100 ns peak (8.89cm x 43.4cm x 38.9cm) -12 • Frequency output accuracy: 1 x 10 @ 1 day Standard 19" (48.26 cm) EIA rack system, hardware • Frequency/timing Allan included. -9 Deviation stability (TCXO): 1 x 10 @ 1 sec Operating temperature: 0°C to +50°C (+32°F to +122°F) -10 3 x 10 @ 10 sec -10 Storage temperature: –55°C to +85°C (–67°F to +185°F) 3 x 10 @ 100 sec -10 2 x 10 @ 1000 sec Humidity: 95%, non-condensing -12 1 x 10 @ 1 day Display: Graphics (160 X 16) vacuum fluorescent display. • Stability when not One line for time and day of year (TOD). Two-line -7 alpha-numeric display for status messages and tracking satellites (TCXO): 5 x 10 ( 0°C to 50°C) typical user input. Keypad: numeric 0–9, left, right, up, down, CLR, TIME CODE UNIT (TCU) SYNC GENERATOR Enter, time key, status key and menu key. • Sync code: IRIG A,B; IEEE 1344; NASA 36 • Antenna • Code out: IRIG A,B; IEEE 1344; NASA 36 Size: 3” Dia. x 3” H (7.62 cm x 7.62 cm) Input: BNC female to GPS receiver. TNC on antenna OSCILLATOR Power: +12 Vdc • Standard oscillator: VCTCXO Operating temperature: –55°C to +85°C (–67°F to +185°F) • Optional oscillators: OCXO, high stability OCXO, Rubidium, and high stability Rubidium. Storage temperature: –55°C to +85°C (–67°F to +185°F) Humidity: 95%, non-condensing STANDARD INPUT/OUTPUT SIGNALS Certification: UL, FCC, CE, and C-UL • Eight standard I/Os Two for control and OPTIONS monitoring: Serial and Ethernet port. Software: Six for signals: 1PPS out, code in, code out, rate out, aux reference, • Network time server on standard network port and Open Collector Alarm output (all with BNC female connector). I/Os are configurable via the keypad/ • Frequency measurement display RS232/422, and the standard network port. • Time interval/event timing • RS-232/422: User selectable up to 19200 bps • Programmable pulse output Connector: Male 9-pin D subminiature • Time Monitor Software for XLi • Network interface: Standard 10/100 Base-T RJ-45. Hardware: Protocols: HTTP, Telnet and SNMP for the user • GPS Timing engine interface, FTP (for firmware upgrades), and optional NTP and SNTP. • Oscillator upgrades: OCXO, High Stability OCXO, Rubidium, High Stability Rubidium • 1PPS: Pulse width: 20 µs (±1µs) on the rising edge on time, • 1, 5, 10 MHz/MPPS frequency outputs TTL levels into 50Ω, BNC female connector. • Low phase noise frequency output (5MHz and 10MHz) • Code input: AM or DC code (IRIG A,B; NASA 36) AM Code: 0.5 Vp-p • Enhanced Low Phase Noise 10 MHz output to 10 Vp-p, 100 kΩ ground, ratio (AM): 3:1 ±10% • N.1 Frequency Synthesizer, 1PPS to 50MPPS in 1PPS steps DC Code: Logic low <1.25 V and Min 300 mV, Logic Hi • Have Quick/1PPS Time and Frequency Reference >1.25 V and Max 10 V. Impedance: 100 k or 50Ω • Have Quick output Polarity: positive or negative • N.8 Frequency Synthesizer Connector: BNC female • Multicode output for IRIG A, B, E, G, H; XR3/2137 and NASA 36 • Code out: Default is IRIG-B AM • DC power supplies (12 VDC, 24 VDC, and 48 VDC options) Format: AM or DC code (IRIG A,B; NASA 36) • Telecommunications interface (E1 and T1 output options) AM Code: 3 Vp-p, into 50Ω ±10%, ratio (AM): 3:1. DC Code: TTL into 50Ω • Power Utility Frequency and Time Deviation Monitor (FTM) Connector: BNC female • Parallel BCD output • Rate out: Default: 10 MPPS. Rate: 1PPS, 10 PPS, 100 PPS, • PTTI BCD output with 10 volt 1PPS & 1PPM 1 kPPS, 10 kPPS, 100 kPPS, 1 MPPS, 5 MPPS, • Expansion Module (4 user selected timing outputs) and 10 MPPS. Duty cycle: 60/40% (±10%). Amplitude: TTL levels into 50Ω • Extended cable length solutions: in-line amplifier (to 300'), down/up converter Connector: BNC female (to 1500'), fiber optic (to 2 km). • Aux ref input: Input frequency: 1, 5, and 10 MHz sine-wave. Amplitude: 1 Vp-p to 10 Vp-p at 1 kΩ to ground. 1 Vp-p to 3 Vp-p at 50Ω to ground. Impedance: Configurable 1 kΩ or 50Ω to ground Connector: BNC female • Alarm: Open collector. Max 25V/50 mA. Connector: BNC female Rear View Page 2 of 13 DATA SHEET XLi NETWORK TIME SERVER ON STANDARD SPECIFICATIONS: NETWORK TIME SERVER OPTION 87-8017 NETWORK PORT NETWORK PROTOCOLS • Network time protocols NTP v3/v4 (RFC 1305) SNTP (RFC 1769) TIME (RFC 868) MD5 (RFC 1321) • Other protocols Telnet (RFC 854) FTP (RFC 959) MIB II (RFC 1213) SNMP v2 Enterprise MIB II (RFC 1157) • Network transport protocol: TCP/IP • Simple Network Management Protocol (SNMP) SNMP provides the network administrator with network status and statistics. This feature implements SNMP versions 1 & 2 and Management Information • Synchronize servers and workstations across the network Base (MIB) I and II. • High-bandwidth NTP capability • Network interface: 10/100 Base-T Ethernet • Network time accuracy: 1 to 10 mS typical • High availability time referenced to XLi • Accuracy: Function of input synchronization source (IRIG or GPS) • MD5 security protocol CLIENT SOFTWARE • NTP broadcast mode An NTP client/daemon is required for client-side synchronization • SNMP Enterprise MIB with any network time server. Comprehensive time client, server • Stratum 1 operation via GPS satellites & management software for easy distribution, management and The high performance Symmetricom Network Time Server (NTS) monitoring of time across the network is also available. represents a breakthrough in network synchronization technology. Visit http://www.symmetricom.com for software time clients for By combining a high-speed/high-capacity network interface and a various operating systems. wide range of network protocol support, XLi seamlessly integrates into existing networks. The NTS distributes time to precisely synchronize client computer clocks over a network. Time is acquired from the host XLi and distributed over the network using the Network Time Protocol (NTP). Client computer clocks can be synchronized within milliseconds. Information on the health and status of the NTP server and the primary time synchronization source is available by using the SNMP protocol Enterprise MIB. Also, MD5 security protocol is included to authenticate NTP client-server communication. The standard network port, when factory enabled, serves as the NTP server via an RJ-45 Ethernet connector. No additional hardware is needed for this option; it utilizes the XLi standard network port, leaving all option slots available. Page 3 of 13 DATA SHEET XLi PROGRAMMABLE PULSE OUTPUT FREQUENCY MEASUREMENT The Programmable Pulse Output option is a software option that The Frequency Measurement is a software option that provides provides a user configurable TTL level pulse output that can be the ability to precisely measure the frequency of an externally used to supply a precisely synchronized “trigger” pulse at specific applied 1, 5, or 10 MHz signal. Measurement resolution is better -12 times or provide periodic pulse outputs. The rising edge of the than 120 x 10 with only a 1-second averaging time. It supports trigger output may be programmed with microsecond resolution a periodic, zero dead-time mode of operation as well as a single- for fine control. The periodic pulse rates supports several popular shot, measurement-on-demand mode. The measurement interval frequencies such as 1 PPS, 1 PP 10 SEC, 1 PPM, 1 PP 10 MIN, can be specified in integer seconds over the range of 1 to 100,000 1 PPH, 1 PP 10 HR, 1 PPD, 1 PP 10 DAYS or 1 PP 100 DAYS are seconds. Frequency measurement results appear on the front available. The pulse width is also programmable. The pulse is panel display and are output via the communication port. supplied via a rear panel BNC. SPECIFICATIONS: FREQUENCY MEASUREMENT 87-8025 SPECIFICATIONS: PROGRAMMABLE PULSE INPUT FREQUENCIES • Keypad selectable frequencies of 1, 5, 10 MHz. OUTPUT (PPO) 87-8024 Input Level: 1.0 to 10 Vpp • Range: 500kHz to 1 PP Year (integer multiples of 1 uS) Input Impedance: 1kΩ, jumper selectable to 50Ω • Pulse width: Programmable in 1μS steps up to 1 year -5 Measurement Range: ±1 x 10 maximum offset; compares the external frequency • On time edge: Rising under test directly to the clock’s disciplined oscillator • Amplitude: TTL Levels into 50Ω Input Frequency: 1 MHz, 5 MHz, 10 MHz • Accuracy: 100nSec Resolution: -12 120x10 @ 1 second -12 12x10 @ 10 seconds -12 1x10 @ 100 seconds • Accuracy: These specifications are subject to change depending on the specific oscillator installed in the XLi.* TCXO -9 1x10 @ 1 second -10 2x10 @ 100 seconds -12 1x10 @ 1 day Ovenized quartz -10 1x10 @ 1 second -10 1x10 @ 100 second -12 1x10 @ 1 day High-stability quartz -11 4x10 @ 1 second -11 4x10 @ 100 seconds -12 1x10 @ 1 day Rubidium -11 4x10 @ 1 second -12 6x10 @ 100 seconds -12 1x10 @ 1 day High-stability Rubidium -11 4x10 @ 1 second -12 6x10 @ 100 seconds -12 1x10 @ 1 day * For oscillator information, refer to Symmetricom’s oscillator datasheet. Page 4 of 13 DATA SHEET XLi TIME INTERVAL/EVENT TIMING OSCILLATORS TIME INTERVAL Symmetricom’s GPS receiver takes full advantage of the excellent long-term stability of the GPS system to steer or “discipline” the The Time Interval function is a software option that provides the receiver’s local oscillator. This process dramatically enhances user with the ability to precisely measure the interval between the performance by removing the long term aging and drift of the time of occurrence of the clock-derived 1 Hz reference pulse and oscillator without operator intervention. the rising edge of the user-supplied 1 Hz pulse. Symmetricom provides a full spectrum of ultra-precise frequency EVENT TIMING reference standards for every application. Upgrades to the XLi The Event Timing feature offers the capability of locating the standard Temperature Compensated Voltage Controlled Crystal time of occurrence of the rising edge of the applied pulse with Oscillator (TCVCXO) are the Ovenized Crystal Oscillator (OCXO), respect to the time of year. A “burst” mode provides increased High Stability Ovenized Crystal Oscillator (OCXO), Rubidium performance during short intervals. The collected data is available Oscillator, and the High Stability Rubidium Oscillator. via the RS-232 or the Telnet port. OSCILLATORS SPECIFICATIONS (TYPICAL) SPECIFICATIONS: TIME INTERVAL/ TCVCXO (Standard in XLi) EVENT TIMING (TI/ET) 87-8026 • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Frequency/timing Allan Deviation INPUT FREQUENCIES • Stability • Rate: 1 PPS –9 1 x 10 @ 1 sec • High level: Logic Hi >1.25V <10V –10 2 x 10 @ 1000 sec • Low level: Logic Low <1.25V >0V –12 1 x 10 @ 24 hours • Active edge: Rising (Positive) –7 • Temperature: 5 x 10 , over 0°C to 50°C when not locked to a reference • Pulse width: 100 nS minimum OCXO OSCILLATOR OPTION 87-399-18 • Input impedance: >1k, jumper selectable to 50 • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) TIME INTERVAL FEATURE • Frequency/timing Allan Deviation • Measurement: • Stability: Rate: 1 per second –10 1 x 10 @ 1 sec –10 Resolution: 5 nS 1 x 10 @ 1000 sec –12 Accuracy: ±5 nS (+ clock accuracy**) 1 x 10 @ 24 hours –8 • Temperature: 1 x 10 , over 0°C to 50°C when not locked to a reference Range: 0.0 to 1 year –9 • Drift rate: 5 x 10 per 24 hours • Display: Time into the second, updated once per second, is displayed to the nanosecond until another event occurs or until the “TIME”, HIGH STABILITY OCXO OSCILLATOR OPTION 87-399-19 “STATUS”, or “POSITION” push-button is pressed. • Accuracy: Function of input synchronization source • Frequency/timing Allan Deviation EVENT TIMING FEATURE • Stability: • Measurement –11 4 x 10 @ 1 sec Rate: 10/second or 100/second burst –11 4 x 10 @ 1000 sec Resolution: 5 nS –12 1 x 10 @ 24 hours Accuracy: ±5 nS (+ clock accuracy**) –9 • Temperature: 1 x 10 , over 0°C to 50°C when not locked to a reference Range: 0.0 to 1 year –10 • Drift rate: 1 x 10 per 24 hours • Display: Event Time occurrence, hundreds of days through nanoseconds, RUBIDIUM OSCILLATOR OPTION 87-399-RB1U, 87-399-RB2U is displayed until another event occurs or until the “TIME”, “STATUS”, or • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) “POSITION” push-button is pressed. • Frequency/timing Allan Deviation ** For clock accuracy see accuracy of host unit. • Stability: –11 4 x 10 @ 1 sec GPS-XLi Disciplined Oscillator –12 Allan Variance (Typical) 6 x 10 @ 1000 sec 1E-09 –12 1 x 10 @ 24 hours –10 • Temperature: 3 x 10 , over 0°C to 50°C when not locked to a reference –11 1E-10 • Drift rate: 5 x 10 per month (720 hours) HIGH PERFORMANCE RUBIDIUM OSCILLATOR OPTION 87-399-RB2UA 1E-11 • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Frequency/timing Allan Deviation 1E-12 • Stability: –11 4 x 10 @ 1 sec –12 6 x 10 @ 1000 sec 1E-13 10 100 1000 10000 100000 –12 1 x 10 @ 24 hours Tau (seconds) –10 • Temperature: 3 x 10 , over 0°C to 50°C when not locked to a reference TCXO OCXO Hi-Stab OCXO Rubidium –11 • Drift rate: 1 x 10 per month (720 hours) Page 5 of 13 Allan Deviation DATA SHEET XLi 1, 5, 10 MHZ/MPPS EXPANSION MODULE The 1, 5, 10 MHz/MPPS Output card provides four precise sine The Expansion Module is a versatile option that expands the wave or square wave through four BNC outputs. These outputs number of standard time code and pulse rate outputs from the are phased-locked to the host receiver’s disciplined reference XLi. Four independent, user configurable outputs are provided. oscillator. They are automatically enabled upon power-up, and are The output signals are selectable via an on-module rotary switch. independently selectable by the user with no configuration setup Specify output signal configuration at time of order. A version of the required. module is also available supporting an alarm relay output. Outputs are preconfigured at the factory. Please specify desired The available output signal types are as follows: outputs on the sales order. • Time Code AM/DC: Format mirrors XLi standard code output (IRIG A,B; IEEE 1344 or NASA 36) SPECIFICATIONS: 1, 5, 10 MHZ/MPPS OUTPUT 86-8008 • Alarm 1, 5, or 10 MHz OUTPUT • Rates (1 PPS, 1 kPPS, 10 kPPS, 100 kPPS, 1 MPPS, • Amplitude: 1 Vrms into 50Ω 5 MPPS,10 MPPS) • Harmonic distortion: –30 dBc • Programmable Pulse (Requires PPO option to be installed) • Synchronization: Phase locked to the clock 10 MHz • Alarm Relay (87-8134-2) • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Connector: Female, BNC SPECIFICATIONS: 1, 5, or 10 MPPS OUTPUT - EXPANSION MODULE 87-8034-1 • Amplitude: TTL into 50Ω - EXPANSION MODULE W/ ALARM RELAY 87-8134-2 • Duty cycle: 50% General • Synchronization: Phase locked to the clock 10 MHz Connector: Female BNC • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) Quantity: 4 Options Slots: • 1 slot (87-8034-1) • 2 slots (87-8134-2) Time Code • Format: IRIG A, B; IEEE 1344 or NASA 36 • Amplitude (AM): 3.0 Vp-p +/-1V, into 50Ω • Ratio (AM): 3:1 +/- 10% • Amplitude (DC): TTL into 50Ω • Phasing: In phase with carrier ± 10μS Alarm • Active High (Alarm state) • Amplitude: TTL Levels into 50Ω Rates • Rate: 1 PPS, 1 kPPS, 10 kPPS, 100 kPPS, 1 MPPS, 5 MPPS, 10 MPPS • Duty cycle: 60/40% +/- 10% • Amplitude: TTL Levels into 50Ω Programmable Pulse (Optional) • On time edge: Rising • Amplitude: TTL Levels into 50Ω Alarm Relay 87-8134-2 • Connection: Terminal strip, COM, NO, NC • Max Voltage: 48 VAC/VDC • Max Current: 2A @ 24 VDC Page 6 of 13 DATA SHEET XLi ENHANCED LOW PHASE NOISE LOW PHASE NOISE OUTPUT (5 MHZ, 10 MHZ) 10 MHZ OUTPUT This module provides the lowest phase noise frequency outputs This card provides four isolated, 50 ohm frequency output signals from the XLi. Four isolated, 10 MHz frequency output signals with with exceptional spectral purity. Two versions of this module are exceptional spectral purity. Isolation from the receiver’s internal available to provide 10 MHz or 5 MHz outputs. Isolation from the digital signal noise and power supply noise enables the high- receiver’s internal digital signal noise and power supply noise performance phase noise and spurious noise characteristics that enables high-performance phase noise and spurious noise approaches the performance of the on-module enhanced low noise characteristics as the on-module low noise oscillator source. The oscillator. This option requires an oscillator upgrade to the XLi low phase noise option requires an oscillator upgrade to the XLi system, such as an OCXO, High Stability OCXO, Rubidium or High system, such as an OCXO, High Stability OCXO, Rubidium or High Stability Rubidium. Stability Rubidium. SPECIFICATIONS: ENHANCED LOW PHASE SPECIFICATIONS: LOW PHASE NOISE OUTPUT NOISE OUTPUT 87-8040 MODULE (5 MHZ AND 10 MHZ) LOW PHASE NOISE 10 MHz OUTPUTS 87-8009-10 • Provides four 10 MHz frequency outputs • Provides four 10 MHz frequency output signals • Signal type: Analog sine wave • Signal type: Analog sine wave • Synchronization: Frequency locked to the clock 10 MHz • Synchronization: Phase locked to the clock 10 MHz • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Amplitude: +13dBm (±1.5 dBm) • Amplitude: +13dBm (±1dBm) • Output impedance: 50Ω • Output impedance: 50Ω • Quantity: 4 • Quantity: 4 • Connector: BNC female • Connector: BNC female • Option Slots: 2 • Option Slots: 1 • Harmonic distortion: -50 dBc (2nd harmonic) • Harmonic distortion: –30dBc (2nd harmonic) • Spurious: -80dBc (10 Hz - 10 kHz SSB) • Spurious: –90dBc (10 Hz - 10 kHz SSB) • Isolation: -60dBc • Isolation: –70dBc • Phase noise • Phase noise -98 dBc/Hz @ 1 Hz offset –85 dBc/Hz @ 1 Hz offset -127 dBc/Hz @ 10 Hz offset –115 dBc/Hz @ 10 Hz offset -145 dBc/Hz @ 100 Hz offset –140 dBc/Hz @ 100 Hz offset -150 dBc/Hz @ 1 kHz offset –145 dBc/Hz @ 1 kHz offset –150 dBc/Hz @ 10 kHz offset -153 dBc/Hz @ 10 kHz offset LOW PHASE NOISE 5 MHz OUTPUTS 87-8009-5 • Provides four 5-MHz frequency output signals • Signal type: Analog sine wave • Synchronization: Phase locked to the clock 10 MHz • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Amplitude: +13dBm (±1dBm) • Output impedance: 50Ω • Quantity: 4 • Connector: BNC female • Harmonic distortion: –30dBc • Spurious: –90dBc • Isolation: –70dBc • Phase noise –85 dBc/Hz @ 1 Hz offset –115 dBc/Hz @ 10 Hz offset –140 dBc/Hz @ 100 Hz offset –145 dBc/Hz @ 1 kHz offset –150 dBc/Hz @ 10 kHz offset Page 7 of 13 DATA SHEET XLi N.8 FREQUENCY SYNTHESIZER N.1 FREQUENCY SYNTHESIZER The N.1 Frequency Synthesizer provides pulse rates from 1PPS The N.8 Frequency Synthesizer provides pulse rates from 8 kPPS through 50 MPPS in 1PPS steps, with the output locked to the through 8192 kPPS in 8 kPPS steps, with the output frequency system oscillator. This option card offers four independently locked to the system oscillator. The output configuration is via the programmable frequency synthesizers. keypad/display, RS232/422, and the standard network port. This option card offers four independently programmable frequency SPECIFICATIONS: N.1 FREQUENCY OUTPUTS 87-8022 synthesizers that provide pulse rates from 8 kPPS through 8192 • Channels: 4, independently programmable kPPS in 8 kPPS steps. • Input reference frequency: System 10 MPPS • Output pulse rates: 1 PPS through 50 MPPS in 1 PPS steps SPECIFICATIONS: N.8 FREQUENCY OUTPUTS 86-708-1 • Output drive: RS-422 • Channels: 4, independently programmable • Wave form: Square wave • Output pulse rates: 8 kPPS through 8192 kPPS in 8 kPPS steps • Synchronization: Frequency locked to the clock 10 MHz • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Jitter cycle-to-cycle: <1nS • Output drive: RS-422 levels into 50Ω • Output connector: Triax female (Trompeter BJ-77) • Wave form: Square wave • Synchronization: Frequency locked to the clock 10 MHz • Jitter cycle-to-cycle: <10 nS • Connector: Triax female (Trompeter BJ-77) Page 8 of 13 DATA SHEET XLi HAVE QUICK/1PPS TIME AND HAVE QUICK OUTPUT FREQUENCY REFERENCE INPUT The Have Quick and / or 1PPS Time and Frequency reference is The Have Quick Output option provides time of day, day of year configurable to synchronize the XLi as a primary or secondary and year in the Have Quick II format conforming to ICD-GPS-060. reference source. It can be configured to synchronize the major Have Quick II output is typically used to synchronize military radio and minor time to the Have Quick incoming code, minor time to the systems. Transmission of the Time Figure of Merit (TFOM) in the 1PPS input, or major time to the Have Quick incoming code with Have Quick code is user selectable to insure compatibility with minor time synchronized by the 1PPS. legacy equipment. SPECIFICATIONS: HAVE QUICK/1PPS SPECIFICATIONS: HAVE QUICK OUTPUT REFERENCE 87-8016-3 87-8016-6 1PPS Input • Format: Have Quick II (ICD-GPS-060) • Frequency: 1 Hz • Bit period: 600μs ±10μs • Accuracy: 1μSec • Bit rate: Approximately 1667 BPS • Stability: • Frame rate: 1 frame/second -9 1 x 10 @ 1 sec • Frame length: 512 bits or 504 bits with no TFOM -10 2 x 10 @ 1000 sec • Accuracy: 1 μs -12 3 x 10 @ 1 day • Connector: 4 Isolated female BNC • High Level: >1.25V <10V • High Level: >4.5 and Max 5.5V • Low Level: <1.25V >0V • Low Level: <0.5V and Min 0V • Synchronization edge: Positive • Impedance: 1k Ω to ground • Connector: BNC female Have Quick Input • Format: Have Quick II (ICD-GPS-060) • Bit period: 600μs ±10μs • Bit rate: Approximately 1667 BPS • Frame rate: 1 frame/second • Accuracy: 1μSec • Stability: -9 1 x 10 @ 1 sec -10 2 x 10 @ 1000 sec -12 3 x 10 @ 1 day • High Level: >4.5 and Max 5.5V • Low Level: < +0.5V and Min 0V • Impedance: 1k Ω to ground • Connector: BNC female Page 9 of 13 DATA SHEET XLi MULTICODE OUTPUT DC POWER SUPPLIES • Programmable formats • Three voltage ranges: 12-18, 18-36, or 36-72 Vdc • Up to four code outputs The modular DC power supplies plug in the back of the XLi and can • Codes available: IRIG A, B, E, G, H; XR3/2137 and NASA 36 be used in place of the standard AC power supply, or in addition to it as a redundant power source. The DC power supplies will take Select the various time code formats by using any of the three two optional slots for the 1U chassis leaving only two for other interfaces available: the front panel keypad and display, the RS- options; however, in the 2U chassis, there is a dedicated bay only 232/422 serial port, or the standard network port that is accessible for the secondary power supply (DC included) leaving all 10 option from anywhere in the world. The available time code format menu slots available. contains IRIG A, B, E, G, H; XR3/2137, and NASA 36. SPECIFICATIONS: DC POWER SUPPLIES SPECIFICATIONS: MULTICODE OUTPUT 87-6002-XL1 • Input connector: Three-position screw terminal block • Isolation (ground): Input is fully floating. Either input polarity can be strapped • Amplitude modulated; to chassis ground at the input terminal block. Amplitude into 50Ω: 0–3 Vpp, adjustable via internally accessible • Isolation input to output: 500 VAC, 710 VAC minimum potentiometer • Power supply status: The fault detector monitors all three output voltages and Amplitude into 600Ω: 0–10 Vpp, adjustable via internally accessible provides a visual (panel LED) and fault output if any output voltage decreases potentiometer by 10%. Modulation ratio: 2:1 to 5:1 adjustable via internally accessible potentiometer • Panel status LED: Green LED on with no fault and DC power applied. Green • Connector: BNC LED off with fault or no DC power applied. • Quantity: 4 • Output status line: Open collector. High impedance state with no fault. Low impedance state with power supply fault. • Output impedance: 25Ω • Fan CFM: Exhaust 3-6 CFM • Accuracy: Function of input synchronization source (GPS, IRIG, 1PPS, Have Quick) • Time codes 12 Vdc POWER INPUT 87-8012-12 • Input voltage range: 12-18 VDC for nominal 12 volt input IRIG A 130 IRIG A 133 IRIG B 120 IRIG B 123 • Input current, maximum: 7.5 amps @ 12 volts input IRIG E 111 IRIG E 112 IRIG E 121 IRIG E 122 • Output specifications: IRIG G 141 RIG G 142 IRIG H 111 IRIG H 112 +5 V ±2%, 20 watts, 4 amps IRIG H 121 IRIG H 122 2137 XR-3 +12 V ±2%, 24 watts, 2 amps NASA-36 (All codes in 24 hour format) -12 V ±2%, 24 watts, 2 amps • Time references: Standard, UTC, GPS, or Local 24 Vdc POWER INPUT 87-8012-24 • Input voltage range: 18-36 Vdc for nominal 24 volt input • Input current, maximum: 6 amps @ 18 volts input • Output specifications +5 V ±2%, 25 watts, 5 amps +12 V ±2%, 30 watts, 2.5 amps -12 V ±2%, 24 watts, 2 amps 48 Vdc POWER INPUT 87-8012-48 • Input voltage range: 36-72 VDC for nominal 48 volt input • Input current, maximum: 3 amps @ 36 volts input • Output specifications: +5 V ±2%, 25 watts, 5 amps +12 V ±2%, 30 watts, 2.5 amps -12 V ±2%, 24 watts, 2 amps Page 10 of 13 DATA SHEET XLi TELECOMMUNICATIONS INTERFACE SECOND SERIAL TALKER OR T1/E1 OUTPUT The T1 and E1 output modules provide telecommunications The Second Serial Talker or T1/E1 module is multi-function, timing signals that meet the requirements of ITU-T G.703 and and user configurable to provide one of three signal types on the ITU-T G.704 for both the 12-frame multiframe (D4 or Super- output ports: Frame), 24-frame multiframe (ESF or Extended SuperFrame), • Serial Talker: re-broadcast or replication of the standard XLi serial port and 16-frame multiframe (E1) formats. In addition, when the XLi transmit data is configured with an appropriate high stability oscillator option • T1: 1544 kbps frequency (OCXO, high stability OCXO, Rubidium and High Stability Rubidium) • E1: 2048 kbps frequency and locked to a GPS reference (or equivalent), the requirements of ANSI T1.101-1994 and ITU-T G.811 pertaining to primary reference The selection of the signal type is made with on-board jumpers. source operation are met. LEDs mounted to the rear panel identify the signal selected. T1 Option: 87-6000T1-8 When configured for T1 or E1 outputs, an XLi is configured with • Framed all 1s DS1/T1 1544 kb/s outputs (Two outputs: A and B) an appropriate high stability oscillator option (OCXO, high stability Formats: SuperFrame (D4) Line code: B8ZS/AMI (these are the same for all 1s) OCXO, Rubidium and High Stability Rubidium) and locked to a GPS Interface: Balanced, Z0 =100Ω, on wire wrap pins reference (or equivalent), the requirements of ANSI T1.101-1994 Wave shaping: T1 short loop (DSX-1; 0 – 655’) • 64 kb/s composite clock output (Aux Out 1) and ITU-T G.811 pertaining to primary reference source operation Format: Per ITU-T G.703 standard are met. This module is CE compliant. Centralized Clock Interface, paragraph 1.2.2. AMI with 5/8 duty cycle. All 1s with bipolar violations at an 8 Kb/s rate. SPECIFICATIONS: SECOND SERIAL TALKER OR Interface: Balanced, 2 V peak into 135Ω, on wire wrap pins • Outputs (Aux Out 2, 3, 4) T1/E1 OUTPUT 87-8047 Frequency: 1544 kb Serial Talker Interface: Balanced, RS-422 levels into 100Ω, on wire wrap pins • Balanced RS-422 and RS-232 E1 Option: 87-6000E1-6 • Qty: Two RS-232 and four RS-422 outputs • Framed all 1s CEPT E1 2048 kb/s outputs (Two outputs: A and B) Format: 16 frame multiframe T1 Line code: HDB3/AMI (these are the same for all 1s) • Frequency: 1544 kbit/s Interface: Balanced, Z0=120Ω, on wire wrap pins • Interface: Balanced, RS-422 levels into 120 Ω Wave shaping: CEPT G.703 pulse template requirements • Synchronization: Phase locked to the clock 10MHz • Major and minor alarm relay closures • Qty: Four outputs Format: Form-C Normally Open and Normally Closed contacts Interface: Wire wrap pins • Connector: Two Male 9-pin D Contacts: Rated to 115 VAC/150 VDC at 2 A • Physical: Single high option bay. • 64 Kb/s composite clock output (Aux Out 1) E1 Format: As per ITU-T G.703 • Frequency: 2048 kbit/s Centralized Clock Interface, paragraph 1.2.2. AMI with 5/8 duty cycle • Interface: Balanced, RS-422 levels into 120 Ω All 1s with bipolar violations at an 8 kb/s rate • Synchronization: Phase locked to the clock 10MHz Interface: Balanced, 2 V peak into 135Ω, on wire wrap pins • Qty: Four outputs • 2048 Kb/s sine outputs (Aux Out 2, 3, 4) • Connector: Two Male 9-pin D Frequency: 2048 Kb/s • Physical: Single high option bay Interface: Balanced RS-422 levels on wire wrap pins General Specification (T1 and E1 Configurations) General Specification (T1 and E1 Options) • Accuracy: Function of input synchronization source • Synchronization (GPS, IRIG, 1PPS, Have Quick) Phase locked to the XLi 10 MHz reference clock • Synchronization Status Messaging (SSM): not supported Accuracy: Function of input synchronization source • CE Compliant: Yes (GPS, IRIG, 1PPS, Have Quick) • Synchronization Status Messaging (SSM): not supported • Major and minor alarm relay closures Format: Form-C normally open and normally closed contacts Interface: Wire wrap pins Contacts: Rated to 115 VAC/150 VDC at 2 A • CE Compliant: No Page 11 of 13 DATA SHEET XLi PTTI BCD OUTPUT PARALLEL BCD OUTPUT SPECIFICATIONS: PTTI BCD OUTPUT 87-8045 The parallel BCD time output options provide an interface to synchronize external pieces of equipment. There are three versions BCD TIME CODE of this option: • Data: 40-bit serial BCD output (time of day, day of year, TFOM) 24-bit serial BCD output (time of day only) • Output: ±6 V differential per ICD-GPS-060 The first version provides 42 output lines with hundreds of days • Connector: 9 Pin 'D', Male through units of milliseconds. In addition it provides four time 1 PPS quality lines and two data valid strobes. • Output: 10 VDC, ±1 V into 50 ohms • Pulse width: 20 microseconds, ±1 microsecond The second version provides 54 output lines with hundreds of days • Rise time: <20 nanoseconds • Fall time: <1 microsecond through microseconds. Four time quality lines and three data valid • Phasing: In phase with the XLi 1PPS ± 100ns strobes are also provided. • Connector: BNC 1 PPM The third version provides hundreds of days through milliseconds, • Output: 10 VDC, ±1 V into 50 ohms two strobes, and an unlock status line. No time quality data is • Pulse width: 20 microseconds, ±1 microsecond • Rise time: <20 nanoseconds provided. • Fall time: <1 microsecond • Phasing: In phase with the XLi 1PPS ± 100ns SPECIFICATIONS: PARALLEL BCD OUTPUT • Connector: BNC Parallel BCD mSec with Time Quality 87-8090 MECHANICAL • Outputs: • Option Slots: 2 - Milliseconds through day-of-year, (4) time quality bits, (2) strobes (1PPS, 1kPPS) • Output Drive (TTL): LVTTL levels, 4mA source or sink • Logic Levels: Low <0.4V, High >2.4V • Connector: 50 pin 'D' female • Option Slots: 1 • Compatibility: Legacy XL-DC Parallel BCD Millisecond Module (86-390) Parallel BCD uSec with Time Quality 87-8090-1 • Outputs: - Microseconds through day-of-year, (4) time quality bits, (3) strobes (1PPS, 1kPPS, 1MPPS) • Output Drive (TTL): LVTTL levels, 4mA source or sink • Logic Levels: Low <0.4V, High >2.4V • Connectors: 50 pin 'D' female, 25 pin 'D' female • Option Slots: 2 • Compatibility: Legacy XL-DC Parallel BCD Microsecond Module (86-390-1) Parallel BCD mSec 87-8090-2 • Outputs: Milliseconds through day-of-year, (2) strobes (1PPS, 1kPPS), Unlock status • Output Drive (TTL): LVTTL levels, 4mA source or sink • Logic Levels: Low <0.4V, High >2.4V • Connector: 50 pin 3M ribbon type connector male • Option Slots: 1 • Compatibility: Legacy ExacTime 6000 GPS_Option_13A - Parallel BCD Page 12 of 13 DDAATTAA SHEET SHEET XLi XLi SPECIFICATIONS: FREQUENCY AND TIME FREQUENCY AND TIME DEVIATION MONITOR (FTM) DEVIATION MONITOR 87-8023 GENERAL SPECIFICATIONS • Measurement input: 95–260 VAC, 40–70 Hz; user-selectable 50 or 60 Hz operation. • Signal conditioning: RFI input filter; multistage low-pass filter. Line fused; varistor protected 2500 VAC rms isolation. Transformer coupled. • Remote display port: RS-422. Each output term has individual address codes. FREQUENCY DEVIATION • Current deviation of the measurement input frequency from the nominal frequency (50 or 60 Hz).Measurement Sample Rate: 1 sample per second This plug-in card meets the specific needs of the electrical power Range: ±9.999 Hz Measurement resolution: 30 μHz industry. It provides a digital display and computer-compatible Output data resolution: Resolution to 1 mHz outputs of the following parameters: TIME DEVIATION • Accumulated time drift due to user’s local frequency difference as compared to • Frequency Deviation – The instantaneous difference between the the host clock. The user can enter an initial time offset. locally generated frequency (typically 50 or 60 Hz) and the preci- Measurement sample rate: 1 sample per second Range: ±99.999 seconds sion frequency of the host Synchronized Clock. Measurement resolution: 500 nS Output data resolution: 1 mS • System Frequency – The user’s locally generated frequency. Time offset input: ±99.999 seconds maximum. Entry via keypad or • Time Deviation – The accumulated difference in time between a communication port. clock locked to the locally generated frequency and the precise SYSTEM FREQUENCY • Current measurement of input reference frequency. time of the Synchronized Clock. Range: 40 - 70 Hz Measurement Resolution: 30 μHz • System Time – (Hours, minutes and seconds) as defined by a Output Data Resolution: 1 mHz clock running off the user’s locally generated frequency. SYSTEM TIME • Local Time – Local corrected UTC time seconds through days. • Arithmetic value calculated from local time, plus user-entered offset, plus time deviation. Both the display port and the communication port have user- selectable baud rates, parity and the number of data bits and stop bits. The monitored frequency and time deviation values are available via the front panel display(s), the communication port, and the remote display driver RS-422 port. 2300 Orchard Parkway ©2013 Symmetricom. Symmetricom and the Symmetricom logo are registered trademarks San Jose, California 95131-1017 of Symmetricom, Inc. All specifications subject to change without notice. tel: 408.433.0910 fax: 408.428.7896 www.symmetricom.com DS/XLi/020813 900-00504-000 A