Product Description and Features
1: Overview of the XL-GPS Time and
Frequency Receiver
Product Description and Features
The XL-GPS Time and Frequency Receiver is high-precision time and frequency instrument
that generates time and frequency outputs from its GPS-disciplined system clock. When
locked to Symmetricom’s timing-optimized GPS receiver, the XL-GPS provides 1x10
-12
frequency output accuracy, and better than 30nS RMS accuracy to UTC.
Two user interfaces are available for managing the XL-GPS:
• command line interface, available from the serial and network ports (using TELNET)
• keypad interface, available on the front panel of the XL-GPS
The standard configuration includes:
• 1U chassis
• GPS receiver
• Liquid crystal display (LCD), and a 19-button keypad
• 10 MHz and 1 Pulse/sec discrete output signals (via rear panel BNC connectors)
• RS-232 or RS-422 (via rear panel 9 pin D Male)
• Network Port 10/100 Base-T for TELNET and SNMP
• Rate Out 1/10/100 PPS, 1/10/100 kPPS, 1/5/10 MPPS (1 output via a rear panel
BNC)
• Code Output (IRIG-A, B, IEEE 1344 and NASA 36, via a rear panel BNC)
• Alarm Open Collector (via a rear panel BNC)
• 90-264 VAC
The following option modules can be added:
1. 1,5,10 MHz/MPPS module
2. Multi-code module
3. 10 MHz sine distribution module with 4 ports
4. Expansion Module provides four female BNC connectors that are factory-con-
figurable per the sales order.
- IRIG time code (AM)
- IRIG time code (DC)
- Alarm
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