Symmetricom XL-GPS UPGRADED NTP Time Server 10Mhz Oscillator IRIGB TIET PPO FREQ

Tested/Guaranteed • Fully Working • Good GPS Lock and Date • OCXO Oscillator Upgrade • ALL Options Installed - NTP, PPO, FREQ, TIET • 10MHz 1PPS IRIG-B • 115/230V Power

Photos show the actual item for sale

Introduction

Note: This unit has been upgraded with a new, latest generation GPS receiver module from ublox. It is therefore unaffected by the September 18th 2022 week number rollover event that caused most Symmetricom unis of this type to fail to sync to GPS and eventually to show an incorrect date. The new card is good for accurate GPS time and date reception until 2037.

Here's a lightly used XL-GPS time receiver and timecode/frequency generator. The item has been tested to confirm that it works as it should. As I recall the power supply and display modules have almost no prior use. The XL-GPS is very similar to the XLi model, but without a web based interface. So you should probably plan on configuring the unit using the serial port. The response to relevant serial port commands is shown at the end of the listing. This unit has ALL the optional functions enabled -ie. NTP Server, Frequency Measurement, TIET (Time Interval, Event Timer), Programmable Pulse Output.

Full details may be obtained from the User Manual
(https://www.prostudioconnection.net/1112/XL-GPS_Manual.pdf)

The antenna voltage is 12V so you will need an appropriately matched antenna to receive time from the GPS system. The photos show the actual item for sale. The listing comprises the items shown in the images only; no additional accessories, cables, documents or software included.

Features

• 12 Channel GPS Receiver with TRAIM
• Accurate to 30 Nanoseconds RMS to UTC(USNO)
• Frequency Accuracy to 1x10-12 (long term)
• Time Code Input/Output (IRIG A,B; IEEE 1344, NASA 36)

• 10 MHz Frequency Reference Output
• 1PPS, Selectable Pulse Rates, and Alarm Outputs
• Ethernet Network Port (10/100 Base-T)
• SNMP with Enterprise MIB
• Telnet and Serial Port (RS-232/422) for Monitoring and Control
• Bright LCD Display and Keypad
• Network Time Server Option Supports NTP
• Option Bay support time and frequency option modules

Description

At the core of the XL-GPS is Symmetricom’s advanced XLi technology which assures ultra accurate and reliable performance. The XL-GPS offers cost-effective functionality and ease-of-use where the XLi offers modularity and extensibility through multiple option slots and modules.

Full details may be obtained from the User Manual

Nanosecond Accuracy
The XL-GPS clock is accurate to within 30 nanoseconds to Coordinated Universal Time (UTC) when synchronized to the integrated 12 channel GPS satellite receiver. Ultra-stable frequency outputs are accurate to less than 1x10-12 long term. For improved short-term stability and holdover performance, an oven oscillator option is available. A time code input provides an alternate or back-up reference to GPS.

Easy Monitoring and Control
The XL-GPS provides multiple interfaces to facilitate easy monitoring and control. The built-in network interface supports remote operation via telnet and SNMP. Local control is supported via a RS-232/422 port and a front panel LCD display and keypad is provided for direct control. A discrete alarm output is also provided to drive an alarm monitoring system.

Variety of Outputs
The XL-GPS provides a variety of standard time and frequency outputs including a 10 MHz frequency reference, one pulse-per-second (1PPS), time codes (IRIG A, B; IEEE 1344 and NASA 36), pulse rates up to 10MPPS, and an open collector alarm output. A rear panel option bay supports expansion of standard time and frequency outputs with a hardware option module. A Programmable Pulse Output (PPO) is available as a software option. The front panel display provides operators with “at-a-glance" system status.

Versatile Measurement
The versatile XL-GPS supports measurements of time and frequency signals relative to its very accurate clock. The Frequency Measurement (FM) option supports analysis of 1, 5, 10 MHz frequencies. The Time Interval/Event Timing (TI/ET) supports precise event time tagging and time interval measurements to 5 nanosecond.

Bottom Line
The XL-GPS has a strong set of core features that can be extended with a number of versatile options to meet the needs of a wide range of applications.