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Symmetricom XLi IEEE 1588 User Manual

Symmetricom XLi IEEE 1588
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18 XLi IEEE 1588 Clock
997-01510-03, Rev. C, 12/12/2006
SSSSSSSSSSSS SSSSSSSSSS SSSSSSS S SSS S SSSSS S
1
VSWR, and input impedance also affect system performance. Symmetricom recommends using the
standard 12-volt capable antenna and cable provided with the GPS receiver.
Figure 4: GPS Signal Strength Requirements
Connect the GPS antenna cable to the GPS receiver’s ANTENNA connector at the rear of the XLi.
Note: Use a 12-volt capable GPS antenna.
Making Additional Connections and Powering Up
Make the following connections to the XLi (all cables supplied):
1. For access to the web and command line interfaces, connect NET network port (on the Main CPU
Card, 87-8000) to the LAN using the Cat 5 network cable (supplied).
For local access to the command line interface only, connect the SERIAL I/O port (on the Main CPU
Card, 87-8000) to the to the PC’s serial port using a null modem cable.
2. Connect the 1588 network port to the timing network.
3. Connect the AC Power Supply it to a power source. The green STATUS light on the power supply
indicates that the XLi is receiving power.
Upon receiving power, the XLi goes through its startup sequence; displaying “BOOTING”, “LOAD-
ING”, and “STARTING”. After approximately 40 seconds, the XLi displays the clock status, and user
interfaces (front panel/command line) become available. The IEEE 1588 card requires an additional
2 minutes to complete its startup sequence before it is available from the user interfaces.
Warning: Ensure that a disconnect device, such as a switch, with the appropriate voltage/
current rating is provided when operating/installing the XLi.

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Symmetricom XLi IEEE 1588 Specifications

General IconGeneral
BrandSymmetricom
ModelXLi IEEE 1588
CategoryClock
LanguageEnglish

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