Symmetricom TimeSource 3100 User Guide

097-72020-01 Revision K – December 2005 TimeSource 3100 User’s Guide 65
Chapter 3 Installing the TimeSource 3100
Making Cable Connections
Figure 3-17. ESCIU Cutover without Jacks (Out-of-Service)
Cutover Procedures for In-Service Equipment
If standard digital signal level access jack sets, such as DDF or DSX-1 jacks, were
cabled to the ESCIU module, the following in-service cutover procedure must be
used. Consult the local company Installation Job Specifications to ensure that the
network element to be re-timed from the ESCIU module will be connected to the
ESCIU module A OUT terminals. Refer to Figure 3-18 for the following procedure:
1. Patch a bridging repeater from the MON jack of one NE to the IN jack of the other
NE in both directions of transmission on the E1 system to be cutover. Place a 75
Ω termination plug in the OUT jack in each direction.
2. Remove the cross-connect wiring from the OUT and IN jacks (off-normal side of
jacks) in both directions of transmission.

Symmetricom TimeSource 3100 Specifications

General

Brand	Symmetricom
Model	TimeSource 3100
Category	GPS
Language	English