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TimeSource 3600
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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 retimed from the ESCIU module is connected to the ESCIU module
A OUT terminals. Refer to Figure 32 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.
3. In the direction not to be synchronized by the ESCIU module,
connect new cables from the ESCIU module RTNx IN connector
to the NE transmit (OUT) terminal, and connect from the ESCIU
module RTNx OUT connector to the NE receive (IN) terminal.
4. In the direction to be synchronized by the ESCIU module,
connect new cables from the ESCIU module IN connector to the
NE transmit (OUT) terminal, and connect from the ESCIU
module OUT connector to the NE receive (IN) terminal.
5. Remove the 75
Ω
(E1) termination plug from the OUT jack and
patch cords from the NE IN jack. The E1 system bitstream is now
going through the ESCIU module.
6. Verify that there are no alarms on the NEs on the E1 system. If
there are alarms, repeat Step 1 and recheck the cross-connect
wiring. Repeat Step 5.
Note:
If the TimeSource 3600 is still in warm-up or searching for GPS
satellites, alarms may be present. All synchronization-related alarms
should clear while the TimeSource 3600 is in steady-state operation.
7. Remove the remaining patch cords from the NE MON jack.
Summary of Contents for TimeSource 3600
Page 1: ...TimeSource 3600 GPS Primary Reference Source 097 72060 01 Issue 2 ...
Page 4: ...4 TimeSource 3600 This page intentionally left blank ...
Page 16: ...16 TimeSource 3600 This page intentionally left blank ...
Page 121: ...4 Chapter TL1 Reference This chapter provides information for using the TL1 language ...
Page 223: ...6 Chapter Specifications This chapter provides equipment specifications ...
Page 247: ...Index ...