User's Manual

Table Of Contents
On-Line Commissioning 75
Before disconnecting the E1 or T1 cables, the field technician must make sure that the cable is labeled
in a way that clearly identifies its origin (a particular E1 or T1 port of the BSC, or a particular port of an E1
or T1 panel, etc.) and destination (a particular E1 or T1 slot and port on the BSC).
Provide the OMC operator with all part, revision and serial numbers for the BTS cards and
modules. This information was gathered during the physical installation and is available in
Checklist 1.
Recovery Tests
1 At the installation site, power off the BTS. Have the OMC operator verify the changed state
of the BTS.
2 At the installation site, power on the BTS. Have the OMC operator verify the changed state of
the BTS.
3 Have the OMC operator lock the E1 or T1 ports, and verify that BTS alarms appear.
4 Have the OMC operator unlock the E1 or T1 ports, and verify that BTS alarms clear.
5 At the BTS, disconnect all E1 and/or T1 cables. Monitor the LED sequence of the BTS as
described in Chapter Three.
6 Reconnect both E1 and/or T1 cables to the BTS E1 or T1 trunk card. Monitor the LED
sequence of the BTS as described in Chapter Three.
External Alarm Tests
1 Test external alarms as per the following procedures:
Test 1
A Open the door of the BTS.
B After a delay, the OMC operator must observe an alarm event.
C Close the door.
D After a delay, the alarm state displayed at the OMC changes from open to closed.
Test 2
A If the first external alarm is used, close the alarm relay (i.e. trigger the first
customer-defined alarm).
B After a delay, the OMC operator must observe an alarm event.
C Close the alarm relay by opening the alarm contact.
D After a delay, the alarm state displayed at the OMC changes from open to closed.
Before starting any of the following procedures, the field technician
needs to ensure that anti-static precautions are taken.