Nokia Solutions and Networks T5DJ1 Benutzerhandbuch

68P64115A18–1

Mar 2003

1X SC 4812T Lite BTS Optimization/ATP Software Release R2.16.1.x

6-17

Table 6-17: Troubleshooting Multi-FER Failure

n Step

1

Verify test equipment is configured correctly for a FER test.

2

Verify test equipment is locked to 19.6608 and even second clocks. On the HP 8921 analyzer, the
yellow LED (REF UNLOCK) must be OFF.

3

Verify MCCs have been loaded with data and are INS_ACT.

4

Disable and re-enable the MCC (1 or more based on extent of failure).

5

Disable, re-load code and data, and re-enable MCC (one or more MCCs based on extent of
failure).

6

Verify antenna connections to frame are correct based on the LMF directions messages.

7

For diversity RX FER failures in companion frame configurations, verify the following:

7a

– Inter–frame diversity RX cables are correctly connected between RX EXPANSION

connectors on each frame (refer to SC4812ET Lite Installation; 68P09253A36.

7b

– The RX test cable is connected to the correct RX antenna connector on the opposite

companion frame (refer to Table 4-1).