User's Manual Part 3

BTS Redundancy/Alarm Testing

Mar 2001

3-85

68P09253A61

SCt4812T CDMA BTS Optimization/ATP

DRAFT

Objective

This section tests the redundancy options that could be included in the

cell site. These tests verify, under a fault condition, that all modules

equipped with redundancy switch operations to their redundant partner

and resume operation. An example would be to pull the currently active

CSM and verify the standby CSM takes over distribution of the CDMA

reference signal.

Redundancy covers many BTS modules. Confirm the redundant options

included in the BTS, and proceed as required. If the BTS has only basic

power supply redundancy, the tests and procedures detailed in the

following tables should be bypassed.

 Table 3-48. Miscellaneous Alarm Tests (BTS Frame)

 Table 3-49. BBX Redundancy Tests (BTS Frame)

 Table 3-50. CSM, GPS, & LFR/HSO Redundancy Alarm Tests

 Table 3-51. LPA Redundancy Test

 Table 3-52. MGLI/GLI Redundancy Test

During redundancy verification of the test, alarms reported by the master

GLI (displayed via the alarm monitor) will also be verified/noted.

Test Equipment

The following pieces of test equipment are required to perform this test:

 LMF

 Communications Test Set

Redundancy/Alarm Test

Perform each of the following tests to verify BTS redundancy and to

confirm all alarms are received and reported by the BTS equipment. The

procedures should be performed on the following modules/boards:

 Power supply/converter modules in all frames

 Distribution shelf modules in the BTS frame

 C–CCP shelf modules in the BTS frame (except MCCs)

 LPA modules in the BTS frame

 AMR Customer defined input/output tests