User's Manual

Table Of Contents
Troubleshooting: RFDS – continued
6-30 1X SC 4812T Lite BTS Optimization/ATP FEB 2005
PRELIMINARY
All Tests Fail on a Single
Antenna
If all path failures are on one Antenna Port (Forward or Reflected),
perform the checks in Table 6-32.
Table 6-32: RFDS Fault Isolation – All Tests Fail on Single Antenna Path Troubleshooting Procedure
Step Action
1 Visually inspect the frame internal RFDS Cabling to the suspect TRDC or DRDC.
2 Verify that the Forward and Reflected Ports connect to the correct RFDS Antenna Select Unit
positions on the RFDS ASU Card.
Refer to the RFDS Installation Manual for details.
3 Replace the RFDS with a known–good unit.
4 Replace the RF Cables between the affected TRDC or DRDC and the RFDS.
6