User's Manual Part 3

RBS 2308 and RBS 2309 User’s Guide
Related RU
The RU listed below
has higher priority than the RU described in this section. If
it is present, then
go to the related section before handling this RU.
• If “SO CF RU:34/ IDB” appears in the OMT, then proceed with Section
10.3.8 SO CF RU:34/ IDB on page 187
Displaying Fault Information
Display fault information according to Section 10.3.1 Reading Fault Status
on page 177.
Perform the following actions step-by-step until the fault ceases:
Reading ARAE Alarm Status
Note: This step is only valid if “SO CF EC2:13/ Auxiliary equipment fault”
appears in the OMT.
1. In the Configuration menu, select Read IDB and click Yes.
2. In the Maintenance menu, select Monitor.
3. Select ARAE Alarm Status.
4. In the Available monitors box, select “Alarm inlets” and click → to add it
in the Monitors to start box.
5. Click Start Monitor.
6. Check the Display Status window to see which ARAE alarm are active.
7. Check that the ARAE fault is c orrectly defined in the IDB.
8. Check the cable to the equipment supervised by the ARAE alarm.
9. Replace the faulty equipment supervised by that alarm.
Checking RX Diversity
10. Ensure that the cell is configured, in the BSC, with the correct diversity
(RXD).
11. Confirm that radio cables are connected to the correct RRUs and antennas.
Performing DTF Test
12. Disconnect the faulty feeder and locate the fault, by performing a Distance
To Fault (DTF) test. For more information, see chapter Antenna System
Tests in this manual.
188
EN/LZT 720 0027 Uen R8A 2006-06-27