User's Manual Part 3

RBS 2308 and RBS 2309 User’s Guide
• If “SO CF RU:0/ IXU”
appears in the OMT, then proceed with Section
10.3.2 SO C F RU:0/ I
XU on page 179
Displaying Fault
Information
Display fault inf
ormation according to Section 10.3.1 Reading Fault Status
on page 177.
Perform the follo
wing actions step-by-step until the fault ceases:
Precondition
Before starting
this procedure, ensure that the GPS system has no fault and is
properly instal
led.
Check IXU GPS Cab
le
1. Check that the IX
U GPS cable is free from damage. Replace if needed.
2. Check that the IX
U GPS cable is correctly connected to the GPS/AUX
port on the IXU.
3. If an EBB-01 is u
sed, then check that the GPS and GPS/AUX cables on
the EBB-01 are c
orrectly connected.
Localizing Fau
lt on GPS Receiver
4. Check all cable
s and equipment (including the GPS receiver) connected to
the signal cha
in between the IXU GPS cable and the GPS receiver.
5. Check the powe
r supply to the GPS by checking the DC indicator in the
OVP.
Refer to manuf
acturer’s documentation to perform fault localization on the
GPS receiver
.
Checking DC S
upply
6. Check that bo
th the −48 V LINK cable and the termination block are
correctly co
nnected, as shown in the figures below.
190
EN/LZT 720 0027 Uen R8A 2006-06-27