User Manual

AS4000 Operations and Maintenance
Section
605-0000-431
6
. Issue 1.6. Date3/2/99
DLP-024
Page 55 of 60 © Copyright Airspan Communications Corporation 1999
REPLACING THE DROP CABLE.
STEP PROCEDURE
1. Removal and replacement of faulty drop cable
1. Switch off power at the mains socket.
2. Disconnect Drop Cable wiring from Junction Box
3. Remove connector from CRU by turning anti-clockwise (If the CRU has to be moved in
order to release the connector see DLP-016 for procedure to remove connector)
4. Cut away any tie wraps securing the cable and remove drop cable from cleats.
5. Run new drop cable and secure using cleats and tie wraps.
6. Connect the connector to the CRU ensuring that the original orientation is maintained.
7. Cut drop cable to length and strip and connect wires to Junction Box or PSU. as detailed
below.
2. Drop Cable Termination at the PSU Type 1
At the Junction Box terminate the wires of the drop cable as shown in and the tables
below.
JACK
SOCKET
1
2
3
4
5
6
12
11
10
9
8
7
Drop Cable
from CRU
DC Output
Cable from
AC PSU
To
STMON
Cable to
NTU
Figure 2-2. Junction Box Termination (Type 1 PSU)