User's Manual Part 5

CORRECTIVE MAINTENANCE ROI-S05751
5-38
Chart 5-4 (Cont’d)
Step Procedure
Removing OC-3 INTFC, GbE INTFC, CTRL
1 Referring to Chart 2-1, set the IDU to maintenance ON
condition by LCT,
Note: When the CTRL is a failure, replace it with a spare as
explained below.
Note: When the CTRL is replaced without power OFF, refer to the
“Replacing the CTRL Used MMC or LCT”.
2 Turn off the power switch on the MODEM (both MODEM for
1+1 configuration),
3 Disconnect all the cables connected to the module,
4 Loosen two screws on the module, (See Fig. 5-11),
5 Extract the module,
Note: Be careful to avoid catching the module on the cable
when extracting the module. If the module is caught on
the live cables, it may cause a radio link error.
---Maintenance1---
Item Value Setting
Maintenance On
Off On
Set