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Table 5-27: Alarm List (Radio Interface)
5.3.
Replacing Faulty Parts
When replacing parts you must comply with the safety regulation as described in Chapter 6.
After having replaced a faulty unit with a spare one, it is necessary to check that the previous
alarm indications disappear and service is restored.
In RADIOLINK EVOLUTION depending on configuration the following parts can be replaced to remove a fault,
depending on the localization of the fault:
- ODU
- PSE/W
- PSM (Power Supply Module inside PSE/W)
- PSE/L
5.3.1
Replacing the ODU
When required the ODU can be replaced following the steps here indicated :
1)
Take from the stock a spare unit with the same P/N of the unit to replace
2)
If the ODU is part of a Protection Group (1+1 HSB system) put the system in a Forced
status:
a) To replace the ODU Main, set in its CT
System
Settings→Protection
window (par.
2.11) the field
Forced Mode
to
Lockout
(this operation could not be possible if the
