Replacement Of Bts High Power Amplification Module (Bhpa); Replacement Of Bts Transceiver Module (Btrm) - Huawei Airbridge CBTS3612-800 User Manual

User Manual
Airbridge cBTS3612-800 12-carrier CDMA Base Station
4)
Assemble and fasten the BRFM.
5) If the BRFM is found working normally, related alarms have disappeared and
corresponding recovered alarms occurred, it shows that the replacement is
completed.
2.10 Replacement of BTS High Power Amplification Module
(BHPA)
I. Note
1)
The replacement of a BHPA will interrupt the service of the adjacent BTRM.
2)
Turn off the power switch in the switch box corresponding to this BHPA. Note
that a group of BHPA, BTRM and BRFM share one power switch.
3)
Before the replacement of a BHPA, take apart the corollary BRFM. When this
BRFM is installed again, note to put the optical fiber into the gap at the right
lower corner lest the optical fiber should be damaged.
4) The power amplification module should be anti-static, therefore operations
should be made strictly based on operation procedures. That is to say, wear an
anti-static wrist strap and gloves and make the grounding terminal well grounded
to prevent any static electricity damaging the module.
II. Replacement Details
1)
View the BHPA alarm and block the corresponding BTRM
Connect a portable computer with the local-end maintenance software with the
Ethernet interface of a base station BCKM and switch on Telnet to log on to the base
station. Then, view and record the fault type of BHPA.
For a BTRM which will interrupt services, execute the command of sector carrier
blocking or shut off its power.
2)
Remove the corollary BRFM of the faulty BHPA
3)
Unplug the faulty BHPA
4)
Plug and fasten the new BHPA and then bend its handle ring so as to install the
BRFM.
5) Install and fasten the BRFM.
6)
Change the management state of the blocked BTRM
Unblock the blocked BTRM.
If you turn off the power switch of a corresponding BTRM in advance instead of
blocking the BTRM, then turn on the corresponding switch in this step.
7)
After replacement
If the BHPA is found working normally, related alarms have disappeared and
corresponding recovered alarms occurred, it shows that the replacement is
completed.

2.11 Replacement of BTS Transceiver Module (BTRM)

I. Note
1)
The replacement of a BTRM will interrupt any service it processes.
2)
Turn off the power switch in the switch box corresponding to this BTRM. Note
that a group of BHPA, BTRM and BRFM share one power switch.
03Q-0112-20020720-120
2 Board and Part Replacement
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