Replacement Of Bts Radio Frequency Fan Module (Brfm) - Huawei Airbridge CBTS3612-800 User Manual

User Manual
Airbridge cBTS3612-800 12-carrier CDMA Base Station
and lower fastening parts on the panel are fastened clockwise. If not, reinstall
them according to module fixture procedures.
If the indicator is still off after the above procedures, then this module is faulty.
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d) If the input green indicator (Vin) and red indicator (Alm) on the module panel are off,
but the output green indicator (Vo) is on, it shows that the module itself can normally
output the power. If there are any spare parts, please replace. If no, this module still
can be used without affecting normal powering performance.
e) If the red alarm indicator (Alm) on the module panel is on, but the output green
indicator (Vo) is off, check in the following order:
Check whether any input over-/under-voltage alarm occurs to the system
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monitor. If there is, the power module red indicator (Alm) normally will be on.
Once the input voltage resumes to normal, the module will work normally.
If the input voltage is normal, then check whether the fan on the PSU has
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stopped running. When the fan has not run for a long time, the module has
excess temperature protection. In this case, this PSU fan must be replaced. If
there is still any alarm after the replacement, it shows that this module has been
damaged and needs replacing.
II. Replacement Details
1)
View the PSU alarm
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 PSU.
2) Unscrew the fastening screws of the PSU and unplug the faulty module from the
power frame
3)
Smoothly push a new module along the guide slot into the location of the faulty
module until the module panel and the edge of the power plug-in frame are
roughly aligned
If the input is normal, the module will start and communicate with BCKM within about
half a minute after being plugged, and both the input green indicator (Vin) and output
green indicator (Vo) on the panel are on.
4)
Make sure that the new module works normally and fasten it.
5)
After replacement
If the PSU is found working normally, related alarms have disappeared and
corresponding recovered alarms occurred, it shows that the replacement is
completed.
2.9 Replacement of BTS Radio Frequency Fan Module
(BRFM)
I. Note
1)
Turn off the power switch in the switch box corresponding to this BRFM. Note
that a group of BHPA, BTRM and BRFM share one power switch.
2)
When a new BRFM is installed, note to put the optical fiber into the gap at the
right lower corner lest the optical fiber be damaged.
II. Replacement Details
1)
Dismount the BRFM and unplug the cables connected with it.
2)
Take apart the damaged fan, but take care to put the screws away for later use.
3)
Install a new fan or a new BBFM and BBFL, and bind the distributions well again.
03Q-0112-20020720-120
2 Board and Part Replacement
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