Huawei BTS3900A Quick Installation page 17

Checking the Power-on Sta
This chapter describes only the power-on check of the equip
base station must be powered on in seven days after installatio
This takes the power-on check procedure in the AC power su
as an example. For details about the procedure in the DC powe
scenario, see the following procedure.
Ensure that the external power supply is normal before powe
all the MCBs in the cabinet are set to OFF.
Start
Power on the BTS3900A
Are the
LEDs on the PSU/PMU
normal?
Yes Yes
Is the voltage
of the EPU DC output
power normal?
Yes
Are the
LEDs on the CMUE
normal?
Yes
Are the
LEDs on the BBU
normal?
Yes
Power on DCDU
Is the voltage of
the DCDU DC output power
normal?
Yes
Are the
LEDs on the CMUE (RFC)
normal?
Yes
Are the
LEDs on the RFU
normal?
Yes
End
Clear the fault
No
No
No
No
Clear the fault
No
No
No
te
pment. The
on.
upply scenario
er supply
er on, and that
PSU
PMU
BBU BBU
DCD DU-11A
CMUE
(RFC)
RFU
1 6
The normal status of the
indicators on the PMU:
RUN indicator: Blinking
ALM indicator: OFF
The normal status of the
indicators on the PSU:
Power indicator: Steady green
Protection indicator: OFF
Fault indicator: OFF
The normal voltage range of the
output power to the EPUis from:
-43.2 V DC to -57 V DC
The normal status of the The normal status of the
indicators on the CMUE:
RUN indicator: Blinking
ALM indicator: OFF
The normal status of the
indicators on the boards of the
BBU:
Indicators on the GTMU and
WMPT
RUN indicator: Blinking g
ALM indicator：ON for 1s and
then OFF
Indicators on the UPEU
RUN indicator: ON
Indicators on the FAN
STATE indicator: Blinking
The normal voltage range of the
DC output power to the DCDU-01
is from:
-38.4 V DC to -57 V DC 38 4 V DC t 57 V DC
The normal status of the
indicators on the RFU:
RUN indicator: Blinking
ALM indicator: ON for 1s and then
OFF
ACT indicator: ON
After the power-on check is
complete, close the cover of
CMUE
the case, and the cabinet
door.
Lock
Locking piece
Tighten the
screw to fix
the locking g
piece to
prevent the
lock from
rusting.