Huawei BTS3900L Installation Manual page 117

BTS3900L (Ver.C)
Installation Guide
Table 13-1
Table 13-1 Power switches on the DCDU-11A
Power switches on the DCDU-11A
LOAD0
LOAD1
LOAD2
LOAD3
LOAD4
LOAD5
LOAD6
LOAD7
LOAD8
LOAD9
Table 13-2
Table 13-2 Circuit breakers on the DCDU-11B panel
Circuit Breaker on the DCDU-11B Panel Module
LOAD0 to LOAD5
LOAD6 to LOAD9
Procedure
Step 1 Turn on the switch of the external power supply to power on the BTS3900L.
Step 2 Check whether the input voltage of the DCDU in the BTS3900L is normal.
If
The input voltage of the DCDU is not in the
range from -38.4 V DC to -57 V DC
Issue 07 (2013-11-08)
describes the power switches on the DCDU-11A.
NOTE
The numbers of the slots where the RFUs are installed are 0 to 5 from left to right.
lists the circuit breakers on the DCDU-11B panel.
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13 Powering On the BTS3900L
Module
RFU in slot 0
RFU in slot 1
RFU in slot 2
RFU in slot 3
RFU in slot 4
RFU in slot 5
FAN module
BBU
BBU
Reserved
RRUs
Reserved
Then
Power supply to the cabinet fails. Go to
3.
Step
108