Huawei BTS3900C Hardware Description page 105

BTS3900C (Ver.C)
Hardware Description
Power Distribution Scheme in the 110 V AC or 220 V AC Power Supply Scenario
When 110 V AC or 220 V AC power is supplied, the ETP48100-A1 in the OMB converts the
one AC input into two DC outputs.
Figure 4-1
V AC power.
When 220 V AC single-phase power is used, the live wire must be connected to a circuit breaker.
Figure 4-1 Power distribution scheme for a cabinet supplied with 110 V AC or 220 V AC power
Table 4-3 Specifications of fuses when 110 V AC or 220 V AC power is supplied
Input Power
220 V AC single-phase
110 V AC dual-live-wire
Power Distribution Scheme in the -48 V DC Power Supply Scenario
When -48 V DC power is supplied, the PDU10D in the OMB converts the one DC input into
several DC outputs and distributes the DC power to modules such as the BBU, HEUB, and
RRUs.
Figure 4-2
Table 4-4
Issue 03 (2013-05-27)
shows the power distribution scheme for a cabinet supplied with 110 V AC or 220
Table 4-3 lists the specifications of fuses in the base station.
NOTE
shows the power distribution scheme for a cabinet supplied with -48 V DC power.
lists the specifications of fuses in the base station.
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Specifications of a circuit breaker
l RRU: 1x30 A
l BBU: 1x30 A
l HEUB: 1x30 A
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