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Description
Huawei DCDU-12B -48 V DC Power Direct Current Distribution Unit
A direct current distribution unit-12B (DCDU-12B) provides -48 V DC power for RRUs and other components in a cabinet. A DCDU-12B is 1U high and can be installed in any of the following cabinets: BTS3900 (Ver.D)/BTS3900L (Ver.D)/BTS3900 (Ver.D_A)/BTS3900 (Ver.D_B)/BTS3900L (Ver.D_B)/RFC (Ver.D)/RFC (Ver.E)/RFC (Ver.D_A1)/RFC (Ver.D_A2)/RFC (Ver.D_B)/BTS3012 (Ver.D_Z)/BTS3012AE (Ver.D_Z)/TMC11H (Ver.D)/TMC11H (Ver.E)/BTS3900AL (Ver.A)/IMB03/IMB05/BTS3900 (Ver.E_A~D)/BTS3900L (Ver.E_B~D)/BTS5900 (Ver.A)/BTS5900L (Ver.A)/ILC29 (Ver.E)/APM5930(DC)/APM5900H/APM5900H-L/IMS06.
Function
The DCDU-12B provides ten -48 V DC outputs using the same fuse configurations to meet the power distribution requirements of indoor and outdoor macro base stations, micro base stations, and distributed base stations.
Port
The following figure shows the ports on a DCDU-12B.
|
No. |
Port/Terminal |
Silkscreen |
Connector and Cable |
Description |
|---|---|---|---|---|
|
(1) |
DC input terminals |
NEG(-) |
Two pairs of one-hole OT terminals (M6). One pair of power cables with a maximum cross-sectional area of 35 mm2 (0.054 in.2) or two pairs of power cables with a maximum cross-sectional area of 16 mm2 (0.025 in.2) are supported. |
Negative input wiring terminal |
|
RTN(+) |
Positive input wiring terminal |
|||
|
(2) |
Fuse block |
LOAD0 to LOAD9 |
– |
It controls the LOAD0 to LOAD9 ports, and therefore controls the power supply to modules such as BBUs, fan assemblies, and transmission equipment. The indicator on a fuse block indicates the status of the fuse.
|
|
(3) |
DC output terminalsa |
LOAD0 to LOAD9 |
|
– |
|
(4) |
Spare fuse box |
– |
– |
It contains three 30 A spare fuses. |
|
a: EPC4 and EPC5/EPC11 connectors must be connected to cables onsite. |
||||
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