Table 4-3
Pin assignment for the wires of the +24 V power cable
Pin on the 3V3 Connector Color
Description
A1
Red
+24 V
A2
-
-
A3
Black
GND
4.4 BBU Power cable(OMB)
The BBU power cable in the OMB is used to supply -48 V DC power to the BBU and HEUA.
The DC OMB and AC OMB require different power cables between the BBU and the HEUA.
Appearance
shows the appearance of power cable(AC OMB).
Figure 4-4
Appearance of power cable(AC OMB)
(1) 3V3 power connector for the BBU
(2) H4 connector
(3) 3V3 power connector for the HEUA
shows the appearance of power cable(DC OMB).
BBU3900
Hardware Description
4 BBU3900 Cables
Issue 11 (2010-11-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-7
Summary of Contents for BBU3900
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