Cable
One End
The Other End
Connector
Installation
Position
Connector
Installation
Position
SMA male
connector
BBU/WMPT/
GPS
N-type female
connector
GPS surge
protector
4.2 PGND Cable
The PGND cable ensures the grounding of the BBU.
Structure
The green and yellow PGND cable is a single cable with a cross-sectional area of 6 mm
2
. Both
ends of the cable are OT terminals. If you prepare the cable by yourself, it is recommended that
you use a copper-based cable with a minimum cross-sectional area of 6 mm
2
.
shows the PGND cable.
Figure 4-1
PGND cable
(1) OT terminal (6 mm
2
, M4)
4.3 BBU Power Cable
This section describes the BBU power cable. Either -48 V power cable or +24 V power cable
can be used, depending on the power supply scenario.
Exterior
The BBU power cable depends on the type of the cabinet containing the BBU, because different
types of cabinet use different power supplies.
When the power supply device is the DCDU or PDU, the BBU power cable has a 3V3 connector
at one end and bare wires at the other end. Based on the connector of the power distribution
device, appropriate terminals are added to the bare wire end on site.
shows the BBU
power cable with OT terminals at the bare wire end as an example.
BBU3900
Hardware Description
4 BBU3900 Cables
Issue 11 (2010-11-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-5
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