Pgnd Cable; Bbu Power Cable; Figure 4-1 Pgnd Cable - Huawei BBU3900 Hardware Description

BBU3900
Hardware Description
Cable
4.17 GPS
Clock Signal
Cable

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
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
Figure 4-1

Figure 4-1 PGND cable

(1) OT terminal (6 mm

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.
power cable with OT terminals at the bare wire end as an example.
Issue 11 (2010-11-10)
One End
Connector
SMA male
connector
shows the PGND cable.
2
, M4)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
The Other End
Installation Connector
Position
BBU/WMPT/ N-type female
GPS connector
4 BBU3900 Cables
Installation
Position
GPS surge
protector
2
. Both
2
.
Figure 4-2 shows the BBU
4-5