Huawei BBU3900 - Fan; Figure 3-11 Panel of the FAN Unit; Table 3-11 Ports on the Wbbpd

The WBBPd has six ports. Table 3-11 describes the ports on the WBBPd.
Table 3-11 Ports on the WBBPd
Label Connector Type Description
CPRI0, CPRI1, CPRI2
CPRI3/EIH0, CPRI4/EIH1,
CPRI5/EIH2
SFP female Data transmission port
between the BBU and the RF
module, supporting input and
output of optical and
electrical signals
NOTE
The six CPRI ports are available on the WBBPd configured only in slot 2 or 3, and the CPRI ports are not
available on the WBBPd configured in other port.
3.2.4 FAN
The FAN unit of the BBU3900 controls the fan speed, monitors the temperature of the FAN
unit, and dissipates the heat in the BBU.
Panel
Figure 3-11 shows the panel of the FAN unit.
Figure 3-11 Panel of the FAN unit
Functions
The FAN unit performs the following functions:
l Controls the fan speed.
l Reports the fan status to the main control board.
l Monitors the temperature of the air inlets.
l Dissipates the heat.
BBU3900
Hardware Description 3 BBU3900 Equipment
Issue 11 (2010-11-10) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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