Figure 3-13 Panel Of The Upeub; Figure 3-14 Slots In The Bbu; Table 3-13 Led On The Upeu And Its Status - Huawei BBU3900 Hardware Description

BBU3900
Hardware Description

Figure 3-13 Panel of the UPEUB

(1) Power switch of the BBU
Functions
The UPEU performs the following functions:
l
l
l
l
LEDs
The UPEU has one LED that indicates the operating status of the board.
the LED and its status.

Table 3-13 LED on the UPEU and its status

Label
RUN
Ports
The UPEU provides two RS485 ports and two ports for eight Boolean signals. When configured
in different slots, the ports on the UPEU have different functions.
in the BBU.

Figure 3-14 Slots in the BBU

Issue 11 (2010-11-10)
Converts -48 V DC or +24 V DC power to +12 V DC power that is applicable to the boards
Provides two ports for two RS485 inputs and two ports for eight Boolean signals
Provides reverse connection protection for power cable connectors
If two UPEUs are configured, two power inputs are required. The UPEU in slot 19 works
in active mode, and the UPEU in slot 18 works in standby mode
Color
Green
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Status
On
Off
Figure 3-14
3 BBU3900 Equipment
Table 3-13 describes
Description
The UPEU is
operational.
Input power is
unavailable or the
board is faulty.
shows the slots
3-15