Table 4-27
LED on the panel of the UPEU
Label
Color
State
Meaning
RUN
Green
On
The UPEU is
working properly.
Off
The board is powered
on but is faulty.
Ports
The UPEU has two RS485 signal ports with each transmitting one RS485 signal and two Boolean
signal ports with each transmitting four Boolean signals. When the UPEU is configured in
different slots, the ports on the UPEU have different functions.
the BBU.
Figure 4-20
Slots in the BBU
describes the ports on the panel of the UPEU.
Table 4-28
Description on the ports
Slot
Label
Connecto
r
Quantity
Description
Slot 19
+24 V
or
-48 V
3V3
1
Intro24 V DC or -48 V DC
power
EXT-
ALM0
RJ-45
1
Port for Boolean inputs 0 to 3
EXT-
ALM1
RJ-45
1
Port for Boolean inputs 4 to 7
MON0
RJ-45
1
Port for RS485 input 0
MON1
RJ-45
1
Port for RS485 input 1
Slot 18
+24 V
or
-48 V
3V3
1
Intro24 V DC or -48 V DC
power
EXT-
ALM0
RJ-45
1
Port for Boolean inputs 0 to 3
BTS3900
Hardware Description
4 BTS3900 Components
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
4-27