Figure 3-33
Slot assignment for the UPEU and UEIU
lists the ports on the UPEU and UEIU.
Table 3-24
Ports on the UPEU and UEIU
Slot
Board
Port
Connector Quantity
Description
Slot19
UPEU
EXT-ALM0
RJ-45
connector
1
Port for
Boolean
inputs 8 to 11
EXT-ALM1
RJ-45
connector
1
Port for
Boolean
inputs 12 to
15
MON0
RJ-45
connector
1
Port for
RS485 input
0
MON1
RJ-45
connector
1
Port for
RS485 input
1
Slot18
UEIU
(optional)
EXT-ALM0
RJ-45
connector
1
Port for
Boolean
inputs 0 to 3
EXT-ALM1
RJ-45
connector
1
Port for
Boolean
inputs 4 to 7
MON0
RJ-45
connector
1
Port for
RS485 input
0
MON1
RJ-45
connector
1
Port for
RS485 input
1
3.6.2 Monitoring Principles of the Cabinet
The BTS3900 cabinet is managed by the monitoring boards, such as the FMU and PMU. A
monitoring board is connected to the MON port on the BBU. It collects the alarms of all
components and reports the alarms to the BBU by using the RS485 serial bus.
BTS3900
Hardware Description
3 BTS3900 Hardware Configuration
Issue 04 (2011-02-15)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
3-37