Monitoring Principles Of The Cabinets; Figure 2-4 Slot Assignment For The Upeu And Ueiu; Figure 3-1 Bbu3900; Table 2-3 Ports On The Upeu And Ueiu - Huawei BBU3900 Hardware Description

BBU3900
Hardware Description

Figure 2-4 Slot assignment for the UPEU and UEIU

Table 2-3

Table 2-3 Ports on the UPEU and UEIU

Slot
Slot19
Slot18

2.3 Monitoring Principles of the Cabinets

The DBS3900 cabinet is monitored by various boards. The boards collect alarms from sensors
and fans, and then transmit the alarm signals to the MON port on the BBU through the RS485
serial bus. In this manner, the boards monitor the cabinet.
Issue 11 (2010-11-10)
lists the ports on the UPEU and UEIU.
Board Label
UPEU EXT-ALM0
EXT-ALM1
MON0
MON1
UEIU EXT-ALM0
(optional)
EXT-ALM1
MON0
MON1
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
2 DBS3900 Monitoring System
Connector Quantity
RJ-45 1
connector
RJ-45 1
connector
RJ-45 1
connector
RJ-45 1
connector
RJ-45 1
connector
RJ-45 1
connector
RJ-45 1
connector
RJ-45 1
connector
Description
Port for
Boolean
inputs 8 to 11
Port for
Boolean
inputs 12 to
15
Port for
RS485 input
0
Port for
RS485 input
1
Port for
Boolean
inputs 0 to 3
Port for
Boolean
inputs 4 to 7
Port for
RS485 input
0
Port for
RS485 input
1
2-5