Figure 2-5 Monitoring Principles Of The Dbs3900 When The Bbu Is Installed In The Apm30 - Huawei BBU3900 Hardware Description

2 DBS3900 Monitoring System
Monitoring Principles of the DBS3900 in the 110 V AC/220 V AC Power Supply
Scenario
The monitoring board varies according to different cabinets. The monitoring boards in the
APM30 or TMC are the APMI, AFMU, and PMU. The monitoring boards in the APM30H
(Ver.A) or TMC11H (Ver.A) are the HEUA, HPMI, and PMU. The monitoring boards in the
APM30H (Ver.B) or TMC1H (Ver.B) are the CMUA, HPMI, and PMU.
Figure 2-5
TMC+1 BBC or with additional 1 APM30+1 BBC when the BBU is installed in the APM30.
The devices monitored by the APMI and AFMU are not shown in the figures. For details, see
the description about the boards.
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Figure 2-5 Monitoring principles of the DBS3900 when the BBU is installed in the APM30

Wiring terminal
for the surge
protection alarm
signal cable on
the DCDU
Door Status
Sensor
Figure 2-6
(Ver.A)+1 TMC11H (Ver.A)+1 BBC/IBBS or with additional 1 APM30H (Ver.A)+1 BBC/
IBBS when the BBU is installed in the APM30H (Ver.A). The devices monitored by the HEUA
and HPMI are not shown in the figures. For details, see the description about the boards.
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2-6
illustrates the monitoring principles of the DBS3900 configured with 1 APM30+1
For details about the functions of monitoring ports on the APMI, see APMI.
For details about the functions of monitoring ports on the AFMU, see AFMU.
For details about the functions of monitoring ports on the PMU, see PMU. The PMU is
configured only in the APM30.
APM30
COM
COM_IN / COM1
APMI
COM_OUT / COM2
ALM0/ALM1 PMU AFMU
MON0 / MON1
TX RX
RS422
Cable to be
BBU
connected on site
Cable connected
before delivery
Monitoring from
source to destination
TMC BBC
Door Status
APMI
Sensor
AFMU
illustrates the monitoring principles of the DBS3900 configured with 1 APM30H
For details about the functions of monitoring ports on the HEUA, see HEUA.
For details about the functions of monitoring ports on the HPMI, see HPMI.
For details about the functions of monitoring ports on the PMU, see PMU. The PMU is
configured only in the APM30H (Ver.A).
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
APM30
APMI
PMU
BBU
TMC BBC
Door Status
APMI
Sensor
AFMU
Wiring terminal
for the surge
protection alarm
signal cable on
the DCDU
Door Status
Sensor
Hardware Description
APM30
APMI
AFMU AFMU
PMU
BBC
Door Status
Sensor
Issue 11 (2010-11-10)
BBU3900