Huawei BBU3900 - Figure 2-5 Monitoring Principles of the DBS3900 When the BBU Is Installed in the APM30

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 illustrates the monitoring principles of the DBS3900 configured with 1 APM30+1
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.
l For details about the functions of monitoring ports on the APMI, see APMI.
l For details about the functions of monitoring ports on the AFMU, see AFMU.
l For details about the functions of monitoring ports on the PMU, see PMU. The PMU is
configured only in the APM30.
Figure 2-5 Monitoring principles of the DBS3900 when the BBU is installed in the APM30
APMI
APMI
PMU
AFMU
AFMU
BBC BBC
APM30
APM30
TMC
BBU
APMI
PMU
AFMU
Door Status
Sensor
Door Status
Sensor
Door Status
Sensor
Door Status
Sensor
Door Status
Sensor
APMI
PMU
AFMU
AFMU
BBC
APM30
TMC
COM_IN / COM1
COM_OUT / COM2
COM
MON0 / MON1
ALM0/ALM1
TX RX
RS422
BBU
Wiring terminal
for the surge
protection alarm
signal cable on
the DCDU
Wiring terminal
for the surge
protection alarm
signal cable on
the DCDU
APMI
Cable to be
connected on site
Cable connected
before delivery
Monitoring from
source to destination
Figure 2-6 illustrates the monitoring principles of the DBS3900 configured with 1 APM30H
(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.
l For details about the functions of monitoring ports on the HEUA, see HEUA.
l For details about the functions of monitoring ports on the HPMI, see HPMI.
l For details about the functions of monitoring ports on the PMU, see PMU. The PMU is
configured only in the APM30H (Ver.A).
2 DBS3900 Monitoring System
BBU3900
Hardware Description
2-6 Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 11 (2010-11-10)