Table 4-1 Functions Of The Monitoring System - Huawei BTS3900E GSM User Manual

4 Monitoring Scheme of the BTS3900E
Functions of the monitoring system
Table 4-1

Table 4-1 Functions of the monitoring system

Module
PMU
Temperature control unit (DTCU)
l
l
EMU
4-2
describes the functions of the BTS3900E monitoring system.
APM30: AFMU
APM30H: HEUA
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Copyright © Huawei Technologies Co., Ltd.
Function
Communicating with the BTS3900E
l
through the RS232/RS422 serial port
Managing power system and battery
l
charge/discharge
Detecting and reporting water alarms,
l
smoke alarms, door status alarms, and
standby Boolean value alarms, and
reporting ambient humidity and
temperature, battery temperature, and
standby analog values
Detecting power distribution and reporting
l
related alarms
AFMU
Supplying DC power to the APMI/AFMU
l
through the DC power port
Supplying DC power to the two fans at the
l
top of the cabinet and reporting the alarms
of the fans
Reporting the alarms of the internal
l
ambient temperature sensor, air inlet
temperature sensor, and air outlet
temperature sensor
The alarm signals of the AFMU is
l
transmitted to the APMI through the signal
transfer cable and then is reported to the
main control board.
HEUA
Monitoring the fans and reporting the
l
related alarms
Communicating with the BTS3900E
l
through the RS485 port, through which
two-channel RS485 signals are transmitted
Detecting the input voltage
l
Providing a port for connecting with the 12
l
V DC or 24 V DC temperature and
humidity sensor
Providing ports for Boolean signal inputs
l
of dry contact type and of OC type
Providing ports for controlling six external
l
Boolean outputs of relay node type
BTS3900E GSM
User Guide
Issue 01 (2010-01-15)