Environment Monitoring; Structure Of Monitoring System - Huawei Airbridge BTS3612A-1900 Technical Manual

Technical Manual
Airbridge BTS3612A CDMA Base Station

5.3 Environment Monitoring

5.3.1 Structure of Monitoring System

As an outdoor BTS, the BTS3612A provides comprehensive power & environment
monitoring functions, which are implemented through sensors, TCU and PMU. The
temperature inside the cabinet is controlled by an independent temperature control
device.
The monitoring system is shown in Figure 5-6.
Smoke
sensor
Temp
sensor
Water
sensor
Door status
sensor
TCU
Figure 5-6 Monitoring system of BTS3612A
I. Monitoring functions of PMU
The PMU monitors on a real-time basis control value signals, Boolean value signals,
current/voltage analog signals and environment value analog signals.
Control value signals include:
Equal floating charge and current-limiting control of batteries
Protective load connect/disconnect of batteries
Boolean value signals include:
Air conditioner / heat exchanger failure alarm.
Chapter 5 Power & Environment Monitoring Subsystem
220/110VAC
PSU
PSU
Power control & battery
management
Environment
PMU
monitoring
7 reserved
boolean value
5-6
-48V Busbar
Protector
Current
measurement
Temp
measurement
RS485
Temperature
control
Air switch
fuse
detector
System Principle
Battery
To BCKM of
baseband
subsystem