Antenna Subsystem; Power Supply And Environment Monitoring Subsystem - Huawei Airbridge BTS3606A Technical Manual

Technical Manual
Airbridge BTS3606A CDMA Base Station
3) Performs noise factor– adjustable down-conversion, and channel-selective
filtering.
4) Finally sends the signals to the baseband subsystem.

3.3.3 Antenna Subsystem

The antenna subsystem of the BTS3606A includes the RF antenna and the satellite
synchronization antenna.
RF antenna
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This part covers the transmitting and receiving antennas, feeders, antenna
lightning arrester (optional), and tower mounted amplifier (optional). It transmits
and receives signals on the Um interface.
Satellite synchronization antenna
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This part includes the satellite signal receiving antenna, feeder, and lightning
arrester. It receives synchronization signals from the satellites (GPS or GLONASS)
to provide precise clock source for the BTS.

3.3.4 Power Supply and Environment Monitoring Subsystem

The power supply and environment monitoring subsystem includes the power supply,
environment monitoring part, and the temperature controller.
Power supply
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The power supply consists of:
--AC distribution unit
--DC distribution unit
--Power Supply Units (PSUs, including PSUAC/DC and PSUDC/DC)
--Power Management Unit (PMU)
--Battery group
--Management unit of the battery group
The PSUs work in N+1 redundancy mode. If any PSU fails, an alarm will be
reported. The PSUs support online insertion and removal.
Environment monitoring part
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The environment monitoring part includes the PMU and sensors. The PMU
collects the environment variables such as temperature, humidity, smoke, water
and access control from the sensors, and reports them to the BCKM of the BTS.
Based on the preset configuration, the BTS performs operations and reports the
information to the OMC.
Temperature controller
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Chapter 3 Product Architecture
3-5
System Description