HUAWEI WD2M00EEUM00 EMUB WD2G1EMUB 02310UWT Environment Monitoring Unit

Power input

• An EMUB provides a power input port and can be supplied with -48 V DCpower. The voltage can range from -36 V DC to -72 V DC.
• An EMUB can detect input voltage.

Environment monitoring

• An EMUB provides one port to connect a current-type humidity and temperature sensor working in the voltage of +12 V DC or +24 V DC and the current range of 4 mA to 20 mA. The temperature monitoring scope of the sensor is from -20°C to +80°C (-4°F to 176°F).
• An EMUB provides one port for monitoring four different analog signal inputs. If a voltage-type sensor is connected to the EMUB, the voltage ranges from 0 V to 5 V. If a current-type sensor is connected to the EMUB, the current ranges from 4 mA to 20 mA.
• The input signal type on the EMUB side is set by the DIP switch according to the input signal type set on the eNodeB side.
• An EMUB provides a +24 V DC port to connect a smoke sensor, a +24 V DC or +12 V DC port to connect a water sensor, a +24 V DC or +12 V DC port to connect an infrared sensor, and a dry contact-type port to connect a door status sensor. These ports meet the monitoring requirements of the system.

Boolean signal monitoring

An EMUB provides ports for monitoring 32 Boolean signal inputs of the dry contact type and open collector (OC) type.

Relay node control

An EMUB provides six output control ports for external Boolean signals of the relay node type.

Communication function

An EMUB provides two RS-485 ports for the communication between the EMUB and the base station.