User's Manual

ST Engineering Telematics Wireless Ltd
4
2. Installing the MIU
The MIU is mounted either in a pit or in a basement. Pit mounted is depicted in the figure below.
3. Sensor Wire Interface
The MIU has the following Interfaces:
• Water meter reading interface.
• Valve control interface.
The wired encoder is equipped with NICOR connector or bare wire.
4. Technical Data
4.1 Electrical Characteristics
Table 1: Electrical characteristics
Parameter
Value
Internal Battery Voltage
3.6VDC nominal
Internal Battery Capacity
19,000 mAh nominal
4.2 RF Radio Characteristics
Table 2: RF radio characteristics
Parameter
Value
(1)
Unit
Operating Frequency
902…928
MHz
Modulation
LoRa
Maximum Transmitter output power
20
dBm
Maximum Receiver Sensitivity
-125
dBm
Antenna
Internal , omni directional