User Manual

CMIU Installation and Maintenance Guide 1
1 Product Description
This section provides a general description of the Neptune Technology Group cellular
meter interface unit (subsequently referred to as CMIU).
The CMIU by Neptune is a compact electronic device that collects meter reading data
from an encoder register. It then transmits the data for collection. The collected data is
stored and downloaded into the utility billing system for processing.
The CMIU is easily installed and operates within the cellular frequencies.
Figure 1 Cellular MIU
The CMIU does require field programming.
Product Description
CMIU Programming
The CMIU does require field programming.
Low Battery Emissions
The CMIU stops RF transmissions when the battery discharges below normal the
operating voltage.