Automatic Meter Reading - Coltecom Enterprises Corp

Automatic Meter Reading

They are major three topologies for AMR systems:

1. Each meter is connecting to a M1000 smart GPRS modem via RS232 by using CSD (data call);

2. Each meter is connecting to a M1000 smart GPRS modem via RS232 by using GPRS (meter control the modem via AT commands);

3. Each meter is connecting to a Data Concentration Units (DCU), which may support up to 32 meters, and each DCU is connecting to a M1000 Pro serial to GPRS gateway via RS485 by using GPRS (transparent transmit serial data to billing center automatically).