The Gridcomm GC9200 is a DIN rail power line communication (PLC) modem. It can be adaptively and automatically configured in different power line environments to achieve extremely reliable and robust communication functions in low-voltage power grids. The DIN rail PLC modem uses the industry-leading GridComm GC2200 OFDMA (Orthogonal Frequency Division Multiple Access) power line communication transceiver. The GC9200 supports the transparent transmission protocol, and only needs to send data to the RS485 interface to the receiving point. The GC9200 has 18 independent channels that can be configured in different frequency levels from 5KHz to 500KHz and run on up to 54 carrier frequencies via 1BPSK, 3BPSK or 3QPSK.