Design and Performance Study of a Microprocessor-Based Two-Wire Full Duplex Baseband Modem

The design and implementation of a microprocessor-based two-wire full duplex baseband modem is presented. The modem uses the time compression multiplexing technique in implementing a full duplex digital data transmission over a two-wire facility. The line signal used is a baseband bipolar signal. Measurements have been carried out on two prototypes in the lab, and results on the performance of such a modem are reported.