A Four-Channel RS-422 Differential Line Receiver and Transmitter Module

This Quadruple Differential Line Driver module provides four independent differential output channels for driving balanced transmission lines in industrial and embedded applications. Built around the Texas Instruments AM26LS31 IC in a DIP-16 package, the module meets TIA/EIA-422-B and ITU standards. It delivers high-current 3-state outputs capable of driving twisted-pair or parallel-wire transmission paths. In my next project, I will show you how to build the complementary four-channel RS-422 differential line receiver.