Allen-Bradley 1775-KA PLC-3 Communication Module

The Allen-Bradley 1775-KA PLC-3 Data Highway Communication Adapter Module is a remanufactured Data Highway interface that provides a dedicated communication link between PLC-3 processors and the Data Highway network. Designed for use with PLC-3 and PLC-5 systems, the 1775-KA enables data transfer across DH segments and interoperability with other DH-compatible modules, supporting the Data Highway protocol that connected multiple controllers and peripheral devices in legacy Allen-Bradley automation networks. As a remanufactured replacement option for legacy PLC-3 installations, this module delivers the DH interface needed to maintain networked communications within the PLC-3/PLC-5 ecosystem.