The Allen-Bradley 1785-KA5 is a Data Highway Plus (DH+) to Data Highway (DH-485) communication adapter module. It enables program uploading and downloading for SLC 500 controllers via a DH+ network and facilitates message communication between DH+ PLC processors and DH-485 devices. This module provides seamless integration across different Allen-Bradley network protocols, making it ideal for mixed network environments requiring reliable data exchange. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 1785-KA5 Module Type Communication Adapter Module Communication Protocols DH+ to DH-485 Primary Functions Program upload/download for SLC 500, messaging between DH+ and DH-485