Allen-Bradley 1203-GK2 SER.B Communication Module for AC Drive

Manufacturer: Allen-Bradley / Rockwell Automation Catalog Number: 1203-GK2 Series: B Product Type: Communication Interface Module Communication Protocol: DF1 protocol (RS-232/RS-422 serial communication) Purpose: Interface between Allen-Bradley drives (e.g., 1336 PLUS, 1336 IMPACT) and external devices such as PLCs, HMIs, or computers Power Supply: 24V DC supplied from the host drive Baud Rates Supported: 1,200 to 19,200 bps (configurable) Communication Ports: RS-232 port (DB9, DTE type) RS-422/485 (terminal block, isolated differential signals) Mounting Type: Internal (installed in the drive’s communication port) Indicators: LED status indicators for module and communication diagnostics Typical Applications: Upload/download drive parameters Drive control and monitoring Integrating drives into DF1-based PLC networks Compatible Drives: Most Allen-Bradley 1336 series AC drives Compliance: UL, cUL, CE (depending on vintage) 180 MA