VTAC RECOMM-H485 RS485 HVAC Serial Communication Adapter Card

The VTAC RECOMM-H485 RS-485 HVAC Adapter Card is a compact serial interface that enables reliable RS-485 data exchange between HVAC controllers, drives, and building automation equipment. With Manufacturer Part Number RECOMM-H485 and Version V1.004 from VTAC, this PCB-style adapter card is designed for installation in HVAC control panels, automation systems, and industrial control equipment to expand the serial communication network within building management networks. As a communication interface expansion, it functions as a Serial Communication Network Adapter suitable for HVAC controllers and industrial automation equipment, and common replacements include VTAC RECOMM-H485 V1.005 Adapter Card and Allen-Bradley 20-COMM-H.