Honeywell 900C73R-0000-42 I/O Scanner ModuleDescription The Honeywell 900C73R 0000 42 is a redundant I O scanner module designed for ControlEdge HC900 systems. It ensures continuous communication with remote I O racks by supporting dual Ethernet paths and automatic failover. Specifications Model: 900C73R 0000 42 System Compatibility: ControlEdge HC900 Function: Redundant I O scanner module Operating Voltage: 5 V DC Maximum Current Draw: 770 mA Communication Ports: 2 10 100 Base T Ethernet