Allen-Bradley 1719-CF4H Compact IO PLC Module

Allen-Bradley 1719-CF4H Ex I/O is a four-channel HART analog configurable module for the 1719 Ex I/O family, designed for hazardous locations with intrinsic safety and suitable for Zone 2 or Class I, Division 2 installations or safe areas. Each channel can be configured as an analog input for two-wire HART transmitters or as an analog output to drive proportional valves, I/P converters, or local indicators. The module includes the Ex I/O 8-pole TB8 terminal block and relies on the chassis backplane for power, keeping supply electronics contained within the rack. The 1719-CF4H uses a 21.5 V supply circuit at approximately 4 mA and provides line fault detection with one LED per channel for self-monitoring.