Model 531-8 - Digital Input-Output Unit Brochure

The 531-8 Digital I/O replaces copper wire and galvanically isolates, protects, and monitors contacts remotely (such as close-coil, local, or remote trip) and supports telemeter revenue meter pulses over large distances. The Model 531-8 is simple to install due to its removable plugin screw terminals. The unit does not require a PC but only a screwdriver to connect the inputs and outputs.