excom® is a remote I/O system for use in explosion hazardous areas. It comprises bus-compatible remote I/Os in IP20 for the connection of binary and analog intrinsically safe field devices. The specific Ex approval of the system permits the use in zones 1 and 2. The field circuits are approved for zone 0.

The system consists of power supplies, gateways, I/O modules as well as module racks to accommodate all components. The backplane is integrated in the module rack. The backplane is needed for power supply, data transport and contains the connection plane for the field devices. The power supply modules ensure the supply of the entire systems (with MT18 up to 2 power supplies, redundant operation).