Transfer element. 1-wire, spring terminal connection. Isolated FTA (Field Termination Connectors) for digital input/output of Honeywell C300. Isolated interfaces (FTA) for connection to the digital IOTAs (input/output connections) of Honeywell C300. Unique labeling: same connector and orientation for FTA and IOTA. The LED indicator serves to display the switching status. High current switching capacity in a compact design. Option to power the IOTA via the FTA (protected by a fuse). Screw or spring terminal connection.