SMART Transmitter Power Supply KCD2-STC-Ex1, Signal type, Isolated Barriers (K-System), 1-channel isolated barrier, 24 V DC supply (Power Rail), Input for 2-wire SMART transmitters and current sources, Output for 4 mA ... 20 mA or 1 V ... 5 V, Housing width 12.5 mm, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Line fault detection (LFD)