SMART Transmitter Power Supply KFD2-STC5-Ex2, Signal type, Isolated Barriers (K-System), 2-channel isolated barrier, 24 V DC supply (Power Rail), Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources, Output 4 mA ... 20 mA current sink/current source, Terminals with test points, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Up to SIL 2 (SC 3) acc. to IEC/EN 61508