SMART Current Driver/Repeater KFD0-SCS-Ex1.55, Signal type, Isolated Barriers (K-System), 1-channel isolated barrier, 24 V DC supply (loop powered), Current input/output 4 mA ... 20 mA, HART-IP or transmitter power supply, Low voltage drop, Line fault detection (LFD), Up to SIL 2 acc. to IEC/EN 61508