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, Sink or source mode, Line fault detection (LFD), Housing width 12.5 mm, Up to SIL 3 acc. to IEC/EN 61508, Housing width: 12.5 mm, Number of channels: 1-channel, HART communication, Safety Integrity Level (SIL): SIL 3, Systematic capability (SC): SC 3, Rated voltage: 19 ... 30 V DC, Field device: 2-wire transmitter, Field device [2]: current source