2-channel isolated barrier, 24 V DC supply (Power Rail), Current output up to 650 ? load, HART-IP and valve positioner, Line fault detection (LFD), Accuracy 0.1 %, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Housing width: 20 mm, Number of channels: 2-channel, Transfer direction: to the field, HART communication, Test sockets, Safety Integrity Level (SIL): SIL 2, Systematic capability (SC): SC 3, Rated voltage: 19 ... 30 V DC, Signal: 2 x 4 ... 20 mA, Line fault detection