2-channel isolated barrier, 24 V DC supply (Power Rail), Analog input (AI), Analog output (AO), Operates as transmitter power supply or current driver, Housing width 12.5 mm, Up to SIL 2 (SC 3) acc. to IEC/EN 61508, Housing width: 12.5 mm, Number of channels: 2-channel, HART communication, Test sockets, Safety Integrity Level (SIL): SIL 2, Systematic capability (SC): SC 3, Rated voltage: 19 ... 30 V DC