HART MUX Secondary Module KFD0-HMS-16, HART MUX Secondary Module, K-System HIS, 16-channel, No external power required, HART field device input (revision 5 to 7), Used with HART MUX primary module KFD2-HMM-16, Up to SIL 3 acc. to IEC/EN 61508, Reverse polarity protection, Up to SIL 2 (SC 3) acc. to IEC/EN 61508