6ES7972-0AA01-0XA0 – REPEATER MODULE, SIMATIC DP, FOR THE CONNECTION OF PROFIBUS/MPI BUS SYSTEMS, 31 NODES MAX, 12 MBPS, IP20, SUCCESSOR IS 6ES7972-0AA02-0XA0
6ES7972-0AC80-0XA0 – COUPLER, SIMATIC DP, DIST.I/0 FIELD BUS RS485-IS, PROFIBUS DP, FOR CONTROLLING INTRINSICALLY SAFE PROFIBUS NODES, INSTALLATION IN HAZARDOUS ZONE 2, IP20
6ES7972-0BA11-0XA0 – SIMATIC DP, BUS CONNECTOR FOR PROFIBUS UP TO 12MBIT/S, 90DEGREE ANGLE OUTGOING CABLE, 15.8X54X34MM, TERMINAT. RESIST. WITH ISOLAT. FUNCTION, WITHOUT PG SOCKET