Backup battery holder module Modicon Quantum - for multifunction input module
Multifunction input module Modicon Quantum - 32 I - IRIG-B - DCF77
Modicon Quantum - discrete input simulator 16 switches
Discrete output module Modicon Quantum - 32 O - positive logic (source)
Discrete I/O module Modicon Quantum - 16 I - 24 V DC - 8 O solid state