- CJ1 Special I/O Units, Compo Bus/S Master, Communications functions Remote I/O Communications, No of I/O points 256 max (128 inputs and 128 outputs), max Units mountable per CPU Unit 40, No of numbers unit allocated 1 or 2 (variable), Current Consumption (A) 5 V 0.15 : CJ1W-SMR21
- CJI Special I/O Units, Compo Bus/S Master Unit, Communications functions Remote communications, No of I/D points 128 max (64 inputs and 64 outputs), Max Units mountable per CPU Unit 40, No of unit numbers allocated 1 or 2 (variable), Current Consumption (A) 5 V 0.15 : CJ1W-SRM21
