These are CMI modules have Serial Comunication outputs.

CMI-CD100
CMI 4xRS PORTS 8DIO
1,930.00 1930.0 ZAR Excl. VAT
CMI-COM01
CMI 2xRS PORTS 5V/12V
1,110.00 1110.0 ZAR Excl. VAT
CMI-COM02
CMI 4xRS PORTS
1,660.00 1660.0 ZAR Excl. VAT
CMI-COM03
CMI 2xRS PORTS 5V/12V
1,170.00 1170.0 ZAR Excl. VAT
CMI-COM102
CMI 2x232/422/485
900.00 900.0 ZAR Excl. VAT
CMI-ICD100
CMI 4xRS PORTS 8DIO
2,875.00 2875.0 ZAR Excl. VAT
CMI-ICOM01
CMI 4xRS PORTS
3,025.00 3025.0 ZAR Excl. VAT