OMRON
Module
CS1W-SCB21-V1

Specifications: 2 × RS-232C ports, protocol macro function.

OMRON
Module
CS1W-SCB41-V1

Specifications: 1 × RS-232C port + 1 × RS-422/485 port, protocol macro function.

OMRON
Module
CS1W-SCU21-V1

Specifications: Two RS-232C Ports.

OMRON
Module
CS1W-SCU31-V1

Specifications: Two RS-422A/485 ports.