The Omron CJ1W-II101 is an interface module for the CJ Series programmable controllers, providing I/O expansion via a D-Sub connector.
Sits on the CJ backplane, addressed via the I/O bus. The D-Sub termination matches standard CJ expansion cables — verify cable length and pinout for your remote I/O block. DIN rail mount frees panel space compared to screw-terminal modules, but ensure the D-Sub connector is accessible for mating.
Comparison note: CP1W-32ET
The CP1W-32ET is an output module with screw terminals and 32 solid-state outputs, not an interface module. It is not a functional substitute for the CJ1W-II101 — the interface module handles I/O bus expansion, while the output module drives loads directly. Do not cross-reference for a BOM substitution without reviewing the system architecture.