What It Is and Where It Fits
The Omron CRT1-MD16TA-1 is a combined I/O slice for the CRT1 remote terminal series, giving you 8 digital inputs and 8 solid-state outputs in a single DIN-rail package. It's designed for use with CJ, CS, and NJ Series controllers — so if you're populating a remote node off one of those backplanes, its wiring scheme and bus protocol match the CRT1 system natively. Termination is via a rectangular connector plus screw terminals, and the module carries CE and cULus marks — the documentation trail is there for panel certification. The solid-state outputs switch without mechanical wear, which matters for high-cycle applications.