Why CP2E-E20DR-A Is Not a Substitute
A common wrong cross-reference in procurement is the CP2E-E20DR-A—a completely different Omron product family. The CP2E-E20DR-A is a PLC CPU with integral I/O, not a remote I/O slice. It uses a 100-240 VAC power supply and screw terminals; the NX-OD3268 is a 24 VDC bus-powered module with push-in terminals. They share zero physical or electrical connectivity. If your panel was specified around the CP2E system, this NX module won't even mount on the same DIN rail without an adapter. Second-source? There is no second-source for this NX slice; order it by the exact MPN from Omron's authorized channel.
Mounting & Integration – DIN Rail Checklist
Four transistor outputs are sink (NPN) configuration rated for 24 VDC.
