What is the WI Plus Module?
A. The NXT-WI Plus module supersedes the NXT-WI module.
As is true with the NXT-WI module, it can only be configured for Wiegand output but you can change the LED mode (single-line or dual line LED mode) using the SW switches on the module.
It can be distinguished from the NXT-RM3 module by its red SW switches. On the NXT-RM3 module these switches are white.