I am about to move to a country which supplies 115V instead of 230V, do I need to swap my NDX 2?

To allow your NDX 2 to be used in a country with a different mains voltage to the one where it was purchased it will need to be modified internally. If you are using an external power supply (XPS DR or 555PS DR) this will also need to be modified in a similar way.

Contact your dealer or distributor for more details.