POM - Programming On The Main
Programming On The Main (POM) is a special form of programming in which
the locomotive is programmed while it is in operation, i.e. the
locomotive does not have to be standing on the programming track and
does not have to be stopped. POM must be supported by the decoder in
use (see decoder instructions) and only certain settings can be
programmed using POM. POM cannot be used to read out values from a
decoder / locomotive.
Aside from this, POM is nothing more than the normal Programming of CVs