Remote LXE is a software program that allows you to control your LXE console remotely. For example, let's say you are going to do a remote broadcast and want to control all the elements of the broadcast from the remote site. As long as you have an internet connection back to your plant where the physical LXE console resides, you can use Remote-LXE to control it as if you were standing right in front of the board.
Compare this to Glass-LXE, which completely virtualizes your LXE. Remote-LXE requires both a physical surface and a mix engine, but Glass-LXE only requires the mix engine to fully virtualize your control room.