The NXG-508N adds 8 additional relay outputs to the Aritech Reliance XR Series of panels. Via a jumper, each Single Pole Double Throw (SPDT) Form C relay output can be configured in 3 different modes: as drycontact, or to switch the bus or externally supplied voltage to the output terminal, or to switch the bus ground to the output terminal. This allows use of the module in different applications. The status LED next to each output shows the actual state of the relay