The RIO128L is a module that contains 128 open collector drive transistors. Each of the outputs are field programmable and may be activated upon any system change of state, or as a result of a relay for lighting control, action. This module is typically used to interface to custom graphics panels. Each output is capable of driving one LED. This module is also available in a circuit card only version without the standard mounting plate and hardware for direct mounting into a custom graphics panel. A connector and cable is supplied for connections to remote LEDs.