The MSC-RU is a single-gang decora module that provides a Cat 5 network connection, and sound system audio out via a pair of color-coded RCA female jacks. The module mounts into a standard electrical box (not provided), and is finished off with a matching decora coverplate. The Cat 5 network connection is made using a standard 110 punchdown block on the back of the module. The wiring must be done to either TIA/EIA 568A or 568B standards. The audio output connection is made using a 3-pin euro style terminal. Pin 1 is shield, pin 2 is negative, and pin 3 is positive. The audio output is transformer balanced. The MSC-RU module is only available in brown.