Specially-designed circuitry to optimally interface RF, DC voltages and currents, channel/satellite selections, etc. With all DIRECTV Dish Antenna Systems and all generations of DIRECTV IRDs. Typical off-the-shelf multi-switches may not be optimally designed for, and therefore may not work properly with all generations of DIRECTV Systems. The 4×8 Multi-Switch is sealed so it can be used either indoors or outdoors. It operates in extreme temperature ranges from -34C to +60C. Contains a power-on indicator to aid installation or trouble-shooting. The AC/DC Module is equipped with a re-settable thermal circuit breaker to protect against damage due to shorts during installation. The AC/DC Module is designed for connection to the 4×8 Multi-Switch directly, or remotely via a commonly available RG-6 cable, up to a 100 feet. F-F adapter is included.