The legacy SW44 switch is used to expand two legacy dual LNBF's to four outputs to allow for additional receivers. The SW44 multiswitch combines signal from Bell TV's 2 satellites at 91°W & 82°W (orbital positions) and provides output for up to 4 tuners. Bell and Dish Network approved switch. Complete SW44 Switch Assembly includes: SW44 Switch, Power Inserter and Power Supply and installation instructions. Brand new in box, 12 month warranty. The AC/DC power supply (a) connects to the in-line power inserter (b). The main switch (c) can be connected anywhere in the distribution system and receives its power from the power inserter via one of its 4 outputs. The 2 outputs from each LNBF of the elliptical antenna (or from each LNBF of each antenna) MUST be connected to the switch (4 inputs in total, in order to provide 1 to 4 outputs).