Digital Satellite Multiswitch modules by Impact Acoustics(?) are designed for quick and easy installation into our Structured Wiring Panels. Split the LNB signal of circular-polarized small-dish satellite systems for viewing on up to four separate IRD?s. Multiplex an antenna feed for local digital and high definition programming and combine the feed from a dual LNB digital satellite dish for distribution throughout your house. Simply connect a diplexer at the receiver end to separate the two signals. No additional power is necessary since the multiswitch draws its operating power directly from the digital satellite receiver.