Solid Signal > TV Antennas and Supplies > Power Supplies > Channel Master CM-7777XPI
The output port that is used to back feed power is usually marked as RF Out/DC In or something similar. It is important that if the power inserter is used that it is installed correctly. The 7777XPI power inserter has markings on the label to show the correct way to connect the cables. The side marked “To Amp” should never be connected to the TV. This port will have 12VDC on it, and it is possible that older TVs can be damaged by that voltage. Newer TVs should be protected, but not all may be protected.
In most installations, it will not be necessary to use the power inserter. If the distribution amplifier is mounted near a power outlet, the power inserter isn’t needed since the distribution amplifier can be plugged directly into the wall outlet.
There are no performance advantages to using the power inserter – it is only used to allow the unit to be remotely powered when the distribution amplifier can’t be located near a power outlet.
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