The RFS21501CPA000 RF Sensing Switch provides a single (2x1) sensing switch which detects the presence of RF (primary) and provides the ability to switch to backup (secondary) on loss of primary. The sensing switch utilizes a DPDT high frequency relay that has the off path terminated into 50Ω.The primary RF input is filtered, amplified, and detected to operate the relay. When the input level is above the preset threshold, which is adjustable using the front panel up/down pushbuttons, the relay is energized and the primary signal path is selected. When the signal falls below the preset threshold, the relay is de-energized and the secondary signal path is selected. A front panel slide switch has been included to allow manual override to the secondary input. The rear panel has been equipped with relay contact alarm outputs and a remote override via contact closure.

Spec Sheet