The 8-OUTPUT PLUS 1 PASSIVE DATA PORT. PASSIVE REVERSE INFINITY PREMISE SYMMETRY PLUS SERIES (Part number: IPA1008D-VF) from Amphenol is a Outdoor Coaxial Taps . Are typically used in CATV broadband networks outdoor. Coaxial taps are low-loss devices that work better with unequal lenght cable runs since it sends a fixed amount of signal. This way, the tap attenuates the signal by applying different amount of loss to each output port, so that when are used different cable lenghts, the output keeps the same to all cables.