Description PS-36 Wall-mount VDSL2 POTS Splitter PS-36 Master Splitter is a passive low-pass filter designed to provide POTS service in concert with VDSL2 technology. The device blocks high frequency (20kHz-30MHz) energy from interfering with voice equipment and prevents POTS noise from causing data errors on the xDSL connection. The PS-36 is backwards compatible with all xDSL systems.