The Wilcom PS-15-I3 POTS Splitter is a passive low-pass filter designed to provide POTS in concert with ADSL technology. The device blocks high frequency (20kHz - 1MHz) energy from interfering with POTS equipment. The PS-15-I3 employs a 7kHz low-pass filter for standard voice-grade lines. The PS-15-I3 is designed to be mounted inside the customer's location near the Network Interface. This allows the installer to simply connect the existing premise wiring to the phone jack or associated terminals on the splitter, and have POTS up and running within minutes without expensive and time-consuming rewiring. An RJ-45 jack or associated terminals connect directly to the ATU-R/MODEM equipment with data-grade cabling. Measures 0.9" x 3.0" x 2.0" and weighs 2.6 oz.