DSL439 1-Line inline filter with a giveback jack allows DSL subscribers to use a HPNA device or DSL modem with their existing telephone (POTS) device, (such as fax machines, answering machines, and analog modems), at the same time. The 1-Line inline filter is clearly marked for quick and easy installation. Once the filter is installed, telephone devices receive a clean, clear POTS or analog services on line 1, while the unfiltered line, marked DSL/HPNA, can be used for DSL or HPNA devices. Eliminates Interference Ensures optimized DSL connections and "total isolation" of analog noise, interference, and modem errors. Standards Compliant Complies with G.lite ADSL, Full-Rate G.dmt, final T1/E1 specification and HPNA version 1.0 and 2.0 technologies. Technical Specifications All DSL439 filters ensure optimized DSL connections and "total isolation" of analog noise, interference, and modem errors. No degradation in telephone audio volume levels or line quality. Usage DSL439 filters can be used with telephones, fax machines, and analog modems that share a DSL line or use home computer networks (HPNA), or both. * Use one filter for each telephone device. If several devices are connected to the same telephone wall jack, use only one filter between the first device and the wall jack. * Complies with Full Rate G.dmt (G.992.1) and G.lite (G992.2) ADSL. * Complies with the final T1/E1 specification. * Stopband rejection greater than 25 dB beyond 50kHz. * Passband insertion loss is less than 1.5 dB through 4 kHz. * Complies with HPNA 1.0 and 2.0 specifications.