Patent ID: 6917683

Claim:
Signal-splitting equipment, for separating DSL signals from audio signals in a telephonic communication system, comprising: a rack supporting an array of signal-splitter cards connected to a back plane providing electric signal connections to the signal-splitter cards, each of the signal-splitter cards having at least one filter channel for processing communicated signals of a respective one of multiple subscribers; a plurality of relay cards supported by respective ones of the signal-splitter cards, each of said relay cards being affixed to its respective signal-splitter card by a connector having bypass circuitry which ensures normal communication of high-frequency signals and low-frequency signals in the event that a relay card is disconnected from its signal-splitter card; and wherein, during the testing of circuitry, relay-control signals are communicated via the back plane and via the respective signal splitting cards to operate the relays of the corresponding relay cards for connection of test equipment to various parts of the system which serve the respective subscriber.