Patent ID: 7016474
Filing Date: 2006-03-21
Classification: H04M

Abstract:
1. A circuit for interfacing between a DSL (Digital Subscriber Line), and a Public Switched Telephone Network (PSTN) and a Data Network, comprising: a telephone network interface circuit comprising a POTS (Plain Old Telephone Service) Line Card and a Low-Pass Filter; and a data network interface circuit, comprising a modem and a series capacitor; wherein both the telephone network interface circuit and the data network interface circuit are connected to one point on a main distributing frame; wherein a test access facility is connectable to said one point; wherein a blocking capacitor is inserted in the connection between the Data Network interface circuit and the Main Distributing Frame; wherein a broadband test access facility is connectable between said blocking capacitor and said data network interface circuit; wherein direct current signals and POTS service bandwidth signals to said test facility are blocked.