System for providing data and telephony services

摘要

System (1) provides telephony and data services to a user's premises. The system comprises a termination unit (20) for terminating an incoming pair of conductors (11, 12) from a telecommunications access network within the user's premises; the termination unit has a connector portion operable to connect with a corresponding termination unit to modem connector containing at least three conductors (232, 235, 233) able to carry electrical signals. The termination unit is arranged to provide a good electrical connection between two of the conductors (232, 235) within the termination unit to modem connector, which conductors (232, 235) when in use, carry data signals between the access network and the user modem (30) and are hereinafter referred to as the two data carrying conductors, and the incoming pair of conductors (11, 12) from the access network respectively. The termination unit provides an insulation of the other conductor (233) or conductors within the connector from the incoming pair of conductors (11, 12) from the access network. The system further includes a user modem (30) which is connectable to the termination unit (20) to modem (30) connector (232, 235, 233) and is operable to transmit data signals onto and to receive data signals from the data carrying conductors (232, 235) and is further operable to transmit telephony signals onto and to receive telephony signals from a pair of modem-side telephony signal carrying conductors (235, 233) which includes the other conductor (233) or at least one of the other conductors within the termination unit to modem connector; and
a cross-connection unit (40) having a connection portion which is operable to connect with a telephone connector, which telephone connector includes at least two telephone-side telephony signal carrying conductors operable to carry telephony signals to and from a telephone apparatus, the cross connection unit further including a cross-connection (432) which electrically connects the two telephone-side telephony signal carrying conductors to the two modem-side telephony signal carrying conductors respectively when in use.