INFORMATION WIRING IN RESIDENCE, COMPUTERIZED CONSTRUCTION METHOD FOR EXISTING RESIDENCE, AND BRANCHING PLUG SOCKET

PROBLEM TO BE SOLVED: To enable two pieces of apparatuses to be used individually in optional places, concerning wiring which enables two pieces of apparatuses such as a telephone and a personal computer or the like to be used in a small-sized residence or an existing residence equipped with one circuit of telephone wiring. SOLUTION: A plurality of plug sockets for telephones are bus-connected with one another by four-core or six-core in-wall wiring 5, and are exchanged with or changed into information plug sockets equipped with circuit ports 3 and analog ports 2. The circuit ports 3 are bus-connected to the lead-in wire of a telephone from outdoors using the two cores of the in-wall wiring 5, and the analog ports 2 are bus-connected with each other using the other two cores of the in-wall wiring 5. When using an xDSL, a splitter 7 is connected to the circuit port 3, and its low frequency output is connected to the analog port 2. Moreover, when using an ISDN, a DSU router 13 is connected to the circuit port 3, and one of the analog output ports is connected to the analog port 2. COPYRIGHT: (C)2004,JPO