To provide a precedent wiring system corresponding to multimedia and capable of simply executing the grade-up of wiring up to the wiring of a LAN.
A multimedia port 1 is constituted of a router 2 with an ISDN hub, a relay terminal board 3 and a DSU 4 provided with analog ports and including a TA function which are arranged in parallel in its board. Each of multimedia plug sockets 5a arranged in a room is provided with two analog telephone modular plug sockets 61a, 62a and an ISDN modular jack 7a, one end of a cable 8 having four pairs of lines and corresponding to a category '5' is connected to each modular jack 7a, two pairs of lines 81 in the cable 8 are used for outgoing lines, and two pairs of lines 82 in the cable 8 are used for incoming lines. A cable 9 consisting of two pairs of twisted pair lines corresponding to the modular plug sockets 61a, 62a is wired correspondingly to each multimedia plug socket 5a.
FUKAGAWA HITOSHI
NAKAMURA TERUHITO
INOUE HIROO
KINEKAWA YASUKAZU
INAGE TOSHIAKI
