Title:
INTERPHONE SYSTEM
Document Type and Number:
Japanese Patent JP3881285
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an interphone system wherein interphone master units in the private rooms are interconnected by using a terminal unit separate from the master units and only the terminal unit can be disconnected as required while keeping the interconnection state.
SOLUTION: The interphone system comprises a slave unit at the entrance, the plurality of interphone master units 1 disposed in the private rooms that can be called from the slave unit at the entrance via a trunk line path and communicating with the entrance slave unit and a terminal unit 2 consisting of terminal tabs 31 interconnecting the interphone master units by jumper wires to form the trunk line path, and a terminal board mounted with the terminal tabs for making electrical connection of the trunk line paths by using the jumper wires. A mount unit 60 for freely removably mounting the terminal unit to a space produced on the rear side of a CRT module on the rear side 13 of the interphone master unit is provided to the interphone master unit.
Inventors:
Kazuya Yoshida
Manabu Yamada
Masaya Mizutani
Manabu Yamada
Masaya Mizutani
Application Number:
JP2002157789A
Publication Date:
February 14, 2007
Filing Date:
May 30, 2002
Export Citation:
Assignee:
Aiphone Co., Ltd.
International Classes:
H04M9/00; H05K7/00; H04M1/00; H04M1/02; H04M1/21; H04M1/715; H04M1/738; H04M9/02; H05K5/02; (IPC1-7): H04M9/00; H04M1/00; H04M1/02; H04M1/21; H04M1/723; H04M1/738; H05K5/02; H05K7/00
Domestic Patent References:
| JP7236211A | ||||
| JP9321850A |
Attorney, Agent or Firm:
Kazuo Moriya
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