RENEWAL METHOD OF EXCHANGE

PROBLEM TO BE SOLVED: To reduce human mistakes at the renewal of an exchange, and to largely shorten a time for renewal work. SOLUTION: This method switches the connection of subscriber lines 11 connected to an existing exchange 30 through one side of a jumper wire 21 of a double-jumper wire of an e...

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Bibliographic Details
Main Authors SUNAHARA TOSHIHARU, MAEJIMA HIROSHI, MIKAMI MASAYA, HORIE YOSHIHIRO
Format Patent
LanguageEnglish
Published 05.06.2008
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TELEPHONIC COMMUNICATION
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Summary:PROBLEM TO BE SOLVED: To reduce human mistakes at the renewal of an exchange, and to largely shorten a time for renewal work. SOLUTION: This method switches the connection of subscriber lines 11 connected to an existing exchange 30 through one side of a jumper wire 21 of a double-jumper wire of an existing side protector 50 and an existing wiring device 20 in which an existing side disconnection device 70 is inserted and placed in a conduction state to a newly installed exchange 40. The method is composed of a step in which the newly installed exchange 40 is connected to the subscriber lines 11 through the other jumper wire 22 of the double-jumper wire of a newly installed side protector 60 and the existing wiring device 20 in which a newly arranged disconnection device 80 is inserted and placed in a DC disconnection or AC conduction state; and a step which remotely control the existing side disconnection device 70 and the newly installed side disconnection device 80 so as to switch the existing side protector 50 from a conduction state to a disconnection state after the confirmation of the normality of the double-jumper wire connection, and switch the newly installed side protector 60 from the DC disconnection or AC conduction state to the conduction state. COPYRIGHT: (C)2008,JPO&INPIT
Bibliography:Application Number: JP20060312810