JPS5413711A - Main-wire connection system of cordless attendant board - Google Patents

Main-wire connection system of cordless attendant board

Info

Publication number
JPS5413711A
JPS5413711A JP7900477A JP7900477A JPS5413711A JP S5413711 A JPS5413711 A JP S5413711A JP 7900477 A JP7900477 A JP 7900477A JP 7900477 A JP7900477 A JP 7900477A JP S5413711 A JPS5413711 A JP S5413711A
Authority
JP
Japan
Prior art keywords
main
cordless
wire connection
connection system
attendant board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP7900477A
Other languages
Japanese (ja)
Inventor
Masato Ushio
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iwatsu Electric Co Ltd
Original Assignee
Iwatsu Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Iwatsu Electric Co Ltd filed Critical Iwatsu Electric Co Ltd
Priority to JP7900477A priority Critical patent/JPS5413711A/en
Publication of JPS5413711A publication Critical patent/JPS5413711A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/60—Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator

Abstract

PURPOSE:To accommodate main wires more than office keys, by dividing main-wire trunks into several groups, by providing a circuit trunk number change-over circuit which selects one of these divided groups and assignment-office change-over key, and by making double use switching the key.
JP7900477A 1977-07-04 1977-07-04 Main-wire connection system of cordless attendant board Pending JPS5413711A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7900477A JPS5413711A (en) 1977-07-04 1977-07-04 Main-wire connection system of cordless attendant board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7900477A JPS5413711A (en) 1977-07-04 1977-07-04 Main-wire connection system of cordless attendant board

Publications (1)

Publication Number Publication Date
JPS5413711A true JPS5413711A (en) 1979-02-01

Family

ID=13677798

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7900477A Pending JPS5413711A (en) 1977-07-04 1977-07-04 Main-wire connection system of cordless attendant board

Country Status (1)

Country Link
JP (1) JPS5413711A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507601A (en) * 1988-09-19 1996-04-16 Mori-Gumi Co., Ltd. Method of transferring water with compressed air
US7208399B2 (en) 1998-12-07 2007-04-24 Intel Corporation Transistor with notched gate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507601A (en) * 1988-09-19 1996-04-16 Mori-Gumi Co., Ltd. Method of transferring water with compressed air
US7208399B2 (en) 1998-12-07 2007-04-24 Intel Corporation Transistor with notched gate

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