JPS57111166A - Add-on connection system - Google Patents

Add-on connection system

Info

Publication number
JPS57111166A
JPS57111166A JP18681680A JP18681680A JPS57111166A JP S57111166 A JPS57111166 A JP S57111166A JP 18681680 A JP18681680 A JP 18681680A JP 18681680 A JP18681680 A JP 18681680A JP S57111166 A JPS57111166 A JP S57111166A
Authority
JP
Japan
Prior art keywords
connection
add
subscriber
loop
transmission line
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
JP18681680A
Other languages
Japanese (ja)
Inventor
Yosuke Honda
Yuji Kato
Kazuhiro Hiraide
Shunichi Hidaka
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.)
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujitsu Ltd
Nippon Telegraph and Telephone Corp
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 Fujitsu Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujitsu Ltd
Priority to JP18681680A priority Critical patent/JPS57111166A/en
Publication of JPS57111166A publication Critical patent/JPS57111166A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:To execute an efficient connection by a small quantity of a control signal, by controlling in the lump the connection of plural buses on a loop-like transmission line by a master station, and executing an add-on connection. CONSTITUTION:One master station 4 and plural dispersion exchanges, for instance, 5, 6 and 7 are provided on a loop-like transmission line of a channel multiplexing system. When a channel #n is used between a subscriber A and B, if the subscriber A requests add-on to the subscriber B and a subscriber X, the originating slave station transmits a selective signal. As a result, the master station A controls the connection of plural buses #0, #m on the loop-like transmission line, and executes the add-on connection of the respective subscribers A, B and X through the slave stations 5, 6 and 7.
JP18681680A 1980-12-26 1980-12-26 Add-on connection system Pending JPS57111166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18681680A JPS57111166A (en) 1980-12-26 1980-12-26 Add-on connection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18681680A JPS57111166A (en) 1980-12-26 1980-12-26 Add-on connection system

Publications (1)

Publication Number Publication Date
JPS57111166A true JPS57111166A (en) 1982-07-10

Family

ID=16195091

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18681680A Pending JPS57111166A (en) 1980-12-26 1980-12-26 Add-on connection system

Country Status (1)

Country Link
JP (1) JPS57111166A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114953A (en) * 1982-12-21 1984-07-03 Fujitsu Ltd Connection processing system
JPH02135833A (en) * 1988-11-16 1990-05-24 Hitachi Ltd Transmission system for network having plural channels
FR2721781A1 (en) * 1994-06-28 1995-12-29 Thomson Csf Method for ensuring the confidentiality of a voice link and a local telecommunication network implementing the method.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111505A (en) * 1974-06-17 1976-01-29 Hasler Ag
JPS55107373A (en) * 1979-02-09 1980-08-18 Mitsubishi Electric Corp Meeting communication system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111505A (en) * 1974-06-17 1976-01-29 Hasler Ag
JPS55107373A (en) * 1979-02-09 1980-08-18 Mitsubishi Electric Corp Meeting communication system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59114953A (en) * 1982-12-21 1984-07-03 Fujitsu Ltd Connection processing system
JPH0412060B2 (en) * 1982-12-21 1992-03-03 Fujitsu Ltd
JPH02135833A (en) * 1988-11-16 1990-05-24 Hitachi Ltd Transmission system for network having plural channels
JPH0695677B2 (en) * 1988-11-16 1994-11-24 株式会社日立製作所 Network transmission system with multiple channels
US5497370A (en) * 1988-11-16 1996-03-05 Hitachi, Ltd. Network system
FR2721781A1 (en) * 1994-06-28 1995-12-29 Thomson Csf Method for ensuring the confidentiality of a voice link and a local telecommunication network implementing the method.
EP0690604A1 (en) * 1994-06-28 1996-01-03 Thomson-Csf Method to assure the confidentiality of an audiolink and local telecommunicationnetwork carrying out this method

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