JPS51139707A - Redundancy system for a wire concentrator - Google Patents

Redundancy system for a wire concentrator

Info

Publication number
JPS51139707A
JPS51139707A JP50064656A JP6465675A JPS51139707A JP S51139707 A JPS51139707 A JP S51139707A JP 50064656 A JP50064656 A JP 50064656A JP 6465675 A JP6465675 A JP 6465675A JP S51139707 A JPS51139707 A JP S51139707A
Authority
JP
Japan
Prior art keywords
wire concentrator
redundancy system
concentrator
wire
multiplexing
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.)
Granted
Application number
JP50064656A
Other languages
Japanese (ja)
Other versions
JPS5519544B2 (en
Inventor
Kazuhiko Goshima
Kenji Motai
Makoto Shinooka
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.)
NTT Inc
Original Assignee
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP50064656A priority Critical patent/JPS51139707A/en
Publication of JPS51139707A publication Critical patent/JPS51139707A/en
Publication of JPS5519544B2 publication Critical patent/JPS5519544B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Abstract

PURPOSE:In a wire concentrator, unit-multiplexing data are obtained by multiplexing with a group unit wherein the circuit number corresponding to a terminal is united with characters. Transferring of this data to a parent station is carried out by an auxiliary device placed in the wire concentrator.
JP50064656A 1975-05-29 1975-05-29 Redundancy system for a wire concentrator Granted JPS51139707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50064656A JPS51139707A (en) 1975-05-29 1975-05-29 Redundancy system for a wire concentrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50064656A JPS51139707A (en) 1975-05-29 1975-05-29 Redundancy system for a wire concentrator

Publications (2)

Publication Number Publication Date
JPS51139707A true JPS51139707A (en) 1976-12-02
JPS5519544B2 JPS5519544B2 (en) 1980-05-27

Family

ID=13264475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50064656A Granted JPS51139707A (en) 1975-05-29 1975-05-29 Redundancy system for a wire concentrator

Country Status (1)

Country Link
JP (1) JPS51139707A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63155993A (en) * 1986-12-19 1988-06-29 Fujitsu Ltd Subscriber line signal line concentration system
JPH02285748A (en) * 1989-03-21 1990-11-26 Minnesota Mining & Mfg Co <3M> Transmission control device for optical fiber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63155993A (en) * 1986-12-19 1988-06-29 Fujitsu Ltd Subscriber line signal line concentration system
JPH02285748A (en) * 1989-03-21 1990-11-26 Minnesota Mining & Mfg Co <3M> Transmission control device for optical fiber

Also Published As

Publication number Publication date
JPS5519544B2 (en) 1980-05-27

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