JPS57164647A - Parallel operation for telephone device on digital loop - Google Patents

Parallel operation for telephone device on digital loop

Info

Publication number
JPS57164647A
JPS57164647A JP57031648A JP3164882A JPS57164647A JP S57164647 A JPS57164647 A JP S57164647A JP 57031648 A JP57031648 A JP 57031648A JP 3164882 A JP3164882 A JP 3164882A JP S57164647 A JPS57164647 A JP S57164647A
Authority
JP
Japan
Prior art keywords
passive
digital
signal magnitude
loop
digital loop
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
JP57031648A
Other languages
English (en)
Inventor
Jieimuzu Retaratsuku Roorensu
Uirufuretsudo Riide Korunerisu
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of JPS57164647A publication Critical patent/JPS57164647A/ja
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
    • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems
    • 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
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Telephone Function (AREA)
  • Telephonic Communication Services (AREA)
  • Small-Scale Networks (AREA)
JP57031648A 1981-02-27 1982-02-27 Parallel operation for telephone device on digital loop Pending JPS57164647A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000371926A CA1153137A (en) 1981-02-27 1981-02-27 Parallel operation of telephone equipment on a digital loop

Publications (1)

Publication Number Publication Date
JPS57164647A true JPS57164647A (en) 1982-10-09

Family

ID=4119327

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57031648A Pending JPS57164647A (en) 1981-02-27 1982-02-27 Parallel operation for telephone device on digital loop

Country Status (5)

Country Link
EP (1) EP0059543B1 (ja)
JP (1) JPS57164647A (ja)
AT (1) ATE13957T1 (ja)
CA (1) CA1153137A (ja)
DE (1) DE3264166D1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009002596A (ja) * 2007-06-22 2009-01-08 Toshiba Corp 冷却ユニット

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1547671A1 (ru) * 1988-07-20 1991-09-07 Предприятие П/Я Р-6609 Цифрова коммутационна система

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518523A (ja) * 1974-07-10 1976-01-23 Matsushita Electric Industrial Co Ltd

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2917570B1 (de) * 1979-04-30 1980-05-14 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer eine digitale Fernsprechteilnehmerstation
AU535333B2 (en) * 1979-07-25 1984-03-15 L M Ericsson Pty. Ltd. Loop sharing in digital systems

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS518523A (ja) * 1974-07-10 1976-01-23 Matsushita Electric Industrial Co Ltd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009002596A (ja) * 2007-06-22 2009-01-08 Toshiba Corp 冷却ユニット

Also Published As

Publication number Publication date
CA1153137A (en) 1983-08-30
EP0059543B1 (en) 1985-06-19
EP0059543A1 (en) 1982-09-08
ATE13957T1 (de) 1985-07-15
DE3264166D1 (en) 1985-07-25

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