IT946689B - Perfezionamento nelle disposizioni di selezione e di trasmissione di tipo a centralino automatico priva to derivato - Google Patents

Perfezionamento nelle disposizioni di selezione e di trasmissione di tipo a centralino automatico priva to derivato

Info

Publication number
IT946689B
IT946689B IT19522/72A IT1952272A IT946689B IT 946689 B IT946689 B IT 946689B IT 19522/72 A IT19522/72 A IT 19522/72A IT 1952272 A IT1952272 A IT 1952272A IT 946689 B IT946689 B IT 946689B
Authority
IT
Italy
Prior art keywords
derivative
improvement
selection
transmission arrangements
automatic switchboard
Prior art date
Application number
IT19522/72A
Other languages
English (en)
Italian (it)
Original Assignee
Int Standard Electric 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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of IT946689B publication Critical patent/IT946689B/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0096—Trunk circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
IT19522/72A 1971-01-20 1972-01-19 Perfezionamento nelle disposizioni di selezione e di trasmissione di tipo a centralino automatico priva to derivato IT946689B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU375971 1971-01-20

Publications (1)

Publication Number Publication Date
IT946689B true IT946689B (it) 1973-05-21

Family

ID=3694228

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19522/72A IT946689B (it) 1971-01-20 1972-01-19 Perfezionamento nelle disposizioni di selezione e di trasmissione di tipo a centralino automatico priva to derivato

Country Status (7)

Country Link
US (1) US3794782A (de)
BE (1) BE778262A (de)
CA (1) CA951444A (de)
DE (1) DE2201986A1 (de)
ES (1) ES399050A1 (de)
FR (1) FR2122947A5 (de)
IT (1) IT946689B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5940358B2 (ja) * 1978-10-18 1984-09-29 日本電信電話株式会社 通話路スイツチ回路
DE3804216A1 (de) * 1988-02-11 1989-08-24 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer eine externleitungsuebertragung von kommunikations-vermittlungsanlagen, insbesondere fernsprechnebenstellenanlagen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL287044A (de) * 1961-12-21
DE1616690C3 (de) * 1965-02-08 1974-09-19 Siemens Ag, 1000 Berlin Und 8000 Muenchen Schaltungsanordnung zur Verringerung der Eigenverluste von Induktanzen, insbesondere in Einrichtungen von Fernsprech-Vermittlungsanlagen

Also Published As

Publication number Publication date
BE778262A (fr) 1972-07-20
DE2201986A1 (de) 1972-08-10
FR2122947A5 (de) 1972-09-01
CA951444A (en) 1974-07-16
US3794782A (en) 1974-02-26
ES399050A1 (es) 1974-10-16

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