CH420282A - Circuit arrangement for a telephone system, in particular a telephone branch exchange with central identification - Google Patents

Circuit arrangement for a telephone system, in particular a telephone branch exchange with central identification

Info

Publication number
CH420282A
CH420282A CH293065A CH293065A CH420282A CH 420282 A CH420282 A CH 420282A CH 293065 A CH293065 A CH 293065A CH 293065 A CH293065 A CH 293065A CH 420282 A CH420282 A CH 420282A
Authority
CH
Switzerland
Prior art keywords
telephone
circuit arrangement
branch exchange
central identification
telephone system
Prior art date
Application number
CH293065A
Other languages
German (de)
Inventor
Hermann Dipl Ing Kellerer
Rudolf Dipl Ing Weinfurter
Ulrich Dipl Ing Koerber
Dieter Dipl Ing Voegtlen
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Publication of CH420282A publication Critical patent/CH420282A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Exchange Systems With Centralized Control (AREA)
CH293065A 1964-03-05 1965-03-03 Circuit arrangement for a telephone system, in particular a telephone branch exchange with central identification CH420282A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES89859A DE1211282B (en) 1964-03-05 1964-03-05 Circuit arrangement for a telephone, in particular telephone branch exchange, with a central device for identification

Publications (1)

Publication Number Publication Date
CH420282A true CH420282A (en) 1966-09-15

Family

ID=7515395

Family Applications (1)

Application Number Title Priority Date Filing Date
CH293065A CH420282A (en) 1964-03-05 1965-03-03 Circuit arrangement for a telephone system, in particular a telephone branch exchange with central identification

Country Status (7)

Country Link
BE (1) BE660689A (en)
CH (1) CH420282A (en)
DE (1) DE1211282B (en)
FR (1) FR1431203A (en)
GB (1) GB1055867A (en)
NL (1) NL150982B (en)
SE (1) SE311544B (en)

Also Published As

Publication number Publication date
NL150982B (en) 1976-09-15
BE660689A (en) 1965-09-06
FR1431203A (en) 1966-03-11
DE1211282B (en) 1966-02-24
SE311544B (en) 1969-06-16
GB1055867A (en) 1967-01-18
NL6501793A (en) 1965-09-06

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