AT316659B - Circuit arrangement for a centrally controlled telephone system, in particular telephone branch exchange, with direct current signals and connecting lines leading to subscriber stations with low-frequency, audio-frequency and video signals - Google Patents

Circuit arrangement for a centrally controlled telephone system, in particular telephone branch exchange, with direct current signals and connecting lines leading to subscriber stations with low-frequency, audio-frequency and video signals

Info

Publication number
AT316659B
AT316659B AT58472A AT58472A AT316659B AT 316659 B AT316659 B AT 316659B AT 58472 A AT58472 A AT 58472A AT 58472 A AT58472 A AT 58472A AT 316659 B AT316659 B AT 316659B
Authority
AT
Austria
Prior art keywords
frequency
audio
direct current
circuit arrangement
low
Prior art date
Application number
AT58472A
Other languages
German (de)
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
Application granted granted Critical
Publication of AT316659B publication Critical patent/AT316659B/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
    • H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages
AT58472A 1971-02-11 1972-01-25 Circuit arrangement for a centrally controlled telephone system, in particular telephone branch exchange, with direct current signals and connecting lines leading to subscriber stations with low-frequency, audio-frequency and video signals AT316659B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712106390 DE2106390C3 (en) 1971-02-11 1971-02-11 Circuit arrangement for a centrally controlled telecommunications, in particular telephone branch exchange, with connected pulse and touch dial subscriber stations

Publications (1)

Publication Number Publication Date
AT316659B true AT316659B (en) 1974-07-25

Family

ID=5798410

Family Applications (1)

Application Number Title Priority Date Filing Date
AT58472A AT316659B (en) 1971-02-11 1972-01-25 Circuit arrangement for a centrally controlled telephone system, in particular telephone branch exchange, with direct current signals and connecting lines leading to subscriber stations with low-frequency, audio-frequency and video signals

Country Status (9)

Country Link
AT (1) AT316659B (en)
BE (1) BE779286A (en)
CH (1) CH540615A (en)
DE (1) DE2106390C3 (en)
FR (1) FR2126772A5 (en)
GB (1) GB1370063A (en)
IT (1) IT947374B (en)
LU (1) LU64757A1 (en)
NL (1) NL7201849A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2500247B1 (en) * 1981-02-13 1987-12-24 France Etat MATRIX OPTICAL CONCENTRATOR-DISTRIBUTOR

Also Published As

Publication number Publication date
CH540615A (en) 1973-08-15
IT947374B (en) 1973-05-21
FR2126772A5 (en) 1972-10-06
NL7201849A (en) 1972-08-15
DE2106390B2 (en) 1975-01-02
BE779286A (en) 1972-08-11
LU64757A1 (en) 1972-07-04
DE2106390C3 (en) 1975-08-21
GB1370063A (en) 1974-10-09
DE2106390A1 (en) 1972-08-24

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee