IT947374B - CIRCUITAL ARRANGEMENT FOR A TELEPHONE SYSTEM WITH CEN TRALYZED COMMANDS ESPECIALLY FOR A TELEPHONE EXTENSION SYSTEM WITH CONNECTION LINES THAT HEAD TO USER EQUIPMENT AND TRANSMIT NO SIGNALS IN DIRECT CURRENT OR SIGNALS AT PHONE FREQUENCY AND SIX VIDEO - Google Patents

CIRCUITAL ARRANGEMENT FOR A TELEPHONE SYSTEM WITH CEN TRALYZED COMMANDS ESPECIALLY FOR A TELEPHONE EXTENSION SYSTEM WITH CONNECTION LINES THAT HEAD TO USER EQUIPMENT AND TRANSMIT NO SIGNALS IN DIRECT CURRENT OR SIGNALS AT PHONE FREQUENCY AND SIX VIDEO

Info

Publication number
IT947374B
IT947374B IT2031572A IT2031572A IT947374B IT 947374 B IT947374 B IT 947374B IT 2031572 A IT2031572 A IT 2031572A IT 2031572 A IT2031572 A IT 2031572A IT 947374 B IT947374 B IT 947374B
Authority
IT
Italy
Prior art keywords
signals
telephone
tralyzed
cen
video
Prior art date
Application number
IT2031572A
Other languages
Italian (it)
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 IT947374B publication Critical patent/IT947374B/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
IT2031572A 1971-02-11 1972-02-08 CIRCUITAL ARRANGEMENT FOR A TELEPHONE SYSTEM WITH CEN TRALYZED COMMANDS ESPECIALLY FOR A TELEPHONE EXTENSION SYSTEM WITH CONNECTION LINES THAT HEAD TO USER EQUIPMENT AND TRANSMIT NO SIGNALS IN DIRECT CURRENT OR SIGNALS AT PHONE FREQUENCY AND SIX VIDEO IT947374B (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
IT947374B true IT947374B (en) 1973-05-21

Family

ID=5798410

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2031572A IT947374B (en) 1971-02-11 1972-02-08 CIRCUITAL ARRANGEMENT FOR A TELEPHONE SYSTEM WITH CEN TRALYZED COMMANDS ESPECIALLY FOR A TELEPHONE EXTENSION SYSTEM WITH CONNECTION LINES THAT HEAD TO USER EQUIPMENT AND TRANSMIT NO SIGNALS IN DIRECT CURRENT OR SIGNALS AT PHONE FREQUENCY AND SIX VIDEO

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
DE2106390A1 (en) 1972-08-24
DE2106390B2 (en) 1975-01-02
LU64757A1 (en) 1972-07-04
DE2106390C3 (en) 1975-08-21
BE779286A (en) 1972-08-11
FR2126772A5 (en) 1972-10-06
NL7201849A (en) 1972-08-15
GB1370063A (en) 1974-10-09
AT316659B (en) 1974-07-25

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