SE411089B - POWER CIRCUIT TO PROTECT ELECTRONIC SWITCHES IN TELEPHONE STATIONS AGAINST OVERVOLTAGE - Google Patents

POWER CIRCUIT TO PROTECT ELECTRONIC SWITCHES IN TELEPHONE STATIONS AGAINST OVERVOLTAGE

Info

Publication number
SE411089B
SE411089B SE7600255A SE7600255A SE411089B SE 411089 B SE411089 B SE 411089B SE 7600255 A SE7600255 A SE 7600255A SE 7600255 A SE7600255 A SE 7600255A SE 411089 B SE411089 B SE 411089B
Authority
SE
Sweden
Prior art keywords
power circuit
electronic switches
telephone stations
protect electronic
against overvoltage
Prior art date
Application number
SE7600255A
Other languages
Swedish (sv)
Other versions
SE7600255L (en
Inventor
L Gasser
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
Publication of SE7600255L publication Critical patent/SE7600255L/en
Publication of SE411089B publication Critical patent/SE411089B/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
    • H04Q3/52—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)
  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Gyroscopes (AREA)
  • Control Of Eletrric Generators (AREA)
  • Optical Recording Or Reproduction (AREA)
SE7600255A 1975-01-16 1976-01-13 POWER CIRCUIT TO PROTECT ELECTRONIC SWITCHES IN TELEPHONE STATIONS AGAINST OVERVOLTAGE SE411089B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2501651A DE2501651C2 (en) 1975-01-16 1975-01-16 Circuit arrangement for overvoltage protection of electronic switching matrices

Publications (2)

Publication Number Publication Date
SE7600255L SE7600255L (en) 1976-07-19
SE411089B true SE411089B (en) 1979-11-26

Family

ID=5936610

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7600255A SE411089B (en) 1975-01-16 1976-01-13 POWER CIRCUIT TO PROTECT ELECTRONIC SWITCHES IN TELEPHONE STATIONS AGAINST OVERVOLTAGE

Country Status (12)

Country Link
AU (1) AU501744B2 (en)
BE (1) BE837625R (en)
CH (1) CH604456A5 (en)
DE (1) DE2501651C2 (en)
DK (1) DK15176A (en)
ES (1) ES444317A1 (en)
FR (1) FR2298215A1 (en)
GB (1) GB1499961A (en)
IT (1) IT1054944B (en)
NL (1) NL7600332A (en)
NO (1) NO143185C (en)
SE (1) SE411089B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2419625A1 (en) * 1978-03-07 1979-10-05 Labo Cent Telecommunicat Overvoltage protector for telephone subscriber equipment - has each line grounded by triac controlled by back-to-back Zener diode
DE3334952A1 (en) * 1983-09-27 1985-04-18 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR PROTECTING AN ELECTRONIC CIRCUIT CONNECTED TO THE FOURWIRE SIDE OF A TRANSMISSION FORK
DE19548063C2 (en) * 1995-12-21 1998-03-12 Siemens Ag Circuit arrangement for protecting a subscriber circuit of a telecommunications switching system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL268951A (en) * 1960-09-07
US3452157A (en) * 1966-02-01 1969-06-24 Itt Current controlled,self-seeking telephone switching system
US3558830A (en) * 1969-04-09 1971-01-26 Communication Technology Inc Overvoltage transmission line protector
DE2419288C2 (en) * 1974-04-22 1982-04-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart Circuit arrangement for de-attenuation and equalization of electronic switches, in particular of electronic coupling elements of a telephone exchange

Also Published As

Publication number Publication date
ES444317A1 (en) 1977-05-01
FR2298215B1 (en) 1982-09-24
CH604456A5 (en) 1978-09-15
FR2298215A1 (en) 1976-08-13
DK15176A (en) 1976-07-17
AU501744B2 (en) 1979-06-28
SE7600255L (en) 1976-07-19
DE2501651C2 (en) 1982-11-04
NO143185C (en) 1980-12-29
NL7600332A (en) 1976-07-20
AU1036776A (en) 1977-07-28
NO760072L (en) 1976-07-19
IT1054944B (en) 1981-11-30
BE837625R (en) 1976-07-16
DE2501651A1 (en) 1976-07-22
NO143185B (en) 1980-09-15
GB1499961A (en) 1978-02-01

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