DE2115757A1 - - Google Patents

Info

Publication number
DE2115757A1
DE2115757A1 DE19712115757 DE2115757A DE2115757A1 DE 2115757 A1 DE2115757 A1 DE 2115757A1 DE 19712115757 DE19712115757 DE 19712115757 DE 2115757 A DE2115757 A DE 2115757A DE 2115757 A1 DE2115757 A1 DE 2115757A1
Authority
DE
Germany
Legal status (The legal status 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 status listed.)
Pending
Application number
DE19712115757
Other languages
German (de)
Other versions
DE2115757B2 (de
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 filed Critical
Priority to DE19712115757 priority Critical patent/DE2115757B2/de
Priority to CH328772A priority patent/CH543202A/de
Priority to GB1172372A priority patent/GB1348476A/en
Priority to NL7203908A priority patent/NL7203908A/xx
Priority to IT2247672A priority patent/IT950824B/it
Priority to FR7211020A priority patent/FR2132175B1/fr
Priority to LU65062D priority patent/LU65062A1/xx
Priority to SE417572A priority patent/SE366449B/xx
Priority to BE781592A priority patent/BE781592A/xx
Publication of DE2115757B2 publication Critical patent/DE2115757B2/de
Publication of DE2115757A1 publication Critical patent/DE2115757A1/de
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults
    • H04M1/745—Protection devices or circuits for voltages surges on the line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
DE19712115757 1971-03-31 1971-03-31 Schaltungsanordnung zum schutz von ueber anschlussleitungen mit gleichstrom gespeisten einrichtungenin fernmelde-, insbesondere fernsprechanlagen Pending DE2115757B2 (de)

Priority Applications (9)

Application Number Priority Date Filing Date Title
DE19712115757 DE2115757B2 (de) 1971-03-31 1971-03-31 Schaltungsanordnung zum schutz von ueber anschlussleitungen mit gleichstrom gespeisten einrichtungenin fernmelde-, insbesondere fernsprechanlagen
CH328772A CH543202A (de) 1971-03-31 1972-03-07 Schaltungsanordnung in einer Fernsprechstation, welche Anordnung einen überspannungsgeschützten und polungsunabhängig gespeisten Mikrofonverstärker in integrierter monolithischer Technik aufweist
GB1172372A GB1348476A (en) 1971-03-31 1972-03-14 Telephone subscriberstation circuit arrangements
NL7203908A NL7203908A (ref) 1971-03-31 1972-03-23
IT2247672A IT950824B (it) 1971-03-31 1972-03-28 Disposizione circuitale per proteg gere dispositivi alimentati con corrente continua tramite linee di allacciamento in impianti di tele comunicazioni specie in impianti telefonici
FR7211020A FR2132175B1 (ref) 1971-03-31 1972-03-29
LU65062D LU65062A1 (ref) 1971-03-31 1972-03-29
SE417572A SE366449B (ref) 1971-03-31 1972-03-29
BE781592A BE781592A (fr) 1971-03-31 1972-03-31 Montage pour la protection de dispositifs alimentes en courant continu par des lignes de raccordement, dans des installations de telecommunications

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712115757 DE2115757B2 (de) 1971-03-31 1971-03-31 Schaltungsanordnung zum schutz von ueber anschlussleitungen mit gleichstrom gespeisten einrichtungenin fernmelde-, insbesondere fernsprechanlagen

Publications (2)

Publication Number Publication Date
DE2115757B2 DE2115757B2 (de) 1972-06-29
DE2115757A1 true DE2115757A1 (ref) 1972-06-29

Family

ID=5803477

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712115757 Pending DE2115757B2 (de) 1971-03-31 1971-03-31 Schaltungsanordnung zum schutz von ueber anschlussleitungen mit gleichstrom gespeisten einrichtungenin fernmelde-, insbesondere fernsprechanlagen

Country Status (1)

Country Link
DE (1) DE2115757B2 (ref)

Also Published As

Publication number Publication date
DE2115757B2 (de) 1972-06-29

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