FR2518838B1 - Module de protection pour circuits logiques de telephonie - Google Patents

Module de protection pour circuits logiques de telephonie

Info

Publication number
FR2518838B1
FR2518838B1 FR8124177A FR8124177A FR2518838B1 FR 2518838 B1 FR2518838 B1 FR 2518838B1 FR 8124177 A FR8124177 A FR 8124177A FR 8124177 A FR8124177 A FR 8124177A FR 2518838 B1 FR2518838 B1 FR 2518838B1
Authority
FR
France
Prior art keywords
logic circuits
protection module
telephony logic
telephony
module
Prior art date
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.)
Expired
Application number
FR8124177A
Other languages
English (en)
French (fr)
Other versions
FR2518838A1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
North Hills Signal Processing Corp
Original Assignee
Porta Systems 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
Priority to SE8107348A priority Critical patent/SE445409B/sv
Priority to CA000392085A priority patent/CA1187929A/en
Priority to JP56203866A priority patent/JPS58107023A/ja
Priority to GB08138001A priority patent/GB2111771B/en
Application filed by Porta Systems Corp filed Critical Porta Systems Corp
Priority to FR8124177A priority patent/FR2518838B1/fr
Priority to DE19813151539 priority patent/DE3151539A1/de
Publication of FR2518838A1 publication Critical patent/FR2518838A1/fr
Application granted granted Critical
Publication of FR2518838B1 publication Critical patent/FR2518838B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • H02H9/041—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using a short-circuiting device
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Structure Of Telephone Exchanges (AREA)
FR8124177A 1981-12-08 1981-12-23 Module de protection pour circuits logiques de telephonie Expired FR2518838B1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SE8107348A SE445409B (sv) 1981-12-08 1981-12-08 Strom- och spenningsstotskyddskrets for anvendning i samband med en telefonledning
CA000392085A CA1187929A (en) 1981-12-08 1981-12-11 Protective module for telephone logic circuits
JP56203866A JPS58107023A (ja) 1981-12-08 1981-12-14 電話保護システム
GB08138001A GB2111771B (en) 1981-12-08 1981-12-16 Surge protection circuits
FR8124177A FR2518838B1 (fr) 1981-12-08 1981-12-23 Module de protection pour circuits logiques de telephonie
DE19813151539 DE3151539A1 (de) 1981-12-08 1981-12-28 Ueberspannungs- und ueberstromschutzschaltung fuer nachrichten-, insbesondere fernsprechleitungen

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
SE8107348A SE445409B (sv) 1981-12-08 1981-12-08 Strom- och spenningsstotskyddskrets for anvendning i samband med en telefonledning
CA000392085A CA1187929A (en) 1981-12-08 1981-12-11 Protective module for telephone logic circuits
JP56203866A JPS58107023A (ja) 1981-12-08 1981-12-14 電話保護システム
GB08138001A GB2111771B (en) 1981-12-08 1981-12-16 Surge protection circuits
FR8124177A FR2518838B1 (fr) 1981-12-08 1981-12-23 Module de protection pour circuits logiques de telephonie
DE19813151539 DE3151539A1 (de) 1981-12-08 1981-12-28 Ueberspannungs- und ueberstromschutzschaltung fuer nachrichten-, insbesondere fernsprechleitungen

Publications (2)

Publication Number Publication Date
FR2518838A1 FR2518838A1 (fr) 1983-06-24
FR2518838B1 true FR2518838B1 (fr) 1985-10-18

Family

ID=27543326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8124177A Expired FR2518838B1 (fr) 1981-12-08 1981-12-23 Module de protection pour circuits logiques de telephonie

Country Status (6)

Country Link
JP (1) JPS58107023A (sv)
CA (1) CA1187929A (sv)
DE (1) DE3151539A1 (sv)
FR (1) FR2518838B1 (sv)
GB (1) GB2111771B (sv)
SE (1) SE445409B (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4538201A (en) * 1983-05-02 1985-08-27 International Standard Electric Corporation Surge protector
GB2160721B (en) * 1984-05-19 1987-08-19 Measurement Tech Ltd Protection of electrical/electronic equipment
GB8506270D0 (en) * 1985-03-11 1985-04-11 Dubilier Beswick Div Overvoltage protection arrangements
IT1215281B (it) * 1985-06-28 1990-01-31 Ates Componenti Elettron Apparecchio e metodo per la protezione da transitori di tensione/corrente.
GB8802434D0 (en) * 1988-02-03 1988-03-02 British Telecomm Protector device
GB9021222D0 (en) * 1990-09-28 1990-11-14 Raychem Ltd Circuit protection device
KR0126541Y1 (ko) * 1994-07-05 1998-10-15 정기호 접지기능을 갖는 스냅형 과전류 자동 보호장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3743888A (en) * 1972-08-24 1973-07-03 Reliable Electric Co Line protector for a communication circuit
US3852539A (en) * 1973-09-10 1974-12-03 Porta Systems Corp Line surge protection device for telephone lines
US3890543A (en) * 1973-09-14 1975-06-17 Telecommunications Ind Low voltage surge protection network
DE2405671B2 (de) * 1974-02-06 1976-08-26 Siemens AG, 1000 Berlin und 8000 München Schaltungsanordnung zum begrenzen von ueberspannungen
DE2912415A1 (de) * 1979-03-29 1980-10-09 Staco Werner Stauber Gmbh Ueberspannungs-schutzschaltung
DE2917256A1 (de) * 1979-04-27 1980-11-06 Kraftwerk Union Ag Ueberspannungsschutzeinrichtung fuer elektronische geraete

Also Published As

Publication number Publication date
FR2518838A1 (fr) 1983-06-24
DE3151539A1 (de) 1983-07-07
JPS58107023A (ja) 1983-06-25
SE445409B (sv) 1986-06-16
GB2111771A (en) 1983-07-06
CA1187929A (en) 1985-05-28
SE8107348L (sv) 1983-06-09
GB2111771B (en) 1985-04-03

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Legal Events

Date Code Title Description
ST Notification of lapse