BE841782A - Procede de protection d'un reseau de commutation telephonique contre les surcharges, circuit et autocommutateur pour la mise en oeuvre de ce procede - Google Patents

Procede de protection d'un reseau de commutation telephonique contre les surcharges, circuit et autocommutateur pour la mise en oeuvre de ce procede

Info

Publication number
BE841782A
BE841782A BE166987A BE166987A BE841782A BE 841782 A BE841782 A BE 841782A BE 166987 A BE166987 A BE 166987A BE 166987 A BE166987 A BE 166987A BE 841782 A BE841782 A BE 841782A
Authority
BE
Belgium
Prior art keywords
pabx
protecting
circuits
implementation
switching network
Prior art date
Application number
BE166987A
Other languages
English (en)
French (fr)
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
Publication of BE841782A publication Critical patent/BE841782A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/18—Automatic or semi-automatic exchanges with means for reducing interference or noise; with means for reducing effects due to line faults with means for protecting lines

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephonic Communication Services (AREA)
BE166987A 1975-05-16 1976-05-13 Procede de protection d'un reseau de commutation telephonique contre les surcharges, circuit et autocommutateur pour la mise en oeuvre de ce procede BE841782A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7515435A FR2311468A1 (fr) 1975-05-16 1975-05-16 Procede de protection d'un reseau de commutation telephonique contre les surcharges, circuits et autocommutateurs pour la mise en oeuvre de ce procede

Publications (1)

Publication Number Publication Date
BE841782A true BE841782A (fr) 1976-11-16

Family

ID=9155365

Family Applications (1)

Application Number Title Priority Date Filing Date
BE166987A BE841782A (fr) 1975-05-16 1976-05-13 Procede de protection d'un reseau de commutation telephonique contre les surcharges, circuit et autocommutateur pour la mise en oeuvre de ce procede

Country Status (9)

Country Link
US (1) US4202025A (cs)
BE (1) BE841782A (cs)
CH (1) CH617300A5 (cs)
DE (1) DE2621277C3 (cs)
ES (1) ES447927A1 (cs)
FR (1) FR2311468A1 (cs)
GB (1) GB1543991A (cs)
IT (1) IT1065853B (cs)
NL (1) NL7605176A (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965547A (en) * 1989-06-09 1990-10-23 General Electric Company Signal converter circuit
US5835324A (en) * 1997-07-14 1998-11-10 Hatton; Ken W. Programmable electronic fuse box having a key pad which does not require fuse elements
US6018514A (en) * 1998-06-29 2000-01-25 Motorola, Inc. Apparatus and method for protecting a communication device operating in an undesirable environment
US6768735B1 (en) * 2000-03-31 2004-07-27 Alcatel Method and apparatus for controlling signaling links in a telecommunications system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB749442A (en) * 1952-01-21 1956-05-23 Ericsson Telefon Ab L M Improvements in or relating to apparatus for indicating abnormal operation of one or more electrical devices within a group of such devices
US2912557A (en) * 1958-02-20 1959-11-10 Gen Electric Electric cooking appliance
US2976368A (en) * 1958-11-17 1961-03-21 Bell Telephone Labor Inc Incoming trunk circuit for in-dialing service
US3042837A (en) * 1958-11-17 1962-07-03 Gen Electric Fail safe overload protective system
US3083319A (en) * 1959-12-24 1963-03-26 Gen Electric Temperature responsive system
US3182201A (en) * 1960-12-01 1965-05-04 Sklar Bernard Apparatus for detecting localized high temperatures in electronic components
US3181364A (en) * 1962-07-31 1965-05-04 Rca Corp Apparatus for measuring differential temperature
US3321641A (en) * 1964-05-18 1967-05-23 Gen Electric Snap-action trigger circuit for semiconductor switching devices
US3379939A (en) * 1965-10-21 1968-04-23 Texas Instruments Inc Fail safe controller
GB1302235A (cs) * 1970-09-17 1973-01-04
US3703651A (en) * 1971-07-12 1972-11-21 Kollmorgen Corp Temperature-controlled integrated circuits
US3916263A (en) * 1971-12-13 1975-10-28 Honeywell Inf Systems Memory driver circuit with thermal protection
US3863033A (en) * 1973-04-30 1975-01-28 Gte Automatic Electric Lab Inc Step-by-step telephone central exchanges for use with pcm communication networks
US3835458A (en) * 1973-12-03 1974-09-10 D Mrazek Die temperature controlled programming of ic memory device
US3927571A (en) * 1974-01-18 1975-12-23 Hobart Corp Temperature indicating device
US3914559A (en) * 1974-11-07 1975-10-21 Bell Telephone Labor Inc Universal PBX line circuit for key and non-key service

Also Published As

Publication number Publication date
DE2621277C3 (de) 1979-08-30
IT1065853B (it) 1985-02-25
US4202025A (en) 1980-05-06
ES447927A1 (es) 1977-06-16
GB1543991A (en) 1979-04-11
CH617300A5 (cs) 1980-05-14
DE2621277B2 (de) 1979-01-11
NL7605176A (nl) 1976-11-18
DE2621277A1 (de) 1976-11-18
FR2311468B1 (cs) 1977-12-09
FR2311468A1 (fr) 1976-12-10

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