FI110906B - Fjärrstyrd brytare och skyddskrets - Google Patents

Fjärrstyrd brytare och skyddskrets Download PDF

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Publication number
FI110906B
FI110906B FI946187A FI946187A FI110906B FI 110906 B FI110906 B FI 110906B FI 946187 A FI946187 A FI 946187A FI 946187 A FI946187 A FI 946187A FI 110906 B FI110906 B FI 110906B
Authority
FI
Finland
Prior art keywords
switching
voltage
lines
circuit
circuits
Prior art date
Application number
FI946187A
Other languages
English (en)
Finnish (fi)
Other versions
FI946187A (sv
FI946187A0 (sv
Inventor
Dennis Malcolm Pryor
Michael Challis
Original Assignee
Raychem Ltd
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 Raychem Ltd filed Critical Raychem Ltd
Publication of FI946187A publication Critical patent/FI946187A/sv
Publication of FI946187A0 publication Critical patent/FI946187A0/sv
Application granted granted Critical
Publication of FI110906B publication Critical patent/FI110906B/sv

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • H02H3/10—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current additionally responsive to some other abnormal electrical conditions
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/301—Circuit arrangements at the subscriber's side of the line
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Selective Calling Equipment (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electronic Switches (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Claims (10)

1. Brytararrangemang (1) som mellan terminalutrustnings-uppsättningar kan kopplas i en kommunikationskanal 5 omfattande ett par linjer, vilket brytararrangemang omfattar: (i) ett par seriekopplingskretsar (2) , av vilka vardera kan seriekopplas till en av linjerna, och vilka öppnas när den ena linjen utsätts för en överström; 10 och/eller (ii) en eller flera shuntbrytarkretsar (4) som kopplats mellan linjerna eller mellan den ena eller bäda linjerna och jorden, och som slutes dä de utsätts för en överspänning i den ena av linjerna; 15 kännetecknat av att brytarkretsen eller vardera brytar-kretsen kan fjärrstyras medelst en testsignal som sänds i kanalen.
2. Arrangemang enligt patentkrav 1, kännetecknat av att ; · 20 det i varje seriekopplingskrets (2) ingär en brytartran- > sistor (Tl, T2, T3), vars bas- eller grindspänning styrs ; med ett överströmstyrelement (Rl, T4) , som kopplas pä, ; ‘ när kopplingskretsen utsätts för en överström, och sälun- da fränkopplar brytartransistorn. 25 • f
3. Arrangemang enligt patentkrav 2, kännetecknat av att överströmstyrelement utgörs av en transistor (T4), vars bas eller grind hälls i en spänningsdelare som reglerar seriekopplingsskretsen sä, att dess basemitter eller • « \ 1 30 grindkällsspänning ökar med strömmen i linjen. • » » <
4. Arrangemang enligt patentkrav 2 eller 3, kännetecknat av att det i varje seriekopplingskrets ingär ett test- . . styrningselement (T5), som ocksä styr bas- eller grind- 3. spänningen i brytartransistorn (Tl, T2, T3) , vilket teststyrningselement kopplas pä som respons pä en testsignal . 19 110906
5. Arrangemang enligt nägot av patentkraven 1-4, känne-tecknat av att det innefattar en DC-spänningsfönster-detektorkrets som är kopplad mellan linjerna och som 5 tilläter att en Ström gar genom den endast när spänningen mellan linjerna ligger inom ett i förväg definierat band, vilken genom fönsterdetektorkretsen gäende Ström aktiverar brytarkretsarna (Tl, T2, T3).
6. Arrangemang enligt nägot av patentkraven 1-5, känne- tecknat av att shuntbrytarkretsen (4) kopplar linjerna via en distinkt slutpunkt aktiverad av en testsignal.
7. Arrangemang enligt nägot av patentkraven 1-6, känne-15 tecknat av att shuntbrytarkretsen (4) omfattar en triak (TRI), som är kopplad mellan linjerna.
8. Arrangemang enligt patentkrav 5, kännetecknat av att fönsterdetektorkretsen (3) är kopplad tili avbrytar- : '· 20 kretsen/-arna (2) via en optoelektrisk omkopplare.
9. Arrangemang enligt nägot av patentkraven 1-8, känne- : tecknat av att var och en avbrytarkrets (2) innefattar en .:. kondensator (C2) som är kopplad tili en ingängsanslutning 25. teststyrningstransistorn, varvid kondensatorn laddas med DC-signalen när avbrytarkretsarna aktiveras och häller brytarkretsen öppen under en tidsperiod efter att DC-signalen upphört.
10. En uppsättning arrangemang enligt nägot av patentkra ven 1-9, kännetecknad av att de är kopplade tili en ' kommunikationskanal för att uppdela kanalen i delar för att lokalisera ett f el, varvid vart och ett arrangemang •· har ett separat DC-spänningsaktiveringsfönster som skil- 35 jer sig frän ett annat arrangemang eller de andra arran-,,. gemangen.
FI946187A 1992-07-01 1994-12-30 Fjärrstyrd brytare och skyddskrets FI110906B (sv)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9213992 1992-07-01
GB929213992A GB9213992D0 (en) 1992-07-01 1992-07-01 Remotely actuated switch and protection circuit
GB9301371 1993-01-25
PCT/GB1993/001371 WO1994001960A1 (en) 1992-07-01 1993-06-30 Remotely actuated switch and protection circuit

Publications (3)

Publication Number Publication Date
FI946187A FI946187A (sv) 1994-12-30
FI946187A0 FI946187A0 (sv) 1994-12-30
FI110906B true FI110906B (sv) 2003-04-15

Family

ID=10718036

Family Applications (1)

Application Number Title Priority Date Filing Date
FI946187A FI110906B (sv) 1992-07-01 1994-12-30 Fjärrstyrd brytare och skyddskrets

Country Status (22)

Country Link
US (1) US5604785A (sv)
EP (1) EP0649584B1 (sv)
JP (1) JPH07508624A (sv)
CN (1) CN1076920C (sv)
AT (1) ATE170029T1 (sv)
AU (1) AU681587B2 (sv)
BG (1) BG99314A (sv)
BR (1) BR9306640A (sv)
CA (1) CA2139435A1 (sv)
CZ (1) CZ334894A3 (sv)
DE (1) DE69320479T2 (sv)
ES (1) ES2120507T3 (sv)
FI (1) FI110906B (sv)
GB (1) GB9213992D0 (sv)
HU (1) HUT73888A (sv)
IL (1) IL106194A (sv)
MY (1) MY113346A (sv)
NO (1) NO945081D0 (sv)
NZ (1) NZ253746A (sv)
SK (1) SK160894A3 (sv)
TW (1) TW232107B (sv)
WO (1) WO1994001960A1 (sv)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9223770D0 (en) * 1992-11-12 1992-12-23 Raychem Ltd Communication channel testing arrangement
GB9403646D0 (en) * 1994-02-25 1994-04-13 Raychem Ltd Switching device for telecommunications channel
US5809109A (en) * 1995-06-01 1998-09-15 Advanced Micro Devices, Inc. Integrated ring sensor with fault detection
US5717752A (en) * 1995-06-30 1998-02-10 Siemens Components Data access arrangement
US5867557A (en) * 1996-05-17 1999-02-02 Texas Instruments Incorporated Remotely controlled communication line diagnostic apparatus and method
FR2754662B1 (fr) * 1996-10-14 1998-12-04 Henri Depaepe Sa Terminal de telecommunications d'essais
SE507739C2 (sv) * 1996-11-08 1998-07-06 Ericsson Telefon Ab L M Anordning vid en linjekrets för mätning av linjespänning
SG74050A1 (en) * 1998-05-06 2000-07-18 Compaq Computer Corp Analog modem overcurrent protection against digital-line current
DE19843601A1 (de) * 1998-09-23 2000-03-30 Alcatel Sa Netzabschlußeinrichtung eines Telekommunikationsnetzes
US6278769B1 (en) 1998-11-25 2001-08-21 Westell Technologies, Inc. Signaling method for invoking a test mode in a network interface unit
US6212258B1 (en) * 1998-11-25 2001-04-03 Westell Technologies, Inc. Device for remotely testing a twisted pair transmission line
US6181775B1 (en) * 1998-11-25 2001-01-30 Westell Technologies, Inc. Dual test mode network interface unit for remote testing of transmission line and customer equipment
US6411680B1 (en) * 1999-03-26 2002-06-25 Tempo Europe Limited Telephonic apparatus and input device for telephonic apparatus
WO2000069152A1 (en) * 1999-05-10 2000-11-16 Westell Technologies, Inc. Signaling method for invoking a test mode in a network interface unit
US6177875B1 (en) * 1999-09-28 2001-01-23 Rockwell Technologies, Llc Simple voltage window sensing circuit
US6614881B1 (en) 2000-10-17 2003-09-02 Tyco Electronics Corporation Remotely operable telecommunications conductor test circuit and method for using the same
DE102005037047B3 (de) * 2005-08-05 2006-12-28 Novar Gmbh Gebäudeleittechnik- oder Gefahrenmeldeanlage
US9136796B2 (en) * 2013-06-18 2015-09-15 Texas Instruments Incorporated Negative audio signal voltage protection circuit and method for audio ground circuits
US11121547B2 (en) 2019-04-02 2021-09-14 Analog Devices International Unlimited Company Device and method for overvoltage protection

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US3725613A (en) * 1971-02-25 1973-04-03 Rochester Tel Corp Apparatus for protecting and testing telephone network
US4143250A (en) * 1976-12-13 1979-03-06 Tii Corporation Telephone isolation system
US4197435A (en) * 1978-02-24 1980-04-08 Jackson Amos R Telephone line monitoring circuit and method
US4169220A (en) * 1978-10-02 1979-09-25 Fields Gary C Telephone instrument connection block with remotely actuated line test
JPS57103565U (sv) * 1980-12-16 1982-06-25
JPS5918248A (ja) * 1982-07-22 1984-01-30 Nippon Denso Co Ltd 内燃機関の燃料噴射制御方法
US4489221A (en) * 1982-08-23 1984-12-18 Micro Computer Systems, Inc. Telephone line/subscriber equipment disconnect apparatus
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US4582960A (en) * 1984-05-17 1986-04-15 Porta Systems Corp. Subscriber network interface device
US4653084A (en) * 1984-07-20 1987-03-24 Om Ahuja Remote actuated switch
US4669111A (en) * 1984-07-20 1987-05-26 Om Ahuja Polarity ring director
DE3513598A1 (de) * 1985-04-16 1986-10-16 Neumann Elektronik GmbH, 4330 Mülheim Einrichtung zur pruefung einer fernmeldeleitung zwischen einer vermittlungsstelle und einem teilnehmeranschluss von der vermittlungsstelle aus
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GB2181625A (en) * 1985-10-15 1987-04-23 Teradyne Inc Apparatus for connecting and disconnecting telephone equipment
US4862491A (en) * 1987-04-14 1989-08-29 Teletech Pty. Ltd. Remote disconnection and short-circuiting apparatus and method
US4807277A (en) * 1987-05-15 1989-02-21 Keptel, Inc. Remotely activated switching apparatus
CA1260171A (en) * 1987-05-15 1989-09-26 Reinhard W. Rosch Protection arrangement for a telephone subscriber line interface circuit
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WO1992007402A1 (en) * 1990-10-12 1992-04-30 Raychem Limited Circuit protection arrangement
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Also Published As

Publication number Publication date
FI946187A (sv) 1994-12-30
CN1076920C (zh) 2001-12-26
AU4507293A (en) 1994-01-31
DE69320479T2 (de) 1999-04-29
TW232107B (sv) 1994-10-11
ES2120507T3 (es) 1998-11-01
NO945081L (no) 1994-12-29
CN1085701A (zh) 1994-04-20
EP0649584A1 (en) 1995-04-26
HU9403806D0 (en) 1995-02-28
NZ253746A (en) 1996-05-28
SK160894A3 (en) 1995-09-13
JPH07508624A (ja) 1995-09-21
HUT73888A (en) 1996-10-28
IL106194A (en) 1996-10-16
EP0649584B1 (en) 1998-08-19
MY113346A (en) 2002-01-31
BR9306640A (pt) 1998-12-08
BG99314A (en) 1995-10-31
DE69320479D1 (de) 1998-09-24
AU681587B2 (en) 1997-09-04
GB9213992D0 (en) 1992-08-12
NO945081D0 (no) 1994-12-29
US5604785A (en) 1997-02-18
CZ334894A3 (en) 1995-08-16
WO1994001960A1 (en) 1994-01-20
ATE170029T1 (de) 1998-09-15
IL106194A0 (en) 1993-10-20
FI946187A0 (sv) 1994-12-30
CA2139435A1 (en) 1994-01-20

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