DE3885329D1 - Fernunterbrechung und Kurzschlussgerät. - Google Patents

Fernunterbrechung und Kurzschlussgerät.

Info

Publication number
DE3885329D1
DE3885329D1 DE88303366T DE3885329T DE3885329D1 DE 3885329 D1 DE3885329 D1 DE 3885329D1 DE 88303366 T DE88303366 T DE 88303366T DE 3885329 T DE3885329 T DE 3885329T DE 3885329 D1 DE3885329 D1 DE 3885329D1
Authority
DE
Germany
Prior art keywords
conductors
pair
short circuit
tone
mode
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 - Lifetime
Application number
DE88303366T
Other languages
English (en)
Other versions
DE3885329T2 (de
Inventor
Salle Roger John La
Roger Hamline Stafford Riordan
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.)
TTEC International Pty Ltd
Original Assignee
Teletech Pty 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 Teletech Pty Ltd filed Critical Teletech Pty Ltd
Publication of DE3885329D1 publication Critical patent/DE3885329D1/de
Application granted granted Critical
Publication of DE3885329T2 publication Critical patent/DE3885329T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Alarm Systems (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Locating Faults (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Burglar Alarm Systems (AREA)
DE3885329T 1987-04-14 1988-04-14 Fernunterbrechung und Kurzschlussgerät. Expired - Lifetime DE3885329T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPI147387 1987-04-14

Publications (2)

Publication Number Publication Date
DE3885329D1 true DE3885329D1 (de) 1993-12-09
DE3885329T2 DE3885329T2 (de) 1994-05-26

Family

ID=3772120

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3885329T Expired - Lifetime DE3885329T2 (de) 1987-04-14 1988-04-14 Fernunterbrechung und Kurzschlussgerät.

Country Status (7)

Country Link
US (1) US4862491A (de)
EP (1) EP0287369B1 (de)
JP (1) JPS6447135A (de)
AT (1) ATE96963T1 (de)
CA (1) CA1282883C (de)
DE (1) DE3885329T2 (de)
ES (1) ES2050156T3 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985917A (en) * 1989-08-17 1991-01-15 Altimier Jr David F Personal artificial loop (p.a.l.)
GB9213992D0 (en) * 1992-07-01 1992-08-12 Raychem Ltd Remotely actuated switch and protection circuit
GB9218134D0 (en) * 1992-08-26 1992-10-14 Raychem Sa Nv Communication channel switching arrangement
US5550894A (en) * 1992-11-20 1996-08-27 Atlas Telecom International Ltd. Device for sequentially altering a communication line for remote diagnostic checks
US5721524A (en) * 1995-06-07 1998-02-24 Power Parts, Inc. Stator apparatus for small engine ignition system having improved grounding arrangement
GB9602247D0 (en) * 1996-02-05 1996-04-03 British Telecomm Telecommunications networks
US5771285A (en) * 1996-02-07 1998-06-23 Lucent Technologies Circuit and method for detecting telephone line status and telephone instrument embodying the same
US5825850A (en) * 1996-10-02 1998-10-20 Time Warner Entertainment Co. L.P. Automatic bypass switch for signal conductor
AUPO694997A0 (en) * 1997-05-22 1997-06-12 Teletech Pty. Ltd. Remote testing of a communications line
SE9800249L (sv) * 1998-01-29 1999-07-30 Telia Ab Förbättringar av, eller med avseende på, telekommunikationer
US6160405A (en) * 1998-03-30 2000-12-12 Jovial Test Equipment, Inc. Method and apparatus for remotely changing signal characteristics of a signal generator
US6292541B1 (en) * 1998-11-10 2001-09-18 Pittway Corporation Line shunt and ground fault apparatus method
US6212258B1 (en) * 1998-11-25 2001-04-03 Westell Technologies, Inc. Device for remotely testing a twisted pair transmission line
US7010096B1 (en) * 1999-11-24 2006-03-07 Teletech Pty., Ltd. Remote testing of a communications line
GB2368487A (en) * 2000-10-25 2002-05-01 Alan Robert Perrett Remote testing system

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3843848A (en) * 1973-01-12 1974-10-22 Magnetic Controls Co Telephone looptest system
US3912882A (en) * 1973-12-07 1975-10-14 Tm Systems Remote loop-back terminating unit for testing telephone
GB2118000B (en) * 1982-04-05 1985-10-02 Gen Electric Co Plc Telecommunication system loop-back unit
US4536703A (en) * 1982-05-27 1985-08-20 At&T Technologies, Inc. Method and apparatus for testing cable wire connected to terminals at a remote location
US4489220A (en) * 1983-06-08 1984-12-18 International Teldata Ii Corp. Test set
US4550225A (en) * 1983-10-31 1985-10-29 Keptel, Inc. AC Signal-activated switching apparatus
US4581494A (en) * 1984-10-09 1986-04-08 James A. Mayberry Telephone interface-test device
US4686696A (en) * 1985-12-02 1987-08-11 Keptel, Inc. Transmission line signal sensing circuit employing means for conserving power, especially for use with a telephone disconnect circuit, and associated method

Also Published As

Publication number Publication date
EP0287369A3 (en) 1989-09-13
ES2050156T3 (es) 1994-05-16
DE3885329T2 (de) 1994-05-26
JPS6447135A (en) 1989-02-21
US4862491A (en) 1989-08-29
EP0287369A2 (de) 1988-10-19
CA1282883C (en) 1991-04-09
ATE96963T1 (de) 1993-11-15
EP0287369B1 (de) 1993-11-03

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition