GB773558A - Monitoring arrangements for telecommunication switching systems - Google Patents

Monitoring arrangements for telecommunication switching systems

Info

Publication number
GB773558A
GB773558A GB37684/54A GB3768454A GB773558A GB 773558 A GB773558 A GB 773558A GB 37684/54 A GB37684/54 A GB 37684/54A GB 3768454 A GB3768454 A GB 3768454A GB 773558 A GB773558 A GB 773558A
Authority
GB
United Kingdom
Prior art keywords
relay
magnet
register
release
recording
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
GB37684/54A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB773558A publication Critical patent/GB773558A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Relay Circuits (AREA)
GB37684/54A 1953-12-30 1954-12-30 Monitoring arrangements for telecommunication switching systems Expired GB773558A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE773558X 1953-12-30

Publications (1)

Publication Number Publication Date
GB773558A true GB773558A (en) 1957-04-24

Family

ID=20333414

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37684/54A Expired GB773558A (en) 1953-12-30 1954-12-30 Monitoring arrangements for telecommunication switching systems

Country Status (5)

Country Link
US (1) US2873322A (enExample)
DE (1) DE1137774B (enExample)
FR (1) FR1145128A (enExample)
GB (1) GB773558A (enExample)
NL (1) NL193626A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153800B (de) * 1961-08-01 1963-09-05 Siemens Ag Schaltungsanordnung fuer Fernmeldevermittlungsanlagen, insbesondere Fernsprechwaehlanlagen, in denen Verbindungswege unter dem Einfluss von Markierern, Einstelleinrichtungen od. dgl. durchgeschaltet werden

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3159721A (en) * 1960-07-13 1964-12-01 Bell Telephone Labor Inc Outgoing trunk identification circuit
DE1236600B (de) * 1965-07-17 1967-03-16 Standard Elek K Lorenz Ag Verfahren und Schaltungsanordnung zur UEberwachung des Verbindungsaufbaues in einer durch Markierer zentral gesteuerten Koppelanordnung
US4048451A (en) * 1976-03-19 1977-09-13 Bell Telephone Laboratories, Incorporated Arrangement for monitoring live call disposition signals

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE577640C (de) * 1931-03-16 1933-06-02 Standard Elek Zitaets Ges A G Schaltungsanordnung zum Pruefen von Leitungen in Fernsprechanlagen
US2585904A (en) * 1948-10-29 1952-02-19 Bell Telephone Labor Inc Crossbar telephone system
US2508052A (en) * 1948-10-29 1950-05-16 Bell Telephone Labor Inc Trouble recorder control circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1153800B (de) * 1961-08-01 1963-09-05 Siemens Ag Schaltungsanordnung fuer Fernmeldevermittlungsanlagen, insbesondere Fernsprechwaehlanlagen, in denen Verbindungswege unter dem Einfluss von Markierern, Einstelleinrichtungen od. dgl. durchgeschaltet werden

Also Published As

Publication number Publication date
US2873322A (en) 1959-02-10
FR1145128A (fr) 1957-10-22
NL193626A (enExample)
DE1137774B (de) 1962-10-11

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