GB970273A - A circuit arrangement for sending signals through a junction line between two automatic telephone exchanges - Google Patents

A circuit arrangement for sending signals through a junction line between two automatic telephone exchanges

Info

Publication number
GB970273A
GB970273A GB10156/61A GB1015661A GB970273A GB 970273 A GB970273 A GB 970273A GB 10156/61 A GB10156/61 A GB 10156/61A GB 1015661 A GB1015661 A GB 1015661A GB 970273 A GB970273 A GB 970273A
Authority
GB
United Kingdom
Prior art keywords
relay
wire
clearing
signal
over
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
GB10156/61A
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB970273A publication Critical patent/GB970273A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Telephonic Communication Services (AREA)
GB10156/61A 1960-03-19 1961-03-20 A circuit arrangement for sending signals through a junction line between two automatic telephone exchanges Expired GB970273A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE277560 1960-03-19
US69376A US3138668A (en) 1960-03-19 1960-11-15 Circuit arrangement for signalling through telephone lines

Publications (1)

Publication Number Publication Date
GB970273A true GB970273A (en) 1964-09-16

Family

ID=26654381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10156/61A Expired GB970273A (en) 1960-03-19 1961-03-20 A circuit arrangement for sending signals through a junction line between two automatic telephone exchanges

Country Status (6)

Country Link
US (1) US3138668A (OSRAM)
BE (1) BE599895A (OSRAM)
DE (1) DE1192270B (OSRAM)
DK (1) DK95086C (OSRAM)
GB (1) GB970273A (OSRAM)
NL (1) NL259217A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1220489B (de) * 1964-03-17 1966-07-07 Siemens Ag Schaltungsanordnung fuer wechselseitig betriebene Zweidraht-Fernmelde-, insbesondereFernsprechleitungen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE863093C (de) * 1942-01-21 1953-01-15 Normalzeit G M B H Schaltungsanordnung fuer Fernmeldeanlagen mit Stoerungssignalisierung
US2409164A (en) * 1942-11-10 1946-10-08 Automatic Elect Lab Telephone system
DE817311C (de) * 1949-03-05 1951-10-18 Siemens & Halske A G Schaltanordnung zur Vermeidung von Fehlschaltungen durch gegenlaeufige Impulse
DE912940C (de) * 1951-04-28 1954-09-06 Siemens Ag Schaltungsanordnung fuer Fernsprechanlagen mit zweiadrigen Verbindungsleitungen

Also Published As

Publication number Publication date
NL259217A (OSRAM) 1964-04-27
US3138668A (en) 1964-06-23
DE1192270B (de) 1965-05-06
BE599895A (fr) 1961-05-29
DK95086C (da) 1963-01-07

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