GB989739A - A telephone system with line concentrator stations - Google Patents

A telephone system with line concentrator stations

Info

Publication number
GB989739A
GB989739A GB4177561A GB4177561A GB989739A GB 989739 A GB989739 A GB 989739A GB 4177561 A GB4177561 A GB 4177561A GB 4177561 A GB4177561 A GB 4177561A GB 989739 A GB989739 A GB 989739A
Authority
GB
United Kingdom
Prior art keywords
concentrator
exchange
telephone system
nov
line concentrator
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
GB4177561A
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.)
Telefunken Patentverwertungs GmbH
Original Assignee
Telefunken Patentverwertungs GmbH
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 Telefunken Patentverwertungs GmbH filed Critical Telefunken Patentverwertungs GmbH
Publication of GB989739A publication Critical patent/GB989739A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

989,739. Automatic exchange systems. TELEFUNKEN PATENTVERWERTUNGSG.m.b.H. Nov. 22, 1961 [Nov. 26, 1960], No. 41775/61. Heading H4K. In a concentrator system, electronic scanning switches SW 1 , SW 2 at the concentrator and at the exchange operate under the control of a common pulse generator JG 1 of comparatively low frequency through pulse multipliers JV 1 , JV 2 and the switches are brought into synchronism if necessary when a calling condition is found by a signal identifying the subscriber concerned. The pulse generator JG 1 may be located either at the concentrator or at the exchange and an idle speech line may be used for the transmission of pulses between the two.
GB4177561A 1960-11-26 1961-11-22 A telephone system with line concentrator stations Expired GB989739A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET19335A DE1134720B (en) 1960-11-26 1960-11-26 Circuit arrangement for the control of two interconnected electronic dialing devices in telecommunications systems, in particular telephone systems, with apron devices

Publications (1)

Publication Number Publication Date
GB989739A true GB989739A (en) 1965-04-22

Family

ID=7549278

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4177561A Expired GB989739A (en) 1960-11-26 1961-11-22 A telephone system with line concentrator stations

Country Status (3)

Country Link
CH (1) CH388395A (en)
DE (1) DE1134720B (en)
GB (1) GB989739A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1233446B (en) * 1965-07-01 1967-02-02 Siemens Ag Method and circuit arrangement for the transmission of information over two-wire lines in telecommunication systems, in particular dialing codes in telephone systems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL87007C (en) * 1952-08-16
DE1086292B (en) * 1959-01-14 1960-08-04 Merk Ag Telefonbau Friedrich Circuit arrangement for transmitting criteria for the setting of two electronic dialing devices connected to one another via at least two connecting lines in telecommunications systems, in particular telephone systems, with apron systems
NL124530C (en) * 1959-01-19 1968-09-16

Also Published As

Publication number Publication date
DE1134720B (en) 1962-08-16
CH388395A (en) 1965-02-28

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