GB1005753A - A circuit arrangement for the operation of electro-magnetic switching matrices in telephone systems - Google Patents

A circuit arrangement for the operation of electro-magnetic switching matrices in telephone systems

Info

Publication number
GB1005753A
GB1005753A GB4209461A GB4209461A GB1005753A GB 1005753 A GB1005753 A GB 1005753A GB 4209461 A GB4209461 A GB 4209461A GB 4209461 A GB4209461 A GB 4209461A GB 1005753 A GB1005753 A GB 1005753A
Authority
GB
United Kingdom
Prior art keywords
transistors
electro
circuit arrangement
telephone systems
magnetic switching
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
GB4209461A
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 GB1005753A publication Critical patent/GB1005753A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/0008Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

1,005,753. Automatic exchange systems. TELEFUNKEN PATENTVERWERTUNGS G.m.b.H. Nov. 24, 1961 [Dec. 14, 1960], No. 42094/61. Heading H4K. An arrangement for interconnecting a number of subscriber's lines and a small number of exchange lines, as in a concentrator system, comprises an electromagnetic cross-point switch for each exchange line, represented by relays I, II, the magnets being controlled by transistors x 1 , x 2 . . . y 1 , y 2 . . . which are common respectively to the columns and rows of the switches. The transistors x 1 , x 2 . . . are preferably of PNP-type while y 1 , y 2 . . . are preferably of NPN-type, and the latter may, if necessary, be controlled through further transistors z 1 , z 2 . . . acting as invertors. The armatures are released upon brief excitation of the controlling magnets and are retained until re-set by a common electromagnet. Specification 891,873 is referred to.
GB4209461A 1960-12-14 1961-11-24 A circuit arrangement for the operation of electro-magnetic switching matrices in telephone systems Expired GB1005753A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET19431A DE1128478B (en) 1960-12-14 1960-12-14 Circuit arrangement for activating the coupling points of electromagnetically controllable coupling fields with adhesive properties in telephone exchanges with apron devices, in particular with dialing star switches

Publications (1)

Publication Number Publication Date
GB1005753A true GB1005753A (en) 1965-09-29

Family

ID=7549315

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4209461A Expired GB1005753A (en) 1960-12-14 1961-11-24 A circuit arrangement for the operation of electro-magnetic switching matrices in telephone systems

Country Status (3)

Country Link
CH (1) CH387708A (en)
DE (1) DE1128478B (en)
GB (1) GB1005753A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255730B (en) * 1965-11-17 1967-12-07 Standard Elektrik Lorenz Ag Circuit arrangement for a multi-stage regular coupling arrangement
DE1187275B (en) * 1963-11-02 1965-02-18 Telefunken Patent Circuit arrangement for activating the individually electromagnetically controllable coupling elements with adhesive properties of a multiple coordinate switch in telecommunication systems, in particular telephone dialing systems
DE1296214B (en) * 1967-02-27 1969-05-29 Siemens Ag Circuit arrangement for telecommunications systems, in particular telephone exchanges with multi-stage coupling devices

Also Published As

Publication number Publication date
CH387708A (en) 1965-02-15
DE1128478B (en) 1962-04-26

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