AT234169B - Circuit arrangement for an automatic switching system - Google Patents

Circuit arrangement for an automatic switching system

Info

Publication number
AT234169B
AT234169B AT775662A AT775662A AT234169B AT 234169 B AT234169 B AT 234169B AT 775662 A AT775662 A AT 775662A AT 775662 A AT775662 A AT 775662A AT 234169 B AT234169 B AT 234169B
Authority
AT
Austria
Prior art keywords
conductors
light source
group
permeable
photoconductive
Prior art date
Application number
AT775662A
Other languages
German (de)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Application granted granted Critical
Publication of AT234169B publication Critical patent/AT234169B/en

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Description

  

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    Schaltungsanordnung für.   ein   selbsttätiges Schaltsystem   
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 und B1 kann also unabhängig von einer bereits bestehenden Verbindung zwischen den Endschaltungen A1 und B2 hergestellt werden. 



   Das Unterbrechen einer Verbindung erfolgt durch das Öffnen eines der Ruhekontakte 15 oder 16, wodurch dasRelaisRoderS abfällt und der Arbeitskontakt von rl oder sl den Haltekreis der Lichtquelle unterbricht.



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    Circuit arrangement for. an automatic switching system
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 and B1 can therefore be established independently of an existing connection between the end circuits A1 and B2.



   A connection is interrupted by opening one of the normally closed contacts 15 or 16, whereby the relay R or S drops out and the normally open contact of rl or sl interrupts the hold circuit of the light source.

 

Claims (1)

PATENTANSPRUCH : Schaltungsanordnung für ein selbsttätiges Schaltsystem, z. B. Fernsprechsystem, zur wahlweisen Herstellung elektrischer Verbindungen zwischen Leitern einer ersten Gruppe und Leitern einer zweiten Gruppe über photoleitende Elemente, dadurch gekennzeichnet, dass zwischen den den Leitern der ersten Gruppe zugeordneten Steuerleitern und den den Leitern der zweiten Gruppe zugeordneten Steuerleitern je eine Lichtquelle in Reihe mit einem nur in einer Richtung durchlässigen Element geschaltet ist, welche Lichtquelle mit photoleitenden Elementen, die zwischen den Steuerleitern entsprechenden Leitern der zwei Gruppen geschaltet sind, optisch gekoppelt ist, PATENT CLAIM: Circuit arrangement for an automatic switching system, e.g. B. telephone system, for the optional establishment of electrical connections between conductors of a first group and conductors of a second group via photoconductive elements, characterized in that between the control conductors assigned to the conductors of the first group and the control conductors assigned to the conductors of the second group each have a light source in series is connected to an element permeable in only one direction, which light source is optically coupled to photoconductive elements which are connected between the control conductors corresponding conductors of the two groups, wobei der Verbindungspunkt zwischen jeder Lichtquelle und dem in einer Richtung durchlässigen Element über ein mit der Lichtquelle optisch gekoppeltes photoleitendes Element mit einem Punkt konstanten Potentials verbunden ist und Wählschaltungen zur wahlweisen Herstellung eines Erregungsstromkreises für eine ausgewählte Lichtquelle über die beiden dazu gehörigen Steuerleiter und das nur in einer Richtung durchlässige Element und Umschaltkontakte zur Herstellung eines Haltestromkreises über einen der beiden Steuerleiter und das mit der Lichtquelle in Reihe liegende photoleitende Element vorhanden sind, in welchem Haltestromkreis der Haltestrom umgekehrte Polarität hat wie der Erregungsstrom. wherein the connection point between each light source and the element which is permeable in one direction is connected to a point of constant potential via a photoconductive element which is optically coupled to the light source and selection circuits for the optional production of an excitation circuit for a selected light source via the two associated control conductors and only in one direction permeable element and changeover contacts for producing a holding circuit via one of the two control conductors and the photoconductive element lying in series with the light source are present, in which holding circuit the holding current has the opposite polarity as the excitation current.
AT775662A 1961-10-02 1962-10-01 Circuit arrangement for an automatic switching system AT234169B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL234169X 1961-10-02

Publications (1)

Publication Number Publication Date
AT234169B true AT234169B (en) 1964-06-25

Family

ID=19780154

Family Applications (1)

Application Number Title Priority Date Filing Date
AT775662A AT234169B (en) 1961-10-02 1962-10-01 Circuit arrangement for an automatic switching system

Country Status (1)

Country Link
AT (1) AT234169B (en)

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