AT47788B - Circuit arrangement for telephone lines in automatic telephone systems. - Google Patents

Circuit arrangement for telephone lines in automatic telephone systems.

Info

Publication number
AT47788B
AT47788B AT47788DA AT47788B AT 47788 B AT47788 B AT 47788B AT 47788D A AT47788D A AT 47788DA AT 47788 B AT47788 B AT 47788B
Authority
AT
Austria
Prior art keywords
telephone
circuit arrangement
automatic
systems
lines
Prior art date
Application number
Other languages
German (de)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of AT47788B publication Critical patent/AT47788B/en

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Landscapes

  • Telephone Set Structure (AREA)

Description

  

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 dass die Systeme Wa und Wb im gleichen Amte liegen, da sie ja untereinander unabhängige Systeme darstellen. Wb kann    z.'-B.,   unter Umständen auch von anderer Stelle' z. B. vom Amte aus, eingestellt    worden,,  
Um Störungen in den Verbindungen   in vermeiden, kann   durch bekannte Mittel verhindert werden, dass der Schalter U umgelegt wird, nachdem der Hörer vom Hakenumschalter abgenommen ist.



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 that the systems Wa and Wb are in the same office, since they represent independent systems. Wb can e.g., under certain circumstances also from another place 'z. B. from the office, has been set,
In order to avoid disturbances in the connections in, known means can be used to prevent switch U from being thrown after the receiver has been removed from the hook switch.

Claims (1)

PATENT-ANSPRUCH : Schaltungsanordnung für Fernsprechleitungen bei selbsttätigen Fernsprechanlagen, dadurch gekennzeichnet, dass die Zweige (o, b) der in eine Sprechstelle (H1) einmündenden Fernsprechleitung an einen Umschalter (U) geführt sind, durch den Teilnehmermikrophon (Sp) und Impulssender (k) nach Wahl an einen der Leitungszweige (z. B. a) gelegt werden, während in den anderen ein Gleichstromverriegelungsorgan (10) eingeschaltet wird, zum Zwecke, die Einstellung zweier von einander unabhängiger selbsttätiger Wahlschaltereinrichtungen (Wa, Wb) über die eine Doppelleitung möglich za machen. EMI2.1 PATENT CLAIM: Circuit arrangement for telephone lines in automatic telephone systems, characterized in that the branches (o, b) of the telephone line opening into a telephone station (H1) are routed to a switch (U), through the subscriber microphone (Sp) and pulse transmitter (k) of your choice one of the branches of the line (e.g. a) can be placed while a direct current locking device (10) is switched on in the other, for the purpose of making the setting of two independent automatic selector switch devices (Wa, Wb) via a double line possible. EMI2.1
AT47788D 1909-07-01 1910-06-01 Circuit arrangement for telephone lines in automatic telephone systems. AT47788B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE47788X 1909-07-01

Publications (1)

Publication Number Publication Date
AT47788B true AT47788B (en) 1911-05-10

Family

ID=5625771

Family Applications (1)

Application Number Title Priority Date Filing Date
AT47788D AT47788B (en) 1909-07-01 1910-06-01 Circuit arrangement for telephone lines in automatic telephone systems.

Country Status (1)

Country Link
AT (1) AT47788B (en)

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