AT23477B - Circuit arrangement for telephone systems with several sub-station lines branched off from a main station line. - Google Patents

Circuit arrangement for telephone systems with several sub-station lines branched off from a main station line.

Info

Publication number
AT23477B
AT23477B AT23477DA AT23477B AT 23477 B AT23477 B AT 23477B AT 23477D A AT23477D A AT 23477DA AT 23477 B AT23477 B AT 23477B
Authority
AT
Austria
Prior art keywords
station
main
telephone systems
several sub
circuit arrangement
Prior art date
Application number
Other languages
German (de)
Original Assignee
Zwietusch E & Co 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
Priority claimed from DE1900127842D external-priority patent/DE127842C/de
Application filed by Zwietusch E & Co Gmbh filed Critical Zwietusch E & Co Gmbh
Application granted granted Critical
Publication of AT23477B publication Critical patent/AT23477B/en

Links

Landscapes

  • Interface Circuits In Exchanges (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Schaltungsanordnung für Fernsprechsysteme mit mehreren von einer Hauptsprechstellen- leitung abgezweigten Nebensprechstellenleitungen. 



   Bei der durch das Haupt-Patent Nr. 9312 geschützten Schaltung für Fernsprechsysteme mit Zentralbatterie und mehreren von einer Hauptstelle abgezweigten Nebenstellen ist es nicht ausgeschlossen, dass der zu Rufzwecken dienende, vom Amt ausgesandte Wechselstrom, auf welchen nur der Wecker der Hauptstello ansprechen soll, auch zu den   Nebenstellen   
 EMI1.1 
 ist dem Umstande zuzuschreiben, dass die Impodanzspulen und die Kondensatoren wohl eine   wirksame Verriegelung bezw.   
 EMI1.2 
   Anrufwechselstrom passieren   lassen, so dass er nicht zu   den Nebenstellen gelangen kann.   



   Auf der Zeichnung ist eine Ansführungsform der neuen Schaltung dargestellt Das 
 EMI1.3 
 für   den Anruf der Hauptstelle B   in Frage   kommenden   Teilen dargestellt. Der Stöpsel m   steckt in der erbindnngsklinke n,   so dass durch   Drücken der   Ruftaste o die zu der HauptstelleBführendenLeitungenvonderZentralbatterielab-undandieWechselstromquelle p angeschaltet werden. Der auf   diese Weise ausgesandte Rufstrom   teilt sich an den Punkten    < , r in zwei Teile, von denen einer durch   den Wecker der   Hauptstelle     B     fliesst     und diesen zum Ertönen bringt,   spulen a, b und die Polarisationsbatterie k nimmt.

   Letztere schliesst also die   Nebenstellen   C, D für den Rufstrom gewissermassen kurz, so dass ihre Wecker nicht ansprechen. 



   Die neue Schaltung könnte auch in der Weise ausgeführt werden, dass zwischen zwei 
 EMI1.4 
 und Polarisationsbatterien nur einerseits zwischen den Impedanzspulen angeschlossen anderseitsdagegengeerdetwerden.



   <Desc / Clms Page number 1>
 



  Circuit arrangement for telephone systems with several sub-station lines branched off from a main call station line.



   With the circuit protected by the main patent No. 9312 for telephone systems with a central battery and several extensions branched off from a main unit, it cannot be ruled out that the alternating current sent by the office for call purposes, to which only the alarm clock of the main unit should respond, also to the extensions
 EMI1.1
 is to be attributed to the fact that the impodance coils and the capacitors probably an effective locking respectively.
 EMI1.2
   Let AC call current pass so that it cannot get to the extensions.



   The drawing shows an embodiment of the new circuit
 EMI1.3
 for the call of the main station B in question parts shown. The plug m is in the connecting latch n, so that by pressing the call button o the lines leading to the main station B from the central battery and to the alternating current source p are switched on. The ringing current sent out in this way is divided into two parts at points <, r, one of which flows through the alarm clock of main unit B and makes it sound, coil a, b and take the polarization battery k.

   The latter so to a certain extent short-circuits the extensions C, D for the ringing current, so that their alarm clocks do not respond.



   The new circuit could also be done in such a way that between two
 EMI1.4
 and polarization batteries are only connected to one side between the impedance coils and on the other side to be grounded.

Claims (1)

PATENT. ANBPBUCH : Sclm1tungsonordnung für Fernsprechsysteme mit mehreren von einer Hauptsprechstellenleitung abgezweigten Nebensprechstellenleitungen nach dem Patent Nr. 9812, dadurch gekennzeichnet, dass zwischen den Impodanzspulen sowohl Kondensatoren als auch Polarisationszellen abgezweigt sind, zu dem Zwecke, um einerseits ein Mitsprechen in den verschiedenen Stromkreisen zu verhindern und eine Stromentnahme für die Zwecke der Nebenstellen vom Amt Über die Hauptleitung zu ermöglichen und anderseits beim Anruf der Hauptstello seitens des Amtes ein Ansprechen der Wecker der Nebenstellen zu verhindern. EMI2.1 PATENT. ANBPBUCH: Switching arrangement for telephone systems with several sub-station lines branched off from a main call station line according to Patent No. 9812, characterized in that both capacitors and polarization cells are branched off between the impodance coils for the purpose of preventing a voice in the various circuits and one To enable power consumption for the purposes of the extensions from the office via the main line and, on the other hand, to prevent the alarm clocks of the extensions from being triggered when the main office is called. EMI2.1
AT23477D 1900-06-26 1905-03-27 Circuit arrangement for telephone systems with several sub-station lines branched off from a main station line. AT23477B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1900127842D DE127842C (en) 1900-06-26

Publications (1)

Publication Number Publication Date
AT23477B true AT23477B (en) 1906-03-26

Family

ID=5662269

Family Applications (2)

Application Number Title Priority Date Filing Date
AT9312D AT9312B (en) 1900-06-26 1901-01-10 Circuit arrangement for telephone systems with several sub-station lines branched off from a main station line.
AT23477D AT23477B (en) 1900-06-26 1905-03-27 Circuit arrangement for telephone systems with several sub-station lines branched off from a main station line.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
AT9312D AT9312B (en) 1900-06-26 1901-01-10 Circuit arrangement for telephone systems with several sub-station lines branched off from a main station line.

Country Status (1)

Country Link
AT (2) AT9312B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021101254B3 (en) 2021-01-21 2022-04-07 Anton Kessel Gmbh Planing device with adjustable blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021101254B3 (en) 2021-01-21 2022-04-07 Anton Kessel Gmbh Planing device with adjustable blade

Also Published As

Publication number Publication date
AT9312B (en) 1902-10-10

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