AT69605B - Circuit arrangement for telephone systems. - Google Patents

Circuit arrangement for telephone systems.

Info

Publication number
AT69605B
AT69605B AT69605DA AT69605B AT 69605 B AT69605 B AT 69605B AT 69605D A AT69605D A AT 69605DA AT 69605 B AT69605 B AT 69605B
Authority
AT
Austria
Prior art keywords
circuit arrangement
telephone systems
desc
page number
capacitors
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 AT69605B publication Critical patent/AT69605B/en

Links

Landscapes

  • Telephone Function (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Interface Circuits In Exchanges (AREA)

Description

  

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 des   Leitungswählers   durch Erregung des Auslösemagneten M über      und   02'bewirken,   bevor sich der angerufene Teilnehmer gemeldet hat. 



   PATENT-ANSPRÜCHE :
1. Schaltungsanordnung für Fernsprechanlagen, bei denen eine schädliche Einwirkung der durch den unterbrochenen Rufstrom (Wechselstrom) bewirkten Ladung von in der Leitung verbleibendenKondensatorenaufdieVerbindungsapparatedurchSchaltungsänderungen verhindert wird, dadurch gekennzeichnet, dass die durch den Rufstrom erfolgende Ladung der Kondensatoren durch eine Ausgleichsladung (entgegengesetzte Ladung, Kurzschliessen der Kondensatoren, Anlegen von Erde) vor der Wiederanschaltung der Verbindungsapparate vernichtet ist. 
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



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 of the line selector by exciting the release magnet M via and 02 'before the called subscriber has reported.



   PATENT CLAIMS:
1. Circuit arrangement for telephone systems in which a harmful effect of the charge of the capacitors remaining in the line caused by the interrupted ringing current (alternating current) on the connection apparatus is prevented by circuit changes, characterized in that the charging of the capacitors caused by the ringing current is prevented by an equalizing charge (opposite charge, short-circuiting of the Capacitors, application of earth) is destroyed before the connection apparatus is reconnected.
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** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT69605D 1913-02-06 1914-02-06 Circuit arrangement for telephone systems. AT69605B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE69605X 1913-02-06

Publications (1)

Publication Number Publication Date
AT69605B true AT69605B (en) 1915-08-25

Family

ID=5635072

Family Applications (1)

Application Number Title Priority Date Filing Date
AT69605D AT69605B (en) 1913-02-06 1914-02-06 Circuit arrangement for telephone systems.

Country Status (1)

Country Link
AT (1) AT69605B (en)

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