AT76920B - Circuit arrangement for self-connecting telephone systems. - Google Patents

Circuit arrangement for self-connecting telephone systems.

Info

Publication number
AT76920B
AT76920B AT76920DA AT76920B AT 76920 B AT76920 B AT 76920B AT 76920D A AT76920D A AT 76920DA AT 76920 B AT76920 B AT 76920B
Authority
AT
Austria
Prior art keywords
self
circuit arrangement
telephone systems
connecting telephone
call
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 AT76920B publication Critical patent/AT76920B/en

Links

Landscapes

  • Monitoring And Testing Of Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)

Description

  

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 EMI2.1 
 enthaltenden Anreizleitung ab und diese über Kontakt 9 auf den nächsten freien Anrufsucher der Gruppe durch. Das   Prüfrelais   P schliesst ferner über Kontakt 10 seine hochohmige Wicklung 3 kurz und sperrt dadurch die anrufende Leitung gegen Belegung von anderer Seite. Ausserdem schaltet das Relais P auch noch die Sprechleitung a, b an den von ihm   beeinflussten   Kontakten 11 und 12 zum Gruppenwähler durch und öffnet am Kontakt 13 den Stromkreis des Drehmagneten D, wodurch dieser abgeschaltet und der prüfende   Anrufsucher stillgesetzt   wird. Gleichzeitig wird beim Aberregen von An auch Kontakt 1 geöffnet, wodurch auch alle anderen Sucher angehalten werden. 



   Nach Beendigung des Gespräches erfolgt die Freigabe des benutzten Anrufsuchers AS 
 EMI2.2 
 dass nunmehr auch die von diesen Relais gesteuerten Kontakte wieder ihre Anfangslage   einnehmen   und der Aurufsucher zu neuer Inanspruchnahme bereitsteht. 



   PATENT. ANSPRÜCHE :
1. Schaltungsanordnung für Selbstanschluss-Fernsprechanlagen. bei denen durch einen Anruf sämtliche zur Zeit freien von den der   Teilnehmergruppe   des Anrufenden gemeinsam zugeordneten Aurufsuchern in Bewegung gesetzt und wieder angehalten werden, sobald einer dieser Anrufsucher die anrufende Leitung erreicht hat, dadurch gekennzeichnet, dass die   Prüfrelais     P   sämtlicher Anrufsucher (AS) einer   Teimehmergruppe   in Kettenschaltung miteinander verbunden sind.



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 containing incentive line and this through contact 9 to the next free call seeker of the group. The test relay P also short-circuits its high-resistance winding 3 via contact 10 and thereby blocks the calling line against occupation from the other side. In addition, the relay P also switches the speech line a, b to the contacts 11 and 12 influenced by it through to the group selector and opens the circuit of the rotary magnet D at contact 13, which switches it off and the checking caller is stopped. At the same time, when An is de-energized, contact 1 is also opened, which also stops all other viewfinders.



   After the call has ended, the used call finder AS is released
 EMI2.2
 that now the contacts controlled by these relays also resume their initial position and the call seeker is ready for new use.



   PATENT. EXPECTATIONS :
1. Circuit arrangement for self-connecting telephone systems. where a call sets all currently free call seekers jointly assigned to the subscriber group of the caller in motion and stops again as soon as one of these call seekers has reached the calling line, characterized in that the test relays P of all call seekers (AS) in a subscriber group are connected in a chain connection.

Claims (1)

2. Schaltungsanordnung nach Anspruch 1. dadurch gekennzeichnet, dass Kontakte der EMI2.3 2. Circuit arrangement according to claim 1, characterized in that the contacts EMI2.3
AT76920D 1915-10-11 1916-10-11 Circuit arrangement for self-connecting telephone systems. AT76920B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE76920X 1915-10-11

Publications (1)

Publication Number Publication Date
AT76920B true AT76920B (en) 1919-06-25

Family

ID=5637635

Family Applications (1)

Application Number Title Priority Date Filing Date
AT76920D AT76920B (en) 1915-10-11 1916-10-11 Circuit arrangement for self-connecting telephone systems.

Country Status (1)

Country Link
AT (1) AT76920B (en)

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