AT76586B - Telephone station with isolating transformer. - Google Patents

Telephone station with isolating transformer.

Info

Publication number
AT76586B
AT76586B AT76586DA AT76586B AT 76586 B AT76586 B AT 76586B AT 76586D A AT76586D A AT 76586DA AT 76586 B AT76586 B AT 76586B
Authority
AT
Austria
Prior art keywords
telephone station
isolating transformer
telephone
transformer
relay
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 AT76586B publication Critical patent/AT76586B/en

Links

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Description

  

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 transformator an die Fernleitung anschaltet. Der Isoliertransformator bleibt solange angeschaltet, bis durch Anhängen des Fernhörers der Hakenumschalter wieder umgelegt und damit der Kontakt p   gpöffaet   wird. 



    PATENT-ANSPRÜCHE:  
1. Fernsprechstation mit Isoliertransformator, der zum Schutz gegen Hochspannung zwischen die Fernleitungen und den Fernsprechapparat eingeschaltet ist, gekennzeichnet. durch ein abhängig vom Hakenumschalter wirkendes Relais, dessen gegen die Relaiswicklung und den geerdeten Relaiskörper hoch isolierte Schaltorgane den Isoliertransformator selbsttätig für die Zeit des Gebrauchs der Fernsprecheinrichtung mit den Fernleitungen verbinden.



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 transformer to the long-distance line. The isolation transformer remains switched on until the hook switch is switched on again by attaching the telephone receiver and the contact p is opened.



    PATENT CLAIMS:
1. Telephone station with insulating transformer, which is switched on for protection against high voltage between the trunk lines and the telephone set. by a relay acting as a function of the hook changeover switch, whose switching elements, which are highly insulated from the relay winding and the earthed relay body, automatically connect the insulating transformer to the long-distance lines while the telephone system is in use.

Claims (1)

3 Fernspreohstation nach Anspruch 1, gekennzeichnet durch die Anordnung des Relais EMI2.2 3 Fernspreohstation according to claim 1, characterized by the arrangement of the relay EMI2.2
AT76586D 1916-07-19 1917-06-23 Telephone station with isolating transformer. AT76586B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE76586X 1916-07-19

Publications (1)

Publication Number Publication Date
AT76586B true AT76586B (en) 1919-05-26

Family

ID=5637497

Family Applications (1)

Application Number Title Priority Date Filing Date
AT76586D AT76586B (en) 1916-07-19 1917-06-23 Telephone station with isolating transformer.

Country Status (1)

Country Link
AT (1) AT76586B (en)

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