GB393111A - Circuit arrangement for telegraph exchange systems with relay repeating circuits - Google Patents

Circuit arrangement for telegraph exchange systems with relay repeating circuits

Info

Publication number
GB393111A
GB393111A GB20998/32A GB2099832A GB393111A GB 393111 A GB393111 A GB 393111A GB 20998/32 A GB20998/32 A GB 20998/32A GB 2099832 A GB2099832 A GB 2099832A GB 393111 A GB393111 A GB 393111A
Authority
GB
United Kingdom
Prior art keywords
relay
contact
exchange
over
line
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB20998/32A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
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 and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB393111A publication Critical patent/GB393111A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/04Switchboards

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
GB20998/32A 1931-07-25 1932-07-25 Circuit arrangement for telegraph exchange systems with relay repeating circuits Expired GB393111A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE393111X 1931-07-25

Publications (1)

Publication Number Publication Date
GB393111A true GB393111A (en) 1933-06-01

Family

ID=6389658

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20998/32A Expired GB393111A (en) 1931-07-25 1932-07-25 Circuit arrangement for telegraph exchange systems with relay repeating circuits

Country Status (4)

Country Link
BE (1) BE389936A (fr)
FR (1) FR740334A (fr)
GB (1) GB393111A (fr)
NL (1) NL35389C (fr)

Also Published As

Publication number Publication date
FR740334A (fr) 1933-01-24
BE389936A (fr)
NL35389C (fr)

Similar Documents

Publication Publication Date Title
GB393111A (en) Circuit arrangement for telegraph exchange systems with relay repeating circuits
US1588764A (en) Telephone system
US2133814A (en) Telephone system
US1965123A (en) Call forwarding system
US3532832A (en) Message waiting lamp
US2376275A (en) Signaling system
US1652645A (en) Substation circuit
US2222672A (en) Communication switching system
US2306701A (en) Combined telephone and telegraph cord and attendants' circuits
GB442555A (en) Improvements in or relating to traffic control systems
US1730981A (en) Telephone system
US2314518A (en) Telephone system
US1449644A (en) Telephone system
US1038037A (en) Telephone system.
US1868703A (en) Telegraph system
US2027142A (en) Telephone exchange system
US2633501A (en) Long distance telephone exchange system
US1631174A (en) Telegraph signaling system
US1735838A (en) Remote control of selector apparatus
US2495773A (en) Alternating current telegraph system
US2033283A (en) Signaling system
US1025347A (en) Combined telephone and alarm system.
US2082077A (en) Selective signaling system
US864454A (en) Testing system for telephone-lines.
US2639320A (en) Telegraph trunk and control circuits