GB1026278A - Improvements in or relating to telecommunication systems - Google Patents

Improvements in or relating to telecommunication systems

Info

Publication number
GB1026278A
GB1026278A GB1992763A GB1992763A GB1026278A GB 1026278 A GB1026278 A GB 1026278A GB 1992763 A GB1992763 A GB 1992763A GB 1992763 A GB1992763 A GB 1992763A GB 1026278 A GB1026278 A GB 1026278A
Authority
GB
United Kingdom
Prior art keywords
tnn
lines
signals
exchange
sen
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
GB1992763A
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 GB1026278A publication Critical patent/GB1026278A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
    • H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/50—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
    • H04L12/52—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques
    • H04L12/525—Circuit switching systems, i.e. systems in which the path is physically permanent during the communication using time division techniques involving a stored program control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

1,026,278. Telegraphy. SIEMENS & HALSK A.G. May 20, 1963 [May 21, 1962], No. 19927/63. Heading H4P. A telegraph exchange comprises a number of channels which, when a particular combination of channels is energized, establishes communication from one subscriber to another. Broadcast connections can be set up. The system illustrated employs lines 1-5 and units SE1-SEn, EF1-EFn in an exchange which caters for subscribers Tn1-Tnn. With binary marking of the lines n = 32. When a calling subscriber Tnl wishes to communicate with Tnn he causes SE1 to be set so that each signal element from Tn1 is present simultaneously on lines 1, 2, 4, 5, in the exchange. Unit EFn is the only unit which responds to energization of these four lines, and thus signals from Tn1 pass to Tnn. Subscriber Tnn, upon receiving the calling subscriber's identity, sets up SEn at the exchange so that signals from Tnn pass through wires 3, 4, 5 only. This combination corresponds only to unit EF1 and so Tnn can communicate with Tn1. The signals from the subscribers are differentiated at PUs to provide pulse trains in which each pulse corresponds to a transition in the signals. The pulse trains from the exchange are converted to telegraph signals at PUe. Instead of being set by the calling subscriber, SE1-SEn may be set via r1-r5 under the control of a central register. Lines 1-5 can be replaced by a single line having five frequency channels.
GB1992763A 1962-05-21 1963-05-20 Improvements in or relating to telecommunication systems Expired GB1026278A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1962S0079531 DE1255704B (en) 1962-05-21 1962-05-21 Circuit arrangement for telecommunications switching systems

Publications (1)

Publication Number Publication Date
GB1026278A true GB1026278A (en) 1966-04-14

Family

ID=7508263

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1992763A Expired GB1026278A (en) 1962-05-21 1963-05-20 Improvements in or relating to telecommunication systems

Country Status (4)

Country Link
DE (1) DE1255704B (en)
GB (1) GB1026278A (en)
NL (2) NL148467B (en)
SE (1) SE313331B (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1069693B (en) * 1959-11-26
DE1070238B (en) * 1959-12-03
DE1068764B (en) * 1959-11-12
DE1001709B (en) * 1953-02-24 1957-01-31 Int Standard Electric Corp Audio frequency signal receiver for two frequencies
DE1113013B (en) * 1959-08-29 1961-08-24 Standard Elektrik Lorenz Ag Method for signaling with audio frequency voltages over the subscriber lines in telephone systems
DE1039576B (en) * 1956-09-28 1958-09-25 Siemens Ag Circuit arrangement for the optional delivery of signals of different lengths, in particular for the selection of subscriber intercom stations in a company line in telephone systems
DE1043417B (en) * 1957-05-31 1958-11-13 Siemens Ag Circuit arrangement for evaluating different signal potentials in the form of a code for telecommunications systems, preferably for systems for communication technology
US3072747A (en) * 1958-05-27 1963-01-08 Ass Elect Ind Woolwich Ltd Pulse signalling systems
NL130386C (en) * 1958-06-20
DE1125008B (en) * 1960-02-16 1962-03-08 Ericsson Telefon Ab L M Circuit arrangement for sending and receiving code characters for telecommunication systems, in particular telephone systems
NL273286A (en) * 1961-01-07

Also Published As

Publication number Publication date
NL148467B (en) 1976-01-15
NL292228A (en)
SE313331B (en) 1969-08-11
DE1255704B (en) 1967-12-07

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