FR2266408A1 - Computer controlled switching network - makes four-wire connections and has an input, an intermediate and output switching stages - Google Patents

Computer controlled switching network - makes four-wire connections and has an input, an intermediate and output switching stages

Info

Publication number
FR2266408A1
FR2266408A1 FR7410757A FR7410757A FR2266408A1 FR 2266408 A1 FR2266408 A1 FR 2266408A1 FR 7410757 A FR7410757 A FR 7410757A FR 7410757 A FR7410757 A FR 7410757A FR 2266408 A1 FR2266408 A1 FR 2266408A1
Authority
FR
France
Prior art keywords
input
wire
switching
lines
switching network
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.)
Granted
Application number
FR7410757A
Other languages
French (fr)
Other versions
FR2266408B1 (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.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
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 Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Priority to FR7410757A priority Critical patent/FR2266408A1/en
Priority to DE19752513529 priority patent/DE2513529A1/en
Priority to BE2054233A priority patent/BE827297R/en
Publication of FR2266408A1 publication Critical patent/FR2266408A1/en
Application granted granted Critical
Publication of FR2266408B1 publication Critical patent/FR2266408B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0008—Selecting arrangements using relay selectors in the switching stages
    • H04Q3/0012—Selecting arrangements using relay selectors in the switching stages in which the relays are arranged in a matrix configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Telephonic Communication Services (AREA)

Abstract

The switching network carries out no concentration or expansion functions. Two-wire lines from the network terminal circuits are connected to the inputs of the input stage, and incoming two-wire lines of four-wire junction lines are connected to the outputs of the output stage. The corresponding outgoing and incoming two-wire lines of a four-wire junction line are connected to an input and output switching groups with the same position number in the corresponding switching stages. Intermediate switching groups are arranged in pairs, with each pair in the same bay, or at least in two adjacent bays in the exchange. The two paths built by the switching network for each call for connection of two four-wire lines, pass through different switching groups in a pair, or through the same group, so that the length and transmission loss differences in both paths are as small as possible.
FR7410757A 1974-03-28 1974-03-28 Computer controlled switching network - makes four-wire connections and has an input, an intermediate and output switching stages Granted FR2266408A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7410757A FR2266408A1 (en) 1974-03-28 1974-03-28 Computer controlled switching network - makes four-wire connections and has an input, an intermediate and output switching stages
DE19752513529 DE2513529A1 (en) 1974-03-28 1975-03-26 COUPLING ARRANGEMENT AND PROCEDURE FOR SEARCHING FOR DIRECTIONS IN THIS COUPLING NETWORK, FOR REMOTE COMMUNICATION, IN PARTICULAR TELEPHONE SWITCHING SYSTEMS
BE2054233A BE827297R (en) 1974-03-28 1975-03-28 SWITCHING NETWORKS IMPROVEMENTS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7410757A FR2266408A1 (en) 1974-03-28 1974-03-28 Computer controlled switching network - makes four-wire connections and has an input, an intermediate and output switching stages

Publications (2)

Publication Number Publication Date
FR2266408A1 true FR2266408A1 (en) 1975-10-24
FR2266408B1 FR2266408B1 (en) 1977-10-07

Family

ID=9136957

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7410757A Granted FR2266408A1 (en) 1974-03-28 1974-03-28 Computer controlled switching network - makes four-wire connections and has an input, an intermediate and output switching stages

Country Status (3)

Country Link
BE (1) BE827297R (en)
DE (1) DE2513529A1 (en)
FR (1) FR2266408A1 (en)

Also Published As

Publication number Publication date
BE827297R (en) 1975-09-29
DE2513529A1 (en) 1975-10-02
FR2266408B1 (en) 1977-10-07

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Legal Events

Date Code Title Description
ST Notification of lapse