[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

FR2250250A1 - Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech - Google Patents

Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech

Info

Publication number
FR2250250A1
FR2250250A1 FR7339621A FR7339621A FR2250250A1 FR 2250250 A1 FR2250250 A1 FR 2250250A1 FR 7339621 A FR7339621 A FR 7339621A FR 7339621 A FR7339621 A FR 7339621A FR 2250250 A1 FR2250250 A1 FR 2250250A1
Authority
FR
France
Prior art keywords
concentrator
switchboard
multiplex lines
time
wire 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.)
Granted
Application number
FR7339621A
Other languages
French (fr)
Other versions
FR2250250B1 (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.)
LANNIONNAIS ELECTRONIQUE
Original Assignee
LANNIONNAIS ELECTRONIQUE
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 LANNIONNAIS ELECTRONIQUE filed Critical LANNIONNAIS ELECTRONIQUE
Priority to FR7339621A priority Critical patent/FR2250250A1/en
Publication of FR2250250A1 publication Critical patent/FR2250250A1/en
Application granted granted Critical
Publication of FR2250250B1 publication Critical patent/FR2250250B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)

Abstract

The switchboard to station telephone connecting equipment consists of a concentrator (2) and lines interconnecting the switchboard (3), the station (1) and the public telephone network. The station (1) is connected to the public telephone network by multiplex lines (9) using time-division and pulse code modulation, and is also connected to the concentrator by two multiplex lines (4). The concentrator (2) is connected to the switchboard (3) by two multiplex lines (5, 6) and by a two-wire line (7) to a subscriber equipment (8). There can be four switchboards for each concentrator which has, for example, two multiplex lines with 32 channels each to the station, and the concentrator (2) has 64 subscriber connections with four used by the switchboard.
FR7339621A 1973-11-07 1973-11-07 Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech Granted FR2250250A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7339621A FR2250250A1 (en) 1973-11-07 1973-11-07 Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7339621A FR2250250A1 (en) 1973-11-07 1973-11-07 Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech

Publications (2)

Publication Number Publication Date
FR2250250A1 true FR2250250A1 (en) 1975-05-30
FR2250250B1 FR2250250B1 (en) 1977-03-11

Family

ID=9127429

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7339621A Granted FR2250250A1 (en) 1973-11-07 1973-11-07 Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech

Country Status (1)

Country Link
FR (1) FR2250250A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344189A1 (en) * 1976-03-11 1977-10-07 Post Office DATA TRANSMISSION SYSTEM
EP0018910A1 (en) * 1979-05-08 1980-11-12 COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL S.A. dite: System for connecting operator positions to an exchange having a digital switching network

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344189A1 (en) * 1976-03-11 1977-10-07 Post Office DATA TRANSMISSION SYSTEM
EP0018910A1 (en) * 1979-05-08 1980-11-12 COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL S.A. dite: System for connecting operator positions to an exchange having a digital switching network

Also Published As

Publication number Publication date
FR2250250B1 (en) 1977-03-11

Similar Documents

Publication Publication Date Title
GB1210037A (en) Improvements in or relating to multichannel delta modulation message transmission systems
AU584004B2 (en) Time division multiplex (TDM) switching system especially for pulse code modulated (PCM) telephony signals
GB1464002A (en) Time division switching systems
ES445444A1 (en) Time division exchange and a method for the reconfiguration of this exchange
JPS55141845A (en) Time division multiplex communication network* specially pcm time division multiplex communication terminal facility digital signal* specially pcm signal transmission control circuit
JPS57164651A (en) Control system for switchboard
GB1046880A (en) Improvements in or relating to electric circuit arrangements for use in telecommunications systems
SE7510542L (en) WAY TO CONNECT AT LEAST THREE SUBSCRIBERS IN A TIME MULTIPLEX COMMUNICATION SYSTEM, SEPARATE PCM TELEPHONE EXCHANGE
GB1486547A (en) Pcm tdm telecommunications systems
YU41072A (en) Diagram for connecting four-conductor lines of a pcm time multiplex in telecommunication,especially telephone exchanges
GB1058893A (en) Improvements in or relating to switching networks for use in telecommunications installations
GB1521127A (en) Telecommunication systems
FR2250250A1 (en) Switchboard-to-station telephone connecting equipment - has concentrator, time-division multiplex lines and two wire line for speech
GB1474726A (en) Tdm telecommunications system
GB1514329A (en) Tdm telecommunications systems
GB980029A (en) Line concentrator and its associated circuits in a time multiplex transmission system
ES8801070A1 (en) Telecommunication exchange for speech and data.
ATA640274A (en) CIRCUIT ARRANGEMENT FOR CONNECTING THE SUBSCRIBER LINE OF A TELEPHONE SUBSCRIBER STATION TO A TELEPHONE SWITCHING SYSTEM
GB990545A (en) Telephone concentrator systems
JPS553299A (en) Communication transmission system
CH523641A (en) Circuit arrangement for switching through communication signals, in particular PCM signals, in time-division multiplex exchanges of a time-division multiplex telecommunications network
FR2295592A1 (en) Conference connection establishment method - is in automatic telex exchanges using existing broadcast equipment (BE210676)
JPS5558658A (en) Subscriber's line telephone transmission system
ES464989A1 (en) Concentration network for a time division multiplex telephone exchange with pulse amplitude modulation
GB1252325A (en)

Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse