ES368623A1 - Aparato de abonado para un sistema telefonico de pcm. - Google Patents

Aparato de abonado para un sistema telefonico de pcm.

Info

Publication number
ES368623A1
ES368623A1 ES368623A ES368623A ES368623A1 ES 368623 A1 ES368623 A1 ES 368623A1 ES 368623 A ES368623 A ES 368623A ES 368623 A ES368623 A ES 368623A ES 368623 A1 ES368623 A1 ES 368623A1
Authority
ES
Spain
Prior art keywords
substation
power supply
loop
relay
pcm
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
ES368623A
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
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 Alcatel Espana SA filed Critical Alcatel Espana SA
Publication of ES368623A1 publication Critical patent/ES368623A1/es
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Small-Scale Networks (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Telephonic Communication Services (AREA)
ES368623A 1968-06-21 1969-06-20 Aparato de abonado para un sistema telefonico de pcm. Expired ES368623A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB29773/68A GB1187490A (en) 1968-06-21 1968-06-21 Subscriber Subset for PCM Telephone System
GB29765/68A GB1184519A (en) 1968-06-21 1968-06-21 Subscriber Subset for PCM.

Publications (1)

Publication Number Publication Date
ES368623A1 true ES368623A1 (es) 1971-05-01

Family

ID=26260071

Family Applications (1)

Application Number Title Priority Date Filing Date
ES368623A Expired ES368623A1 (es) 1968-06-21 1969-06-20 Aparato de abonado para un sistema telefonico de pcm.

Country Status (6)

Country Link
US (1) US3626100A (es)
CH (1) CH509023A (es)
ES (1) ES368623A1 (es)
FR (1) FR2011410A1 (es)
GB (2) GB1184519A (es)
NL (1) NL6909527A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1024279A (en) * 1972-10-10 1978-01-10 Chestel Electronic time-division-multiplexed pabx telephone system
FR2286563A1 (fr) * 1974-09-27 1976-04-23 Thomson Csf Systeme de telecommunication
AU535333B2 (en) * 1979-07-25 1984-03-15 L M Ericsson Pty. Ltd. Loop sharing in digital systems
SE442070B (sv) * 1981-07-10 1985-11-25 Ericsson Telefon Ab L M Sett for att i ett telekommunikationssystem, vid overforing av information mellan terminaler vilka er anslutna till varandra genom en gemensam ringbuss, astadkomma en anpassning i overgangen mellan ringbussen och respek

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3483329A (en) * 1966-02-11 1969-12-09 Ultronic Systems Corp Multiplex loop system
US3458661A (en) * 1966-06-21 1969-07-29 Bell Telephone Labor Inc Arrangement for providing partial service on a failed serially looped carrier system
US3519750A (en) * 1967-08-15 1970-07-07 Ultronic Systems Corp Synchronous digital multiplex communication system including switchover

Also Published As

Publication number Publication date
GB1187490A (en) 1970-04-08
CH509023A (de) 1971-06-15
GB1184519A (en) 1970-03-18
NL6909527A (es) 1969-12-23
FR2011410A1 (es) 1970-02-27
US3626100A (en) 1971-12-07
DE1930484B2 (de) 1977-03-17
DE1930484A1 (de) 1970-01-02

Similar Documents

Publication Publication Date Title
ES368623A1 (es) Aparato de abonado para un sistema telefonico de pcm.
ES382770A1 (es) Perfeccionamientos en sistemas de comunicacion multiplex con division de tiempos dotados de una serie de registros.
GB1329556A (en) Telephone systems
EP0100076A3 (en) Circuit arrangement for clock generation in communication installations, especially tdm digital exchanges
GB1130401A (en) Digital communications systems
GB1151854A (en) Direct Current Transmission Systems.
GB534866A (en) Improvements relating to telephone and like signalling systems
JPS522106A (en) Loop around connection control system
GB572002A (en) Improvements in telephone or like signalling systems
GB990545A (en) Telephone concentrator systems
GB1389017A (en) Apparatus for conversion of telephones connection in parallel to a common line to provide a private switching system
US1632025A (en) Automatic telephone system
GB1130431A (en) Communication switching systems
GB1475353A (en) Telephone system
GB1256374A (en) Improvements in or relating to automatic telecommunications exchange systems
GB1207467A (en) Improvements to digital signal transmission systems in telecommunication exchanges
GB1226556A (es)
GB822319A (en) Improvements in or relating to telephone systems
FR2307392A1 (fr) Installation d'eclairage de securite pour etablissements recevant du public
JPS561693A (en) Office incoming tone sending system for key telephone equipment
GB557101A (en) Improvements in or relating to electric remote indication systems
SE331703B (es)
JPS551734A (en) Connection system for telephone exchanger terminal
GB583277A (en) Improvements in electrical signalling systems
ES408650A1 (es) Mejoras en los circuitos de supervision para llamadas de transito en una central telefonica semielectronica.