[go: up one dir, main page]

FR2488468A1 - Disposition de circuit apte a relever le fonctionnement correct d'un reseau prepose a la connexion des usagers dans un central telephonique a division de temps - Google Patents

Disposition de circuit apte a relever le fonctionnement correct d'un reseau prepose a la connexion des usagers dans un central telephonique a division de temps Download PDF

Info

Publication number
FR2488468A1
FR2488468A1 FR8103258A FR8103258A FR2488468A1 FR 2488468 A1 FR2488468 A1 FR 2488468A1 FR 8103258 A FR8103258 A FR 8103258A FR 8103258 A FR8103258 A FR 8103258A FR 2488468 A1 FR2488468 A1 FR 2488468A1
Authority
FR
France
Prior art keywords
unit
communication channel
user
signal
test
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.)
Withdrawn
Application number
FR8103258A
Other languages
English (en)
French (fr)
Inventor
Massimo Lanzavecchia
Virgilio Mosca
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.)
Italtel SpA
Original Assignee
Italtel SpA
Italtel Societa Italiana Telecomunicazioni SpA
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 Italtel SpA, Italtel Societa Italiana Telecomunicazioni SpA filed Critical Italtel SpA
Publication of FR2488468A1 publication Critical patent/FR2488468A1/fr
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
    • H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
    • H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
    • H04M3/302—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs
    • H04M3/303—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop using modulation techniques for copper pairs and using PCM multiplexers, e.g. pair gain systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
FR8103258A 1980-02-29 1981-02-19 Disposition de circuit apte a relever le fonctionnement correct d'un reseau prepose a la connexion des usagers dans un central telephonique a division de temps Withdrawn FR2488468A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8020254A IT8020254A0 (it) 1980-02-29 1980-02-29 Connessione degli utenti in una disposizione circuitale atta acentrale telefonica a divisione di rilevare il corretto funzionamento tempo. della rete preposta alla

Publications (1)

Publication Number Publication Date
FR2488468A1 true FR2488468A1 (fr) 1982-02-12

Family

ID=11165180

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8103258A Withdrawn FR2488468A1 (fr) 1980-02-29 1981-02-19 Disposition de circuit apte a relever le fonctionnement correct d'un reseau prepose a la connexion des usagers dans un central telephonique a division de temps

Country Status (9)

Country Link
AR (1) AR226342A1 (es)
BR (1) BR8101064A (es)
DE (1) DE3105960A1 (es)
ES (1) ES499786A0 (es)
FR (1) FR2488468A1 (es)
GB (1) GB2070893A (es)
IT (1) IT8020254A0 (es)
PT (1) PT72585B (es)
SE (1) SE8100702L (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3245006C2 (de) * 1982-12-06 1986-08-14 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Schaltungsanordnung zur Prüfung von Koppelfeldwegen in vierdrähtig zeitmultiplex durchschaltenden Fernmelde-, insbesondere Fernsprechvermittlungsanlagen
DE3307347A1 (de) * 1983-03-02 1984-09-06 Siemens AG, 1000 Berlin und 8000 München Schaltunganordnung fuer pcm-fernmeldevermittlungsanlagen mit pruefeinrichtungen zur funktionspruefung durchgeschalteter verbindungen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641275A (en) * 1968-12-14 1972-02-08 Sits Soc It Telecom Siemens Automatic circuit-testing means for time-sharing telecommunication system
US3692961A (en) * 1969-11-26 1972-09-19 Int Standard Electric Corp Telephone call simulator
JPS554187A (en) * 1978-06-26 1980-01-12 Fujitsu Ltd Test system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3641275A (en) * 1968-12-14 1972-02-08 Sits Soc It Telecom Siemens Automatic circuit-testing means for time-sharing telecommunication system
US3692961A (en) * 1969-11-26 1972-09-19 Int Standard Electric Corp Telephone call simulator
JPS554187A (en) * 1978-06-26 1980-01-12 Fujitsu Ltd Test system

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
INTERNATIONAL SWITCHING SYMPOSIUM, 25-29 octobre 1976, Kyoto, pages 221-2-1 - 221-2-5, TOKYO (JP), M. CORRAIN et al.: 'Fully electronic, international exchange for automatic and operator traffic' *
INTERNATIONAL SWITCHING SYMPOSIUM, 6-9 juin 1972, Cambridge Mass., pages 218 - 223, NEW YORK (US), B. LACCHINI et al.: 'TDM-150. A system for switching voice, data and image circuits: the central processor, the connecting and switching network' *
INTERNATIONAL SWITCHING SYMPOSIUM, 7-11 mai 1979, Paris, pages 1102 - 1110, PARIS (FR), S.R. TREVES et al.: 'Line and trunk testing in a digital switching system' *
PATENT ABSTRACTS OF JAPAN, vol. 4, no. 32, 19 mars 1980, page 47 E 2, & JP - A - 55 004187 (FUJITSU) (12 janvier 1980) *

Also Published As

Publication number Publication date
ES8202223A1 (es) 1982-02-01
SE8100702L (sv) 1981-08-30
PT72585A (fr) 1981-03-01
AR226342A1 (es) 1982-06-30
ES499786A0 (es) 1982-02-01
IT8020254A0 (it) 1980-02-29
PT72585B (fr) 1982-03-12
DE3105960A1 (de) 1981-12-10
GB2070893A (en) 1981-09-09
BR8101064A (pt) 1981-09-01

Similar Documents

Publication Publication Date Title
CA2328216C (en) Method and system for estimating the ability of a subscriber loop to support broadband services
US8687771B2 (en) Methods and apparatus to test a subscriber line for a broadband access service
US2921385A (en) Remote question-answer apparatus
CN104837010B (zh) 语音遥控测试方法、装置及系统
FR2662879A1 (fr) Procede de maintenance centralisee, pour un reseau de telephone sans fil.
EP0329546A1 (fr) Méthode et système de transmission semi-séquentielle utilisant simultanément plusieurs fréquences de transmission radio pour relier un ensemble de réception sismique à un laboratoire central de commande et d'enregistrement
FR2520878A1 (fr) Appareil traducteur de mesures
US6894504B2 (en) Technique for estimation of a subscriber line insertion loss
FR2562368A1 (fr) Reseau de connexion spatial pour signaux numeriques a haut debit
FR2488468A1 (fr) Disposition de circuit apte a relever le fonctionnement correct d'un reseau prepose a la connexion des usagers dans un central telephonique a division de temps
US6459773B1 (en) System to pre-qualify copper subscriber loops for high bandwidth access service using subscriber or network generated tones
EP0428601A1 (fr) Systeme de mesure de decharges partielles.
WO1994005119A1 (fr) Dispositif de controle et de maintenance a distance de reseaux cables
FR2635246A1 (fr) Systeme telephonique numerique
US2321944A (en) Information distribution system
FR2651063A1 (fr) Appareil d'enregistrement et de reproduction
JPS6244758B2 (es)
FR2483722A1 (fr) Procede et systeme de transmission d'informations
US20080043930A1 (en) Method and System for Distance Measurements
FR2502432A1 (fr) Systeme de test de joncteurs d'abonnes
FR2484177A1 (fr) Appareil automatique de transmission d'alarmes par le reseau telephonique autocommute
EP0551937B1 (fr) Dispositif de mesure de qualité de transmission dans une ligne à deux fils avec annulation d'écho
US1982735A (en) Telephone coin system
BE479888A (es)
FR2477347A1 (fr) Generateur de tonalites pour centraux telephoniques a division de temps

Legal Events

Date Code Title Description
ST Notification of lapse