FR2404980A1 - MOUNTING FOR TELECOMMUNICATIONS INSTALLATIONS, ESPECIALLY TELEPHONY INSTALLATIONS, INCLUDING SWITCHING DEVICES AND INTERROGATION DEVICES, WHICH ARE COMMON - Google Patents

MOUNTING FOR TELECOMMUNICATIONS INSTALLATIONS, ESPECIALLY TELEPHONY INSTALLATIONS, INCLUDING SWITCHING DEVICES AND INTERROGATION DEVICES, WHICH ARE COMMON

Info

Publication number
FR2404980A1
FR2404980A1 FR7827914A FR7827914A FR2404980A1 FR 2404980 A1 FR2404980 A1 FR 2404980A1 FR 7827914 A FR7827914 A FR 7827914A FR 7827914 A FR7827914 A FR 7827914A FR 2404980 A1 FR2404980 A1 FR 2404980A1
Authority
FR
France
Prior art keywords
installations
interrogation
common
switching devices
devices
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Withdrawn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
FR7827914A
Other languages
French (fr)
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 AG
Original Assignee
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
Priority claimed from DE19772744118 external-priority patent/DE2744118A1/en
Priority claimed from DE19772748795 external-priority patent/DE2748795A1/en
Application filed by Siemens AG filed Critical Siemens AG
Publication of FR2404980A1 publication Critical patent/FR2404980A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/72—Finding out and indicating number of calling subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Telephonic Communication Services (AREA)

Abstract

Montage pour des installations de télécommunications, notamment des installations de téléphonie. Dans ce montage un dispositif d'interrogation D, commun à tous les dispositifs de commutation X1, X2, X3 et interrogeant avec au moins deux fréquences différentes d'impulsions d'interrogation, interroge l'un de ces dispositifs de commutation avec une fréquence faible d'impulsions tant que les résultats d'interrogation obtenus possèdent une première valeur et, dans le cas de l'apparition d'un nombre inférieur à un nombre critique, de résultats d'interrogation présentant une seconde valeur, les processus d'interrogation se poursuivent avec une fréquence plus élevée d'impulsions d'interrogation. Application notamment en téléphonie automatique.Assembly for telecommunications installations, in particular telephony installations. In this arrangement, an interrogation device D, common to all the switching devices X1, X2, X3 and interrogating with at least two different frequencies of interrogation pulses, interrogates one of these switching devices with a low frequency of pulses as long as the interrogation results obtained have a first value and, in the case of the occurrence of a number less than a critical number, of interrogation results having a second value, the interrogation processes are continue with a higher polling pulse rate. Application in particular in automatic telephony.

FR7827914A 1977-09-30 1978-09-29 MOUNTING FOR TELECOMMUNICATIONS INSTALLATIONS, ESPECIALLY TELEPHONY INSTALLATIONS, INCLUDING SWITCHING DEVICES AND INTERROGATION DEVICES, WHICH ARE COMMON Withdrawn FR2404980A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772744118 DE2744118A1 (en) 1977-09-30 1977-09-30 Telephone exchange with single interrogate unit for several lines - uses interrogate pulse trains of at least two different frequencies to increase unit's capacity
DE19772748795 DE2748795A1 (en) 1977-10-31 1977-10-31 Switching characteristics monitor for telecommunications exchange - repeatedly interrogates switching devices and successively compares results

Publications (1)

Publication Number Publication Date
FR2404980A1 true FR2404980A1 (en) 1979-04-27

Family

ID=25772826

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7827914A Withdrawn FR2404980A1 (en) 1977-09-30 1978-09-29 MOUNTING FOR TELECOMMUNICATIONS INSTALLATIONS, ESPECIALLY TELEPHONY INSTALLATIONS, INCLUDING SWITCHING DEVICES AND INTERROGATION DEVICES, WHICH ARE COMMON

Country Status (6)

Country Link
AT (1) ATA698478A (en)
CH (1) CH631304A5 (en)
FR (1) FR2404980A1 (en)
GB (1) GB2006573B (en)
IT (1) IT1099616B (en)
LU (1) LU80182A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU193325B (en) * 1985-03-29 1987-09-28 Bhg Hiradastech Vallalat Scanning and preprocessing circuit for centrally controlled apparatuses, preferably telephone exchanges
DE3668745D1 (en) * 1985-08-14 1990-03-08 Siemens Ag CIRCUIT ARRANGEMENT FOR TELECOMMUNICATION SYSTEMS, ESPECIALLY TELECOMMUNICATION SWITCHING SYSTEMS, WITH REQUESTING POINTS, CYCLICALLY CONTROLLING INFORMATION REQUESTING DEVICES.
GB2339119B (en) * 1998-06-30 2003-05-21 Mitel Corp Method and apparatus for event detection in a switching system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135309B2 (en) * 1971-07-15 1972-07-13 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt PERIODIC SCANNING PROCEDURE FOR CENTRALLY CONTROLLED REMOTE SYSTEMS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2135309B2 (en) * 1971-07-15 1972-07-13 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt PERIODIC SCANNING PROCEDURE FOR CENTRALLY CONTROLLED REMOTE SYSTEMS

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
EXBK/66 *
EXBK/75 *

Also Published As

Publication number Publication date
IT1099616B (en) 1985-09-18
GB2006573A (en) 1979-05-02
CH631304A5 (en) 1982-07-30
ATA698478A (en) 1982-09-15
LU80182A1 (en) 1979-02-12
GB2006573B (en) 1982-01-13
IT7828249A0 (en) 1978-09-29

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Legal Events

Date Code Title Description
ST Notification of lapse