BE48T1 - DEVICE FOR MONITORING THE DURATION OF OCCUPANCY STATES IN TELEPHONE PLANTS - Google Patents

DEVICE FOR MONITORING THE DURATION OF OCCUPANCY STATES IN TELEPHONE PLANTS

Info

Publication number
BE48T1
BE48T1 BEBTR48A BE78101473A BE48T1 BE 48 T1 BE48 T1 BE 48T1 BE BTR48 A BEBTR48 A BE BTR48A BE 78101473 A BE78101473 A BE 78101473A BE 48 T1 BE48 T1 BE 48T1
Authority
BE
Belgium
Prior art keywords
duration
monitoring
occupancy states
telephone plants
plants
Prior art date
Application number
BEBTR48A
Other languages
French (fr)
Inventor
K Delcher
W Seidel
Original Assignee
Telefonbau & Normalzeit Gmbh
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 Telefonbau & Normalzeit Gmbh filed Critical Telefonbau & Normalzeit Gmbh
Application granted granted Critical
Publication of BE48T1 publication Critical patent/BE48T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/54—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/14—Signalling existence of persistent "off-hook" condition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Exchange Systems With Centralized Control (AREA)
  • Monitoring And Testing Of Exchanges (AREA)
  • Debugging And Monitoring (AREA)
BEBTR48A 1977-12-07 1978-11-29 DEVICE FOR MONITORING THE DURATION OF OCCUPANCY STATES IN TELEPHONE PLANTS BE48T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772754404 DE2754404C3 (en) 1977-12-07 1977-12-07 Circuit arrangement for the temporal monitoring of occupancy status in telecommunication systems, in particular telephone switching systems

Publications (1)

Publication Number Publication Date
BE48T1 true BE48T1 (en) 1980-03-21

Family

ID=6025467

Family Applications (1)

Application Number Title Priority Date Filing Date
BEBTR48A BE48T1 (en) 1977-12-07 1978-11-29 DEVICE FOR MONITORING THE DURATION OF OCCUPANCY STATES IN TELEPHONE PLANTS

Country Status (7)

Country Link
EP (1) EP0002249A1 (en)
AT (1) ATA870478A (en)
AU (1) AU522402B2 (en)
BE (1) BE48T1 (en)
DE (1) DE2754404C3 (en)
ES (1) ES475642A1 (en)
FR (1) FR2446042A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006498C2 (en) * 1980-02-21 1983-06-09 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Method for activating incorrectly assigned memory cells assigned to the connection sets in telephone systems, in particular telephone branch exchange systems
DE3011850A1 (en) * 1980-03-27 1981-10-01 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Accessory equipment for central telecommunication exchange - has extra, rapid scanning counter for recognising empty e.g. time expired storage positions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE760086A (en) * 1969-12-09 1971-06-09 Siemens Ag METHOD AND INSTALLATION FOR THE CONTROL OF COMMUNICATIONS OF INFORMATION AT THE POINT OF VIEW OF THE END SIGN IN CENTRALLY CONTROLLED TELECOMMUNICATION INSTALLATIONS
DE2201329A1 (en) * 1972-01-12 1973-07-19 Standard Elek K Lorenz Ag CIRCUIT ARRANGEMENT FOR THE SIMULTANEOUS MEASUREMENT OF SEVERAL DIFFERENT LONG PERIODS
US3825693A (en) * 1972-09-25 1974-07-23 Tele Resources Inc Time division multiplex branch exchange
US3821718A (en) * 1972-10-25 1974-06-28 Gte Automatic Electric Lab Inc Trunk timer with exact time feature

Also Published As

Publication number Publication date
AU4163678A (en) 1979-06-14
FR2446042A1 (en) 1980-08-01
ES475642A1 (en) 1979-04-01
DE2754404A1 (en) 1979-06-13
DE2754404B2 (en) 1979-10-04
EP0002249A1 (en) 1979-06-13
ATA870478A (en) 1984-09-15
AU522402B2 (en) 1982-06-03
DE2754404C3 (en) 1980-06-12

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Legal Events

Date Code Title Description
ERE Patent lapsed

Free format text: 901130 *TELEFONBAU UND NORMALZEIT G.M.B.H.