ES399611A1 - Telephone exchange subscribers line scanner - Google Patents

Telephone exchange subscribers line scanner

Info

Publication number
ES399611A1
ES399611A1 ES399611A ES399611A ES399611A1 ES 399611 A1 ES399611 A1 ES 399611A1 ES 399611 A ES399611 A ES 399611A ES 399611 A ES399611 A ES 399611A ES 399611 A1 ES399611 A1 ES 399611A1
Authority
ES
Spain
Prior art keywords
line
parked
subscriber
closed
signal
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
ES399611A
Other languages
Spanish (es)
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 ES399611A1 publication Critical patent/ES399611A1/en
Expired legal-status Critical Current

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
    • H04Q3/545—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker in which the logic circuitry controlling the exchange is centralised using a stored programme
    • H04Q3/54575—Software application
    • H04Q3/54591—Supervision, e.g. fault localisation, traffic measurements, avoiding errors, failure recovery, monitoring, statistical analysis

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Abstract

A telephone exchange subscriber line scanner comprising line units which give, in response to an interrogation signal, read signals comprising in particular at least one closed line indication if the subscriber's line is closed and open and a status signal indicating whether the subscriber line is free or parked, characterized in that it comprises means for receiving from a control unit, either a search order for service requisitions, or a search order for parked lines, means to successively interrogate the subscriber line units, in a scan cycle, as well as means conditioned by the order for service requisitions and which analyzes the read signals given by the subscriber units to produce a stop signal that interrupts the cycle scanning and calling the central unit when the status signal indicates that the line is free, while the signal closed line indicates that it is closed, and when these signals indicate that the line is parked and open, and means conditioned by the search order for the parked lines and that analyzes the read signals to produce a stop signal when the situation signal indicates that the line is parked, so that the scanner can alternatively be used by the central unit to detect both service requests and faulty lines. (Machine-translation by Google Translate, not legally binding)
ES399611A 1971-02-09 1972-02-09 Telephone exchange subscribers line scanner Expired ES399611A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7104237A FR2126509A5 (en) 1971-02-09 1971-02-09

Publications (1)

Publication Number Publication Date
ES399611A1 true ES399611A1 (en) 1975-06-01

Family

ID=9071578

Family Applications (1)

Application Number Title Priority Date Filing Date
ES399611A Expired ES399611A1 (en) 1971-02-09 1972-02-09 Telephone exchange subscribers line scanner

Country Status (10)

Country Link
AU (1) AU465440B2 (en)
BE (1) BE779111A (en)
BR (1) BR7200721D0 (en)
CA (1) CA983150A (en)
CH (1) CH552918A (en)
DE (1) DE2205639C3 (en)
ES (1) ES399611A1 (en)
FR (1) FR2126509A5 (en)
GB (1) GB1363011A (en)
IT (1) IT947251B (en)

Also Published As

Publication number Publication date
DE2205639A1 (en) 1972-08-31
BR7200721D0 (en) 1973-06-28
GB1363011A (en) 1974-08-14
AU465440B2 (en) 1975-09-25
CH552918A (en) 1974-08-15
AU3878872A (en) 1973-08-16
BE779111A (en) 1972-08-09
DE2205639C3 (en) 1979-02-15
FR2126509A5 (en) 1972-10-06
DE2205639B2 (en) 1978-06-15
CA983150A (en) 1976-02-03
IT947251B (en) 1973-05-21

Similar Documents

Publication Publication Date Title
ES399611A1 (en) Telephone exchange subscribers line scanner
BE779692A (en) CIRCUIT ARRANGEMENT FOR PERMANENT ERROR DETECTION IN AN INFORMATION PROCESSING SYSTEM
JPS5395518A (en) Facsimile input system
ES418752A1 (en) Monitoring system
ES176119U (en) False sliding corridor. (Machine-translation by Google Translate, not legally binding)
CA1019427A (en) Line scanning system in an exchange centre
ES345366A1 (en) Calling subscriber identification circuit
JPS57202170A (en) Line selecting system
EP0183486A3 (en) Microprocessor interface device for use in a telecommunications system
KR900003794A (en) Remote automatic meter reading system using general telephone network
JPS52125213A (en) Absence transfer system
JPS57143654A (en) Memory sequence extending circuit
JPS56107687A (en) Calling detection reporting system
GB1147426A (en) Improvements relating to automatic telecommunication switching systems
Cowpland Microcircuit tone receiver for use in telephone systems.
GB814598A (en) Improvements in or relating to telephone systems
JPS5591256A (en) Connection system for party line subscriber
JPS5534783A (en) Interruption processing method in magnetic disk memory system
JPS55118295A (en) Time sharing exchanger
JPS5351904A (en) Subscriber circuit system both for telephone and data
ES295545A1 (en) Signaling system (Machine-translation by Google Translate, not legally binding)
JPS5690652A (en) Circuit connection system
JPS52122020A (en) Calling signal system
GB717739A (en) Improvements in or relating to electrical signalling systems particularly telephone or like systems
JPS52129207A (en) Subscriber information accumulation sending system