SE7803437L - Forfarande for att vid en anleggning vars enheter er sammanbundna medelst en kommunikationsledning for informationsberande signaler, kontinuerligt overvaka tillstandet for de till kommunikationsledningen anslutna ... - Google Patents

Forfarande for att vid en anleggning vars enheter er sammanbundna medelst en kommunikationsledning for informationsberande signaler, kontinuerligt overvaka tillstandet for de till kommunikationsledningen anslutna ...

Info

Publication number
SE7803437L
SE7803437L SE7803437A SE7803437A SE7803437L SE 7803437 L SE7803437 L SE 7803437L SE 7803437 A SE7803437 A SE 7803437A SE 7803437 A SE7803437 A SE 7803437A SE 7803437 L SE7803437 L SE 7803437L
Authority
SE
Sweden
Prior art keywords
communication line
procedure
units
installation
condition
Prior art date
Application number
SE7803437A
Other languages
English (en)
Inventor
R A R Svensson
Original Assignee
Saab Scania Ab
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 Saab Scania Ab filed Critical Saab Scania Ab
Priority to SE7803437A priority Critical patent/SE7803437L/sv
Priority to PCT/SE1979/000068 priority patent/WO1979000844A1/en
Publication of SE7803437L publication Critical patent/SE7803437L/sv

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B29/00—Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
    • G08B29/02—Monitoring continuously signalling or alarm systems
    • G08B29/06—Monitoring of the line circuits, e.g. signalling of line faults
    • G08B29/08—Signalling of tampering with the line circuit
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/006—Alarm systems in which substations are interrogated in succession by a central station with substations connected to an individual line, e.g. star configuration
SE7803437A 1978-03-28 1978-03-28 Forfarande for att vid en anleggning vars enheter er sammanbundna medelst en kommunikationsledning for informationsberande signaler, kontinuerligt overvaka tillstandet for de till kommunikationsledningen anslutna ... SE7803437L (sv)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE7803437A SE7803437L (sv) 1978-03-28 1978-03-28 Forfarande for att vid en anleggning vars enheter er sammanbundna medelst en kommunikationsledning for informationsberande signaler, kontinuerligt overvaka tillstandet for de till kommunikationsledningen anslutna ...
PCT/SE1979/000068 WO1979000844A1 (en) 1978-03-28 1979-03-28 An arrangement for security systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7803437A SE7803437L (sv) 1978-03-28 1978-03-28 Forfarande for att vid en anleggning vars enheter er sammanbundna medelst en kommunikationsledning for informationsberande signaler, kontinuerligt overvaka tillstandet for de till kommunikationsledningen anslutna ...

Publications (1)

Publication Number Publication Date
SE7803437L true SE7803437L (sv) 1979-09-29

Family

ID=20334417

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7803437A SE7803437L (sv) 1978-03-28 1978-03-28 Forfarande for att vid en anleggning vars enheter er sammanbundna medelst en kommunikationsledning for informationsberande signaler, kontinuerligt overvaka tillstandet for de till kommunikationsledningen anslutna ...

Country Status (2)

Country Link
SE (1) SE7803437L (sv)
WO (1) WO1979000844A1 (sv)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2651938B1 (fr) * 1989-09-12 1991-11-08 Santerne Sa Procede de surveillance de l'etat d'au moins un moyen de detection, moyens en vue de la mise en óoeuvre de ce procede et installation de surveillance pourvue de ces moyens.
DE4141035C1 (sv) * 1991-12-12 1992-12-17 Schaaf, Norbert, 6200 Wiesbaden, De
DE102008003799B4 (de) * 2008-01-10 2021-06-10 Robert Bosch Gmbh Überwachungsvorrichtung für ein Meldesystem, Meldesystem und Verfahren zur Überwachung des Meldesystems

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE329358B (sv) * 1970-01-08 1970-10-05 Ericsson Telefon Ab L M
US4044351A (en) * 1974-06-24 1977-08-23 Walter Kidde & Company, Inc. System monitor with innate line security ability
FR2324172A1 (fr) * 1975-09-15 1977-04-08 Gautier Gerard Dispositif de protection antifrauduleuse pour ligne telephonique exploitee en transmission d'alarme

Also Published As

Publication number Publication date
WO1979000844A1 (en) 1979-11-01

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