DE3571164D1 - A multiplexed alarm system - Google Patents

A multiplexed alarm system

Info

Publication number
DE3571164D1
DE3571164D1 DE8585901688T DE3571164T DE3571164D1 DE 3571164 D1 DE3571164 D1 DE 3571164D1 DE 8585901688 T DE8585901688 T DE 8585901688T DE 3571164 T DE3571164 T DE 3571164T DE 3571164 D1 DE3571164 D1 DE 3571164D1
Authority
DE
Germany
Prior art keywords
alarm system
multiplexed alarm
multiplexed
alarm
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
DE8585901688T
Other languages
German (de)
Inventor
Kenneth Hackett
Alan Permut
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.)
Carrier Fire and Security Americas Corp
Original Assignee
Interactive Technologies Inc
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 Interactive Technologies Inc filed Critical Interactive Technologies Inc
Application granted granted Critical
Publication of DE3571164D1 publication Critical patent/DE3571164D1/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G08B26/004—Alarm systems in which substations are interrogated in succession by a central station with common interrogation of substations
DE8585901688T 1984-03-01 1985-02-28 A multiplexed alarm system Expired DE3571164D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US58510384A 1984-03-01 1984-03-01
PCT/US1985/000339 WO1985004040A1 (en) 1984-03-01 1985-02-28 A multiplexed alarm system

Publications (1)

Publication Number Publication Date
DE3571164D1 true DE3571164D1 (en) 1989-07-27

Family

ID=24340058

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585901688T Expired DE3571164D1 (en) 1984-03-01 1985-02-28 A multiplexed alarm system

Country Status (5)

Country Link
EP (1) EP0173735B1 (en)
JP (1) JPS61501599A (en)
AU (1) AU574157B2 (en)
DE (1) DE3571164D1 (en)
WO (1) WO1985004040A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3927404A (en) * 1973-10-18 1975-12-16 Standard Electric Time Corp Time division multiple access communication system for status monitoring
SE391250B (en) * 1974-11-26 1977-02-07 Saab Scania Ab SECURITY SYSTEM, INCLUDING A CENTRAL UNIT, SOMŸVIA A COMMUNICATION CHANNEL IS CONNECTED WITH SEVERAL LOCAL TERMINAL UNITS
US3930246A (en) * 1975-01-13 1975-12-30 Scott Francis A Electrical alarm system
US4053714A (en) * 1976-04-06 1977-10-11 Canadian Pgl Electronics Inc. Electrical data collecting device
US4162488A (en) * 1977-03-11 1979-07-24 Emergency Products Corporation Alarm system
US4206449A (en) * 1977-07-27 1980-06-03 American District Telegraph Company Multiple sensor intrusion alarm system
US4203096A (en) * 1978-04-06 1980-05-13 Mallinckrodt, Inc. Sensor monitoring alarm system
US4228424A (en) * 1978-10-16 1980-10-14 Baker Protective Services, Incorporated Central station alarm
US4367458A (en) * 1980-08-29 1983-01-04 Ultrak Inc. Supervised wireless security system
US4392125A (en) * 1981-03-16 1983-07-05 Nel-Tech Development, Inc. Multiplex communication system using remote microprocessors
FR2526190B1 (en) * 1982-04-30 1985-11-08 Europ Teletransmission METHOD FOR PROTECTING A REMOTE MONITORING SYSTEM AGAINST SABOTAGE AND SYSTEM IMPLEMENTING SAID METHOD

Also Published As

Publication number Publication date
EP0173735A1 (en) 1986-03-12
JPS61501599A (en) 1986-07-31
AU574157B2 (en) 1988-06-30
EP0173735B1 (en) 1989-06-21
AU4116085A (en) 1985-09-24
WO1985004040A1 (en) 1985-09-12
EP0173735A4 (en) 1986-08-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee