NL163885C - DEVICE FOR MONITORING A NUMBER OF NOTIFICATION UNITS. - Google Patents

DEVICE FOR MONITORING A NUMBER OF NOTIFICATION UNITS.

Info

Publication number
NL163885C
NL163885C NL6818361.A NL6818361A NL163885C NL 163885 C NL163885 C NL 163885C NL 6818361 A NL6818361 A NL 6818361A NL 163885 C NL163885 C NL 163885C
Authority
NL
Netherlands
Prior art keywords
monitoring
notification units
notification
units
Prior art date
Application number
NL6818361.A
Other languages
Dutch (nl)
Other versions
NL6818361A (en
NL163885B (en
Original Assignee
Cerberus 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
Application filed by Cerberus Ag filed Critical Cerberus Ag
Publication of NL6818361A publication Critical patent/NL6818361A/xx
Publication of NL163885B publication Critical patent/NL163885B/en
Application granted granted Critical
Publication of NL163885C publication Critical patent/NL163885C/en

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
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/123—Checking intermittently signalling or alarm systems of line circuits
    • 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
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • 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
    • G08B29/12—Checking intermittently signalling or alarm systems
    • G08B29/14—Checking intermittently signalling or alarm systems checking the detection circuits
    • G08B29/145—Checking intermittently signalling or alarm systems checking the detection circuits of fire detection circuits
NL6818361.A 1967-12-29 1968-12-20 DEVICE FOR MONITORING A NUMBER OF NOTIFICATION UNITS. NL163885C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1834067A CH463329A (en) 1967-12-29 1967-12-29 Signal system with several signaling units connected in parallel

Publications (3)

Publication Number Publication Date
NL6818361A NL6818361A (en) 1969-07-01
NL163885B NL163885B (en) 1980-05-16
NL163885C true NL163885C (en) 1980-10-15

Family

ID=4432272

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6818361.A NL163885C (en) 1967-12-29 1968-12-20 DEVICE FOR MONITORING A NUMBER OF NOTIFICATION UNITS.

Country Status (10)

Country Link
US (1) US3588892A (en)
AT (1) AT285388B (en)
BE (1) BE726158A (en)
CH (1) CH463329A (en)
DE (1) DE1815206C3 (en)
DK (1) DK123736B (en)
FR (1) FR1599970A (en)
GB (1) GB1202760A (en)
NL (1) NL163885C (en)
SE (1) SE385516B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753258A (en) * 1970-03-31 1973-08-14 Nittan Co Ltd Fire alarming system
US3983548A (en) * 1975-02-19 1976-09-28 Tufts Howard L Fire detection system
JPS5346092A (en) * 1976-10-08 1978-04-25 Toshiba Corp Gas leakage alarm device
DE2817121C2 (en) * 1978-04-19 1985-10-10 Siemens AG, 1000 Berlin und 8000 München Alarm system
US4263587A (en) * 1979-04-09 1981-04-21 International Telephone And Telegraph Corporation Liquid level control system
JPS595955B2 (en) * 1979-07-27 1984-02-08 ホーチキ株式会社 fire alarm
US4456907A (en) * 1981-01-12 1984-06-26 Pyrotector, Inc. Ionization type smoke detector with test circuit
US4481502A (en) * 1982-03-26 1984-11-06 Dawson N Rick Central smoke alarm and annunciator
IT1169166B (en) * 1983-02-15 1987-05-27 Gd Spa FUNCTIONAL CONTROL SYSTEM OF INPUT CIRCUITS TO A CENTRAL CONTROL AND CONTROL UNIT FOR MACHINES AND / OR DEVICES USABLE IN PRODUCTION AND / OR PACKAGING LINES OF PRODUCTS
IT1169167B (en) * 1983-02-15 1987-05-27 Gd Spa FUNCTIONAL CONTROL SYSTEM FOR OUTPUT TRANSDUCERS OF A CENTRAL CONTROL AND CONTROL UNIT FOR MACHINES AND / OR DEVICES USABLE IN PRODUCTION AND / OR PACKAGING LINES OF PRODUCTS
DE9408898U1 (en) * 1994-05-31 1995-09-28 Zettler Gmbh Hazard detector
IES73218B2 (en) * 1996-01-10 1997-05-07 William Alexander Heffron A detecting unit and a detecting circuit comprising a plurality of the detecting units
DE102016200914A1 (en) 2016-01-22 2017-07-27 Hekatron Vertriebs Gmbh Device for line monitoring at a locking device of fire doors with smoke switches
DE102016200913A1 (en) 2016-01-22 2017-07-27 Hekatron Vertriebs Gmbh Device for line monitoring of hazard detectors and locking devices
CN107450521A (en) * 2017-08-23 2017-12-08 郑州朗鑫智能电子科技有限公司 A kind of electric detection means of smart home

Also Published As

Publication number Publication date
NL6818361A (en) 1969-07-01
SE385516B (en) 1976-07-05
NL163885B (en) 1980-05-16
CH463329A (en) 1968-09-30
DK123736B (en) 1972-07-24
FR1599970A (en) 1970-07-20
US3588892A (en) 1971-06-28
DE1815206B2 (en) 1974-12-05
AT285388B (en) 1970-10-27
DE1815206C3 (en) 1975-08-07
BE726158A (en) 1969-05-29
DE1815206A1 (en) 1969-07-10
GB1202760A (en) 1970-08-19

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee