NL7706270A - Bewakingsinrichting. - Google Patents

Bewakingsinrichting.

Info

Publication number
NL7706270A
NL7706270A NL7706270A NL7706270A NL7706270A NL 7706270 A NL7706270 A NL 7706270A NL 7706270 A NL7706270 A NL 7706270A NL 7706270 A NL7706270 A NL 7706270A NL 7706270 A NL7706270 A NL 7706270A
Authority
NL
Netherlands
Prior art keywords
objects
central control
constant current
state
indicators
Prior art date
Application number
NL7706270A
Other languages
English (en)
Original Assignee
Pan Data 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 Pan Data Ab filed Critical Pan Data Ab
Priority to NL7706270A priority Critical patent/NL7706270A/nl
Publication of NL7706270A publication Critical patent/NL7706270A/nl

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/01—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium
    • G08B25/04—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems characterised by the transmission medium using a single signalling line, e.g. in a closed loop
NL7706270A 1977-06-07 1977-06-07 Bewakingsinrichting. NL7706270A (nl)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL7706270A NL7706270A (nl) 1977-06-07 1977-06-07 Bewakingsinrichting.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7706270A NL7706270A (nl) 1977-06-07 1977-06-07 Bewakingsinrichting.

Publications (1)

Publication Number Publication Date
NL7706270A true NL7706270A (nl) 1978-12-11

Family

ID=19828675

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7706270A NL7706270A (nl) 1977-06-07 1977-06-07 Bewakingsinrichting.

Country Status (1)

Country Link
NL (1) NL7706270A (nl)

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Legal Events

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