IT981362B - TELEGRAPHY SYSTEM IN THE EVENT OF A FIRE - Google Patents

TELEGRAPHY SYSTEM IN THE EVENT OF A FIRE

Info

Publication number
IT981362B
IT981362B IT2155273A IT2155273A IT981362B IT 981362 B IT981362 B IT 981362B IT 2155273 A IT2155273 A IT 2155273A IT 2155273 A IT2155273 A IT 2155273A IT 981362 B IT981362 B IT 981362B
Authority
IT
Italy
Prior art keywords
fire
event
telegraphy system
telegraphy
Prior art date
Application number
IT2155273A
Other languages
Italian (it)
Inventor
C Wagland
L Isheden
A Sandlin
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Application granted granted Critical
Publication of IT981362B publication Critical patent/IT981362B/en

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
    • G08B26/001—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel
    • G08B26/003—Alarm systems in which substations are interrogated in succession by a central station with individual interrogation of substations connected in parallel replying the identity and the state of the sensor
    • 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

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
IT2155273A 1972-03-15 1973-03-13 TELEGRAPHY SYSTEM IN THE EVENT OF A FIRE IT981362B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE327772A SE374970B (en) 1972-03-15 1972-03-15

Publications (1)

Publication Number Publication Date
IT981362B true IT981362B (en) 1974-10-10

Family

ID=20261764

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2155273A IT981362B (en) 1972-03-15 1973-03-13 TELEGRAPHY SYSTEM IN THE EVENT OF A FIRE

Country Status (6)

Country Link
BR (1) BR7301814D0 (en)
FR (1) FR2176004B1 (en)
GB (1) GB1419137A (en)
IT (1) IT981362B (en)
NO (1) NO132448C (en)
SE (1) SE374970B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54118199A (en) * 1978-03-07 1979-09-13 Hochiki Co Information transmitter
CH651688A5 (en) * 1980-06-23 1985-09-30 Cerberus Ag METHOD FOR TRANSMITTING MEASURED VALUES IN A FIRE DETECTING SYSTEM AND DEVICE FOR IMPLEMENTING THE METHOD.
FR2688891A1 (en) * 1981-04-03 1993-09-24 Thomson Csf DEVICE FOR TESTING A RECEIVER GROUP.
GB2173618B (en) * 1985-04-12 1988-09-14 Emi Ltd Alarm monitoring installation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1264135A (en) * 1959-06-19 1961-06-19 Int Standard Electric Corp Electrical signaling system
FR1389164A (en) * 1963-03-04 1965-02-12 Improvements made to remote station monitoring facilities from a central station
US3601806A (en) * 1969-06-23 1971-08-24 North American Rockwell Digital time multiplexed bidirectional communications system

Also Published As

Publication number Publication date
FR2176004A1 (en) 1973-10-26
NO132448C (en) 1975-11-12
BR7301814D0 (en) 1974-07-11
NO132448B (en) 1975-08-04
FR2176004B1 (en) 1976-09-10
GB1419137A (en) 1975-12-24
SE374970B (en) 1975-03-24

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