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GB2087610B - Communications systems - Google Patents

Communications systems

Info

Publication number
GB2087610B
GB2087610B GB8032970A GB8032970A GB2087610B GB 2087610 B GB2087610 B GB 2087610B GB 8032970 A GB8032970 A GB 8032970A GB 8032970 A GB8032970 A GB 8032970A GB 2087610 B GB2087610 B GB 2087610B
Authority
GB
United Kingdom
Prior art keywords
communications systems
communications
systems
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
GB8032970A
Other versions
GB2087610A (en
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.)
MULTIFORM ELECTRONICS Ltd
Original Assignee
MULTIFORM ELECTRONICS Ltd
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 MULTIFORM ELECTRONICS Ltd filed Critical MULTIFORM ELECTRONICS Ltd
Priority to GB8032970A priority Critical patent/GB2087610B/en
Publication of GB2087610A publication Critical patent/GB2087610A/en
Application granted granted Critical
Publication of GB2087610B publication Critical patent/GB2087610B/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
    • 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
    • G08B25/009—Signalling of the alarm condition to a substation whose identity is signalled to a central station, e.g. relaying alarm signals in order to extend communication range
    • 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
    • G08B25/014—Alarm signalling to a central station with two-way communication, e.g. with signalling back
    • 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
    • G08B25/14—Central alarm receiver or annunciator arrangements

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Alarm Systems (AREA)
GB8032970A 1980-10-13 1980-10-13 Communications systems Expired GB2087610B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8032970A GB2087610B (en) 1980-10-13 1980-10-13 Communications systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8032970A GB2087610B (en) 1980-10-13 1980-10-13 Communications systems

Publications (2)

Publication Number Publication Date
GB2087610A GB2087610A (en) 1982-05-26
GB2087610B true GB2087610B (en) 1984-08-08

Family

ID=10516629

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8032970A Expired GB2087610B (en) 1980-10-13 1980-10-13 Communications systems

Country Status (1)

Country Link
GB (1) GB2087610B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4588987A (en) * 1983-09-13 1986-05-13 International Business Machines Corp. Display system for monitoring and alarm system
FR2574916A1 (en) * 1984-12-17 1986-06-20 Chevaillier Eric Device for remotely controlling the correct operation of refrigerating or air conditioning installations
FR2582430B1 (en) * 1985-05-23 1987-10-23 Euram Umpi Ltd METHOD FOR TRANSMITTING SIGNALS INTENDED, PARTICULARLY FOR MONITORING SPECIAL EQUIPMENT, SUCH AS FOR EXAMPLE ALARM EQUIPMENT INSTALLED IN APARTMENTS, AND SYSTEM FOR CARRYING OUT SAID METHOD
DE102008001548B4 (en) * 2008-05-05 2017-03-02 Robert Bosch Gmbh Subscriber node of a communication system, communication system and method for transmitting a message in the communication system

Also Published As

Publication number Publication date
GB2087610A (en) 1982-05-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee