GB2051439B - Checking facility for data signalling systems - Google Patents

Checking facility for data signalling systems

Info

Publication number
GB2051439B
GB2051439B GB7919785A GB7919785A GB2051439B GB 2051439 B GB2051439 B GB 2051439B GB 7919785 A GB7919785 A GB 7919785A GB 7919785 A GB7919785 A GB 7919785A GB 2051439 B GB2051439 B GB 2051439B
Authority
GB
United Kingdom
Prior art keywords
signalling systems
data signalling
checking facility
facility
checking
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
GB7919785A
Other versions
GB2051439A (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.)
Price-Smitrh I C D
Original Assignee
Price-Smitrh I C D
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 Price-Smitrh I C D filed Critical Price-Smitrh I C D
Priority to GB7919785A priority Critical patent/GB2051439B/en
Publication of GB2051439A publication Critical patent/GB2051439A/en
Application granted granted Critical
Publication of GB2051439B publication Critical patent/GB2051439B/en
Expired legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
GB7919785A 1979-06-07 1979-06-07 Checking facility for data signalling systems Expired GB2051439B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7919785A GB2051439B (en) 1979-06-07 1979-06-07 Checking facility for data signalling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7919785A GB2051439B (en) 1979-06-07 1979-06-07 Checking facility for data signalling systems

Publications (2)

Publication Number Publication Date
GB2051439A GB2051439A (en) 1981-01-14
GB2051439B true GB2051439B (en) 1983-02-02

Family

ID=10505678

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7919785A Expired GB2051439B (en) 1979-06-07 1979-06-07 Checking facility for data signalling systems

Country Status (1)

Country Link
GB (1) GB2051439B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU557050B2 (en) * 1983-11-08 1986-12-04 Nittan Company Limited Surveillance control apparatus for security system
GB2301465B (en) * 1995-02-21 1998-09-23 Ivan Martin Ginger Apparatus with remotely operable units

Also Published As

Publication number Publication date
GB2051439A (en) 1981-01-14

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Legal Events

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