JPS56165446A - Alarm separating system for loop transmission - Google Patents

Alarm separating system for loop transmission

Info

Publication number
JPS56165446A
JPS56165446A JP6859180A JP6859180A JPS56165446A JP S56165446 A JPS56165446 A JP S56165446A JP 6859180 A JP6859180 A JP 6859180A JP 6859180 A JP6859180 A JP 6859180A JP S56165446 A JPS56165446 A JP S56165446A
Authority
JP
Japan
Prior art keywords
alarm
group
produced
separated
separation
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.)
Pending
Application number
JP6859180A
Other languages
Japanese (ja)
Inventor
Shuji Kimura
Takeshi Sakai
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP6859180A priority Critical patent/JPS56165446A/en
Publication of JPS56165446A publication Critical patent/JPS56165446A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Small-Scale Networks (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To reduce the hard scale, by dividing an alarm for every group, securing operation for any of the alarms among those groups to display the group-based alarm and then giving an indication for selection of an alarm among the groups. CONSTITUTION:A multiplex signal (a) of an alarm produced from each of the devices which are decentralized is separated by a separating circuit 1. A flip-flop 4 is used for this separation. The separated signals are brought to continue for a certain period at a timer circuit 5 respectively to produce an alarm corresponding to the group. After this, when a group designation is given to the produced alarm by an operator, the desingated group pulse is produced. Furthermore a detailed alarm is selected through a selecting circuit 3 with use of a selection indicatibg signal to produce an alarm. In such way, a separation can be made for every group with installation of a timer even in case many alarms have to be separated.
JP6859180A 1980-05-23 1980-05-23 Alarm separating system for loop transmission Pending JPS56165446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6859180A JPS56165446A (en) 1980-05-23 1980-05-23 Alarm separating system for loop transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6859180A JPS56165446A (en) 1980-05-23 1980-05-23 Alarm separating system for loop transmission

Publications (1)

Publication Number Publication Date
JPS56165446A true JPS56165446A (en) 1981-12-19

Family

ID=13378182

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6859180A Pending JPS56165446A (en) 1980-05-23 1980-05-23 Alarm separating system for loop transmission

Country Status (1)

Country Link
JP (1) JPS56165446A (en)

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