JPS574635A - Fault detecting circuit of one-to-multi-signal transmission system - Google Patents

Fault detecting circuit of one-to-multi-signal transmission system

Info

Publication number
JPS574635A
JPS574635A JP7781880A JP7781880A JPS574635A JP S574635 A JPS574635 A JP S574635A JP 7781880 A JP7781880 A JP 7781880A JP 7781880 A JP7781880 A JP 7781880A JP S574635 A JPS574635 A JP S574635A
Authority
JP
Japan
Prior art keywords
circuit
turned
output
given
error
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
JP7781880A
Other languages
Japanese (ja)
Inventor
Akihito Sakurai
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7781880A priority Critical patent/JPS574635A/en
Publication of JPS574635A publication Critical patent/JPS574635A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To detect whether a circuit is normal or not and at the same time to detect an error of a slave station when the circuit is normal, by deciding whether a transmission data signal is sent back in a prescribed frequency or not. CONSTITUTION:An FF2 is set by a period pulse signal T2, and 1 is always delivered for the output delivered from an OR circuit OR1. In case when the outputs given from output terminals Q1, Q2 and Q3 of a shift register SR1 are turned to O, the output given from an AND circuit AND1 is turned to 1. Then the outputs from AND circuits AND2 and AND3 are turned to 0 and 1 respectively to deliver an alarm signal. With an input of an error message, the output given from an AND circuit AND4 delivers an error signal.
JP7781880A 1980-06-11 1980-06-11 Fault detecting circuit of one-to-multi-signal transmission system Pending JPS574635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7781880A JPS574635A (en) 1980-06-11 1980-06-11 Fault detecting circuit of one-to-multi-signal transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7781880A JPS574635A (en) 1980-06-11 1980-06-11 Fault detecting circuit of one-to-multi-signal transmission system

Publications (1)

Publication Number Publication Date
JPS574635A true JPS574635A (en) 1982-01-11

Family

ID=13644604

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7781880A Pending JPS574635A (en) 1980-06-11 1980-06-11 Fault detecting circuit of one-to-multi-signal transmission system

Country Status (1)

Country Link
JP (1) JPS574635A (en)

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