JPS5282105A - Information system of communication - Google Patents

Information system of communication

Info

Publication number
JPS5282105A
JPS5282105A JP15897675A JP15897675A JPS5282105A JP S5282105 A JPS5282105 A JP S5282105A JP 15897675 A JP15897675 A JP 15897675A JP 15897675 A JP15897675 A JP 15897675A JP S5282105 A JPS5282105 A JP S5282105A
Authority
JP
Japan
Prior art keywords
communication
information system
circuit
signal
reception
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
JP15897675A
Other languages
Japanese (ja)
Inventor
Masaki Fuchiyama
Tsutomu Ono
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 JP15897675A priority Critical patent/JPS5282105A/en
Publication of JPS5282105A publication Critical patent/JPS5282105A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer And Data Communications (AREA)
  • Small-Scale Networks (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)

Abstract

PURPOSE:To secure information of communication incapability for signal reception from terminal unit and operator when trouble occurs at the center by sending out alternately aural frequency signal and fault signal to the circuit at the time of the circuit reception.
JP15897675A 1975-12-29 1975-12-29 Information system of communication Pending JPS5282105A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15897675A JPS5282105A (en) 1975-12-29 1975-12-29 Information system of communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15897675A JPS5282105A (en) 1975-12-29 1975-12-29 Information system of communication

Publications (1)

Publication Number Publication Date
JPS5282105A true JPS5282105A (en) 1977-07-09

Family

ID=15683478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15897675A Pending JPS5282105A (en) 1975-12-29 1975-12-29 Information system of communication

Country Status (1)

Country Link
JP (1) JPS5282105A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57109060A (en) * 1980-12-26 1982-07-07 Fujitsu Ltd State information system of electronic computer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57109060A (en) * 1980-12-26 1982-07-07 Fujitsu Ltd State information system of electronic computer system

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