JPS54107618A - Monitoring method for transmission system - Google Patents

Monitoring method for transmission system

Info

Publication number
JPS54107618A
JPS54107618A JP1427478A JP1427478A JPS54107618A JP S54107618 A JPS54107618 A JP S54107618A JP 1427478 A JP1427478 A JP 1427478A JP 1427478 A JP1427478 A JP 1427478A JP S54107618 A JPS54107618 A JP S54107618A
Authority
JP
Japan
Prior art keywords
slot
station
signal
monitor
communication station
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
JP1427478A
Other languages
Japanese (ja)
Inventor
Masahiro Matsumoto
Hirofumi Kira
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP1427478A priority Critical patent/JPS54107618A/en
Publication of JPS54107618A publication Critical patent/JPS54107618A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
    • H04M9/022—Multiplex systems
    • H04M9/025—Time division multiplex systems, e.g. loop systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Small-Scale Networks (AREA)

Abstract

PURPOSE:To monitor the bypass state of each communication station concentratingly, by taking the specific slot in the frame going round the ring transmission line as monitor channel and by using the monitor channel for monitoring communication station. CONSTITUTION:In the format of signal constitution, the specific slot, for example #1 slot is used as the monitor channel. When the monitoring communication station 5 inputs the signal from the synchronizing communication station 2, the #1 slot is transmitted as the monitor signal (a). The signal in the #1 slot is gone round sequentially while being inputted to the communication stations 3a and 3b. When the station matched to the monitored station address of #1 slot is bypassed, since the #1 slot signal is not converted with the station as the response signal (b), the monitor station 5 can detect the bypass state.
JP1427478A 1978-02-10 1978-02-10 Monitoring method for transmission system Pending JPS54107618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1427478A JPS54107618A (en) 1978-02-10 1978-02-10 Monitoring method for transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1427478A JPS54107618A (en) 1978-02-10 1978-02-10 Monitoring method for transmission system

Publications (1)

Publication Number Publication Date
JPS54107618A true JPS54107618A (en) 1979-08-23

Family

ID=11856497

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1427478A Pending JPS54107618A (en) 1978-02-10 1978-02-10 Monitoring method for transmission system

Country Status (1)

Country Link
JP (1) JPS54107618A (en)

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