JPS5784644A - Detection system of transmission line termination state - Google Patents

Detection system of transmission line termination state

Info

Publication number
JPS5784644A
JPS5784644A JP55161726A JP16172680A JPS5784644A JP S5784644 A JPS5784644 A JP S5784644A JP 55161726 A JP55161726 A JP 55161726A JP 16172680 A JP16172680 A JP 16172680A JP S5784644 A JPS5784644 A JP S5784644A
Authority
JP
Japan
Prior art keywords
master station
signal
connection
transmission line
transmits
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.)
Granted
Application number
JP55161726A
Other languages
Japanese (ja)
Other versions
JPS6338131B2 (en
Inventor
Takashi Matsuda
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 JP55161726A priority Critical patent/JPS5784644A/en
Publication of JPS5784644A publication Critical patent/JPS5784644A/en
Publication of JPS6338131B2 publication Critical patent/JPS6338131B2/ja
Granted 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
    • H04L43/50—Testing arrangements

Landscapes

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

Abstract

PURPOSE:To make the correspondence to a terminal device suitable, and to make the bracketing of failures efficient, by discriminating the presence of connection of the terminal device to a terminator at a master station through the use of a specific pattern. CONSTITUTION:A specific pattern X is inserted to a specific time slot on a transmission frame at a master station 1, a transmission signal is transmitted to each terminal device 3 via each terminator 2 and a transmission line 4 at all times, a device 3 inserts a specific pattern Y to the same frame pattern as the signal from the master station 1 and transmits it to the master station 1. The device 2 has a switching circuit 5, transmits the transmission signal to the master station 1 at the connection of the device 3, transmits a signal from the master station to the device 3 and returns the signal from the master station to the master station via the circuit 5 at the non-connection of the device 3. The master station 1 discriminates the connection of the device 3 through the reception of patterns X,Y for specified correspondence.
JP55161726A 1980-11-17 1980-11-17 Detection system of transmission line termination state Granted JPS5784644A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55161726A JPS5784644A (en) 1980-11-17 1980-11-17 Detection system of transmission line termination state

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55161726A JPS5784644A (en) 1980-11-17 1980-11-17 Detection system of transmission line termination state

Publications (2)

Publication Number Publication Date
JPS5784644A true JPS5784644A (en) 1982-05-27
JPS6338131B2 JPS6338131B2 (en) 1988-07-28

Family

ID=15740709

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55161726A Granted JPS5784644A (en) 1980-11-17 1980-11-17 Detection system of transmission line termination state

Country Status (1)

Country Link
JP (1) JPS5784644A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470358A (en) * 2018-07-27 2021-03-09 日新电机株式会社 Power supply system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112470358A (en) * 2018-07-27 2021-03-09 日新电机株式会社 Power supply system

Also Published As

Publication number Publication date
JPS6338131B2 (en) 1988-07-28

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