JPS54150904A - Display unit for circuit traffic - Google Patents

Display unit for circuit traffic

Info

Publication number
JPS54150904A
JPS54150904A JP5966478A JP5966478A JPS54150904A JP S54150904 A JPS54150904 A JP S54150904A JP 5966478 A JP5966478 A JP 5966478A JP 5966478 A JP5966478 A JP 5966478A JP S54150904 A JPS54150904 A JP S54150904A
Authority
JP
Japan
Prior art keywords
traffic
flashing
display unit
display element
transmission circuit
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
JP5966478A
Other languages
Japanese (ja)
Inventor
Harumi Nagasawa
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 JP5966478A priority Critical patent/JPS54150904A/en
Publication of JPS54150904A publication Critical patent/JPS54150904A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

PURPOSE:To grasp the traffic which comes in and goes out the system by flashing the display element in accordance with the transfer data polarity of the digital interface in the transmission circuit and then converting the brightness of flashing into the electric signals for the meter indication. CONSTITUTION:The indicator takes in both the transmission and reception data of the transmission circuit and contains plural number of display element 12' which flash according to ''1'' and ''0'' of the data polarity. The total sum of the light emitted from element 12' is detected through photo detector 14, and the detected output is indicated through indicator 15. Thus, the traffic coming in and going out the system can be grasped.
JP5966478A 1978-05-19 1978-05-19 Display unit for circuit traffic Pending JPS54150904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5966478A JPS54150904A (en) 1978-05-19 1978-05-19 Display unit for circuit traffic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5966478A JPS54150904A (en) 1978-05-19 1978-05-19 Display unit for circuit traffic

Publications (1)

Publication Number Publication Date
JPS54150904A true JPS54150904A (en) 1979-11-27

Family

ID=13119681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5966478A Pending JPS54150904A (en) 1978-05-19 1978-05-19 Display unit for circuit traffic

Country Status (1)

Country Link
JP (1) JPS54150904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230446U (en) * 1985-08-08 1987-02-24

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6230446U (en) * 1985-08-08 1987-02-24

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