JPS5452905A - Data communication monitor - Google Patents

Data communication monitor

Info

Publication number
JPS5452905A
JPS5452905A JP11961777A JP11961777A JPS5452905A JP S5452905 A JPS5452905 A JP S5452905A JP 11961777 A JP11961777 A JP 11961777A JP 11961777 A JP11961777 A JP 11961777A JP S5452905 A JPS5452905 A JP S5452905A
Authority
JP
Japan
Prior art keywords
signal
time
character
buffer
data
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
JP11961777A
Other languages
Japanese (ja)
Other versions
JPS5826224B2 (en
Inventor
Yoshihiko Watanabe
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 JP52119617A priority Critical patent/JPS5826224B2/en
Publication of JPS5452905A publication Critical patent/JPS5452905A/en
Publication of JPS5826224B2 publication Critical patent/JPS5826224B2/en
Expired 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)
  • Debugging And Monitoring (AREA)
  • Digital Computer Display Output (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

PURPOSE:To ensure accurate monitoring for the operation state of the communication system by displaying the time during which no data transfer is not carried out via the idle time timer. CONSTITUTION:The transmission/reception data signal given from monitor line 7 is supplied to receiver 9 via compounder 8. And the bit series signal on the communication circuit is synchronized with a fixed bit unit to be converted to the character of the code, and then displayed on CRT12 via buffer 11 by receiving end signal 10 which is produced with every conversion of one character. The idle time timer 13 is retured to the original state via signal 10, and the character to display the time lapse to buffer 11 is transmitted as the data when no signal 10 is produced while the fixed time is calculated. At the same time, time lapse signal 10'' is transmitted. Then false end signal 10' is supplied to buffer 11 via the logic sum between signal 10 and 10'', and the state of the communication circuit is displayed between data.
JP52119617A 1977-10-05 1977-10-05 data communication monitor Expired JPS5826224B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP52119617A JPS5826224B2 (en) 1977-10-05 1977-10-05 data communication monitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP52119617A JPS5826224B2 (en) 1977-10-05 1977-10-05 data communication monitor

Publications (2)

Publication Number Publication Date
JPS5452905A true JPS5452905A (en) 1979-04-25
JPS5826224B2 JPS5826224B2 (en) 1983-06-01

Family

ID=14765850

Family Applications (1)

Application Number Title Priority Date Filing Date
JP52119617A Expired JPS5826224B2 (en) 1977-10-05 1977-10-05 data communication monitor

Country Status (1)

Country Link
JP (1) JPS5826224B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112149A (en) * 1980-02-08 1981-09-04 Hitachi Ltd Condensing method for transmission circuit trace information
JPS56116355A (en) * 1980-02-12 1981-09-12 Ibm Data terminal unit
JPS57187741A (en) * 1981-05-14 1982-11-18 Mitsubishi Electric Corp Display device
JPS57207939A (en) * 1981-06-16 1982-12-20 Ibm Data communication system
JPS6213140A (en) * 1985-07-10 1987-01-21 Fujitsu Ltd Line trace file system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56112149A (en) * 1980-02-08 1981-09-04 Hitachi Ltd Condensing method for transmission circuit trace information
JPS631786B2 (en) * 1980-02-08 1988-01-14 Hitachi Ltd
JPS56116355A (en) * 1980-02-12 1981-09-12 Ibm Data terminal unit
JPH0152948B2 (en) * 1980-02-12 1989-11-10 Intaanashonaru Bijinesu Mashiinzu Corp
JPS57187741A (en) * 1981-05-14 1982-11-18 Mitsubishi Electric Corp Display device
JPS57207939A (en) * 1981-06-16 1982-12-20 Ibm Data communication system
JPS6213140A (en) * 1985-07-10 1987-01-21 Fujitsu Ltd Line trace file system
JPH0423981B2 (en) * 1985-07-10 1992-04-23 Fujitsu Ltd

Also Published As

Publication number Publication date
JPS5826224B2 (en) 1983-06-01

Similar Documents

Publication Publication Date Title
JPS6477339A (en) Collision detecting type lan terminal interface module
JPS5452905A (en) Data communication monitor
JPS5621443A (en) Transmission unit
JPS5563165A (en) Data collection device
JPS54118107A (en) Automatic dial device
JPS5671358A (en) Control system for button telephone
JPS57178447A (en) Loop data transmission system
JPS5490470A (en) Signal transmission system
JPS56762A (en) Status display unit for communication line
JPS5613894A (en) Simultaneous control system for polling-type monitor control system
JPS5495105A (en) Data transfer system
JPS54161216A (en) Time-division communication system
JPS57135545A (en) Diagnosis system for data transmission system
JPS5437527A (en) Receiver for still picture
JPS5394810A (en) Signal monitor system
JPS56135208A (en) Set value change system
JPS5686547A (en) Loop transmitter
JPS57178530A (en) Key input equipment
JPS5575362A (en) Transmission system for order monitor control information
JPS54129281A (en) Cyclic digital information transmission unit
JPS5593342A (en) Delivery circuit for monitoring item
JPS553222A (en) Signal transmission/reception system
JPS5467302A (en) Counter device for bit error
JPS5739637A (en) Signal transmission system
JPS5496940A (en) Information transmission system