JPS5452905A - Data communication monitor - Google Patents
Data communication monitorInfo
- 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
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.
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)
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 |
-
1977
- 1977-10-05 JP JP52119617A patent/JPS5826224B2/en not_active Expired
Cited By (8)
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 |
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