JPS6336703B2 - - Google Patents
Info
- Publication number
- JPS6336703B2 JPS6336703B2 JP56155272A JP15527281A JPS6336703B2 JP S6336703 B2 JPS6336703 B2 JP S6336703B2 JP 56155272 A JP56155272 A JP 56155272A JP 15527281 A JP15527281 A JP 15527281A JP S6336703 B2 JPS6336703 B2 JP S6336703B2
- Authority
- JP
- Japan
- Prior art keywords
- modem
- test
- line
- loop
- transmitting
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
- H04L1/242—Testing correct operation by comparing a transmitted test signal with a locally generated replica
- H04L1/243—Testing correct operation by comparing a transmitted test signal with a locally generated replica at the transmitter, using a loop-back
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
- Detection And Prevention Of Errors In Transmission (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56155272A JPS5857844A (ja) | 1981-09-30 | 1981-09-30 | 試験制御方式 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56155272A JPS5857844A (ja) | 1981-09-30 | 1981-09-30 | 試験制御方式 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5857844A JPS5857844A (ja) | 1983-04-06 |
| JPS6336703B2 true JPS6336703B2 (cs) | 1988-07-21 |
Family
ID=15602270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56155272A Granted JPS5857844A (ja) | 1981-09-30 | 1981-09-30 | 試験制御方式 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5857844A (cs) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63296539A (ja) * | 1987-05-28 | 1988-12-02 | Matsushita Electric Ind Co Ltd | ホ−ムバスシステム用通信制御装置 |
| JPH06105924B2 (ja) * | 1987-07-29 | 1994-12-21 | 日本電気株式会社 | 集合モデム集中制御方式 |
| JPH0237867A (ja) * | 1988-07-28 | 1990-02-07 | Fujitsu Denso Ltd | 折返試験制御方式 |
| JPH04264863A (ja) * | 1991-02-19 | 1992-09-21 | Fujitsu Ltd | 障害特定方式 |
-
1981
- 1981-09-30 JP JP56155272A patent/JPS5857844A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5857844A (ja) | 1983-04-06 |
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