JPS624030B2 - - Google Patents
Info
- Publication number
- JPS624030B2 JPS624030B2 JP55051768A JP5176880A JPS624030B2 JP S624030 B2 JPS624030 B2 JP S624030B2 JP 55051768 A JP55051768 A JP 55051768A JP 5176880 A JP5176880 A JP 5176880A JP S624030 B2 JPS624030 B2 JP S624030B2
- Authority
- JP
- Japan
- Prior art keywords
- code
- signal
- loop
- circuit
- terminal
- 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
- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010998 test method Methods 0.000 claims 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 15
- 239000000470 constituent Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
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)
- 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 |
---|---|---|---|
JP5176880A JPS56149141A (en) | 1980-04-21 | 1980-04-21 | Loop constitution system of data transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5176880A JPS56149141A (en) | 1980-04-21 | 1980-04-21 | Loop constitution system of data transmission system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56149141A JPS56149141A (en) | 1981-11-18 |
JPS624030B2 true JPS624030B2 (ru) | 1987-01-28 |
Family
ID=12896121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5176880A Granted JPS56149141A (en) | 1980-04-21 | 1980-04-21 | Loop constitution system of data transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149141A (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2654551B2 (ja) * | 1987-12-26 | 1997-09-17 | 東洋電装株式会社 | スイッチの製造方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63227262A (ja) * | 1987-03-17 | 1988-09-21 | Matsushita Electric Ind Co Ltd | 信号検出回路 |
JPH01160139A (ja) * | 1987-12-16 | 1989-06-23 | Fujitsu Ltd | データの折返し試験方式 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54150907A (en) * | 1978-05-19 | 1979-11-27 | Fujitsu Ltd | Loop test control system |
-
1980
- 1980-04-21 JP JP5176880A patent/JPS56149141A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54150907A (en) * | 1978-05-19 | 1979-11-27 | Fujitsu Ltd | Loop test control system |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2654551B2 (ja) * | 1987-12-26 | 1997-09-17 | 東洋電装株式会社 | スイッチの製造方法 |
Also Published As
Publication number | Publication date |
---|---|
JPS56149141A (en) | 1981-11-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4009469A (en) | Loop communications system with method and apparatus for switch to secondary loop | |
US4980887A (en) | Digital communication apparatus and method | |
JP2578334B2 (ja) | デイジタル伝送方式 | |
US4271514A (en) | Loopback test for data transmission paths | |
US4742518A (en) | Fault location system for a digital transmission line | |
US3760354A (en) | Error rate detection system | |
US3965294A (en) | Method of and apparatus for testing transmission line carrying bipolar PCM signals | |
JP2948837B2 (ja) | 通信リンク・インターフェースの初期化および同期方法および通信リンクの受信機 | |
US4756005A (en) | Digital signal regenerator arranged for fault location | |
JPS5821866B2 (ja) | サイセイシキチユウケイキノエンカクカンシ オヨビ エンカクタンサソウチ | |
US4379206A (en) | Monitoring circuit for a descrambling device | |
JPS624030B2 (ru) | ||
US4509164A (en) | Microprocessor based digital to digital converting dataset | |
US4864617A (en) | System and method for reducing deadlock conditions caused by repeated transmission of data sequences equivalent to those used for inter-device signalling | |
JPS6239581B2 (ru) | ||
US3394349A (en) | Supervisory control system having repeat message control and count control of the number of repeat messages | |
US3609698A (en) | Control station for two-way address communication network | |
JPS6239582B2 (ru) | ||
US3535448A (en) | Two-channel time-multiplex transmission systems | |
JP2752654B2 (ja) | スクランブル化符号のデータ伝送方式 | |
US3528057A (en) | System for transmitting digital traffic signals | |
SU1035811A1 (ru) | Устройство дл контрол канала передачи данных | |
SU1129599A1 (ru) | Устройство дл сопр жени электронной вычислительной машины с каналами св зи | |
US3467776A (en) | System for automatic error detection and correction of telecommunicated signals | |
SU1151983A1 (ru) | Устройство дл моделировани систем передачи данных |