JPS6439843A - Subordinate synchronization type digital transmission system - Google Patents
Subordinate synchronization type digital transmission systemInfo
- Publication number
- JPS6439843A JPS6439843A JP62195251A JP19525187A JPS6439843A JP S6439843 A JPS6439843 A JP S6439843A JP 62195251 A JP62195251 A JP 62195251A JP 19525187 A JP19525187 A JP 19525187A JP S6439843 A JPS6439843 A JP S6439843A
- Authority
- JP
- Japan
- Prior art keywords
- station
- subordinate synchronization
- synchronized
- oscillator
- output
- 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
Links
Landscapes
- Synchronisation In Digital Transmission Systems (AREA)
Abstract
PURPOSE:To contrive the normal maintenance of bidirectional communication in a transmission line except a section in which a transmission is disconnected, by sending out a subordinate synchronization clock to a preceding station, in each repeater station. CONSTITUTION:The output of a subordinate synchronization oscillator 6 of a repeater station 2, synchronized by a clock from an original oscillator 5 of a reference original oscillation terminal station 1 is sent to a repeater station 3, and also, returned to the terminal station 1 and synchronized with a subordinate synchronization oscillator 9. A subordinate synchronization oscillator 7 of the repeater station 3 is synchronized by the output of the oscillator 6 in the same way, but its output is sent out to the last terminal station 4 in the same way, and also, sent back to the repeater station 2, and synchronized with a subordinate synchronization oscillator 10. The output of subordinate synchronization oscillator 8 of the last terminal station 4 is sent back as it is to the repeater station 3, and synchronized with a subordinate synchronization oscillator 11 therein. Accordingly, the oscillators 5-11 become all periods, that is, the form with which the whole system has been synchronized. In such a way, even when a transmission line has been disconnected between some stations, the bidirectional communication between its preceding station and the succeeding station can be executed normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195251A JPS6439843A (en) | 1987-08-06 | 1987-08-06 | Subordinate synchronization type digital transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195251A JPS6439843A (en) | 1987-08-06 | 1987-08-06 | Subordinate synchronization type digital transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6439843A true JPS6439843A (en) | 1989-02-10 |
Family
ID=16338020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62195251A Pending JPS6439843A (en) | 1987-08-06 | 1987-08-06 | Subordinate synchronization type digital transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6439843A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015188290A (en) * | 2014-03-27 | 2015-10-29 | 株式会社ダイヘン | Device having communication function, inverter device, and method for those devices to start communicating with another device |
| US10247764B2 (en) | 2013-07-25 | 2019-04-02 | Daihen Corporation | Method for controlling devices provided with communication function, and device used in implementing the method |
-
1987
- 1987-08-06 JP JP62195251A patent/JPS6439843A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10247764B2 (en) | 2013-07-25 | 2019-04-02 | Daihen Corporation | Method for controlling devices provided with communication function, and device used in implementing the method |
| US11029345B2 (en) | 2013-07-25 | 2021-06-08 | Daihen Corporation | Method for controlling devices provided with communication function, and device used in implementing the method |
| US11624760B2 (en) | 2013-07-25 | 2023-04-11 | Daihen Corporation | Method for controlling devices provided with communication function, and device used in implementing the method |
| JP2015188290A (en) * | 2014-03-27 | 2015-10-29 | 株式会社ダイヘン | Device having communication function, inverter device, and method for those devices to start communicating with another device |
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