JPS6439851A - Distribution control type exchanging device - Google Patents
Distribution control type exchanging deviceInfo
- Publication number
- JPS6439851A JPS6439851A JP62196785A JP19678587A JPS6439851A JP S6439851 A JPS6439851 A JP S6439851A JP 62196785 A JP62196785 A JP 62196785A JP 19678587 A JP19678587 A JP 19678587A JP S6439851 A JPS6439851 A JP S6439851A
- Authority
- JP
- Japan
- Prior art keywords
- stand
- optical bus
- system optical
- reception
- transmission
- 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
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To detect whether a fault exists in a stand-by optical bus or not, and to cope therewith, by providing a stand-by system optical bus diagnostic device which can always confirm the normality of a function of the stand-by system optical bus. CONSTITUTION:A diagnostic data passes through a stand-by system optical bus 102, is received by a receiving system of a stand-by system optical bus diagnostic device 10, and at the time of transmission and reception, whether transmission and reception have been completed normally or not is checked, and in case of NO, respectively, it is displayed as an error output. When transmission is completed normally, reception interruption monitoring by the receiving system is executed, the diagnostic data transmitted through the stand-by system optical bus 102 is received, the diagnostic data of transmission and the diagnostic data of reception are compared and collated by the stand-by system optical bus diagnostic device 10, and when both the data do not coincide, it is displayed as an error output, and when they coincide, a diagnostic data is generated again and transmitted to the stand-by system optical bus 102, and a function check of the stand-by system optical bus is continued. In such a way, the stand-by system optical bus can perform the original function as the stand-by system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196785A JPS6439851A (en) | 1987-08-05 | 1987-08-05 | Distribution control type exchanging device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62196785A JPS6439851A (en) | 1987-08-05 | 1987-08-05 | Distribution control type exchanging device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439851A true JPS6439851A (en) | 1989-02-10 |
Family
ID=16363597
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62196785A Pending JPS6439851A (en) | 1987-08-05 | 1987-08-05 | Distribution control type exchanging device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439851A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06332825A (en) * | 1993-05-26 | 1994-12-02 | Nec Corp | Automatic fault detection system |
-
1987
- 1987-08-05 JP JP62196785A patent/JPS6439851A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06332825A (en) * | 1993-05-26 | 1994-12-02 | Nec Corp | Automatic fault detection system |
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