JPS6429156A - Data exchange transmission line monitor system - Google Patents
Data exchange transmission line monitor systemInfo
- Publication number
- JPS6429156A JPS6429156A JP18515487A JP18515487A JPS6429156A JP S6429156 A JPS6429156 A JP S6429156A JP 18515487 A JP18515487 A JP 18515487A JP 18515487 A JP18515487 A JP 18515487A JP S6429156 A JPS6429156 A JP S6429156A
- Authority
- JP
- Japan
- Prior art keywords
- communication line
- fault
- carrier frequency
- communication
- modem
- 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
Abstract
PURPOSE:To use instantly a bypass route by monitoring a communication line at a prescribed period at the time of generating a fault of the communication line by means of a communication controller and applying initial setting of the communication line as required. CONSTITUTION:The communication controller 3 monitors the communication line at a prescribed period when a data frame received from a communication line has a reception data frame error due to a fault of a communication line and the stop of data transmission/reception due to inter-MODEM stack takes place. Moreover, a central controller 1, in the event of a fault of the communication line, uses the bypass route to change the communication path instantly and decrease the carrier frequency of the communication line tentatively during the monitor of the communication line when the MODEM stack is a cause and applies initial setting to the MODEM to increase the carrier frequency for a prescribed time to prevent stack. Thus, when a fault takes place in the communication line, the carrier frequency is decreased tentatively and increases the carrier frequency for a prescribed time to apply initial setting to the communication line and the MODEM thereby controlling the data transmission for the monitor of transmission and using easily the bypass route.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18515487A JPS6429156A (en) | 1987-07-24 | 1987-07-24 | Data exchange transmission line monitor system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18515487A JPS6429156A (en) | 1987-07-24 | 1987-07-24 | Data exchange transmission line monitor system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6429156A true JPS6429156A (en) | 1989-01-31 |
Family
ID=16165792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18515487A Pending JPS6429156A (en) | 1987-07-24 | 1987-07-24 | Data exchange transmission line monitor system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6429156A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625648A (en) * | 1994-03-23 | 1997-04-29 | Telefonaktiebolaget Lm Ericsson | Signal receiving and signal processing unit |
-
1987
- 1987-07-24 JP JP18515487A patent/JPS6429156A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5625648A (en) * | 1994-03-23 | 1997-04-29 | Telefonaktiebolaget Lm Ericsson | Signal receiving and signal processing unit |
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