JPS54107618A - Monitoring method for transmission system - Google Patents
Monitoring method for transmission systemInfo
- Publication number
- JPS54107618A JPS54107618A JP1427478A JP1427478A JPS54107618A JP S54107618 A JPS54107618 A JP S54107618A JP 1427478 A JP1427478 A JP 1427478A JP 1427478 A JP1427478 A JP 1427478A JP S54107618 A JPS54107618 A JP S54107618A
- Authority
- JP
- Japan
- Prior art keywords
- slot
- station
- signal
- monitor
- communication station
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/02—Arrangements for interconnection not involving centralised switching involving a common line for all parties
- H04M9/022—Multiplex systems
- H04M9/025—Time division multiplex systems, e.g. loop systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Small-Scale Networks (AREA)
Abstract
PURPOSE:To monitor the bypass state of each communication station concentratingly, by taking the specific slot in the frame going round the ring transmission line as monitor channel and by using the monitor channel for monitoring communication station. CONSTITUTION:In the format of signal constitution, the specific slot, for example #1 slot is used as the monitor channel. When the monitoring communication station 5 inputs the signal from the synchronizing communication station 2, the #1 slot is transmitted as the monitor signal (a). The signal in the #1 slot is gone round sequentially while being inputted to the communication stations 3a and 3b. When the station matched to the monitored station address of #1 slot is bypassed, since the #1 slot signal is not converted with the station as the response signal (b), the monitor station 5 can detect the bypass state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1427478A JPS54107618A (en) | 1978-02-10 | 1978-02-10 | Monitoring method for transmission system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1427478A JPS54107618A (en) | 1978-02-10 | 1978-02-10 | Monitoring method for transmission system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54107618A true JPS54107618A (en) | 1979-08-23 |
Family
ID=11856497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1427478A Pending JPS54107618A (en) | 1978-02-10 | 1978-02-10 | Monitoring method for transmission system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54107618A (en) |
-
1978
- 1978-02-10 JP JP1427478A patent/JPS54107618A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6416145A (en) | Data communication system | |
JPS54107618A (en) | Monitoring method for transmission system | |
JPS5547530A (en) | Process monitor device | |
JPS56168446A (en) | Cordless telephone device | |
JPS56161750A (en) | Synchronizing system in telephone set | |
JPS54107617A (en) | Monitoring method for transmission system | |
JPS57116438A (en) | Radio communication system | |
JPS5452905A (en) | Data communication monitor | |
JPS5715539A (en) | Monitoring system for transmission system | |
JPS543402A (en) | Privacy communication system | |
JPS5228210A (en) | Loop data transmission system | |
JPS5447508A (en) | Monitor system for transmission line | |
JPS51114583A (en) | Equipment state indicator | |
JPS57194659A (en) | Controlling system for transmission of information | |
JPS57133794A (en) | Signal transmitting system | |
JPS52123118A (en) | Digital communication unit completed into duplicated reducdant circuit | |
JPS55133157A (en) | Integrated transmission system for digital line | |
JPS52134989A (en) | Traffic-control sign control system | |
JPS5662459A (en) | Instruction telephone system | |
SU587631A1 (en) | Device for remote monitoring of communication system regenerators | |
JPS54918A (en) | Facsimile transmission system | |
JPS57178447A (en) | Loop data transmission system | |
JPS55159647A (en) | Data error detection system | |
JPS57138240A (en) | Hairpin network | |
JPS51140405A (en) | Light communication monitoring system |