JPS5664594A - Test system for time-division multichannel - Google Patents
Test system for time-division multichannelInfo
- Publication number
- JPS5664594A JPS5664594A JP13982879A JP13982879A JPS5664594A JP S5664594 A JPS5664594 A JP S5664594A JP 13982879 A JP13982879 A JP 13982879A JP 13982879 A JP13982879 A JP 13982879A JP S5664594 A JPS5664594 A JP S5664594A
- Authority
- JP
- Japan
- Prior art keywords
- pilot signal
- time
- channel
- pilot
- detected
- 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
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/22—Arrangements for supervision, monitoring or testing
- H04M3/24—Arrangements for supervision, monitoring or testing with provision for checking the normal operation
- H04M3/244—Arrangements for supervision, monitoring or testing with provision for checking the normal operation for multiplex systems
Abstract
PURPOSE:To monitor the normalcy of the transmission line with no intervention of the software, by allotting the specific channel of the time-division channel for the reception of the pilot signal and then checking the contents of the received date for the relevant channel. CONSTITUTION:The signals of the pilot signal generators 1d and 2d are inserted into the specifictime slot under the control of the unit main body devices 1a and 2a, and then transmitted to the remote side via the transmission line 3. The pilot signals received at the units 2 and 1 are detected by the pilot signal detectors 2e and 1e. These pilot signals are detected at all times at the reception side, thus monitoring the fault of the multichannel.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13982879A JPS5664594A (en) | 1979-10-31 | 1979-10-31 | Test system for time-division multichannel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13982879A JPS5664594A (en) | 1979-10-31 | 1979-10-31 | Test system for time-division multichannel |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5664594A true JPS5664594A (en) | 1981-06-01 |
Family
ID=15254421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13982879A Pending JPS5664594A (en) | 1979-10-31 | 1979-10-31 | Test system for time-division multichannel |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5664594A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296833A (en) * | 1985-06-25 | 1986-12-27 | Nec Corp | Time division bus communication system |
EP0286295A2 (en) * | 1987-04-06 | 1988-10-12 | AT&T Corp. | Signaling arrangement |
-
1979
- 1979-10-31 JP JP13982879A patent/JPS5664594A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61296833A (en) * | 1985-06-25 | 1986-12-27 | Nec Corp | Time division bus communication system |
EP0286295A2 (en) * | 1987-04-06 | 1988-10-12 | AT&T Corp. | Signaling arrangement |
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