JPS5657384A - Continuity test system of channel - Google Patents
Continuity test system of channelInfo
- Publication number
- JPS5657384A JPS5657384A JP13264579A JP13264579A JPS5657384A JP S5657384 A JPS5657384 A JP S5657384A JP 13264579 A JP13264579 A JP 13264579A JP 13264579 A JP13264579 A JP 13264579A JP S5657384 A JPS5657384 A JP S5657384A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- time
- ringing tone
- synchronization
- well
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (AREA)
Abstract
PURPOSE:To eliminate the delaying circuit as well as the useless queuing time, by performing a continuity test with the synchronization secured among the switch modules utilyzing ringing tone generator output signal. CONSTITUTION:The ringing tone generator RBT transmits the signal which is the reference for the transmission time, the breaking time and the like of the ringing tone to the subscriber as well as the timing generator CTG. The generator CTG produces the signal to give the synchronization to the timing for the continuity test. This signal is then applied to the main control unit MCC. And the unit MCC gives a command for start of the continuity test to the secondary control units CC1, CCn and others in each module. Each secondary control unit switches the ringing tone bus to the call bus and at the same time applies the fixed signal to the dropper/ inserter control memory DIM in order to insert the test pattern into the time slot of both the calling and called subscribers each as well as to sample the test pattern passed through the time-division channel. Then the synchronization can be secured among all check circuits CHK in the modules SM1-SMn to start the check for the test pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13264579A JPS5657384A (en) | 1979-10-15 | 1979-10-15 | Continuity test system of channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13264579A JPS5657384A (en) | 1979-10-15 | 1979-10-15 | Continuity test system of channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5657384A true JPS5657384A (en) | 1981-05-19 |
Family
ID=15086160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13264579A Pending JPS5657384A (en) | 1979-10-15 | 1979-10-15 | Continuity test system of channel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5657384A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609259A (en) * | 1983-06-16 | 1985-01-18 | ミテル・コ−ポレ−シヨン | Switching system testing circuit |
-
1979
- 1979-10-15 JP JP13264579A patent/JPS5657384A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS609259A (en) * | 1983-06-16 | 1985-01-18 | ミテル・コ−ポレ−シヨン | Switching system testing circuit |
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