JPS645253A - Channel normality confirming system - Google Patents
Channel normality confirming systemInfo
- Publication number
- JPS645253A JPS645253A JP16264187A JP16264187A JPS645253A JP S645253 A JPS645253 A JP S645253A JP 16264187 A JP16264187 A JP 16264187A JP 16264187 A JP16264187 A JP 16264187A JP S645253 A JPS645253 A JP S645253A
- Authority
- JP
- Japan
- Prior art keywords
- test pattern
- control section
- idle
- channel
- talking channel
- 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
- Monitoring And Testing Of Exchanges (AREA)
Abstract
PURPOSE:To simply judge the normality of an idle talking channel scheduled to be in use at call connection by inserting a prescribed test pattern to each channel of a digital trunk at idle state and sending the result so as to check the returned test pattern. CONSTITUTION:A talking channel insertion circuit 9 is operated by a test pattern control section 8 by an instruction of a central control section 3 to an idle talking channel to insert a prescribed test pattern to each idle talking channel. The test pattern control section 8 uses the talking channel locking circuit 10 to lock the data and to check the normality of the test pattern for each idle talking channel from an opposite station and the result is informed by the instruction from the central control section 3. Thus, its own station exchange checks the presence of a call request by inquiring about the normality of the idle talking channel scheduled to be in use to the central control section 3.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16264187A JPS645253A (en) | 1987-06-29 | 1987-06-29 | Channel normality confirming system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16264187A JPS645253A (en) | 1987-06-29 | 1987-06-29 | Channel normality confirming system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS645253A true JPS645253A (en) | 1989-01-10 |
Family
ID=15758480
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16264187A Pending JPS645253A (en) | 1987-06-29 | 1987-06-29 | Channel normality confirming system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS645253A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05122346A (en) * | 1991-04-23 | 1993-05-18 | Samsung Electron Co Ltd | Method of inspecting continuity of all electrical pbx |
-
1987
- 1987-06-29 JP JP16264187A patent/JPS645253A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05122346A (en) * | 1991-04-23 | 1993-05-18 | Samsung Electron Co Ltd | Method of inspecting continuity of all electrical pbx |
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