JPS5592064A - Subscriber's line test system - Google Patents
Subscriber's line test systemInfo
- Publication number
- JPS5592064A JPS5592064A JP16511978A JP16511978A JPS5592064A JP S5592064 A JPS5592064 A JP S5592064A JP 16511978 A JP16511978 A JP 16511978A JP 16511978 A JP16511978 A JP 16511978A JP S5592064 A JPS5592064 A JP S5592064A
- Authority
- JP
- Japan
- Prior art keywords
- test
- time
- counter
- signals
- unit
- 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.)
- Granted
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
- H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
- H04M3/28—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor
- H04M3/30—Automatic routine testing ; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor for subscriber's lines, for the local loop
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
Abstract
PURPOSE:To make a subscriber test possible even in call signal transmission by providing a timer to determine a test time and a timer to designate a test item. CONSTITUTION:Clock signals from clock signal generator 13 are applied to terminal CLK of counter 11 and are counted by counter 11, and a carry is generated after t seconds. Counter 12 counts carries of terminal CLK and applies signal outputs Q0, Q1 and Q2 of 1 and 0 forms to test unit 1, and a test item and a test time are determined there by combination of signals and the output of counter 11. Then, unit 1 has a timer to count time from the break time of call signals from an exhcnage, and counter 11 starts counting CLK signals and continues this counting unit the next call signal transmission. The test for one item of unit 1 is completed for t seconds. Since this time is shorter than a carry enable signal, a margin time exists after the test completion until the next call. Thus, the time of the call signal break of the exchange is utilized to perform the subscriber test.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16511978A JPS5923664B2 (en) | 1978-12-29 | 1978-12-29 | Subscriber line test method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16511978A JPS5923664B2 (en) | 1978-12-29 | 1978-12-29 | Subscriber line test method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5592064A true JPS5592064A (en) | 1980-07-12 |
JPS5923664B2 JPS5923664B2 (en) | 1984-06-04 |
Family
ID=15806266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16511978A Expired JPS5923664B2 (en) | 1978-12-29 | 1978-12-29 | Subscriber line test method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5923664B2 (en) |
-
1978
- 1978-12-29 JP JP16511978A patent/JPS5923664B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5923664B2 (en) | 1984-06-04 |
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