JPS5640542B2 - - Google Patents
Info
- Publication number
- JPS5640542B2 JPS5640542B2 JP15856475A JP15856475A JPS5640542B2 JP S5640542 B2 JPS5640542 B2 JP S5640542B2 JP 15856475 A JP15856475 A JP 15856475A JP 15856475 A JP15856475 A JP 15856475A JP S5640542 B2 JPS5640542 B2 JP S5640542B2
- Authority
- JP
- Japan
- 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.)
- Expired
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)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15856475A JPS5283111A (en) | 1975-12-30 | 1975-12-30 | Testing for subscriber s line |
| US05/721,216 US4076971A (en) | 1975-09-12 | 1976-09-08 | Subscriber line testing system |
| CA260,828A CA1054275A (en) | 1975-09-12 | 1976-09-09 | Subscriber line testing system including exchange semiconductor cross point switching |
| DE19762640805 DE2640805A1 (de) | 1975-09-12 | 1976-09-10 | Teilnehmerleitungs-pruefeinrichtung |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15856475A JPS5283111A (en) | 1975-12-30 | 1975-12-30 | Testing for subscriber s line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5283111A JPS5283111A (en) | 1977-07-11 |
| JPS5640542B2 true JPS5640542B2 (US20100223739A1-20100909-C00025.png) | 1981-09-21 |
Family
ID=15674444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15856475A Granted JPS5283111A (en) | 1975-09-12 | 1975-12-30 | Testing for subscriber s line |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5283111A (US20100223739A1-20100909-C00025.png) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416785B2 (US20100223739A1-20100909-C00025.png) * | 1981-04-30 | 1992-03-25 | Minolta Camera Kk | |
| JPH0530269B2 (US20100223739A1-20100909-C00025.png) * | 1983-12-15 | 1993-05-07 | Sharp Kk |
-
1975
- 1975-12-30 JP JP15856475A patent/JPS5283111A/ja active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0416785B2 (US20100223739A1-20100909-C00025.png) * | 1981-04-30 | 1992-03-25 | Minolta Camera Kk | |
| JPH0530269B2 (US20100223739A1-20100909-C00025.png) * | 1983-12-15 | 1993-05-07 | Sharp Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5283111A (en) | 1977-07-11 |
