JPS5528633B2 - - Google Patents
Info
- Publication number
- JPS5528633B2 JPS5528633B2 JP4354976A JP4354976A JPS5528633B2 JP S5528633 B2 JPS5528633 B2 JP S5528633B2 JP 4354976 A JP4354976 A JP 4354976A JP 4354976 A JP4354976 A JP 4354976A JP S5528633 B2 JPS5528633 B2 JP S5528633B2
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Maintenance And Management Of Digital Transmission (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4354976A JPS52127003A (en) | 1976-04-19 | 1976-04-19 | Communication control device for switching lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4354976A JPS52127003A (en) | 1976-04-19 | 1976-04-19 | Communication control device for switching lines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS52127003A JPS52127003A (en) | 1977-10-25 |
| JPS5528633B2 true JPS5528633B2 (en) | 1980-07-29 |
Family
ID=12666827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4354976A Granted JPS52127003A (en) | 1976-04-19 | 1976-04-19 | Communication control device for switching lines |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS52127003A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55120255A (en) * | 1979-03-08 | 1980-09-16 | Nec Corp | Communication controller |
| JPS58173958U (en) * | 1983-04-07 | 1983-11-21 | 株式会社田村電機製作所 | Malfunction alert public telephone |
| JPS5984956U (en) * | 1983-09-24 | 1984-06-08 | 株式会社田村電機製作所 | Public telephone failure monitoring device |
-
1976
- 1976-04-19 JP JP4354976A patent/JPS52127003A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS52127003A (en) | 1977-10-25 |