JPS6313585B2 - - Google Patents
Info
- Publication number
- JPS6313585B2 JPS6313585B2 JP2220780A JP2220780A JPS6313585B2 JP S6313585 B2 JPS6313585 B2 JP S6313585B2 JP 2220780 A JP2220780 A JP 2220780A JP 2220780 A JP2220780 A JP 2220780A JP S6313585 B2 JPS6313585 B2 JP S6313585B2
- Authority
- JP
- Japan
- Prior art keywords
- function
- wire line
- signal
- power supply
- terminal device
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Alarm Systems (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2220780A JPS56119570A (en) | 1980-02-26 | 1980-02-26 | Emergency communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2220780A JPS56119570A (en) | 1980-02-26 | 1980-02-26 | Emergency communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56119570A JPS56119570A (en) | 1981-09-19 |
| JPS6313585B2 true JPS6313585B2 (enExample) | 1988-03-26 |
Family
ID=12076342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2220780A Granted JPS56119570A (en) | 1980-02-26 | 1980-02-26 | Emergency communication system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56119570A (enExample) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58134569A (ja) * | 1982-02-04 | 1983-08-10 | Nippon Telegr & Teleph Corp <Ntt> | 網制御装置の電源供給方式 |
| JPS601966A (ja) * | 1983-06-17 | 1985-01-08 | Nippon Telegr & Teleph Corp <Ntt> | 宅内装置の給電起動停止方式 |
| JPS60106262A (ja) * | 1983-11-15 | 1985-06-11 | Nec Corp | 端末給電方式 |
-
1980
- 1980-02-26 JP JP2220780A patent/JPS56119570A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56119570A (en) | 1981-09-19 |
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