JPH0470835B2 - - Google Patents
Info
- Publication number
- JPH0470835B2 JPH0470835B2 JP9192687A JP9192687A JPH0470835B2 JP H0470835 B2 JPH0470835 B2 JP H0470835B2 JP 9192687 A JP9192687 A JP 9192687A JP 9192687 A JP9192687 A JP 9192687A JP H0470835 B2 JPH0470835 B2 JP H0470835B2
- Authority
- JP
- Japan
- Prior art keywords
- power outage
- line
- diode
- call
- loop
- 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
- 239000003990 capacitor Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9192687A JPS63258193A (ja) | 1987-04-16 | 1987-04-16 | ボタン電話装置の停電用電話機回路 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9192687A JPS63258193A (ja) | 1987-04-16 | 1987-04-16 | ボタン電話装置の停電用電話機回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63258193A JPS63258193A (ja) | 1988-10-25 |
JPH0470835B2 true JPH0470835B2 (en]) | 1992-11-12 |
Family
ID=14040190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9192687A Granted JPS63258193A (ja) | 1987-04-16 | 1987-04-16 | ボタン電話装置の停電用電話機回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63258193A (en]) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0292285U (en]) * | 1989-01-09 | 1990-07-23 |
-
1987
- 1987-04-16 JP JP9192687A patent/JPS63258193A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS63258193A (ja) | 1988-10-25 |
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