JPS63121989U - - Google Patents
Info
- Publication number
- JPS63121989U JPS63121989U JP1144587U JP1144587U JPS63121989U JP S63121989 U JPS63121989 U JP S63121989U JP 1144587 U JP1144587 U JP 1144587U JP 1144587 U JP1144587 U JP 1144587U JP S63121989 U JPS63121989 U JP S63121989U
- Authority
- JP
- Japan
- Prior art keywords
- relay device
- input terminal
- upstream data
- comparator
- protection circuit
- 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.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Sub-Exchange Stations And Push- Button Telephones (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1144587U JPS63121989U (enrdf_load_stackoverflow) | 1987-01-30 | 1987-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1144587U JPS63121989U (enrdf_load_stackoverflow) | 1987-01-30 | 1987-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63121989U true JPS63121989U (enrdf_load_stackoverflow) | 1988-08-08 |
Family
ID=30798670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1144587U Pending JPS63121989U (enrdf_load_stackoverflow) | 1987-01-30 | 1987-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63121989U (enrdf_load_stackoverflow) |
-
1987
- 1987-01-30 JP JP1144587U patent/JPS63121989U/ja active Pending
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