JPS647482U - - Google Patents
Info
- Publication number
- JPS647482U JPS647482U JP10003387U JP10003387U JPS647482U JP S647482 U JPS647482 U JP S647482U JP 10003387 U JP10003387 U JP 10003387U JP 10003387 U JP10003387 U JP 10003387U JP S647482 U JPS647482 U JP S647482U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- photocoupler
- office line
- loop
- central office
- 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
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000003990 capacitor Substances 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Sub-Exchange Stations And Push- Button Telephones (AREA)
- Interface Circuits In Exchanges (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10003387U JPS647482U (en]) | 1987-07-01 | 1987-07-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10003387U JPS647482U (en]) | 1987-07-01 | 1987-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS647482U true JPS647482U (en]) | 1989-01-17 |
Family
ID=31327740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10003387U Pending JPS647482U (en]) | 1987-07-01 | 1987-07-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS647482U (en]) |
-
1987
- 1987-07-01 JP JP10003387U patent/JPS647482U/ja active Pending