JPH01142257U - - Google Patents
Info
- Publication number
- JPH01142257U JPH01142257U JP3758388U JP3758388U JPH01142257U JP H01142257 U JPH01142257 U JP H01142257U JP 3758388 U JP3758388 U JP 3758388U JP 3758388 U JP3758388 U JP 3758388U JP H01142257 U JPH01142257 U JP H01142257U
- Authority
- JP
- Japan
- Prior art keywords
- ringer
- line
- circuit
- switching signal
- signal
- 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
- 230000001934 delay Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Monitoring And Testing Of Exchanges (AREA)
- Devices For Supply Of Signal Current (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3758388U JPH01142257U (ru) | 1988-03-24 | 1988-03-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3758388U JPH01142257U (ru) | 1988-03-24 | 1988-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01142257U true JPH01142257U (ru) | 1989-09-29 |
Family
ID=31264162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3758388U Pending JPH01142257U (ru) | 1988-03-24 | 1988-03-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01142257U (ru) |
-
1988
- 1988-03-24 JP JP3758388U patent/JPH01142257U/ja active Pending