JPH02137142U - - Google Patents
Info
- Publication number
- JPH02137142U JPH02137142U JP4561389U JP4561389U JPH02137142U JP H02137142 U JPH02137142 U JP H02137142U JP 4561389 U JP4561389 U JP 4561389U JP 4561389 U JP4561389 U JP 4561389U JP H02137142 U JPH02137142 U JP H02137142U
- Authority
- JP
- Japan
- Prior art keywords
- party
- communication line
- control devices
- transmission
- level
- 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
- 230000005540 biological transmission Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Information Transfer Systems (AREA)
- Bidirectional Digital Transmission (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4561389U JPH02137142U (zh) | 1989-04-20 | 1989-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4561389U JPH02137142U (zh) | 1989-04-20 | 1989-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02137142U true JPH02137142U (zh) | 1990-11-15 |
Family
ID=31559951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4561389U Pending JPH02137142U (zh) | 1989-04-20 | 1989-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02137142U (zh) |
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1989
- 1989-04-20 JP JP4561389U patent/JPH02137142U/ja active Pending