JPS57104338A - Simulated transmission line - Google Patents
Simulated transmission lineInfo
- Publication number
- JPS57104338A JPS57104338A JP18104480A JP18104480A JPS57104338A JP S57104338 A JPS57104338 A JP S57104338A JP 18104480 A JP18104480 A JP 18104480A JP 18104480 A JP18104480 A JP 18104480A JP S57104338 A JPS57104338 A JP S57104338A
- Authority
- JP
- Japan
- Prior art keywords
- simulated transmission
- transmission line
- relay switch
- instruction
- cpu107
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/40—Artificial lines; Networks simulating a line of certain length
Abstract
PURPOSE:To increase the efficiency of space and operability of test, by providing a plurality of simulated transmission lines corresponding to various cable lengths. CONSTITUTION:When a selection control instruction of a simulated transmission line 105 is outputted from a CPU107 to an IO bus 200, this is received at an interface section 106 and a selection instruction to a relay switch 104 is outputted, for the operation of the relay switch 104. Thus, a simulated transmission system from a selected simulation transmitting circuit 105, an input connector 101, a buffer amplifier 103 to an output connector 102, is constituted for the coupling between a relay device (not shown) and the simulated transmission system. According to the instruction from a CPU107 at this state, various tests are made and the relay switch 104 is switched as required, allowing to switch the simulated transmission line 105.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18104480A JPS57104338A (en) | 1980-12-20 | 1980-12-20 | Simulated transmission line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18104480A JPS57104338A (en) | 1980-12-20 | 1980-12-20 | Simulated transmission line |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57104338A true JPS57104338A (en) | 1982-06-29 |
Family
ID=16093775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18104480A Pending JPS57104338A (en) | 1980-12-20 | 1980-12-20 | Simulated transmission line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57104338A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2272811A (en) * | 1992-04-13 | 1994-05-25 | Faraday Tech Ltd | Electrical network for emulating a transmission line |
-
1980
- 1980-12-20 JP JP18104480A patent/JPS57104338A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2272811A (en) * | 1992-04-13 | 1994-05-25 | Faraday Tech Ltd | Electrical network for emulating a transmission line |
GB2272811B (en) * | 1992-04-13 | 1995-11-22 | Faraday Tech Ltd | Emulating co-axial transmission cable |
US5576756A (en) * | 1992-04-13 | 1996-11-19 | Faraday Technology Limited | Electrical networks for emulating the response or co-axial transmission cable to serial digital video signals |
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