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參數(shù)資料
| 型號： | RS-485 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | RS-422 AND RS-485 APPLICATION NOTE |
| 中文描述： | RS - 422和RS - 485接口應用筆記 |
| 文件頁數(shù)： | 24/44頁 |
| 文件大小： | 628K |
| 代理商： | RS-485 |
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RS-422/485 Application Note
21
B&B Electronics -- PO Box 1040 -- Ottawa, IL 61350
PH (815) 433-5100 -- FAX (815) 434-7094
Losses in a transmission line are a combination of AC losses (skin
effect), DC conductor loss, leakage, and AC losses in the dielectric. In high
quality cable, the conductor losses and the dielectric losses are on the same
order of magnitude. Figure 3.2 is included in this application note to point
out the significant difference in performance of different cables. This chart
shows Attenuation versus Frequency for three different Belden cables. Note
that the polyethylene cables offer much lower attenuation than PVC cables.
Figure 3.1
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| RS485-232 | 制造商:PR 功能描述: |
| RS485-C1(AS) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RS232/RS485 CONV (AS) |
| RS485-C1(EU) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (EU) |
| RS485-C1(UK) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (UK) |
| RS485-C1(US) | 制造商:Equinox Technologies 功能描述:RS232/RS485 CONV (US) |
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