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Re: PIC18F4520接RS485
#2
資深會員
資深會員


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RS485 只有規定電氣特性,沒有規定接頭形式,因此存在各式接頭與接法

如要有好的傳輸與抗干擾效果,傳輸線應使用 120 ohm 特性阻抗的 STP 線 (RS485 用線)

註:常見的網路線是 100 ohm, UTP

發表於: 2010/2/24 15:44
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PIC18F4520接RS485
#1
新會員
新會員


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想請問各位大大~~

如何將RS485與PIC18F4520相作連接~~

如果可以能附個詳細的接線圖嗎 謝謝

還有一個問題想請問~~

RS485的接頭有幾種!?

因為我網路上找個接頭有好多款式~~

能有圖片能夠煩請提供嗎

發表於: 2010/2/24 13:00
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