資料來源:https://www.sparkfun.com/products/10124
This is a breakout board for the SP3485 RS-485 transceiver IC, which will convert a UART serial stream to RS-485. The SP3485 is a half-duplex transceiver, so it can only communicate one way at a time, but it can reach transmission speeds of up to 10Mbps. This board requires a very low amount of power and can operate from a single +3.3VDC supply.
This breakout board includes the SP3485 RS-485 transceiver, filter capacitor, and other components shown on the schematic. We’ve broken out the RS-485 output to three different connections: (1) an RJ-45 connector, (2) a 3-pin 3.55mm screw terminal, and (3) a 3-pin 0.1" pitch header; none of these output connectors come populated.
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這是SP3485 RS-485收發器IC突破板,這將轉換為UART串行數據流,以RS-485。的SP3485是一個半雙工收發器,因此,它只能在一個時間進行通信的一種方法,但它可以達到高達10Mbps的傳輸速度。該板需要的功率非常低的量,可以從一個單一的+ 3.3VDC供電。
該接口板包括SP3485 RS-485收發器,濾波電容,並且在原理圖中顯示其他組件。我們已經打破了RS-485輸出到三種不同的連接方式:(1) RJ-45接口 ,(2) 3針3.55毫米螺絲端子 ,以及(3)3針0.1“間距頭;無這些輸出接口來填充。
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尺寸:0.9x1.0“
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