[K4-8th]Switch RS485 working mode

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【K4-8代】切换RS485工作模式

这款迷你电脑主机,其主板集成了 J485 排针,具备可切换的 RS485 工作模式。该 RS485 工作模式切换功能为系统提供了灵活的通信方式选择,主板上的 J485 排针作为物理接口,能够用于连接外部符合 RS485 标准的设备,以实现诸如工业自动化控制、远程数据采集等基于 RS485 通信协议的应用场景,从而扩展了迷你电脑主机在工业通信或相关领域的适用性。

PS:切换为RS485后,COM2(RS232)将失效。

准备工作:

  • 1组(2根)2.54mm间距杜邦线,长度约30CM;

配置步骤:

  • 步骤1.按SW按钮开机 ,开机后快速敲击键盘Del键进入BIOS Setup,依次选择Advance>IT8786 Super IO Configuration>Serial Port 2 Configuration>将RS485 Mode配置为 [Enabled];
  • 步骤2:断电状态下拆机可看到主板,在主板上找到JC21排针,该排针上有1个跳帽,默认插入pin1和pin2引脚,插入该引脚时COM2为RS232工作模式;
  • 将该跳帽移动到pin2和pin3引脚,切换到该引脚时,可启用主板上RS485工作模式。
  • PS:排针有加粗或三角形的标识为pin1引脚!
  • 步骤3:准备1组(2根)2.54mm间距,长度30CM左右的杜邦线,从机箱锁孔位插入机箱内部,找到主板J485+和J485-排针,将杜邦线红色 端插入RS485+(pin1)引脚,黑色端插入RS485-(pin2)引脚。
  • PS:切换为RS485模式后,机箱上的COM2(RS232)将失效,用户RS485外设产品需要连接到外部的RS485+和RS485-杜邦线上实现通信!

For detailed product information, please contact https://www.hystou.com

作者: minipc

Our company is a reliable manufacturer and exporter of fanless mini computers, industrial computers, all-in-one computers and industrial tablet computers. Our products are exported to the European Union, America, Asia and other places, and enjoy a high reputation in the global market. In order to provide high-quality products and excellent services, our company has obtained reports and certificates approved by CE, FCC, RoHS, SGS, ISO9001, etc. Our goal is "innovation first, quality first, customers first, service first". We are committed to providing quality products, excellent service, competitive prices, fast response and timely delivery. We warmly welcome every customer to visit us and hope that both of us will work together to create a brilliant future. OEM and ODM orders are welcome.

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