在如今的工业自动化和通信领域，RS232、RS485与RJ45等接口以及MODBUS协议，虽然看似平常，却常常让新人感到困惑。在这篇文章中，我们将深入探讨 ...

After a bit of head-scratching he thought about repurposing the four unused wires on one of the RJ45 Ethernet connectors ... holes we love the serial port used on this Dockstar.

It sports a full-function USB-C port, USB4, HDMI 2.1, and an RJ45 network port ... allowing you to customize it to your needs. An RS232 port is available for $14, a single-port KVM for $48 ...

Serial (RS232), (1) Ethernet (RJ45), (1) HDMI, and (1) USB-C ports. A convenient front release latch allows for easy undocking of the computer, while a keyed lock provides security. The floating ...