The CH-D1 Wireless DTU is a data‑transmission unit used for transparent wireless communication with serial industrial equipment. This manual helps users quickly understand basic functions, install the device, and integrate it into their systems.
It includes safety warnings, liability statements, contact details, product specifications, AT‑command reference, TCP/UDP communication modes, and a parts list. The guide is intended for engineers and technicians deploying the CH‑D1 series in various applications. This manual is written in Chinese.