ZHIYUAN ZWG-21A GPRS Wireless Data Transfer Device Quick Start Guide

About this manual

The guide provides a brief overview of the ZWG-21A GPRS wireless data transfer device and lists the required items for a quick test, including antenna, SIM card, power and communication cables, and a computer with serial software. It also points to the full user manual for detailed information.

Step‑by‑step instructions cover checking the antenna, installing the SIM card, connecting power and communication cables, installing the USB driver, running serial software, resetting to factory defaults, observing status LEDs, transmitting data, and using the configuration tool to adjust DTU parameters. This manual is written in Chinese.

What's inside

• Objective
• Quick Use Steps
• Antenna Check
• SIM Card Installation
• Power Cable Installation
• Communication Cable Connection
• USB Driver Installation
• Data Transmission
• Configuration Tool
• Disclaimer

Specifications

Frequently asked questions

What are the serial communication parameters for the device?

Set the communication port to 19200 or 57600 baud, 8 data bits, 1 stop bit, no parity, and no flow control.