This document provides a comprehensive guide to the AT commands supported by the USR CAT-1 series modules, using the WH-GM5 model as an example. It explains the syntax for both command and response formats, including required and optional parameters. This manual is written in Chinese.
What's inside
Document Introduction
Command Format
Response Format
General Commands
Information Queries
Security Mechanisms
Serial Port Parameters
Connection Parameters
Socket Backup
Heartbeat and HTTPD
Frequently asked questions
What happens if the module detects no SIM card for one minute?
The module will restart.
Under what condition does the module reset automatically due to a timeout?
