HF Elfin-EG10, Руководство пользователя

Страница: 30 / 51

4G_2G DTU Products Function
http://www.iotworkshop.com - 30 -
2. AT INSTRUCTION INTRODUCTION
2.1. Working Mode
After the product is powered on, it enters the default mode, that is, the transparent
transmission mode. The user can switch the working mode to the AT command line mode
through the serial port specific data. The default UART port parameters of the module are
configured as follows:
Figure 29. Default UART Parameters
In the command line mode, the user can use the UART port to set the module through the
AT command.
<Notes>: The AT command debugging tool recommends using the SecureCRT software tool
(other serial tools are also available, but not convenient for SecureCRT). The following
instructions use the SecureCRT tool.
2.1.1. Switching to Command Mode
Switching from transparent mode to command mode is divided into 2 steps:
➢
Enter
“
+++
”
on the serial port, and the module will return a confirmation code
“
a
”
after receiving
“
+++
”
;