1. Standard set-up for easy operation：
* Used as a plug-in communication expansion card in the VFD
* Provides standard RS485 interfaces for direct connection to serial devices for data acquisition.
* Intelligent data terminal, able to enter the data transmission state once upon power-on.
* With powerful center management software, it facilitates device management (optional).
* Easy system configuration and maintenance interface.
2. Powerful functions
* Provides standard TTL interface, supporting local software upgrades.
* Supports OTA remote wireless upgrade and remote policy configuration.
* Supports device cloud management platform, facilitating remote management for users and ensuring comprehensive device intelligence.
* Embedded standard TCP/IP protocol stack, supporting multiple transmission protocols.
* Supports APN.
* Able to directly connect to serial devices, supporting up to 40 groups of Modbus register collection for terminal devices.
* Modbus query address and collection cycle can be configured, with a variable upload mechanism to achieve the data upload traffic saving mechanism.
* Supports SIM cards (optional).
* Supports base station positioning/GNSS positioning to obtain device positions accurately (optional).
* Supports button battery for internal clock power loss timing (optional).
* Supports SD card for recording collected data (optional).
* Supports LCD display for displaying collected data and status (optional).
