The EW11A unit is a complete solution for connecting serial port devices to a network. This device supports an embedded web server, a full TCP/IP protocol stack, and standards-based encryption. It enables data transfer via Wi-Fi for simple and reliable communication. Key Features: - Supports 802.11b/g/n wireless standard - Supports TCP, UDP, Telnet, and Modbus protocols - Converts RS485 to Ethernet/Wi-Fi - Serial communication speed up to 460800 bps - Supports STA, AP, and AP+STA operating modes - Compatible with Smart Configuration (via mobile app) - Easy configuration through web interface or PC-based IoT Service Tool - Supports security protocols including SSL/TLS and 3DES - Web-based OTA (Over-The-Air) wireless firmware upgrade - Built-in PCB antenna - Wide DC input range: 5–18 VDC - Color: As shown - Material: Plastic - Dimensions: 61 × 26 × 17.8 mm (L × W × H) Package Includes: 1 × Wireless module kit Note: The actual product color may vary slightly due to screen settings and lighting conditions. Dimensional tolerance: ±1–3 cm.