Feature: 1. This product supports Wi‑Fi, and supports a complete TCP/IP protocol, very convenient 2. Serial server support multiple data encryption methods to ensure data confidentiality 3. Data transmission through the wireless connection of this serial server, making product integration very easy 4. RS232 to WiFi server support custom registration package and heartbeat package 5. Built-in WiFi antenna, support for Ali IOT.MQTT, realize remote configuration parameters Specification: Item Type: RS232 to WiFi Server Core Parameters: Model Name: HF7211 Function Explanation: Serial port to WiFi Processor: For Cortex-M4 SOC Main Frequency: 160MHz Operating System: For mbeb FLASH Resource: 2MB RAM: 384KB Network Interface Parameters: Wireless Standard: 802.11b/g/n Antenna Form: Built-in antenna WiFi Frequency Band: 2.412GHz-2.484GHz Network Protocol: IP, TCP, UDP, DHCP, DNS, HTTPServer/Client, APP, BOOTP, AutolP, ICMP, Telnet, uPNP WiFi Security (encryption method): Encryption: AES 128Bit, 3DES, SHA-1, MD5, Base-64, RSA Authentication: PSK, AES-CCMP Wireless Transmit Power: 802.11b: +20 DBm (maximum) 802.11g: +18 DBm (maximum) 802.11n: +15 dBm (maximum) Wireless Receiving Sensitivity: 802.11b: -89dBm(at 11 Mbps, CCK) 802.11g: -81dBm(at 54Mbps, OFDM) 802.11n: -71 dBm(at HT20, MCS7) Maximum Number of Connections: Maximum 8STA WiFi Mode: AP, AP+STA, STA Serial Port Interface Parameters: Number of Serial Ports: 1 Interface Standard: RS232 Baud Rate: 600-460800bps Serial Port Protection: Yes Product Features: Configuration Method: For SmartLink V7 / X APP / Airkiss configuration, WEB page, Cli command, XML file import, Telnet configuration, for IOTService software WEB Webpage: Standard webpage or custom webpage IP Acquisition Method: DHCP or static IP, AutolP Virtual Data Channel: Support Firmware Upgrade: Webpage, for IOTService software, OTA Registration Package Function: Support Heartbeat Package Function: Support Custom Script Function: Support Packet Filtering: Support Serial Port Automatic Framing: Support RTU to TCP: Support NTP Function + Time Zone Setting: Support Parameter Import and Export: Support Reload Reset Interface: Yes Environmental Parameters: Working Temperature: -40-85℃ Storage Environment: -50-90℃, 5-95%RH (non-condensing water) Power Parameters: Input Voltage: 5-36VDC Interface Form: RJ45 interface Power Protection: YesSize: Approx. 61 x 26 x 18mm / 2.4 x 1 x 0.7in. Package List: 1 x Serial Server1 x Crystal Head Turn Button + 4pin Terminal Line1 x Fix Bracket1 x Rail Bracket2 x Screw