1、Built-in antenna, support for ModbusTCP 2、RS485 to WiFi serial server, support for AP and STA function 3、Support desktop, paste, wall-mounted and bundled installation 4、The product can support multiple data encryption methods to ensure data confidentiality 5、Support registry package and heartbeat packet Item Type: RS485 to WIFI Serial Server Model Name: HF7221 Function Explanation: Serial port to WiFi Processing Unit: for Cortex-M4 SOC Main Frequency: 160MHz Operating System: Mbeb FLASH Resources: 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 Protocols: 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 Certification: PSK, AES-CCMP Wireless Transmit Power: 802.11b: +20 DBm (maximal) 802.11g: +18 DBm (maximal) 802.11n: +15 dBm (maximal) 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: Maximal, 8STA WiFi Mode: AP, AP + STA, STA Serial Interface Parameters: Number of Serial Ports: 1 Interface Standard: RS485 Baud Rate: 600-460800bps Serial Port Protection: Yes Product Features: Configuration Method: SmartLink V7, X APP, Airkiss configuration, WEB page, CLI command, XML file import, Telnet configuration, IOTService software WEB Page: Standard web page or custom web page IP Acquisition Method: DHCP or static IP, AutolP Virtual Data Channel: Support Firmware Upgrade: Webpage, for IOTService software, OTA Registry Package Function: Support Heartbeat Packet Function: Support Custom Script Function: Support Packet Filtering: Support Automatic Serial Framing: Support For ModbusRTU to for Modbus 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) Power Parameters: Interface Form: RJ45 interface Power Protection: Yes Size: Approx. 18 x 26 x 61mm / 0.7 x 1 x 2.4in 1 x Serial Server 1 x Crystal Head Turn Button + 4PIN Terminal Wire 1 x Fixed Bracket 1 x Rail Bracket 2 x Screw