Feature: 1. External antenna, support for ModbusTCP 2. RS485 to WiFi serial server, support for AP and STA function 3. The product can support multiple data encryption methods to ensure data confidentiality 4. Support registry package and heartbeat packet 5. Support desktop, paste, wall-mounted and bundled installation Specification: Item Type: RS485 to WiFi Serial Server Model Name: HF7211-0 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: External 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 Function: 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: Input Voltage: 5-36VDC Interface Form: RJ45 interface Power Protection: Yes. Package List: 1 x Serial Server 1 x GPRS Antenna1 x Crystal Head Turn Button + 4PIN Terminal Wire 1 x Fixed Bracket 1 x Rail Bracket 2 x Screw