HF2221A

  • Product Code: HF2221A
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Overview of Characteristic

  • MIPS MCU with 4MB Flash and 8MB SRAM. Run on eCos
  • Support TCP/IP/Telnet /Modbus TCP Protocol
  • Support 2 channel RS232/RS422/RS485 to Ethernet/Wi-Fi Conversion, Serial Speed Upto 230400 bps
  • Support STA/AP/AP+STA Mode
  • Support Router or Bridge Network Working Mode.
  • Support 10/100M Ethernet Auto-Negotiation
  • Support Easy Configuration Through a Web Interface or PC IOTService Tool
  • Support Security Protocol Such As TLS/AES/DES3
  • Support  Web OTA Wirelss Upgrade 
  • Wide DC Input 5~36VDC
  • Size: 108 x 146 x 25 mm (L x W x H)


2 Serial Port HF2221A Achieve RS232/RS485/RS422 to WIFI/Ethernet two-way transparent transmission

WIFI Serial Server







Processor MIPS
Basic Frequency 320MHz
Flash 4MB
SDRAM 8MB
Operating System eCos
Ethernet
Interface Standard 2 RJ45
Rate 10/100 Base-T Auto-Negotiation
Protection 8KV Isolation
Network Protocol IP，TCP，UDP，DHCP，DNS，HTTP Server/Client，ARP，BOOTP，AutoIP， ICMP，Web socket，Telnet，FTP，TFTP，uPNP，NTP，SNMP，Modbus TCP
Security Protocol TLS v1.2 AES 128Bit DES3
WIFI
Standard 802.11 b/g/n
Network Mode STA/AP/STA+AP
Access Terminal Quantity in AP Mode 最多32个终端
Transmit Power 802.11b: +20dBm(Max.) 802.11g: +18dBm(Max.) 802.11n: +15dBm(Max.)
Receive Sensitivity 802.11b: -89dBm 802.11g: -81dBm 802.11n: -71dBm
Wi-Fi Security WEP/WPAPSK/WPA2PSK
Antenna Interface External：3dBi antenna
Port Number 2(RS232/RS485/RS422)
Interface Standard RS232: DB9 RS485/RS422: 5.08mm connector
Data Bits 8
Stop Bit 1，2
Check Bit None，Even，Odd
Baud Rate TTL: 300 bps~230400bps
Flow Control No Flow control Hardware RTS/CTS、DSR/DTR Software Xon/ Xoff flow control
Buffer 4K
Configuration Web,CLI,XML import,Telnet,IOTManagerPC Software
Virtual Serial Windows, XP/Vista, 7， Server 2003/2008
Size 108mmx 146mm x 25mm
Operating Temp. -45 ~ 85°C
Storage Temp. -45 ~ 105°C，5 ~ 95% RH（No Condensation）
Input Voltage 5～36VDC
Working Current ~200mA
Power <700mW
Warranty 1 years
Accessory 1* Power Adapter 1* Serial Cable 1* Ethernet Cable 1* WiFi Antenna
User Guide
IOT_Device_Series_Software_Funtion_20250328 [ Download Times: 55294,  Date Update: 2025-09-18 14:41:10 ]
HF2221A User ManualV1.0(20230425) [ Download Times: 257,  Date Update: 2023-05-10 14:37:38 ]
PW2XA_HF2211A_HF2221A_HF9610A Operation Guide 20210817 [ Download Times: 367,  Date Update: 2023-05-10 14:42:13 ]