HF2221 Serial Server Device User Manual
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1. PRODUCT OVERVIEW
1.1. General Description
The HF2221 provides RS232/RS485/RS422 interface to Ethernet/Wi-Fi connectivity to web enable
any device. The HF2221 integrate TCP/IP controller, memory, 10/100M Ethernet transceiver, high-
speed serial port and integrates a fully developed TCP/IP network stack and ECos OS.The HF2221
also includes an embedded web server used to remotely configure, monitor, or troubleshoot the
attached device.
The HF2221 using highly integrated hardware and software platform,It has been optimized for all kinds
of applications in the industrial control, smart grid , personal medical application and remote control
that have lower data rates, and transmit or receive data on an infrequent basis.
The HF2221 integrates all serial to Ethernet functionality with 108 x 146 x 25mm size
.
1.2. Device Paremeters
Table 1. HF2221 Technical Specifications
Item
Parameters
System Information
Processor/Frequency MIPS/320MHz
Flash/SDRAM
4MB/8MB
Operating System
eCos
Ethernet Port
Port Number
2 RJ45
1 WAN/LAN switchable
1 LAN
Interface Standard
10/100 Base-T Auto-Negotiation
Protection
8KV Isolation
Transformer
Integrated
Network Protocol
IP, TCP, UDP, DHCP, DNS, HTTP Server/Client, ARP,
BOOTP, AutoIP, ICMP, Web socket, Telnet, uPNP, NTP,
Modbus TCP
Security Protocol
TLS v1.2
AES 128Bit
DES3
Wi-Fi Interface
Standard
802.11 b/g/n
Frequency
2.412GHz-2.484GHz
Network Mode
STA/AP/STA+AP
