Support DHCP, automatically obtain an IP address and query IP address through serial setting protocol
Support DNS function
Set parameters through webpage and serial AT command
Upgrade firmware via network
Auto-MDI/MDIX, RJ45 port with 10/100Mbps
Serial port baud rate from 600 bps to 460.8 Kbps, Check bit of None,Odd,Even,Mark and Space
Work mode: TCP Server, TCP Client, UDP Client, UDP Server, HTTPD Client
Support virtual serial port and provide corresponding software USR-VCOM
Heartbeat package mechanism to ensure connection is reliable, put an end to dead link
User-defined registration package mechanism, check connection status and use as custom packet header
Under TCP Server mode, Client number ranges from 1 to 16; default number is 4
The global unique MAC address bought from IEEE, user can define MAC address
Restore factory default
Across the gateway, switches, routers
Can work in LAN, also can work in the Internet (external network)
Provide PC TCP/IP socket programming example such as VB,C++,Delphi,Android and IOS

Character:

System Information
Processor	ARM
Ethernet
Port Number	1
Interface Standard	RJ45
Rate	10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection
Protection	2KV electromagnetism isolation, shell insulation blocking
Network Protocol	IP, TCP, UDP, DHCP, DNS, HTTP, ARP, ICMP
Buffer	Send: 6K bytes, receive: 4K bytes
Serial
Port Number	1
Interface Standard	RS-232: DB9 cellular type
Data Bits	5, 6, 7, 8
Stop Bit	1, 2
Check Bit	None, Even, Odd, Space, Mark
Baud Rate	600 bps ~ 230.4 Kbps
Flow Control	Null
Buffer	Receive: 800 bytes
Software
Virtual Serial(USR-VCOM)	Windows 2000 or higher (32 bit/64 bit)
Configuration	Computer set-up software, serial command, built-in webpage
Basic Parameter
Size	71 x 60 x 25 mm
Operating Temp.	-25 ~ 75°C
Storage Temp.	-40 ~ 105°C, 5 ~ 95% RH
Input Voltage	DC 4.75 ~ 7V
Working Current	150mA @ 5V
Power	<1W
More
Warranty	2 years
Accessory	5V1A power supply
Certificate	CE/FCC

[USR-TCP232-302] RS-232 Serial to TCP/IP module Ethernet converter with DHCP/Web