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Home / Products / Discontinued Items / USR-WIFI232-602-V2
Home / Products/ Discontinued Items / USR-WIFI232-602-V2
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Introduction of RS232 WiFi Server

USR-WIFI232-602-V2 is a serial wifi converter, used for data transparent transmission. It can connect with serial device for data transmission. And it can send data from rs232 to WIFI in TCP client,TCP server,UDP client and UDP server mode.


Features of RS232 WiFi Server

Support 802.11b/g/n wireless standard

Support TCP/IP/UDP network protocol

Support RS232 interface with RTS/CTS flow control

Support work as STA/AP/AP+STA mode

Support router and bridge mode

External antenna

Support transparent transmission mode

Provide AT+ instruction set for configuration

Provide friendly web configuration page

Support heartbeat signal and wifi connection indication

Support UART auto-frame function

Max transmission distance: 280 meters (open horizon, 3dbi antenna)

Support DC adapter and terminal power supply

Work mode: TCP Server, TCP Client, UDP Client, UDP Server

Indicator light: Power, Ready, Link, TXD, RXD

Serial port baud rate from 300 bps to 460800 bps

Set parameters through webpage

Reload key to restore factory settings


Application field of RS232 WiFi Server

WiFi remote control and monitoring, TCP/IP and WiFi coprocessor

WiFi remote control toy such as aircraft and cars

WiFi Internet radio, camera, digital photo frame

Medical instrument, data acquisition, handheld device

WiFi fatness testing machine, smart card terminal, Smart Home

Instrument, equipment parameter monitoring, wireless POS machine

Modern agriculture, military field and other wireless related secondary development applications


Networking mode of RS232 WiFi Server

1.AP Mode

ap mode, Networking mode of RS232 WiFi Server


2.STA Mode
sta mode,Networking mode of RS232 WiFi Server


3.AP+STA Mode

4.One AP and one STA Mode

System Information
Processor MIPS solution (32bit 580MHz)
RAM / Flash 8M / 2M
Network Parameter
Network Protocol IP, TCP, UDP, DHCP, DNS, https, ARP, ICMP, Web socket, httpsd client
Receive Buffer 64K byte
Max. Client Number in TCP Server Mode 32
Standard 802.11 b/g/n
Network Mode AP / Station / AP+Station
STA Number in AP Mode 32
Frequency Range 2.412 GHz ~ 2.484 GHz
Transmit Power 802.11b: +20 dBm (Max)
802.11g: +18 dBm (Max)
802.11n: +15 dBm (Max)
Receive Sensitivity 802.11b: -89dbm
802.11g: -81dbm
802.11n: -71dbm
Transmission Rate 802.11b: 11 Mbps
802.11g: 54 Mbps
802.11n: 54 Mbps
Transmission Range Max 280m (open horizon, 3dbi antenna)
Wireless Network Security WEP: 64-bit/128-bit data encryption
WPA, WPA2, 802.11i: advanced mode and PSK mode
Encryption: 128-bit TKIP, AES, TKIP/AES
Antenna Interface SMA
Port Number 1
Interface Standard RS-232: DB9 pin type
Data Bits 5, 6, 7, 8
Stop Bit 1, 2
Check Bit None, Even, Odd
Baud Rate 300 bps ~ 460800 bps
Flow Control RTS / CTS
Buffer Send and receive 4K bytes respectively
Virtual Serial(USR-VCOM) Windows 2000 or higher(32 bit/64 bit)
Configuration Built-in webpage, computer set-up software, serial AT command
Basic Parameter
Size 84 x 84 x 25 mm
Operating Temp. -40 ~ 85°C
Storage Temp. -40 ~ 125°C, 5 ~ 95% RH (no condensation)
Input Voltage DC 5V
Working Current 170 ~ 350 mA @ 5V
Power AP: 185mA @ 5V
STA: 175mA @ 5V
Warranty 2 years
Accessory 5V1A power supply, serial cable, 3dbi antenna


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