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Home / Products / Discontinued Items / USR-WIFI232-604-V2
Home / Products/ Discontinued Items / USR-WIFI232-604-V2
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Introduction of RS485 Wifi Converter

[RS485 WIFI Converter] USR-WIFI232-604-V2 is used to transmit data between RS485 and WIFI TCPIP transparently. User can setup the work detail by simple settings which can setup via built-in webpages or RS485 port. The setup only needs do once, then it will save the setting forever.


Features of RS485 Wifi Converter

IEEE802.11b/g/n wireless standards
TCP/IP/UDP network protocols
RS485 data interface
Can work as STA/AP/AP+STA mode
Support router/bridge mode networking
3dbi external antenna
Support transparent transmission mode
AT+ Command for configuration
Support friendly web configuration page
Support palmodic signal
Single 5-9V power supply
Small Size: 84 x 84x25mm
FCC/CE/RoHS/TELEC certificated

Function comparison of RS485  Wifi Converter


Model USR-WIFI232-630 USR-WIFI232-610 USR-WIFI232-602 USR-WIFI232-604
Serial RS232/485 RS232/485 RS232 RS485
Ethernet Port 2 1 0 0

485 protection:

overcurrent protection,

lighting protection, anti-static

Power protection:

reverse connection protection,

anti-static, anti-surge

485 protection:


overvoltage protection


485 protection:


overvoltage protection

Flow Control



Input Voltage 5-40V 5-18V 5-9V 5-9V

Application field of RS485 Wifi Converter

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

Application of RS485  Wifi Converter

1.Application of AP

Application of RS485  Wifi Converter, WIFI Server as AP


2.Application of STA

Application of STA, RS485 WiFi Converter, wifi server as sta


3.Application of AP+STA

Application of AP+STA, RS485 WiFi Converter


4.Application of one AP and one STA

Application of one AP and one STA


Simple Transparent transmission

Transparent transmission means that whatever is transferred, our device plays the role of a channel and sends data to the target without modification. On-site monitoring equipment sends data to Wireless Device Servers transparent data transmission terminal by itself port, the terminal CUP receives data by serial port and package data.

System Information
Processor MIPS solution (32bit 360MHz)
RAM / Flash 8M / 1M
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 400m (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-485: 2 wire( A+, B-, GND)
Data Bits 5, 6, 7, 8
Stop Bit 1, 2
Check Bit None, Even, Odd, Space, Mark
Baud Rate 300 bps ~ 460800 bps
Buffer Send and receive 4K bytes respectively
Protection RS-485: surge protection, overvoltage protection
RS-485 Pull-up and Pull-down Resistor 2.2 KΩ
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 5 ~ 9 V
Working Current 170 ~ 350 mA @ 5V
Power AP: 185mA @ 5V
STA: 175mA @ 5V
Certificate CE, FCC, ROHS, TELEC
Warranty 2 years
Accessory 5V1A power supply, 3dbi antenna


title update date operation

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