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Home / Products / Discontinued Items / USR-WIFI232-610-V2
Home / Products/ Discontinued Items / USR-WIFI232-610-V2
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Introduction of Serial WIFI Converter

USR-WIFI232-610-V2 is a wireless serial WIFI converter, which is used for the project of RS232/RS485 serial equipment to WIFI or Ethernet networking. It can be controlled by mobile phone or laptops, also can be connected to the remote server.


Features of Serial WIFI Converter

Hardware flow control (RTS/CTS) RS232 interface, male mouth(needle) consistent with computer pin definition

DC5~18V wide voltage input, can provide 2A current MP1482DS DCDC power supply chip, keep system reliability.

RS232 RS485 automatic switching

RJ45 network connection, support wired Ethernet transmission

Reload button, do not worry incorrect settings (in working status, press the button 3-5s then it load to default settings and automatic restart)

Rich status indicator light: Power Ready Link RXD TXD

Support IEEE802.11b/g/n wireless standards

Support TCP/IP/UDP network protocols

Support RS232 RS384 data interface

Support work as STA/AP/AP+STA mode

Support router/bridge Mode networking

Support external antenna

Support transparent transmission mode

Support AT+ instruction set for configuration

Support friendly web configuration page

Support palmodic signal

Single 5-18V power supply

Small size: 84 x 84x25mm

FCC/CE/RoHS/TELEC certificated


Function comparison of  Serial 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 Serial WIFI Converter

Serial RS232/RS485 to Wifi or Ethernet

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 Serial WIFI converter

1.Application of AP

Application of Serial WIFI converter, WIFI Connection


2.Application of STA

Application of STA, Serial WIFI Converter,

3.Application of AP+STA


4.Wired and Wireless Application

Wired and Wireless Application of Serial WIFI Converter, wifi connection

Wired and Wireless Application, Wired Wireless only for 610-STA


5.Application of one AP and one STA

Serial WIFI Converter, 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.


Various parameter setting method

Software Settings
Download settings software, search Wireless Device Servers in the LAN through the serial port server IP, name, MAC address, or the version number. Then set the parameters you need, otherwise keep the default.
Web-page Settings
1.Open your browser and inter the default IP address of the Wireless Device Servers.
2.Open the login page of Serial Server, Enter the user name and password (default admin).
3.After setting parameter, Click “Save“ and “Restart“, then setting will take effect.

Serial AT commands Settings
User can set parameter by module itself without going through another computer to configure. This setting method is used in the following situation: user have to configure IP address and destination IP address on site. AT command can meet the demand. After MCU connects serial server module by TTL (UART), MCU can configure setting by AT command.

System Information
Processor MIPS solution (32bit 360MHz)
RAM / Flash 8M / 1M
Port Number 1
Interface Standard 8 pin RJ45
Rate 10/100 Mbps, MDI/MDIX, auto switch between cross and direct connection
Protction 2KV electromagnetism isolation, shell insulation blocking
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 2 (1*RS-232, 1*RS-485, can not work at the same time)
Interface Standard RS-232: DB9 pin type, 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
Flow Control RTS / CTS
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 ~ 18 V
Working Current 140 ~ 350 mA @ 5V
Power AP: 140mA @ 5V, STA: 140mA @ 5V, EPHY: 170mA @ 5V
AP: 60mA @ 12V, STA: 60mA @ 12V, EPHY: 70mA @ 12V
Certificate CE, FCC, ROHS, TELEC
Warranty 2 years
Accessory 5V1A power supply, serial line, cable, 3dbi antenna


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