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Home / Products / Discontinued Items / USR-WIFI232-630
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Introduction of RS232 / RS485 Serial Wireless Servers

USR-WIFI232-630 wifi serial server is a wireless networking server, which is used for project of RS232/RS485 serial equipment to WIFI or Ethernet networking. and It has 2 channel RJ45 port.


Features of RS232 / RS485 Serial Wireless Servers

httpsd Client: serial data submitted to server by https (GET/POST)

Websocket: support bidirectional transparent transmission between built-in webpage and serial

DNS/DHCP: support dynamically to acquire domain and IP

Username/Password Verification

Modbus: support mutual conversion between Modbus TCP and Modbus RTU

TCPB Function: support 2 network links and send data to 2 targets

Customized MAC: users can define the MAC address by themselves

Built-in Webpage

Firmware Upgrade through Webpage

ID Registration: send ID package when TCP establishes connection,or each data automatically increases ID packet header

Virtual Serial Software (USR-VCOM) automatically connect devices

Baud Rate Sync: network protocol dynamically sets serial parameter

485 Protection: overcurrent protection, lightning protection, anti-static

Power Protection: reverse connection protection, anti-static, anti-surge

ESD Protection: pass the test of 8KV contact discharge


Application Field of RS232 / RS485 Serial Wireless Servers

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

Structure of RS232 / RS485 Serial Wireless Servers

Structure of RS232 / RS485 Serial Wireless Servers


Application of RS232 / RS485 Serial Wireless Servers

1.630 Works as AP (equal to WIFI)

2.630 Works as STA (connect to wireless router)

Application of RS232 / RS485 Serial Wireless Servers


3.630 Used to Extend Serial

Modbus RTU to WiFi Converter, USR-WIFI232-630 which Used to Extend Serial


4.Virtual Serial Software (USR-VCOM) Application

Modbus RTU to WiFi Converter, Virtual Serial Software (USR-VCOM) Application


5.Daisy-chained Connection – Double Ethernet Application

Modbus RTU to WiFi Converter, Daisy-chained Connection – Double Ethernet Application


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
Open your browser and inter the default IP address of the Wireless Device Servers.
Open the login page of Serial Server, Enter the user name and password (default admin).
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 2 (with exchange function)
Interface Standard 8 pin RJ45(2 Ethernet: LAN/WAN optional)
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, lightning protection, overcurrent protection, antistatic 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 103 x 105 x 28 mm
Operating Temp. -40 ~ 85°C
Storage Temp. -40 ~ 125°C, 5 ~ 95% RH (no condensation)
Input Voltage DC 5 ~ 40 V
Working Current 170 ~ 350 mA @ 5V
Power AP: 170mA @ 5V, STA: 170mA @ 5V, EPHY(1): 210mA @ 5V, EPHY(2): 250mA @ 5V
AP: 60mA @ 12V, STA: 60mA @ 12V, EPHY(1): 80mA @ 12V, EPHY(2): 100mA @ 12V
Certificate TELEC, IC
Warranty 2 years
Accessory 5V1A power supply, serial line, cable, 3dbi antenna


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