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Serial WiFi Adapter - RS485, Industrial

  • Model: WF485
  • In Stock


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The WF485 is an industrial grade RS485 to Wi-Fi (802.11b/g/n) converter with several advanced functions, including Modbus support two network sockets and a reliable MIPS processor (32bit 580MHz). It will allow you to connect any standard RS485 serial device to a computer over Wi-Fi and is an ideal solution for most industrial and commercial environments for factory automation, machine control, device management and many other applications.

This converter can be setup as a STA device for connecting to an ad-hoc network or as an AP device for connecting to an infrastructure network, this makes it easy to connect it existing wireless network. It supports both open and secure network protocols OPEN, SHAREDWEP, WPA-PSK and WPA2-PSK.

Besides the basic functions such as the standard serial port parameters and network settings this converter has the following additional main features:

Modbus TCP/RTU Support

A nice feature, usually not seen in this price range, is that this converter has Modbus TCP/RTU support. Modbus support can easily be enabled or disabled by logging into the converters administration panel.

Two Network Sockets

Another useful feature is that this RS485 Wi-Fi converter has two network sockets. This means that data received from the serial port can be sent to two individual computers wireless; and that both computers also can send data to the serial port individually using a TCP or UDP port.

HTTPD-Client Mode

Communication directly with a HTTP server is possible with the WF485. In HTTPD Client Mode the user can send and read data from a HTTP server. The converter will automatically add the HTTP header to the data from the serial port.

Other functions

Of other functions we can mention: UART AutoFrame, Registred Package communication, RFC2217 support with included virtual COM port software, KeepAlive, Device Identification, automatic send data control.

The converters parameters can be configured over Wi-Fi by using a standard web-browser or through the serial port by using the downloadable configuration utility or by AT commands.

With the converter is included a 3dBi antenna.

serial wifi setup

Overall features
  • Industrial grade serial RS485 to Wi-Fi converter
  • Modbus TCP/RTU Support
  • Parameters configurable over Wi-Fi or serial port
  • Voltage: 5VDC
  • Supports AP and STA network modes
  • Works with most mobile devices / operating systems
  • LED control lights for Power, Ready, Link, TX, RX
  • Antenna included

Useful optional accessories
(not included)

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

5V power supply
5V Power supply
Part number WF485
Operating system Virtual COM software available for Windows 11, 10, 8.1 / 8, 7, Vista (32/64-bit)
Processor MIPS processor (32bit 580MHz), RAM: 8MB, Flash: 2MB
Parameter configuration Web-browser (over WiFi), by AT commands or by software utility
Network standard IEEE 802.11 b/g/n
Frequency 2.400–2.484GHz
Protocols TCP, UDP, ARP, ICMP, DHCP, HTTP, HTTPD Client, Modbus TCP/RTU
Network type STA (for ad-hoc) and AP (for infrastructure)
Max. simultaneous clients 32 Clients in TCP Server mode. All 32 can be served at the same time
Modulation DSSS / OFDM
Operating distance Up to 330 feet (100 meters)
Serial Port
RS485 Signals D+, D-, GND
Serial port 1-port RS485 screw terminals
Multidrop support No
Baud rates 300 - 460800bps
Data bits 5, 6, 7, 8
Parity None, Odd, Even, Mark, Space
Stop bits 1, 2
Buffer TX: 4Kb
RX: 4Kb
Flow control Internal Send Data Control
Power supply 5VDC (+/-5%), barrel plug and screw terminals
Power consumption 170 - 350 mA @ 5V
Antenna 2.4Ghz, 3dbi di-pole antenna, SMA male (inside threads / center pin)
Antenna connector (on converter) SMA female (outside threads / center receptacle)
Transmit power 802.11b: +17dBm(Max.)
802.11g: +16dBm(Max.)
802.11n: +15dBm(Max.)
Receiver Sensitivity 802.11b: -89dBm
802.11g: -76dBm
802.11n: -74dBm
Operating temp. -13°F to 185°F (-25°C to 85°C)
Enclosure Aluminium with screw mounting holes
Dimensions 84 x 84 x 25mm
Certifications CE, FCC, ROHS

For alternative RS232 wireless solutions please see our full selection of wireless serial converters.


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