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Serial WiFi Adapter - RS232, RS485, RS422 - Industrial

  • Model: WF950


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The WF950 is a solid high performance 1-port serial RS232, RS485, RS422 WiFi adapter (also called a wireless device server), which will allow you to send and receive serial data over a standard WiFi network.
It is designed around the popular Atheros AR2317 processor which offers great reliability and performance including many features and functions rarely seen in this price range.
In Infrastructure mode or Ad-Hoc mode, the WF950 can communicate with any host computer through an access point, or with another WF950 located up to 300 feet (100 meters) away.
Besides all the basic functions here are some of the main highlights:

Automatic Data Buffer Flush

The received data will be queued in the internal buffer until all the delimiters are matched. When the buffer is full (4K Bytes) or after the 'Flush Data Buffer' timeout, the data will also be sent. 'Flush Data Buffer' timeout can be set from 0 to 65535 seconds.

System Event Notifications by SMTP Mail, SNMP Trap or Syslog

With the integrated System Log Configurator you can specify if you want to receive system notifications, at what interval and also how you want to receive these, by email, SNMP Trap Server or TCP Server Logs. The following notifications are available: Hardware Reset (Cold Start), Software Reset (Warm Start), Login Failed, IP Address Changed, Password Changed, Access IP Blocked, Port Connected, Port Disconnected.

Network Delimiter

A maximum of 4 delimiters (00-FF, Hex) can be defined for each direction. The data will be held until the delimiters are received or the Flush Data Buffer times out.

Adjustable Alive Check

The serial device will send TCP alive-check packages in each defined time interval (Alive Check) to the remote host to check the TCP connection. If the TCP connection is not alive, the connection will be closed and the port will be freed.

Adjustable number of connections

You can manually select the number of simultaneous host connections you want to allow to the converter.

IP Filtering

This function will let you specify which IP addresses that can connect to the converter.

Force TX Interval Time

The Force TX interval time function specifies the timeout when no data has been transmitted. When the timeout is reached or the TX buffer is full (4K Bytes), the queued data will be sent.

Idle Timeout

When the serial port stops data transmission for a defined period of time (Idle Timeout), the connection will be closed and the port will be freed and try to connect with other hosts.

Please refer to the Web Configurator for all functions and default settings.

Overall features
  • High performance reliable Atheros AR2317 processor
  • Link any serial device to an IEEE 802.11b/g network
  • Baud rates up to 115200bps
  • Web-based configuration using Ethernet
  • Many advanced functions
  • Secure data access with WEP, WPA, WPA2
  • Virtual COM port software included
  • 110VAC/12VDC power supply included

Useful optional accessories
(not included)

Null modem adapter
Null modem adapter

DB9 to RJ45 adapter
DB9 - RJ45 adapter

DB9 gender changer
Gender Changer

Part number WF950
Processor Atheros / AR2317 40 MHz
SDRAM 16 M bytes , FLASH ROM:4M bytes
TX / RX Data buffer 4KB
Windows Real COM Drivers Windows 10 32/64-bit, 8 32/64-bit, Windows 7 32/64-bit, Windows Vista
Configuration Options Web browser
Network Protocols ICMP , IP , TCP , UDP , DHCP , BootP , ARP / RARP , DNS , SNMP MIB II , HTTPS, SMTP, SNTP
Serial modes Virtual Com, TCP Server, TCP Client, UDP
Special features TCP Alive Check Timeout
Automatic Data Buffer Flush
Adjustable number of connections
IP access filtering
Inactivity Timeout
Delimiter for Data Packing
Force TX Timeout for Data Packing
Auto IP report
System Event Notifications by SMTP Mail, SNMP Trap or Syslog
Standard Compliance IEEE 802.11b/g
Network Modes Infrastructure, Ad-Hoc
Transmit Power 802.11b:Maximum 20 dBm
802.11g:Maximum 18 dBm
Receive Sensitivity -70 dBm @ 54 Mbps , -85 dBm @ 11Mbps
Radio Frequency Type DSSS/OFDM
Transmission Rate 54 Mbps ( max. ) with auto fallback ( 54 , 48 , 36 , 24 , 18 , 12 , 11 , 9 , 6 , 5.5 , 2 , 1 Mbps)
Transmission Distance Up to 100 meters (at 12 Mbps, in open areas)
Wireless Security Infrastructure: None, WEP 64-bit / 128-bit data encryption (Open / Shared), WPA-PSK, WPA2-PSK (TKIP / AES)
Ad-Hoc: None, WEP 64-bit / 128-bit data encryption (Open / Shared)
Max simultaneous host connections Selectable 1 - 5 for Virtual Com / TCP server
LAN INTERFACE ( for configuration / Ethernet hub )
Ethernet 10 / 100 Mbps , RJ45
Protection Built-in 1.5 KV magnetic isolation
Ports 1 x RS-232 / RS422 / RS485 port , male DB9 , S / W selectable
Baudrate 110 bps to 115200bps
Data Bits 5, 6, 7, 8
Stop Bits 1, 1.5, 2
Parity None, Even, Odd, Space, Mark
Flow Control XON/XOFF
Serial Line Surge Protection 15 KV ESD for all signals
Serial Signals RS-232: TxD, RxD, GND
RS-422: TxD+, TxD-, RxD+, RxD-, GND
RS-485-2 wire: Data+, Data-, GND
RS-485-4 wire: TxD+, TxD-, RxD+, RxD-, GND
Housing Aluminum sheet metal
Antenna Connector Reverse SMA , 2 dBi Antenna
Dimensions 105 x 105 x 27mm
Operating Temperature 0°C to +70°C ( +32°F to +131°F ) , 5% to 95% RH
Input Voltage 12 - 24 VDC 1A
Standards and Certifications FCC, CE, RoHS
Warranty 1 year

For alternative serial wireless solutions please see our full selection of wireless serial adapters


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