usb serial adapter from $19.95 only at serial adapter source
rs485 converter 421
Hot! Industrial Monitoring and Control Remotely access RS-232 devices over your Ethernet
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rs485 converter

USB RS485 Adapter to RJ45 FTDI chip inside
Features : USB to RS-485 Adapter USB to RS-485 adapter provides an extra Serial Com port via USB connection and can be configured to work with RS-485 peripherals such as POS and Industrial Control devices. USB...
Part No. USB-RS485-RJ | View Details
USB to RS-485 Adapter W/Terminal Block Changer FTDI chip inside
Features : Professional grade USB to RS485 Converter optimized for Windows 7/8 and Server 2003/2008. High-Speed and Interface compliance,USB1.1,2.0,3.0, EIA/TIA RS-485 USB USB to RS-485 Adapter W/Terminal Bl...
Part No. USB-RS485-AT | View Details
Passive RS-232 to RS-485 Converter
Features : EIA/TIA RS232C standard and RS485 standard This adapter is able to convert an RS-232 signal to an RS-485 balanced differential signal and extend the communication distance up to 0.75 miles. RS-23...
Part No. US-485C | View Details
FTDI Hi-Speed USB to Industrial Single RS-422/485 Adapter
Features : The USB-COMi-TB USB-to-Industrial Single RS-422/485 Adapter is designed to make industrial communication port expansion quick and simple. Connecting to a USB port on your computer or USB hub, the USB-...
Part No. USB-COMi-TB | View Details

usb serial adapter from $19.95 only at serial adapter source