Black Box USB TO RS-422 RS-485 OPTO-ISOLATOR

  • Black Box
  • 32877270
  • SP390A-R2
  • Temporarily Out-of-Stock
  • Call for next available delivery
Ordering Information
$139.79
With this compact optically isolated device, you can protect your PC from dangerous spikes and surges on the RS-485/RS-422 network. Simply plug it into your PC's USB port (using an optional USB Type A - Type B cable) and configure its DIP switches for 2- or 4-wire operation. There's no need to use any ISA or PCI slots or IRQs. Windows automatically configures the output as an additional COM port.