• Asynchronous RS232 interface modules
  • Up to 16 ports
  • Optional 2,000 V optical isolation
  • Compatible with standard PC serial port
  • Enhanced serial driver
  • Handles RTS/CTS hardware

The National Instruments PXI-8420 Series modules are asynchronous RS232 interfaces, available with up to 16 ports. NI PXI-8422 Series modules are identical but offer 2,000 V optical isolation for 2 and 4-port models.