- 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.
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