PCIe-1477 RS-422 interface documentation and/or examples

I cannot find any documentation or examples on how to access or use the PCIe-1477 RS-422 interface.

NI MAX does not find or recognize any com ports after installing the PCIe-1477 in a computer running Windows 11.

The NI PCIe-1477 Specification indicates the PCIe-1477 has Bidirectional (RS-422) or single ended differential I/O.

Any help pointing me to documentation and/or examples would be greatly appreciated.