QM8790 is an externally managed switch which doesn’t have console port.
- The micro-usb interface is used for providing I²C access. This is used for debugging purposes by NVDA FAEs.
Please refer to the HW UM:
https://docs.nvidia.com/networking/display/qm87xx/interfaces
What are you trying to achieve with console access to the (externally managed) switch?
thanks!