See also here:
https://dl.ui.com/qsg...You need a special console cable to access CLI
Settings: RJ45 Console Port
RJ45 serial console port for Command Line Interface (CLI) management Use an RA5-toDB9, serial console cable, also known as a rollover cable, to connect the Console port to your computer. Then configure the following settings as needed:
•Baud rate 115200
•Data bits 8
•Parity NONE
•Stop bits 1
•Flow control NONE
USB-C connection could be used for the same purpose