The default configuration for the management port is DHCP. You can connect it to a DHCP-enabled network and retrieve the IP address from your router or by using an IP scanner. If needed, you can later switch to a static IP. To identify the correct COM port, check the Device Manager. Keep in mind that COM1 and COM2 are reserved by the OS, whether or not a physical port exists. It's worth noting that most modern computers lack a serial port.
In this specific case, the USB to Serial adapter shown in the image is recognized as COM10.
For a more streamlined setup, using TeraTerm (Terminal Emulator) is recommended, which specifically displays active COM ports and is quicker to configure.
Refer to the Product Manual for additional guidance.
You can also make use of the Windows utility available here
Furthermore, consult the Utility Product Manual here