Here is a close-up of the ports on the front. You usually hook this up inside your company firewall.

I did not see the console port documented. It uses a RJ-45 connector (more properly called an 8P8C connector.) I don't know what the pin-out on it is, but as you'll see, its connected to the serial port.

In background, you can see the huge fan which blows across the motherboard. I think this is the one making most of the noise.