PowerMax binding question about tcp port

I am very new to Openhab and I have some questions about the powermax binding.

I have managed to install the binding, and struggle to configure it correctly. I have my Visonic Powermaster 10 up and running since many years with PowerLink3 and I have it connected via ethernet to my network. I also have it conncted to a power manage server, so I can use the App to control the alarm remotely.
I have entered the IP adress of the alarm, but I have no clue what to input as tcp port?
I have also chosen power master 10 in the alarm type box, the rest is unchanged.

What tcp port an I supposed to set?

The IP connection is for serial over IP. The binding is not conceived to control a PowerLink module.