you see that on one side there a bunch of purple cables not connected to anything and only a few are connected to the green cables from your router? you need to install a switch and hook all of the purple cables up.
Each of the purple cables on the right is a cable going to one of your rooms and the only ones hooked up are the ones connected to green cables from your router. The lights being off just means its not currently active/being used on the other side, it looks like you have 3 outlets hooked up right now.