Confused about pre-wired home ethernet, help!

[varunm]

Hi everyone!

I'm about to close on a new house and apparently we are pre-wired for ethernet with "data" ports in each room. However, I don't know where I plug in a gigabit switch to give the whole network life? I see several ethernet wires going into a Legrand Telephone Module (TM1045), am I supposed to disconnect those and plug them all in to a separate switch? I also see some dangling ethernet wires off to the right, maybe it's one of those?

Any help would be much appreciated, thank you!

 

[USAFRet]

Without an accurate full wiring diagram of the whole house, it is almost impossible to say.

At a guess, the yellow wire is the WAN. But plugged between what? A modem and router?

 

[popatim]

The 1045 is a telephone line splitter. And the thing on top is an 8way cable/video splitter.
Do the rooms have a seperate telephone jack? You might have to take some wallplates off to see what is behind them and compare wire labels to what you see in the box here. Its quite common to run cat5 for telephone too.