About to install a BE33000 to replace an older Orbi system with a failing mesh system.  I have a 1g fiber optic going to an ATT router. 

One BE95 unit (the base unit) will be connected via CAT5 cable to the ATT router.  Each of the two BE95 satellites will be connected to the base unit via CAT5 cable (backhauled). 

 My questions: 

1) To what port on the tp-link base unit should I connect the incoming internet feed from the ATT router?  

2) From what port on the tp-link base unit should I connect the 2 CAT5 cables going to the satellites? and

3) Into what port on the satellites should the CAT5 cable from the base unit be connected.=?

Best to all this new year.