P 1.1.1 receiver question

[syotr]

I am using a Phantom 1.1.1 receiver and transmitter in a quad I am building. I have connected one of the receiver cables to the X2 port on my NAZA Lite and all functions seem to be working. What is the other connector for? I think I have seen it connected to the U port in some photos.

 

[ElGuano]

The other servo connector goes to X1 (not U), it's for the diversity antenna. I don't know if it's functional on a Lite....