Below is a setup diagram showing how to connect your XP7, Sierra, or Z7 (Headset Only) to a Xbox One Console.
What you'll need:
PS4 Talkback Cable (2.5mm to 3.5mm cable) (Not for Z7)
Headset Audio Controller (for Xbox One Controllers without a 3.5mm headset jack)
or Xbox One Stereo Headset Adapter (sold by Microsoft).