How to install a 2GIG XCVR3

There is a wire that is not attached on this 2GIG XCVR3, can you tell me where it goes?

More than happy to assist!

The antenna, the 2GIG XCVR3 is needed so the 2GIG GC3 Panel can communicate via 900Mhz with the GC3 compatible 2GIG Image 2 image sensor.

From the installation manual:

Red Wire to Smoke+
Black Wire to Common (GND)
Green Wire to RX
White Wire to TX