Figure 3.23 Cable Connections For Z-Xtreme Rover With Internal Radio - ashtech Z-Xtreme System Manual

the receiver will be slightly different, as seen in Figure 3.23.

Figure 3.23 Cable Connections for Z-Xtreme Rover with Internal Radio

With the internal radio, the Radio Communication/Power cable is no longer present.
In its place, a radio antenna cable is added connecting to the port labeled "RADIO".
42 Real-Time Kinematic Surveying