Installation 
 
 
March 2014 – Revision 2.0 
Page 22 of 74 
3M™ Drive-Thru Systems Model G5 and Model XT-1 
Installation Manual 
 
Figure 7   
 
Definition and Connection Information 
Incoming power supply from the transformer 
ORDER POINT: All of the wires on this terminal block go to the order point or monitor speaker 
Positive phase microphone wire 
Negative phase microphone wire 
Microphone wire shielding 
Positive phase order point speaker 
Negative phase order point speaker