Installation
3M™ Wireless Communication System Model XT-1
Installation Manual
May 2008 – Revision 1.3
Page 17 of 62
Terminal Label
Definition and Connection Information
12V IN
Incoming power supply from the transformer
ORDER POINT: All of the wires on this terminal block go to the order point or monitor speaker
12V OUT
12 VDC power supply
EARTH
Earth
ground
MIC+
Positive phase microphone wire
MIC-
Negative phase microphone wire
GND
Microphone wire shielding
MEN SPKR+
Positive phase order point speaker
MEN SPKR-
Negative phase order point speaker
MON SKR+
Positive phase monitor speaker
GRT_CN
GRT_CN