3M XT-1 - Page 24

Installation
March 2014 – Revision 2.0
Page 24 of 74
3M™ Drive-Thru Systems Model G5 and Model XT-1
Installation Manual
Terminal Label
Definition and Connection Information
RELAY1_COM
Relay 1 common
RELAY1_NO
Connect to relay 1 if normally open relay
RELAY1_NC
Connect to relay 1 if normally closed relay
RELAY2_COM
Relay 2 common
RELAY2_NO
Connect to relay 2 if normally open
RELAY2_NC
Connect to relay 2 if normally closed
RELAY3_COM
Relay 3 common
RELAY3_NO
Connect to relay 3 if normally open
RELAY3_NC
Connect to relay 3 if normally closed
EXT_AUDIO: All of the wires on this terminal block go to the external audio device
IN+
Positive in (connects to positive in on device)
IN-
Negative in (connects to negative out on device)
GND
Ground
OUT+
Positive out (connects to positive in on device)
OUT-
Negative out (connects to negative in on device)
Base Station to Component Wiring
Good Wiring Practices
To reduce interference and improve signal quality, use the following practices
for all communication wiring:
• Keep shielding on the cable as close to the terminal as possible.
• Do not untwist pairs more than necessary.
• Do not allow cable strands to fray.
• Do not tin cable leads with solder.
• Fold un-insulated wire over onto itself before inserting into a terminal.
• Make sure screw terminals are tight.
A minimal, typical arrangement of the components is shown in Figure 8: