6
3. INSTALLATION
Model 840 fits into a dash-panel cutout
measuring 2-1/16” (52mm)
Pin
Number
Function
"Spy" Version
CAN Version
1
No Connect
CAN Hi
2
No Connect
CAN Lo
3
B+ (Heater) 24VDC
B+ (Heater) 24VDC
4
B+ (Heater) 36VDC
B+ (Heater) 36VDC
5
B+ (Supply)
B+ (Supply)
6
Rx (Receive Data)
No Connect
7
No Connect
No Connect
8
B–
B–