D
ATA
M
AXX
M
ODULES
M
AIN
M
ODULE
:
Overview
The Main Module is the heart and brain of the
D
ATA
M
AXX
system. It serves as the communication hub
and has the largest capacity for sensors. The Main Module also has 5 CAN Bus ports that act as the
communication medium to LCD, Analog, and EGT modules.
Capabilities
4 RPM Channels
4 Analog Channels
5 CAN Bus Connections
2 Switch inputs
2 Light outputs
1 SD Card slot
Installation
The Main Module should not be mounted where it is exposed to rain, or excessive engine, exhaust, or
transmission heat. If you are not using an LCD Dash unit then you will need to mount the Main Module
where you can easily access the SD memory card slot. For more information on avoiding ignition
interference refer to “Avoiding RFI Noise” in the Additional Information section.
The Main Module is the only part of the system that receives a power connection. The best Main
Module power connection is the same place you power the majority of your electronics and
tachometers. The next best connection is directly to the positive and negative terminals on your battery.
Connect the positive wire to the Main Module red color-coded terminal labeled “POWER 11-25V” (id
#36), and connect the negative (ground) wire to one of the shield terminal screws.
When installing any sensor with a supplied shield wire, connect to the 4 posts labeled “Braided shield
wires and Chassis/ Battery Ground”. For more information on correctly wiring your
D
ATA
M
AXX
refer to
the “Additional Information: Advanced Wiring Techniques”
Copyright c 2008 Computech Systems Inc. 6