Installation Guide

• Device harness wiring layout
• Wiring best practices
• Wire splicing
• 2-wire versus 3-wire installation
• 2-wire installation steps
• 2-wire installation for nose-mounted semi-trailers using a 7-way connector
• 3-wire installation steps
• 3-wire Installation for reefer trailers
• Connecting to digital input/output sensors
Device harness wiring layout
The EAT device has a molded 15.4’ long power and I/O harness terminating with these color-coded wires
with bare leads:
C O L O R
F U N C T I O N
Red
VDC Battery (power source)
White
Ignition
Black
Ground
Violet
Digital Input 1: High ([+] trigger)
Violet/Black
Digital input 1: Low ([-] trigger)
Blue
Digital input 2: High ([+] trigger)
Blue/Black
Digital Input 2: Low ([-] trigger)
Brown
Digital Output 1 High ([+] output)
Green
Digital Output 1 Low ([-] output)
Gray
One-Wire I/O (not used)*
• One-Wire I/O will not be used at launch but is planned for a later phase.