Overview of the System
Version 1.02, January 2019
Page 9 of 25
5
Overview of the System
5.1
Overview
The LXNAV system consists of many different displays, units and sensors which talk to each
other via the CAN bus.
5.2
Communication BUS
Most devices in LXNAV system talk to each other via the CAN bus. We use standard
M12mm NMEA connectors. Bus must be terminated at the beginning and end of chain with
CAN terminators.
Another way of communication with peripheral devices is via the RS232 serial interface.
This interface is mostly used to connect 3
rd
party devices into the LXNAV system (external
Flarm, ADSB,…). For each device we have a specially designed cable. The RS232
connection should be done by RJ12connector on the back side of eCopilot unit.
5.3
Harness and Cables
The main unit cable has two power supply wires (red for positive +12V DC and blue for
ground potential. Third wire can be optionally connected to auxiliary power supply.
5.4
Available Cables and Harnesses
Cable Part Number
Description
CAN BUS cable 0.5m
CAN BUS cable 1m
CAN BUS cable 2m
CAN BUS cable 3m
CAN BUS terminator (male)
CAN BUS terminator (female male)
