Vario Unit; Connecting Vario Unit; Cut-Outs - LXNAV LX90xx System Installation Manual

Installation and Configuration
Even though there is an automatic fuse in the instrument it is VERY IMPORTANT
to use an external fuse (max. 3A). Power supply cables should use a minimum of
0.5 mm² AWG20 wires.
When main unit is connected to vario and other peripheral units, we can make functionality
test. After power up, vario unit should turn on. Other peripheral units have on visual
indication, so they will be tested on main unit.
5.2.1

Vario Unit

5.2.1.1 Connecting vario unit

Vario unit is connected to main unit through RS485 bus. SC cable is used for external switch,
for switching between climb and cruise mode. In case that SC is connected to flaps switch,
VP (vario priority) is connected to switch on stick. Inputs IN1...4 are used to connect to gear
switch, airbrakes, etc...

5.2.1.2 Cut-outs

5.2.1.2.1 Cut-out for V5 and V9
Drawing is not to scale
5.2.1.2.2 Cut-out for V8
Drawing is not to scale
Length of screw is limited to max 4mm!
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Version 1.0, June 2015