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CONFIGURATION MODE
The system is configured when it is first installed by your avionics
supplier. Configuration items include the Mode S aircraft
address, the interface to the other aircraft systems (e.g. external
ident input, weight on wheels input, external standby input, serial
altitude output, Gray Code and serial altitude inputs, etc), the
aircraft category, and the pre-programmed values for VFR
squawk code. To view or change these settings you must use
Configuration Mode and described in the product Installation
Manual.
NOTE
Configuration Mode
Do not use Configuration Mode in-flight. Check with
your avionics installer before changing the
configuration.
To enter configuration mode, hold down the FUNC button whilst
switching on the transponder. Configuration items can be
changed using the selector knob or numeric buttons for data
input. Press the selector knob to accept the selection. Pressing
FUNC advances to the next configuration item.
When configuration is complete, switch the transponder off.
When it is switched back on the transponder will use the new
configuration.
LOW TEMPERATURE OPERATION
The AXP340 is certified to operate correctly down to -25C, but at
low temperatures the display may be impaired. On a cold day
you may need to wait for the cockpit to warm up to ensure normal
operation.
