Proper labeling and color must be followed if the external lamp option is used.
Same as on-screen Red Warning
Same as on-screen Amber Caution
TAWS INH
AMBER
Same function as on-screen TAWS INH annunciation
FLAP OVRD
AMBER
Same function as on-screen FLAP OVRD annunciation .
G/S OVRD
AMBER
Same function as on-screen G/S OVRD annunciation.
GPWS FAIL
AMBER
Same function as on-screen GPWS FAIL annunciation
3.4 Flaps
The ST3400 has provisions on J-2 for Flaps In Landing Configuration input. This
is obtained from either a discrete input (Flaps Down) Arinc 429 label 270 source,
or XYZ. This input is required for Class A and recommended for Class B.
Flaps input is required for Class A compliance and is recommended for Class B.
Note that for Class-A if flaps are misconfigured to ‘NONE’ a GPWS FAIL
indication will appear on the display.
Configuration is performed in the Maintenance Menu pages given in the Setup
Procedures section of this manual. If the installation aircraft uses flaps for normal
takeoff, ensure that this input triggers in landing configuration not in takeoff
configuration
3.5 Landing Gear
Landing Gear Position input is required for Class A compliance and is
recommended for Class B (if aircraft is retractable gear).
The ST3400 has provisions on J-2 for Gear Down input discrete to indicate that
the gear is in the “DOWN” position.
The configuration is performed in the Maintenance Menu pages given in the
Setup Procedures section of this manual. If the system is installed in an aircraft
without a retractable landing gear, select “NONE” on maintenance page
configuration item.
3.6 Autopilot
The ST3400 has provisions on J-2 for discrete input signals to obtain an
indication of Autopilot Engage. The input signals are used to modify alerting
characteristics.
The Autopilot Engaged discrete is configurable for either valid High (<14vdc off,
>14vdc on) or valid Low (<3.5vdc on, >3.5vdc off).
3-2 ST3400 INSTALLATION MANUAL 82002-IM-L
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