Avidyne IFD550 Pilot's Manual page 392

IFD500 Series Pilot Guide
Traffic
Low 4NM
* The above alert is just an example. After "Traffic" will be
either "Low" or "High", then the distance in nautical miles.
The long text omits Low/High and instead shows signed
relative target altitude in feet.
This is a traffic advisory with no bearing information.
Establish visual contact with conflicting traffic in order to
facilitate avoidance maneuvers as necessary.
Traffic
12:00 3NM
* The above alert is just an example. After "Traffic" will be the
bearing in clock direction, then the distance in nautical
miles.
This is a traffic advisory with no relative altitude information.
Establish visual contact with conflicting traffic in order to
facilitate avoidance maneuvers as necessary.
Traffic 2NM
* The above alert is just an example. After "Traffic" will be the
distance in nautical miles.
This is a traffic advisory with no relative altitude information
and no bearing information. Establish visual contact with
conflicting traffic in order to facilitate avoidance maneuvers
as necessary.
7-14 General
Traffic 4NM -200FT
Traffic 12:00 3NM
Traffic 2NM