User's Manual Part 1

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CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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1--49
H. TAWS Terrain Hazard Display
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CAS installations require at least one TAWS terrain hazard display. ARINC 708A and
ARINC 429 WXR display and EFIS interfaces are supported. Figure 1--15 shows a
typical single ARINC 708A terrain hazard display interface. T
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CAS’ dual-- independent
terrain hazard display I/O supports dual ARINC 708A and dual ARINC 429 terrain hazard
display systems.
(1) Functional Description and Operation
The terrain hazard display function enhances situational awareness by providing a
display of terrain--related hazardous situations in front of the aircraft on e xisting
ARINC 708A compatible weather radar or EFIS flight deck displays. The display may
be either the EFIS Navigation Display (for EFIS -- equipped aircraft) or the weather
radar display. A crew--activated switch is used to select/deselect the terrain image on
the display.