User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
5--7
• “TOO LOW, GEAR”
• “TOO LOW, FLAPS”
• “GLIDESLOPE”
NOTE: “≈≈” designates a pair of varying tones from 400 to 800 Hz; where each
tone is 0.3 seconds in duration, separated by 0.1 seconds, and at the end of
the pair there is 0.1 seconds of silence.
NOTE: The aural annunciations listed above will depend on the Operator Selectable
Options chosen during installation of the T
2
CAS unit.
Upon completion of the Standard Self--Test the following will occur:
If the T2CAS unit has the windshear function enabled and the APM and Terrain
Database and Internal system and Internal GPS self--tests have passed, the
following aural annunciation will occur:
”TERRAIN AWARENESS AND WINDSHEAR TEST PASSED”
If the T2CAS unit does not have the windshear function enabled and the APM
and Terrain Database and Internal system and Internal GPS self--tests have
passed, the following aural annunciation will occur:
”TERRAIN AWARENESS TEST PASSED”
If the T2CAS unit does not have the windshear function enabled and the APM or
Terrain Database or Internal system or Internal GPS self -- tests have failed, the
following aural annunciation will occur:
”TERRAIN AWARENESS AND WINDSHEAR TEST COMPLETE”
If the T2CAS unit does not have the windshear function enabled and the APM or
Terrain Database or Internal system or Internal GPS self -- tests have failed, the
following aural annunciation will occur:
”TERRAIN AWARENESS TEST COMPLETE”
If the TAWS/RWS standard test fails, do the T
2
CAS Computer Unit Self--Test
procedures referenced in paragraph 4.C. to determine which LRU or subsystem is
not functioning properly. To troubleshoot the system, refer to the procedures in the
FAULT ISOLATION section.
(2) Extended Test Mode
The Extended Self--Test can only be entered at the completion of the Standard
Self --Test. The Extended Self--Test can only be entered while on the ground
(RMP --5K = GND). The Extended Self-- Test is activated at the end of the Standard
Self --Test by activating the self--test discrete input (RTP--10E = GND) for a minimum
of 3 seconds within 3 seconds after the initial aural annunciation (”TERRAIN
AWARENESS AND WINDSHEAR TEST COMPLETE” or ”TERRAIN AWARENESS
TEST COMPLETE ” or ”TERRAIN AWARENESS AND WINDSHEAR TEST PASSED”
or ”TERRAIN AWARENESS TEST PASSED”) occurs. This activation sequence is
summarizedinFigure5--2.