User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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4--92
(c) Glideslope Cancel Indicator
The Glideslope Cancel Indicator output discrete is activated when the T
2
CAS
detects the Glideslope Cancel input discrete is active AND the aircraft is at a low
altitude (below 2000 ft. radio altitude).
(d) Ground Proximity Caution Alert
Used to activate the GPWS Caution Alert lamp.
(e) Ground Proximity Warning Alert
Used to activate the GPWS Warning Alert lamp.
(f) TAWS Caution Alert
Used to activate the TAWS Caution Alert lamp.
(g) TAWS Warning Alert
Used to activate the TAWS Warning Alert lamp.
(h) Terrain Mode Display #1/Terrain Mode Display #2
The Terrain Display Switch output discretes are used to activate external relays
that make the switch between Weather and Terrain. When the relay is activated
(IO_TERRAIN_DISPLAY_SWITCH_# is Active), Terrain is displayed. When the
relay is de--activated (IO_TERRAIN_DISPLAY_SWITCH_# is Not Active),
Weather is displayed.
This output discrete can be activated/de --activated by one of two methods: Pilot
selection via a control panel pushbutton, or as a result of the auto pop--up
feature. In the event that the TAWS function generates an alert, terrain is
automatically selected for display.
(i) Windshear Caution Alert
Used to activate the Windshear Caution Alert lamp.
(j) Windshear Warning Alert
Used to activate the Windshear Warning Alert lamp.
(2) Ground Discrete Monitor Parameters
This section describes the T
2
CAS TAWS/RWS ground discrete monitor outputs. The
ground discrete monitor outputs are used to signal failure conditions and are
activated (grounded) when power is removed from the LRU.
(a) GCAM Fail Indicator
Used to activate the GCAM Fail lamp.