REV. 1 August 17, 2004
5
1.2.4 FRONT PANEL CONTROLS AND ANNUNCIATIONS
1.2.4.1 CONTROLS
CDI
Momentary action switch, when pressed, will select VOR/ILS
(NAV) or GPS presentation on HSI/CDI.
SUSP
Momentary action switch, when pressed, will suspend automatic
waypoint sequencing in the active flight plan.
1.2.4.2 ANNUNCIATIONS
NAV
VOR or ILS information presented on the HSI or CDI.
GPS
GPS information presented on the HSI or CDI.
MSG
Flashing indicates new status message(s) available
WPT
Flashing indicates aircraft is 10 to 20 seconds of reaching the
turning point for course change. Steady indicates aircraft in
course change turn.
SUSP
Automatic sequencing of waypoints has been suspended.
LOI
Loss of Integrity. WAAS/GPS detects a position error or unable
to calculate integrity of position.
PTK
Parallel track mode is selected.
ALT
Altitude Alert. Indicates the estimated altitude is lower than the
alarm limits.
TERM
On indicates aircraft is navigating within 30 miles of the
departure or arrival airport or on a SID or STAR.
APR
On indicates the approach is active.
1.2.5 INTERFACE
CDI (select)
J1 Pin 4
Provides a momentary low to the GNS 480 (CNX80)
SUSP (select)
J1 Pin 12
Provides a momentary logic low to the GNS 480 (CNX80)
when Suspend is selected.
NAV annunciation
J1 Pin 2
Receives ground from GNS 480 (CNX80) when in
VOR/ILS mode.
NAV annunciation
output, J1 Pin 16.
Logic low when NAV annunciation is turned on. May be
connected to MD200 NAV annunciation input.
GPS annunciation
J1 Pin 1
Receives ground from GNS 480 (CNX80) when in GPS
mode.
