Honeywell MK VI Pilot's Manual page 42

AHRS, IRS,
VG, DG
Global
Positioning
System (GPS)
VHF Nav Re-
ciever
Terrain
Display
System
Discretes
Configuration
Module
42
Roll Attitude, Pitch Attitude, Magnetic Heading.
Latitude and Longitude Position, True Track Angle, GPS Altitude,
Groundspeed, Horizontal and Vertical Figure of Merit (VFOM/
HFOM), Horizontal Integrity Limit (HIL), N/S and E/W velocity,
and sensor status.
Glideslope, Localizer, and ILS Tuned.
Display range. If EFIS, the EFIS display mode is used in some
configurations.
Discrete inputs are used for system configuration, signal/status
input, and control input functions.
Signal/status discretes include signals such as Decision Height,
Landing Flap Position, Landing Gear selected, and status discretes
such as Glideslope Valid, Magnetic Heading valid, and Radio Alti-
tude Valid associated with analog signal inputs.
Control discretes control EGPWS functions. These include EG-
PWS Test, Glideslope Cancel, Glideslope Inhibit or Glideslope
Backcourse, Terrain (display) select, Terrain Inhibit, Flap Over-
ride, Audio Inhibit, Steep Approach select, Autopilot Engaged,
Mode 6 Low Volume Select, and ILS Tuned discretes.
An EGPWS Configuration Module is utilized to tell the system the
type of aircraft it resides in and its interface. This is defined and
established during the EGPWS installation. EGPWS output func-
tions are consequently the result of the configuration state read
each time the EGPWS is powered on.
060-4314-000 • Rev. C - May 2004
MK VI & MK VIII EGPWS Pilot Guide