Honeywell MK VI - Manual (Page 300)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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6.6.14 Decision Height Discrete
Type: Decision Height Bug switch
Signal Status: Less than Decision Height or Greater than Decision Height
Level 6 Audio readout
DH Discrete
Less Than DH =>
Greater Than DH =>
“Below DH”
“Above DH”
6.6.15 Mode 6 Low Volume Discrete
Type: Mode 6 low volume select switch
Signal Status: Low Volume Select or Normal Volume
“Low Volume” in this case refers to the -6db volume level used during Self-Test. “Normal Volume” refers to the audio
output level selected per Category 14 (5.3.14).
Level 6 Audio readout
Mode 6 Low Volume Discrete
Low Volume =>
Normal =>
“Mode 6 Low Volume”
“Mode 6 Normal Volume”
6.6.16 GND Audio Inhibit Discrete
Type: Analog discrete input from a flight deck mounted switch
Signal Status: Audio Suppress enabled or disabled/All Modes Inhibit enable or disable
Fault Monitoring: Activation of this input will result in the “External EGPWS Inhibited”.
Level 6 Audio readout
GND Audio Inhibit Discrete
Inhibit =>
Not Inhibit =>
“Audio Inhibit”
“Audio Not Inhibit”
6.6.17 +28V Audio Inhibit Discrete
Type: Analog discrete input from a flight deck mounted switch
Signal Status: Audio Suppress enabled or disabled/All Modes Inhibit enable or disable
Fault Monitoring: Activation of this input will result in the “External EGPWS Inhibited”.
Level 6 Audio readout
+28V Audio Inhibit Discrete
Inhibit =>
Not Inhibit =>
“28 Volts Audio Inhibit”
“28 Volts Audio Not Inhibit”
6.6.18 Display Select Discrete #1
Type: Supplied by momentarily actuated cockpit manual switch.
Signal Status: Terrain Awareness Display (TAD) activated if not active or TAD canceled if currently active.
Level 6 Audio readout
Display Select Discrete #1
True =>
False =>
“Display Discrete 1 True”
“Display Discrete 1 False”