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EGPWS LINE MAINTENANCE MANUAL
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO.: 060-4199-180 REV: G SHEET 41 of 68
3.8.8.2 STEEP APPROACH DISCRETE #2
Type: Steep Approach Selected
Signal Status: Steep Approach Selected or Not Selected
Level 6 Audio readout
Steep Approach Discrete #2
Selected =>
Not Selected =>
“Steep Approach Selected”
“Steep Approach Not
Selected”
3.8.9 GND ILS TUNED DISCRETE
Type: Supplied by ILS/VOR Mode Selector.
Signal Status: ILS tuned or VOR tuned
Level 6 Audio readout
GND ILS Tuned Discrete #1
ILS Tuned =>
ILS Not Tuned =>
“ILS 1 Tuned”
“ILS 1 Not Tuned”
GND ILS Tuned Discrete #2
ILS Tuned =>
ILS Not Tuned =>
“ILS 2 Tuned”
“ILS 2 Not Tuned”
3.8.10 +28V ILS TUNED DISCRETE
Type: Supplied by ILS/VOR Mode Selector.
Signal Status: ILS tuned or VOR tuned
Level 6 Audio readout
+28 V ILS Tuned Discrete #1
ILS Tuned =>
ILS Not Tuned =>
“28V ILS 1 Tuned”
“28V ILS 1 Not Tuned”
+28 V ILS Tuned Discrete #2
ILS Tuned =>
ILS Not Tuned =>
“28V ILS 2 Tuned”
“28V ILS 2 Not Tuned”
3.8.11 GLIDESLOPE VALIDITY DISCRETES
Two Glideslope Validity Discretes may be used by EGPWS, one for each possible ARINC 547 Glideslope Receiver
input.
Type: Validity from ARINC 547 Glideslope receiver.
Signal Status: Valid or Invalid
Level 6 Audio readout
Glideslope Validity Discrete #1
Valid =>
Invalid =>
“Glideslope 1 Valid”
“Glideslope 1 Invalid”
Glideslope Validity Discrete #2
Valid =>
Invalid =>
“Glideslope 2 Valid”
“Glideslope 2 Invalid”