EGPWS LINE MAINTENANCE MANUAL
3.8.12 GND GLIDESLOPE INHIBIT DISCRETE
Type: | Switch for inhibit of Glideslope mode |
Signal Status: | Glideslope Inhibit or Not Inhibit |
Fault monitoring: Mode 5 will be disabled and “Glideslope” will not be enunciated during cockpit
Level 6 Audio readout
Glideslope Inhibit Discrete
Inhibit => | “Glideslope Inhibit True” |
Not Inhibit => | “Glideslope Inhibit False” |
3.8.13 +28 V GLIDESLOPE INHIBIT DISCRETE
Type: | Switch for inhibit of Glideslope mode |
Signal Status: | Glideslope Inhibit or Not Inhibit |
Fault monitoring: Mode 5 will be disabled and “Glideslope” will not be enunciated during cockpit
Level 6 Audio readout
+28V Glideslope Inhibit Discrete
Inhibit => | “28V Glideslope Inhibit True” |
Not Inhibit => | “28V Glideslope Inhibit |
| False” |
3.8.14 GND GLIDESLOPE CANCEL DISCRETE
Type: | Supplied by momentarily actuated cockpit Glideslope mode manual inhibit switch. |
Signal Status: | Glideslope is canceled if glideslope function is active |
Fault monitoring: Activation of this input for more than 15 seconds will result in the ‘Glideslope Cancel Invalid’ fault which will cause a GPWS INOP indication. Typically, the Glideslope cancel can only be selected below 2000 feet AGL. However, some configurations only allow it below 1000 feet AGL.
Level 6 Audio readout
Glideslope Cancel Discrete
Cancel => | “Glideslope Canceled” |
Normal => | “Glideslope Enabled” |
3.8.15 DECISION HEIGHT DISCRETE
Type: | Decision Height Bug switch |
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Signal Status: | Less than Decision Height or Greater than Decision Height |
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| Level 6 Audio readout |
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DH Discrete
Less Than DH => | “Below DH” |
Greater Than DH => | “Above DH” |
CAGE CODE: 97896 | SCALE: NONE SIZE: A DWG NO.: | REV: G | SHEET 42 of 68 |
