Technical data

Product Specification
PROPRIETARY NOTICE ON TITLE PAGE APPLIES
ASAF-2121/R2 CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 965-1176-601 REV: D SHEET 5
6.2 GPWS FUNCTIONS .....................................................................................................................................................46
6.2.1 Mode 1 -- Excessive Descent Rate .....................................................................................................................47
6.2.2 Mode 2 -- Excessive Terrain Closure Rate ........................................................................................................53
6.2.3 Mode 3 -- Descent After Takeoff ........................................................................................................................58
6.2.4 Mode 4 -- Unsafe Terrain Clearance.................................................................................................................61
6.2.5 Mode 5 -- Descent Below Glideslope.................................................................................................................71
6.3 T
ERRAIN CLEARANCE FLOOR .....................................................................................................................................75
6.3.1 TCF System Requirements .................................................................................................................................75
6.4 A
DVISORY ALERTS .....................................................................................................................................................79
6.4.1 Minimums Type Callouts....................................................................................................................................79
6.4.2 Altitude Callouts ................................................................................................................................................80
6.4.3 Smart Altitude Callouts......................................................................................................................................80
6.4.4 Excessive Bank Angle Callout............................................................................................................................80
6.4.5 Above Field Callout ...........................................................................................................................................82
6.5 MKVIII W
INDSHEAR DETECTION ALERTS.................................................................................................................83
6.5.1 Honeywell Windshear Detection........................................................................................................................83
6.6 R
ESERVED ..................................................................................................................................................................86
6.7 T
ERRAIN AWARENESS FUNCTIONS .............................................................................................................................87
6.7.1 EGPWS Input Processing and Signal Selection.................................................................................................87
6.7.2 Local Terrain Processing...................................................................................................................................89
6.7.3 Terrain Threat Detection ...................................................................................................................................89
6.7.4 Terrain/Obstacle Displays and Alerts................................................................................................................91
6.7.5 Terrain Database...............................................................................................................................................96
6.7.6 Obstacle Database.............................................................................................................................................96
6.7.7 Internal Magnetic Variation Database ..............................................................................................................96
6.7.8 Geometric Altitude .............................................................................................................................................97
6.7.9 WGS-84 Correction............................................................................................................................................99
6.7.10 Horizontal Position Source Selection ................................................................................................................99
6.8 E
NVELOPE MODULATION..........................................................................................................................................100
6.9 S
YSTEM OUTPUTS.....................................................................................................................................................103
6.9.1 Serial Output....................................................................................................................................................103
6.9.2 Audio Output....................................................................................................................................................103
6.9.3 Discrete Outputs ..............................................................................................................................................104
6.9.4 Display Output and Control.............................................................................................................................105
6.10 M
AINTENANCE FUNCTIONS ......................................................................................................................................108
6.10.1 Maintenance Philosophy..................................................................................................................................108
6.10.2 Windshear Monitor ..........................................................................................................................................108
6.10.3 LRU Flight history Recording..........................................................................................................................110
6.10.4 Front Panel......................................................................................................................................................113
6.10.5 Smart Cable (PCMCIA Interface)....................................................................................................................115
6.10.6 Self-Test............................................................................................................................................................117
6.10.7 ATP ..................................................................................................................................................................126
6.10.8 BIT Tests ..........................................................................................................................................................126
6.10.9 RS-232 Test Interface.......................................................................................................................................127
6.10.10 Data Loading Interface................................................................................................................................129
6.10.11 Configuration Management and Version Identification...............................................................................131
6.10.12 Present Status Output Format......................................................................................................................133
6.10.13 Flight History Output Formats ....................................................................................................................135
6.10.14 Internal GPS Status Format.........................................................................................................................141
6.10.15 Configuration Module Programming via RS-232........................................................................................142
APPENDICES........................................................................................................................................................................145
A
PPENDIX A: DEFINITIONS .....................................................................................................................................................145