Enhanced GPWS - Control and Indicating R Figure 028 (SHEET 1)
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 Enhanced GPWS - Control and Indicating R Figure 028 (SHEET 2)
R 1EFF : 106-149, 215-299, 301-399, 401-499, 1 34-48-00Page A59 1 1 Config-1 Aug 01/05 1 1 1CES 1

 Enhanced GPWS - Control and Indicating R Figure 028 (SHEET 3)
R 1EFF : 106-149, 215-299, 301-399, 401-499, 1 34-48-00Page A60 1 1 Config-1 Aug 01/05 1 1 1CES 1

 Enhanced GPWS - Control and Indicating R Figure 028 (SHEET 4)
R 1EFF : 106-149, 215-299, 301-399, 401-499, 1 34-48-00Page A61 1 1 Config-1 Aug 01/05 1 1 1CES 1

R **ON A/C 401-499,

R E. Warning Generation and Inhibition
R (1) Audio Output
R Alert outputs result in an audio voice warning unless inputs are
R invalid or one of the audio suppression discretes is active. The
R actual output message, or intended message during audio suppression,
R is sent to the warning lamp logic for proper output activation.
R The audio outputs consist of a transformer isolated 600 Ohm output.
R Aural warnings and their priority rate are as follows:

R ------------------------------------------------------------------------R | RELATIVE | WARNING | POSSIBLE | LEGEND | R | PRIORITY | CONDITION | MESSAGES | | R |----------------------------------------------------------------------| R | HIGHEST | Mode 1 Pull Up | PULL UP | PULL UP | R |----------|--------------------------|-------------------|------------| R | | Mode 2 Pull Up Preface | TERRAIN TERRAIN | PULL UP | R |----------|--------------------------|-------------------|------------| R | | Mode 2 Pull Up | PULL UP | PULL UP | R |----------|--------------------------|-------------------|------------| R | | Terrain Awareness Preface| TERRAIN AHEAD | PULL UP | R | | | PULL UP | | R |----------|--------------------------|-------------------|------------| R | | Terrain Awareness Pull Up| TERRAIN AHEAD | PULL UP | R | | | PULL UP | | R |----------------------------------------------------------------------| R | | Obstacle awareness | OBSTACLE AHEAD | PULL UP | R | | Preface | PULL UP | | R |----------|--------------------------|-------------------|------------| R | | Obstacle Awareness | OBSTACLE AHEAD | PULL UP | R | | Pull Up | PULL UP | | R |----------|--------------------------|-------------------|------------| R | | Mode 2 Terrain | TERRAIN | GPWS | R |----------|--------------------------|-------------------|------------| R | * | Terrain Awareness Caution| TERRAIN AHEAD | GPWS | R |----------|--------------------------|-------------------|------------| R | | Obstacle Awareness | OBSTACLE AHEAD | GPWS | R | | Caution | | | R |----------|--------------------------|-------------------|------------| R | * | Mode 4 Too Low Terrain | TOO LOW TERRAIN | GPWS | R |----------|--------------------------|-------------------|------------| R | | TCF Too Low Terrain | TOO LOW TERRAIN | GPWS | R |----------|--------------------------|-------------------|------------| R | * | Mode 4 Too Low Gear | TOO LOW GEAR | GPWS |
R 1EFF : 401-499, 1 34-48-00Page A62 1 1 Config-1 Aug 01/05 1 1 1CES 1

 ------------------------------------------------------------------------| RELATIVE | WARNING | POSSIBLE | LEGEND | | PRIORITY | CONDITION | MESSAGES | | |----------------------------------------------------------------------| R |----------|--------------------------|-------------------|------------| R | * | Mode 4 Too Low Flaps | TOO LOW FLAPS | GPWS | R |----------|--------------------------|-------------------|------------| R | * | Mode 1 Sinkrate | SINKRATE | GPWS | R |----------|--------------------------|-------------------|------------| R | * | Mode 3 Don't Sink | DON'T SINK | GPWS | R |----------|--------------------------|-------------------|------------| R | LOWEST * | Mode 5 Glide slope | GLIDE SLOPE | GPWS | R ------------------------------------------------------------------------
R * Allows interleaving of multiple alerts.
R
R The voice warning circuits also contain logic elements which ensure
R that:
R - only one message at a time is output,
R - higher priority messages interrupt lower priority messages except
R if interleaving is allowed (Ref. table above),
R - a triggered message is completed even when warning condition
R ceases,
R - a 0.75 second pause exists between warning messages.

R (2) Alert discrete outputs
R "PULL UP"audio message activate the warning lamp output (which
R illuminates PULL UP red legend).
R All other messages activate the alert lamp output (which illuminates
R GPWS amber legend).
R (Ref. Fig. 003)

R (3) Control and Indicating
R (Ref. Fig. 028)
　
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