-
a 0.75 second pause exists between warning messages.
(2) Alert Discrete Outputs Mode 5 GLIDE SLOPE message activates the alert lamp output (which illuminates G/S amber legend). All other messages activate the warning lamp output (which illuminates GPWS red legend). (Ref. Fig. 003A)
(3) Control and Indicating R (Ref. Fig. 028A)
(4) Inhibitions
(Ref. Fig. 005A)
(a)
All audio inhibition:
-The INHIBIT ALL AUDIO discrete input controls the audio outputs as follows. When grounded, all voices are inhibited (not interrupted, all aural messages once started are finished). Visual and display indications are not affected. This input is used to manage the audio priority with other systems (FWS, PWS, TCAS).
(b)
Modes 1 to 5 inhibitions:
-The INHIBIT MODES 1 TO 5 discrete input controls the audio and visual outputs as follows. When grounded,this input always inhibits all GPWS aural and visual indications with the exception of Terrain Clearance Floor Alerts and Terrain Awareness caution and warnings. This input is wired to SYS pushbutton switch to manually inhibit GPWS Modes 1 to 5.
(c)
TAD and TCF inhibitions:
-The TERRAIN AWARENESS INHIBIT discrete input controls the audio, visual and display outputs as follows. When grounded, this input always inhibits TAD and TCF aural, visual and display indications. This input is wired to the TERR pushbutton switch to manually inhibit the TAD and TCF functions.
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- When the automatic deselection option actived TAD and TCF
functions may also be inhibit automatically when the FMS
aircraft position accuracy is not accurate enough. This is
indicated to the crew by the automatic deselection of terrain
display and the illumation of the TERR STBY memo on the ECAM
display unit.
R **ON A/C 401-499,
R (5) Inhibitions
R (Ref. Fig. 005)
R (a) All audio inhibition:
R - The INHIBIT ALL AUDIO discrete input controls the Enhanced GPWC
R audio outputs as follows. When grounded, all voices are
R inhibited (not interrupted, all aural messages once started are
R finished). Visual and display indications are not affected.
R This input is used to manage the audio priority with other
R systems (FWS, PWS, TCAS).
R (b) Modes 1 to 5 inhibitions:
R - The INHIBIT MODES 1 TO 5 discrete input controls the Enhanced
R GPWC audio and visual outputs as follows. When grounded,this
R input always inhibits all GPWS aural and visual indications
R with the exception of Terrain Clearance Floor Alerts and
R Terrain Awareness cautions and warnings. This input is wired to
R GPWS/SYS pushbutton switch to manually inhibit GPWS Modes 1 to
R 5.
R (c) TAD and TCF inhibitions:
R - The TERRAIN AWARENESS INHIBIT discrete input controls the
R Enhanced GPWC audio, visual and display outputs as follows.
R When grounded, this input always inhibits TAD and TCF aural,
R visual and display indications. This input is wired to the
R GPWS/TERR pushbutton switch to manually inhibit the TAD and TCF
R functions.
R This results in the display of the TERR OFF memo on the EWD.
R - When the automatic deselection is activated, the TAD and TCF
R functions can also be automatically inhibited when the FMS
R aircraft position accuracy is not accurate enough. This is
R indicated to the crew by the automatic deselection of the
R terrain display and the illumination of the TERR STBY memo on
R the EWD.
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Enhanced GPWS - Control and Indicating R Figure 028A (SHEET 1)
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Enhanced GPWS - Control and Indicating R Figure 028A (SHEET 2)
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Enhanced GPWS - Control and Indicating R Figure 028A (SHEET 3)
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Enhanced GPWS - Control and Indicating R Figure 028A (SHEET 4)
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