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EIS - Switching and Control Panel
Figure 011
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3
_
Rotating the knob selects the desired QNH baro reference setting. On the PFD, below the altitude scale, the baro reference value and the QNH indication are displayed.
NOTE : hPa or in.Hg is not written, since no confusion is
____ possible.
When pulling the knob, the standard baro reference setting
(1013 hPa or 29.92 inches of Hg) is selected. This is
indicated by STD in block letters in the BARO correction
display and by STD below the altitude scale on the PFD.
The baro reference value is not displayed, and rotating the
knob has no effect.
When pushing the knob, from the STD situation, the QNH baro
setting is available again.
QFE option
If the QFE option is installed, each pilot has the possibility
of switching from QNH to QFE the baro reference setting of his
altitude scale: when QNH is selected, pressing the knob
selects QFE, pressing it again selects back QNH, etc...
On the FCU EFIS control panel, the display shows BARO and the
selected BARO reference value.
On the PFD, QFE or QNH is written below the altitude scale,
with the selected baro reference value.
From the STD selection, pressing the knob always selects QNH
first.
QFE is boxed for a better discrimination with QNH.
FD pushbutton switch
This pushbutton switch, when pressed, enables the pilot to
remove the FD bars from his PFD (or the Flight Path Director
guidance symbols if the FPA/TRK mode is selected on the AFS
control panel of the FCU).
The pushbutton switch bars then go off (FD OFF indication).
When pressing it again, the FD bars (or the FPD symbol) come
back into view and the pushbutton switch bars come on green
again (FD ON indication).
NOTE : With the TRK/FPA mode selected, pressing the FD OFF
____ P/BSW removes the FPD symbol, but not the FPV symbol.
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4_ LS pushbutton switch
This pushbutton switch, when pressed, enables the pilot to
have the LOC and GLIDE scales and deviation symbols on his
PFD. Its three light bars come on green. When pressing it
again, the bars go off and the ILS deviation indications
disappear from the PFD.
Pressing this P/BSW also controls the display of the QFU
symbol (ILS course) on the heading scale of the PFD and on the
ND.
(b) ND control
1 Mode selector switch
_ This mode selector switch enables each pilot to have the desired presentation of navigation information on his ND:
a In ROSE mode, a full heading dial is presented, oriented to
_ the A/C present heading. Three sub-modes are available:
-ROSE-NAV : The flight plan is presented, with the A/C position in it and the navaids positions
-ROSE-VOR : This sub-mode gives the conventional HSI presentation, with the VOR deviation with respect to the selected course
-ROSE-ILS : ditto, but with the LOC deviation information, with respect to the selected ILS course
A further sub-mode might be offered for the MLS function.
b In ARC mode, only the 90. heading sector ahead of A/C is
_ shown. The flight plan is presented, with A/C position in it and the navaids positions.
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