R **ON A/C 001-004, 051-060,
The ILS comprises two independent ILS receivers 2RT1 and 2RT2 linked to a common localizer antenna 3RT and a glide slope antenna 4RT. The components given after can control the ILS system:
R (Ref. Fig. 004)
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the Multipurpose Control and Display Unit 1(2) (MCDU) 3CA1 (3CA2) and the Flight Management and Guidance Computer 1(2) (FMGC) 1CA1 (1CA2) for frequency/course selection in normal mode of operation,
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the Radio Management Panel (RMP) 1RG1 (1RG2) for frequency/course selection in back-up mode,
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the MCDU and the Centralized Fault Display Interface Unit (CFDIU) 1TW
for test purposes. The Morse-coded audio identification signals are sent to the Audio Management Unit (AMU) 1RN. These signals can be heard in the boomset and on loudspeaker according to the crew selection performed on the CAPT (F/O) Audio Control Panel (ACP) 2RN1 (2RN2). The EFIS display units show the ILS data:
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the CAPT Primary Flight Display (PFD) and the F/O Navigation Display (ND) show the deviations from the ILS1,
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the F/O PFD and the CAPT ND show the deviations from the ILS2. The MCDU(s) shows the maintenance data.
C. Utilization Technical Data
(1) Data display R (Ref. Fig. 005)
(a) On the PFDs On the right and below the attitude sphere, the deviation indications come into view in approach. These are :
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the vertical deviation scale,
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the lateral deviation scale,
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the related aircraft deviation symbols. If you select an ILS approach, the scales and symbols give GLIDE/SLOPE and LOCALIZER deviations. The scales come into view when you push the ILS pushbutton switch on the EFIS control section of the Flight Control Unit (FCU). The deviation symbols come into view when the related G/S and LOC signals from the ILS receiver are valid. If the ILS indications are available with the ILS pushbutton switch pushed they have priority over the deviation information of the R NAV approach. In this mode the data given after are shown (item 5): in the left bottom corner:
-ILS frequency (plus ILS identification if available),
R 1EFF : 001-004, 051-060, 1 34-36-00Page 7 1 1 Config-1 May 01/05 1 1 1CES 1 -ILS - DME distance. At the top section of the PFD a Flight Mode Annunciator shows the various armed/active longitudinal and lateral modes: (item 1): the G/S longitudinal modes are shown in the 2nd column (cyan for armed or green for active) (item 2): the LOC longitudinal modes are shown in the 3rd column (cyan for armed or green for active) VERTICAL DEVIATION (item 3) The vertical scale shows a classical glide slope deviation. It is linear with 2 dots on each side. Two dots correspond to plus (or minus) 0.175 ddm (150 microA) deviation. The index shows magenta G/S indication. Until the glide beam is captured, the glide index is not shown (Non Computed Data). When the index is against one stop only one half of it is in view (the outer half index). The glide slope index and the scale flash permanently in case of G/S excessive deviation warning. With a glide fault, the G/S index goes out of view and a red G/S failure warning message is shown in the middle of the scale.
R (Ref. Fig. 006) LATERAL DEVIATION (item 4) The horizontal scale shows a classical LOC deviation with 2 dots on each side. Two dots correspond to plus (or minus) 0.155 ddm (150 micro A) deviation. The index shows magenta LOC indication. Until the LOC is captured, the LOC index is not shown (Non Computed Data). When the index is against one stop, only one half of it is shown. The LOC index and the scale flash permanently in case of LOC excessive deviation warning. With a localizer fault, the LOC index goes out of view and a red LOC failure warning message is shown in the middle of the scale.
R (Ref. Fig. 006)
(b) On NDs in the ROSE ILS mode In the ROSE ILS mode, the ND gives a display which is similar to that of a conventional HSI : a heading dial orientated to the magnetic North turns and gives the actual magnetic heading of the aircraft in relation to the stable yellow lubber line. The ND is always heading up : a yellow aircraft model, at the center of the heading dial is stable and pointed up to the yellow lubber line. Small white triangles are put each 45 deg. on the circumference in relation to the lubber line. They are stable and do not turn with the heading dial. A green diamond-shaped symbol moves around the heading dial and gives the actual track of the aircraft.
R 1EFF : 001-004, 051-060, 1 34-36-00Page 8 1 1 Config-1 May 01/05 1 1 1CES 1
ILS - Control and Indicating R Figure 004
R 1EFF : 001-004, 051-060, 1 34-36-00Page 9/10 1 1 Config-1 May 01/05 1 1 1CES
R ILS - Data Display Figure 005
R 1EFF : 1 1 1CES 001-004, 051-060, 1 111 Page 1134-36-00 Config-1 May 01/05
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