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 1. General
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 The EIS (Electronic Instrument System) presents on Display Units (DUs):

 -EFIS (Electronic Flight Instrument System) information, (i.e. flight
 parameters and navigation data).

 -ECAM (Electronic Centralized Aircraft Monitor) information, (Ref.
 31-50-00) The layout of the 6 DUs and the breakdown of the information displayed on them is presented as follows: (Ref. Fig. 001)
 -
2 DUs are installed side by side in front of each pilot. They display flight and navigation data. On each main instrument panel, in normal configuration, the outer DU is allocated to the Primary Flight Display (PFD) function, and the inner DU to the Navigation Display (ND) function. Each pilot is given the possibility to display ECAM information instead of navigation information on its inner DU, in order to cover ECAM DU failure cases.

 -
2 DUs are installed on the center instrument panel, one above the other. They display ECAM information.

 A.
 Information Presented on EFIS DUs (Ref. Fig. 002) The EFIS DUs enable display for the crew of flight path control and navigation data. It includes the Primary Flight Display (PFD) and the Navigation Display (ND). The PFD image presents the main information necessary for the control of the A/C arranged in the basic T configuration.

 Each pilot has at his disposal two CRT display units, one PFD and one ND, on which is displayed all the information that the following instruments usually present:
 -Attitude Director Indicator
 -Horizontal Situation Indicator
 -Mach-Airspeed Indicator
 -Altimeter Indicator
 -Vertical Speed Indicator
 -Radio Altimeter Indicator
 -Weather Radar Indicator
 -Marker Beacon Indicator lights
 -Flight Mode Annunciator (autopilot/flight director modes).
 (1) The instrument Primary Flight Display (PFD) displays all the primary flight indications necessary for short-term aircraft control (hence its name), that is:
 -attitude (pitch, roll), lateral acceleration/side slip indication,
 1EFF : 106-149, 303-399, 1 31-60-00Page 1 1 1 Config-3 Aug 01/05 1 1 1CES 1

 TCAS Indications Figure 001
 1EFF : 1 1 1CES  106-149, 303-399,  1 111 Page 231-60-00 Config-3 Aug 01/05

 PFD and ND Image Figure 002
 1EFF : 1 1 1CES  106-149, 303-399,  1 111 Page 331-60-00 Config-3 Aug 01/05

 -attitude protections, side stick orders on the ground,
 -flight path angle and drift angle (on pilot's request),
 -guidance (flight director or flight path orders),
 -magnetic heading and selected heading or track, plus A/C drift angle,
 -airspeed and associated selections (manual or automatic), plus all speed limits (flight envelope protection limits, high lift devices retraction/extension speeds, etc...),
 -baro altitude and associated selections (manual or automatic) and baro reference setting, plus flight profile deviation,
 -vertical speed,
 -TCAS indication (up and down advisories)
 -radio altitude and Decision Height,
 -vertical deviation (glide/slope or other vertical deviation
 indication),

 -lateral deviation (localizer or other lateral deviation
 indication),

 -marker beacon indications
 -AFS status (engagement status, armed/active modes,...)
 - other specific messages from AFS or EFCS.

 (2) The instrument Navigation Display (ND) displays the navigation information necessary as the flight progresses, and in the mode chosen by the pilot: Rose, (with NAV, VOR, ILS submodes), ARC, PLAN. This information is:
 -Heading and associated selection
 -Drift angle/track and associated selection
 -Selected course, lateral deviation (VOR, LOC), TO/FROM indication
 -Glide slope vertical deviation in ILS mode
 -True Air Speed, Ground Speed
 -Wind Indication
 -Range marks
 -Weather Radar image
 -Map with flight plan which includes A/C situation (position, track)
 -Waypoints, radio beacons, airports situation in the flight plan (upon manual option selection)
 -indication on the map of tuned and selected for display radio stations (VOR/DME, ADF, ILS),
 - on manual selection: navigation station frequency or identification, DME distances, VOR/ILS course, ADF and/or VOR bearings (pointers),
 -constraints
 -chrono indication (elapsed time).
　
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