MD-11 Flight Crew Operations Manual
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Aircraft General -
Description and Operation
Agen.10.20
Electronic Instrument System
The Electronic Instrument System (EIS) consists of six DUs installed in the
instrument panel, two EIS Control Panels (ECP) on the glareshield, one System
Display Control Panel (SDCP) on the aft pedestal, one Remote Light Sensor
(RLS) on each DU and one on top of the glareshield, and three Display Electronic
Units (DEU) in the electronics bay.
The EIS displays will appear on the six DUs (numbered 1 through 6 starting on
the far left side). The displays are:
• DU1 and DU6 are the Primary Flight Displays (PFD). The PFDs display
attitude, airspeed, barometric altitude, radio altitude, vertical speed,
heading, vertical and lateral deviation, limits, and flight modes. Controls
for the PFDs are on the glareshield. The PFD and associated controls are
described in the Automatic Flight chapter.
• DU2 and DU5 are Navigation Displays (ND). The NDs display aircraft
position, waypoints, navaids, and airports. Controls for the NDs are on the
glareshield. The NDs and associated controls are described in the
Instrumentation and Navigation chapter.
• DU3 is the Engine and Alert Display (EAD). The primary engine display
appears on the upper 2/3 of the EAD. Alerts appear on the lower 1/3 of the
EAD. The primary engine display is described in the Engines chapter.
Alert display is described in the Warning and Alerting chapter.
• DU4 is the System Display (SD). The SD displays either secondary
engine data, systems synoptic, status pages, miscellaneous pages, or
consequences pages. Selection is made by pushing the associated cue
switch on the SDCP. The SD synoptic is described in the associated
system chapter. SD alerts and related pages are described in the Warning
and Alerting chapter. Each DU presents a full color display with 6.5 inch
by 6.5 inch usable area. Automatic and manual brightness controls ensure
readability from dark to full sunlit ambient conditions. If the SMOKE
switch on the forward overhead panel is pushed, the DUs will go to full
bright. Each DU can accept data from any of the three DEUs. Manual
brightness controls for the DUs are on the SDCP.
In case of DU failure, the EIS will reconfigure to display all data required for
operation of the remaining DUs.
Six controls are provided for on/off and manual brightness control of each DU.
Turning the knobs fully counterclockwise through a detent turns off the associated
DU. When a DU is turned off with the knobs on the SDCP, the DU will go into a
low power condition. This allows the DU to cool and be available for possible
later use.
October 02, 2006
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