6. B. (4) FZ-820 Flight Guidance Computer Interface
The FZ-820 Flight Guidance Computers provide flight director mode
status, command bar data, and PFD priority select information.
The
PFD priority select information determines which PFD (pilot or
copilot) is to display command bar data.
Flight director mode
status is provided on both PFDs.
(5) NZ-920 Navigation Computer Interface
The NZ-920 Navigation Computer transmits basic navigation data for
display as part of its primary data field on the ASCB. This data
includes current navigation data and TO waypoint guidance
information.
In addition to the basic navigation data, the
navigation computer supplies the following information as part of
its background data field:
● 51 Flight Plan Waypoints
- 1 previous
- 50 current
. 10 Immediate Area Navaids
G 9 Immediate Area Airports
. Current Position
. TO Waypoint Curved
. Holding Pattern
● Vertical Profile
Path
(6) AZ-81O Digital Air Data Computer Interface
The AZ-81O Digital Air Data Computers provide altitude, airspeed,
normalized angle of attack, and vertical speed ARINC 429 information
for display on the PFDs. The symbol generator provides comparison
monitoring of the data, and the DC-884 Display Controller determines
which computer’s data is displayed.
(7) Inertial Reference System Interface
The inertial reference system provides pitch and roll attitude and
heading ARINC 429 information
for display. The symbol generator
provides comparison monitoring of the data and the DC-884 Display
Controller determines which inertial reference sensor to utilize.
22-14-00
Page 159
Apr 15/93
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