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background data does not change as a function of time.
Dynamic data has the following information:
* Distance-to-go
* Groundspeed
* Estimated time of arrival
* V speeds
* GPS position data
* Desired track
* Waypoint bearing
* Cross-track deviation
* Range to altitude
* Vertical deviation
* Set landing altitude
* DME elevation
* Transition altitude
* FMC discrete word 2
* FMC discrete word 3
* FMC position
* Track angle (magnetic and true)
* Wind speed and direction
* Drift angle
* Flight path angle
* Alpha numeric display data
* Flight number.
Background data has this type of information:
* Vector lines
* Special symbols
* Standard character text messages
* Discrete words defining map/plan mode and range data.
This data is formatted and sent by the DEUs to the display units
(DUs) to show the airplane position with respect to the flight
plan path and navigation facilities (navaids, waypoints, airports
etc.).
GPWC
The GPWC uses magnetic track and present position (latitude
and longitude) from FMC 1 for its envelope modulation
calculations.
FDAU
Display data from FMC 1 goes to the FDAU where it is stored in
the solid state memory.
SHZ 009-999
Passenger Flight Information System (Airshow)
The passenger flight information system uses this data from the
FMC:
* Distance-to-go (waypoint)
* Groundspeed
FMCS - DIGITAL OUTPUT INTERFACE - 2
EFFECTIVITY
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SHZ 009-999 (Continued)
* Origin/destination
* GMT
* Date
* Destination estimated time of arrival (ETA)
* Static air temperature
It uses this data with other navigation sensors to format and
show flight progress information to the passengers.
SHZ ALL
FMCS - DIGITAL OUTPUT INTERFACE - 2
EFFECTIVITY
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FMCS - DIGITAL OUTPUT INTERFACE - 2
FMCS - DIGITAL OUTPUT INTERFACE - 2
EFFECTIVITY
SHZ 001-003 34-61-00
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FMCS - DIGITAL OUTPUT INTERFACE - 2
FMCS - DIGITAL OUTPUT INTERFACE - 2
EFFECTIVITY
SHZ 009-999 34-61-00
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THIS PAGE IS INTENTIONALLY LEFT BLANK
FMCS - DIGITAL OUTPUT INTERFACE - 2
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FMC Digital Output
The FMCS transfer relay 1 is mechanically latched to the BOTH
ON L/NORMAL position. CDU 1 and CDU 2 get their data from
FMC 1.
FMC Digital Input
CDU 1 sends data through the integrated flight system
accessory unit (IFSAU) to FMC 1. This allows a portable CDU
to be connected in the electronic equipment compartment in
place of CDU 1. CDU 2 sends data directly to FMC 1.
CDU Analog Output
Each CDU sends an analog discrete to FMC 1 to show a failure
of the CDU.
FMCS - CDU INTERFACE
EFFECTIVITY
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FMCS - CDU INTERFACE
FMCS - CDU INTERFACE
EFFECTIVITY
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General
SHZ 009-999
The airborne data loader (ADL) connects to the FMCs through
the data loader control panel.
SHZ 001-003
You must connect a portable data loader to the data transfer
unit receptacle before you can transfer data to or from the
FMCs. The receptacle connects the portable data loader to the
FMCs through the data loader control panel.
SHZ 009-999
The data loader gets 115v ac power from the P18 circuit breaker
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