Technical data

Product Specification
HIF-2121/R5 CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 965-1176-601 REV: D SHEET 132
• Configuration database.
• Voice Waveform database
• Image DSP programs
In self-test level 3 and RS-232 present status, the application software will report the versions of the application software
(which includes the configuration database), terrain database, Envelope Modulation database, and boot code. In addition, the
application software will report the EGPWC part number, modification status, and serial number.
If Terrain Awareness is enabled (Terrain Awareness is basic and must be disabled via configuration module), the application
software will check “compatibility” between itself and the terrain database upon each power up or reboot of the EGPWC.
The application software will determine if the terrain database is compatible.
If Terrain Awareness is enabled (Terrain Awareness is basic and must be disabled via configuration module), failure of the
application software compatibility check with the terrain database will set TA&D INOP and force self-test level 2 to report
“Terrain database incompatible”.
For Envelope Modulation, the application software will check “compatibility” between itself and the Envelope Modulation
database upon each power up or reboot of the EGPWC. The application software will determine if the Envelope Modulation
database is compatible.
For Envelope Modulation a failure of the application software compatibility check with the Envelope Modulation database
will set Envelope Modulation INOP and force self-test level 2 to report “Envelope Modulation database incompatible”.
The configuration software contains the following subcomponents:
• Aircraft interface files
• Aircraft configuration files
6.10.11.1.3 Terrain Database
The Terrain database contains the following subcomponents:
• Terrain database
• Runway database
The terrain database may also include an obstacle database to activate the obstacle alerting feature.
The Terrain database has one version number accessible by the application software. For the MKVIII EGPWS this version
number will be in the form of a 3 digits (e.g. 419). For the MKVI EGPWS this version number is four characters where the
extra character indicates which region is present, e.g. 419N (Americas), 419A (Atlantic) or 419P (Pacific). The terrain
database will have a compatibility index accessible by the application software.
6.10.11.1.4 Envelope Modulation database
The Envelope Modulation database has one version number accessible by the application software. The Envelope Modulation
database will have a compatibility index accessible by the application software.
6.10.11.2 Software Updates
The details on how software updates are to be performed are described in section 6.10.11 data loading.
The implementation of software updates is as follows: When a software update (data load) is complete, the EGPWC uses and
reports (via level 3 self-test and RS-232 present status) the updated software/database version(s).
6.10.11.3 ATP Configuration Management
The hardware part number must be stored in the EGPWC. The easiest way to store this part number is via the ATP.
During ATP the following will occur:
1) The ATP will provide a list of all possible EGPWC part numbers and modification status and prompt the test
operator to select the part number & mod status of the EGPWC being tested.
2) The ATP will command the part number and the modification status to be stored in the NVM of the EGPWC.
3) The ATP will prompt the test operator to enter in the serial number of the EGPWC being tested. This serial
number may be as few as 3 characters, to as many as 6 characters.
4) The ATP will command the serial number of the EGPWC being tested to be stored in the NVM of the EGPWC.