User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.
4--56
The aircraft type data is produced by ACSS, and contains data that is specific to
each particular aircraft type. It contains performance data for that aircraft which is
used by TAWS and Windshear functions. It also contains I/O configuration data for
the aircraft that defines and con f igures the interfaces to the aircraft system. For e ach
aircraft type, a unique Aircraft Type Data file is produced by ACSS that has a unique
part number.
The Installation Option data replaces the function of program pin (strap) inputs, and
allows the installer to customize the operation of the unit at the time of installation.
Types of functions that can be configured include display options, discrete output
options, altitude callout options, aural annunciation volume control, and other options.
A complete list of Operator Selectable Options is contained in Table 4-- 7 and
Table 4--8.
The programming of the APM includes the Aircraft Type Data and Installation Option
Data, and is accomplished through the RS--232 port on the PDL connector through a
Laptop PC, or a Compact Flash Card. The APM data file that contains both types of
data is generated on a PC with the EDDIT software tool and allows the selection of
the aircraft type and installation options for that aircraft type. The EDDIT tool builds a
file that contains a cyclical redundancy check (CRC) field around the APM data. With
a blank APM installed in the aircraft, the file can be uploaded to the T
2
CAS unit over
the RS--232 port or through a Compact Flash card. The T
2
CAS will then program the
APM.
Verification of the correct APM contents may be accomplished by the RS--232 port or
on the TAWS display. After the APM is programmed, the T
2
CAS, will output the
Aircraft Type Data part number and the installation option settings to the RS--232
port. Additionally, it will display the APM configuration information on the TAWS
display. The data contained in the APM is recorded as part of the aircraft
configuration data. The software in the T
2
CAS unit checks the CRC of the data to
insure the file is not corrupted.
Table 4--7. Callout Configuration Items
Configuration Option ACD Setting Option
Callout Enable Flag [1] Enable/Disable Callouts
Bank Angle Callout Enable Flag Enable/Disable Bank Angle
Callout
DH/MDA Switch Available Flag Enable/Disable
Decision Height Callout Enable Flag Enable/Disable DH Callout
Minimums Callout Enable Flag Enable/Disable Minimums Callout
Minimums--Minimums Callout Enable Flag Enable/Disable Callout
Approaching Decision Height Callout Enable Flag Enable/Disable Approaching DH
Callout
Approaching Minimums Callout Enable Flag Enable/Disable Approaching
Minimums Callout