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MK VI MK VIII EGPWS Installation Design Guide
Proprietary notice on title page applies
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-150 REV:
SHEET 257
5.3.12 Category 12, Windshear Input Select
The following table provides identification of the Windshear Input Type. The entry in the Windshear Input Type
corresponds to a table that provides detailed information on the configuration. For example, the details for Windshear
Input Type #255 are found in 5.3.12-255.
In this category, only the following signals are to be defined:
• Body Angle of Attack (AOA) in ARINC 429 format
• Normalized Angle of Attack (AOA) in ARINC 429 format
Table 5.3.12: Windshear Input Select
ID Windshear
Input Type
Description
Windshear
Disable
Windshear
INOP
Windshear
Caution
Windshear
Caution Voice
Software
Effectivity
EGPWS
Effectivity
Disable Disable Disable
MKVI MKVIII
0 N/A No Windshear TRUE TRUE TRUE TRUE -020 X X
253 255
Digital – ARINC 429
AOA (via Dual IOC
buses). (Note 1)
FALSE FALSE TRUE TRUE -020 N/A X
254 255
Digital – ARINC 429
AOA (via Dual IOC
buses). (Note 1)
FALSE FALSE FALSE TRUE -020 N/A X
255 255
Digital – ARINC 429
AOA (via Dual IOC
buses). (Note 1)
FALSE FALSE FALSE FALSE -020 N/A X
Note 1: IDs 253, 254, and 255 may only be used in conjunction with other IOC bus selections for categories 2, 6, 8, 9, 10,
and 11.
Table 5.3.12-255: Windshear Input Type 255
CHANNEL
429RX_1
CONNECT TO: IOC #1 Bus
Format: ARINC 429 (High Speed)
Fault Designation: IOC BUS 1
Bus Type: Basic
A = J2-37
B = J2-36
Data
Left Angle of Attack Body
Normal Angle of Attack
Reference
6.2.44
6.2.52
Label
224
236
Sig. Bits
12
15
Range
±180 degrees
0 to 1
Signal Type
Basic
Basic
Resolution
0.0439453125 deg
0.00003051757812
Rate (ms)
100
80
CHANNEL
429RX_3
CONNECT TO: IOC #2 Bus
Format: ARINC 429 (High Speed)
Fault Designation: IOC BUS 2
Bus Type: Basic
A = J2-41
B = J2-40
Data
Right Angle of Attack Body
Normal Angle of Attack
Reference
6.2.45
6.2.52
Label
225
236
Sig. Bits
12
15
Range
±180 degrees
0 to 1
Signal Type
Basic
Basic
Resolution
0.0439453125 deg
0.00003051757812
Rate (ms)
100
80