Honeywell MK VI - Manual (Page 179)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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5.3.2 Category 2, Air Data Input Select
The following table provides identification of the Air Data source type. The entry in the Air Data Type corresponds to a
table that provides detailed information on the configuration. For example, the details for Air Data Type #2 are found in
Table 5.3.2-2. In this category, only the following signals are defined:
• Uncorrected Barometric Altitude in analog, ARINC 575, or ARINC 429 format, and associated validity.
• Temperature (Outside Air or Static Air) in analog, ARINC 575, or ARINC 429 format.
• Corrected Barometric Altitude in ARINC 429 format.
• Barometric Rate in ARINC 575 or ARINC 429 format.
• Computed Airspeed in ARINC 575 or ARINC 429 format.
TABLE 5.3.2: AIR DATA INPUT SELECT
ID
Air Data
Type
Description
Software
Effectivity
EGPWS
(Table
5.3.2-x)
MKVI MKVIII
0 0
Analog - Uncorrected Baro altitude and 500 Ω OAT
(i.e., CIC 04077)
-020 X X
1 1
Digital - ARINC 429
(i.e., Bendix KDC 281)
-020 X X
2 2
Digital - ARINC 575
(i.e., Collins ADC-80, 81, 82)
-020 X X
3 3
Analog - Uncorrected Baro altitude and 500 Ω OAT
(i.e., Collins ADS-65)
-020 X X
4 4
Analog - Uncorrected Baro altitude and 500 Ω OAT
(i.e., CIC 02702)
-020 X X
5 5
Digital - ARINC 429 with Corrected Altitude label 204
(i.e., Bendix KDC 481T)
-020 X X
6 6
Digital - ARINC 429 without Baro Rate label 212
(i.e., Honeywell AZ-810)
-020 X X
10 10
Digital - ARINC 429 and 500 Ω OAT
(i.e. Shadin 2000)
-020 X X
11 11
Analog - Uncorrected Baro altitude and 500 Ω OAT
(i.e., Honeywell AZ-241, AZ-242, AZ-648, AZ-800,
AZ-810) (Note 2) -020 X X
12 12
Analog - Uncorrected Baro altitude without temperature
(i.e., Honeywell AZ-241, AZ-242, AZ-648, AZ-800,
AZ-810) (Note 2)
-020 X X
13 13
Digital - ARINC 429 Uncorrected Altitude label 203
without temperature
-020 X X
255 255
Digital – ARINC 429 (via dual IOC buses).
(Note 1)
-020 N/A X
Note 1: ID 255 may only be used in conjunction with other IOC bus selections for categories 6, 8, 9, 10, 11 and 12.
Note 2: The AZ-800 provides an OAT signal with reference provided by the ADC. This signal is not compatible
with any current EGPWS interface. The AZ-241 does not provide an OAT interface. The installer may either
add an OAT probe (ID 11) or use the internal constant (ID 12). Honeywell recommends ID 11 (added OAT
probe) be used when operating in temperature extremes.