Honeywell MK VI - Manual (Page 185)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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TABLE 5.3.2-12: AIR DATA INPUT SELECT #12
SIGNAL CONNECTION REFERENCE SUMMARY DATA
Uncorrected Barometric
Altitude (+) = J1-62
(–) = J1-43
6.1.16
Format: DC with Validity Flag
Input Type: Basic
Fault Designation: BAROMETRIC ALTITUDE FAULT
Validity: Barometric Alt Valid (+28V)
Outside Air Temp No Connection N/A No temperature
Computed Airspeed No Connection N/A Substitute Ground Speed for Airspeed (airspeed is not available with this air data
input)
PIN FUNCTION CONNECTION PIN TYPE
CHANNEL
DESIGNATION
REFERENCE
Polarity/Configuration References
Barometric Altitude
Validity Discrete (+28V) J1-9 Input 28V_DISC_08 >+17V = Valid
< +4.4V = Invalid 6.6.22
4.2.7
Configuration Data Type Summary Data
Derive Baro Altitude Rate Analog Baro Altitude Rate is derived using
Uncorrected Barometric Altitude.
Although the ADC’s provide Baro Rate,
the EGPWS does not have an analog
connection available.
TABLE 5.3.2-13: AIR DATA INPUT SELECT #13
CHANNEL
429RX_2 CONNECT TO: ADC #1
Format: ARINC 429 (Low Speed) Fault Designation: AIR DATA BUS
Bus Type: Basic
A = J2-39
B = J2-38 Data
Uncorrected Baro. Alt Reference
6.2.1 Label
203 Sig. Bits
17 Range
±131,072 FT Signal Type
Basic Resolution
1.0 Rate (ms)
31.3-62.5
Outside Air Temp No Connection N/A No temperature
Computed Airspeed No Connection N/A Substitute Ground Speed for Airspeed (airspeed is not available with this air data
input)
Configuration Data Type Summary Data
Derive Baro Altitude Rate Digital Baro Altitude Rate is derived using
Uncorrected Barometric Altitude.
Baro Rate is not available with this air
data source.