Honeywell MK VI User Manual
Page 180
Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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TABLE 5.3.2-0: AIR DATA INPUT SELECT #0
SIGNAL
CONNECTION
REFERENCE
SUMMARY DATA
Uncorrected Barometric
Altitude
(+) = J1-62
(–) = J1-43
6.1.3
Format: DC with Validity Flag
Input Type: Basic
Fault Designation: BAROMETRIC ALTITUDE FAULT
Validity: Barometric Alt Valid (+28V)
Outside Air Temp
Total Air Temperature
Probe element
Excitation:
Temp Input
(probe element):
Ground
5 V = J1-25
(+) = J1-63
(–) = J1-44
GND = J1-53
6.1.4
4.2.3.5
4.2.10
Format: DC
Input Type: Basic
Fault Designation: STATIC AIR TEMPERATURE FAULT
OAT PROBE
ELEMENT
25
J1
(5 V Ref)
63
44
Temp In
4.42 K Ohms
53
Voat
Chassis Gnd
-
+
Note: Nominal 500
Ω
Temperature Probe only.
Resistance @ 0
°
C: 500
Ω
±
0.6
Ω
Connection example:
CIC Temperature Sensor, P/N 05257 (2 wire). Connect positive
lead to both J1-25 and J1-63. Connect negative lead to both J1-
44 and J1-53 (Chassis Ground).
Other probes may have three contacts.
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. Baro Rate
is not available with this air data source.
TABLE 5.3.2-1: AIR DATA INPUT SELECT #1
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
Computed Airspeed
Barometric Rate
Static Air Temperature
Reference
6.2.1
6.2.39
6.2.3
6.2.2
Label
203
206
212
213
Sig. Bits
17
14
11
11
Range
±131,072 FT
±1024 KTS
±32768 FPM
512 Degrees
Signal Type
Basic
Basic
Basic
Basic
Resolution
1.0
0.0625
16.0
0.25
Rate (ms)
31.3-62.5
62.5-125
31.3-62.5
250-500