Honeywell MKXXII Table E 3.1.2-4 AIR Data Input Select #4 Summary Data, Connect to Channel

Honeywell

MK XXII EGPWS Installation Manual

SIGNAL

Uncorrected Barometric Altitude

Outside Air Temp Total Air Temperature

CONNECTION

(+)= J1-62 (-) = J1-43

TABLE E 3.1.2-4: AIR DATA INPUT SELECT #4

SUMMARY DATA

Format: DC with Validity Flag

Input Type: Basic

Fault Designation: BAROMETRIC ALTITUDE FAULT

Validity: Barometric Alt Valid (+28V)

Format: DC

Input Type: Basic

Fault Designation: STATIC AIR TEMPERATURE FAULT

Probe element Excitation:

Temp Input (probe element):

Ground

5 V = J1-25

(+)= J1-63 (-) = J1-44

GND = J1-53

J1

OAT PROBE ELEMENT Voat

25(5 V Ref)

4.42K Ohms

63	+	Temp In
	-
44

53 Chassis Gnd

Computed Airspeed

PIN FUNCTION

Barometric Altitude Validity Discrete (+28V)

No Connection

CONNECTION

J1-9

N/A

PIN TYPE

Input

Note: Nominal 500 Ω Temperature Probe only.

Resistance @ 0°C: 500Ω ± 0.6Ω

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.

Substitute Ground Speed for Airspeed (airspeed is not available with this air data input)

CHANNEL
DESIGNATION	Polarity/Configuration	References
REFERENCE
28V_DISC_08	>+17V = Valid	6.6.19
	< +4.4V = Invalid	4.2.7

				Type				Summary Data
			Analog			Baro Altitude Rate is derived using
						Uncorrected Barometric Altitude. Baro Rate
						is not available with this air data source.
	TABLE E 3.1.2-5: AIR DATA INPUT SELECT #5
		Fault Designation: AIR DATA BUS
		Bus Type: Basic
		Label		Sig. Bits	Range		Signal Type		Resolution	Rate (ms)
203			17		±131,072 FT		Basic	1.0		31.3-62.5
204			17		±131,072 FT		Basic	1.0		31.3-62.5
206			14		±1024 KTS		Basic	0.0625		62.5-125
212			11		±32678 FPM		Basic	16.0		31.3-62.5
213			11		±512 Degrees		Basic	0.25		250-500

Configuration Data

Derive Baro Altitude Rate

	CONNECT TO:
CHANNEL
	ADC #1 (Low Speed)
429RX_2
	Format: ARINC 429
A = J2-39	Data
B = J2-38	Uncorrected. Baro. Alt
	Corrected Baro. Alt
	Computed Airspeed
	Barometric Rate
	Static Air Temperature

CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225 REV: C SHEET 192