Honeywell

MK XXII EGPWS Installation Manual

SIGNAL

Uncorrected Barometric Altitude

Outside Air Temp Total Air Temperature

CONNECTION

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

TABLE E 3.1.2-11: AIR DATA INPUT SELECT #11

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 Temperature Probe only.

Resistance @ 0°C: 500Ω ± 0.6

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

 

 

 

 

 

 

 

 

 

 

Configuration Data

Derive Baro Altitude Rate

Type

Analog

Summary Data

Baro Altitude Rate is derived using Uncorrected Barometric Altitude. Although the AZ-241 provides Baro rate, the EGPWS does not have an analog connection available.

CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225

REV: C SHEET 194

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Image 194
Honeywell MKXXII installation manual Table E 3.1.2-11 AIR Data Input Select #11 Summary Data