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MK XXII EGPWS Installation Manual
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225 REV: C
SHEET
85
3.3.8.4 Analog Radio Altitude Interface
64
45
29
J1
Radio Altimeter R/T
+
-
EGPWS MK XXII
(+)
(-)
Analog Radio Altitude
ARINC 552, ALT 55,
RT-200/300
Radio Altitude Valid +28V
Valid
DH Discrete (Gnd)
33
Radio Altimeter Indicator
DH
Vendor Model Indicator R/T
R/T Indicator SCALE DH + - Valid
Collins ALT 55
(3)
ALI-55 ALT55 P1-V P1-57 P1-59 P1-49
Collins ALT 50 -20 to 2100 ft P1-57 P1-59 P1-49
Honeywell HG7502 JG1072( ) ARINC 552 P1-e P4-47 P4-46 P4-27
Honeywell RT-300
(1)
RA-315 ARINC 552 P1-F P1-X P1-N P1-Y
Honeywell RT-200
(2)
RA-215 -.4mV/ft P1-F P1-N P1-W P1-Y
Honeywell KRA-405 KNI-415/416 ALT55 M P1-B P1-g S
Honeywell KRA 405B KNI-415/416 ALT55 M E X j
KRA 405B
(2)
066-01153-0101
-4mV/ft G Z j
KRA 405B
066-01153-0202
ARINC 552A Z G j
Honeywell ALA-51A INA-51( ) ARINC 552 P2-e P1B-
47
P1B-46 P1B-27
Collins 860F-1 339H-1/-2 ARINC 552 P1-e P1B-
47
P1B-46 P1B-27
NOTE 1: The following RT-300 part numbers meet ARINC 552 for the Auxiliary Output: 7001840 -
902, -906, -912, -916, -917, -918, -922, -926, -928, -932, -936, -937, and -938. Some RT-
200’s are also compatible, consult your Honeywell representative.
NOTE 2: This is the precision output from the R/T. Note the + and – signals are swapped to convert
the –4mV to +4mV.
NOTE 3: The ALT-55 provides compromised EGPWS performance due to the average altitude
tracking algorithm employed.