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Honeywell
MK XXII EGPWS Installation Manual
CAGE CODE: 97896 SCALE: NONE SIZE: A DWG NO: 060-4314-225 REV: C
SHEET
74
WX System R/T
J2-37
J2-36
J1-58
J1-59
J1-51
J1-32
A
B
A
B
ARINC 453 TERRAIN BUS #1
ARINC 429 RANGE BUS
J1-54
Terrain Display Select #1 Discrete Output
Terrain Pop-Up Discrete Output
Display Select
Discrete #1 Input
DSD #1 Gnd
Gnd
Range #1
Gnd
TERR
ON
Momentary
28 VDC
DISPLAY RELAY
429 IN 453 OUT
453 #1
J1-56
J1-57
A
B
453 #2
J2-41
J2-40
A
B
Range #2
J1-31DSD #2 Gnd
Wx/TERR
Display
System
453 WX /
TERR BUS
A
B
A
B
TERRAIN
POP-UP
TERRAIN
SELECTED
429 Range
Output Bus
BRT/
DIM/
TEST
FIGURE 3.3.6-1 Single Tube Wx/Terrain Display
* Display relay specifications:
- 4PDT - Continuous Duty Cycle
- Pickup Voltage: 13.5 Vdc Max. - Dropout Voltage: 7.5 - 2.0 Vdc
- Coil Resistance: nominal 500 Ohms (~100mA @ 28 Vdc)
- Coil Rating: 26.0 Vdc (nominal) 34 Vdc (max.)
- Contact V drop: < 125mV @ rated load
- Contact current rating: 2 Amps resistive @ 28 Vdc