Honeywell MK VI - Manual (Page 261)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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Table 5.3.13-2: Input/Output Discrete Type 2
CONN PIN #
CHANNEL
DESIGNATION
REFERENCE
PIN TYPE PIN FUNCTION Ref Polarity/Configuration
J1-38 28V_DISC_02 Input +28V Glideslope Inhibit Discrete 6.6.12
>+17V = Inhibit
<+4.4V = Not Inhibit
J1-19 GND_DISC_02 Input GND Glideslope Inhibit Discrete 6.6.11
Gnd = Inhibit
<not> Gnd = Not Inhibit
J1-37 28V_DISC_03 Input +28V Landing Flaps Discrete 6.6.5
>+17V = Flaps Up
<+4.4V = Not Flaps Up
J1-18 GND_DISC_03 Input GND Landing Flaps Discrete 6.6.4
Gnd = Flaps Up
<not> Gnd = Not Flaps Up
J1-36 28V_DISC_04 Input +28V Audio Inhibit Discrete 6.6.17
>+17V = Inhibit
<+4.4V = Not Inhibit
J1-17 GND_DISC_04 Input GND Audio Inhibit Discrete 6.6.16
Gnd = Inhibit
<not> Gnd = Not Inhibit
J1-35 28V_DISC_05 Input +28V Landing Gear Discrete 6.6.3
>+17V = Gear Down
<+4.4V = Gear Up
J1-16 GND_DISC_05 Input GND Landing Gear Discrete 6.6.2
Gnd = Gear Down
<not> Gnd = Gear Up
J1-15 GND_DISC_06 Input Glideslope Cancel Discrete (Note 1,4) 6.6.13
Gnd = Cancel Toggle
<not> Gnd = Normal
J1-14 GND_DISC_07 Input Momentary Flap Override Discrete (Note 1,4) 6.6.6
Gnd = Flap Override Toggle
<not> Gnd = Normal
J1-13 GND_DISC_08 Input Mode 6 Low Volume Discrete 6.6.15
Gnd = Low Volume
<not> Gnd = Normal
J1-8 28V_DISC_09 Input Autopilot Engaged Discrete #1 6.6.21
>+17V = Engaged
<+4.4V = Not Engaged
J1-12 GND_DISC_09 Input Terrain Awareness & TCF Inhibit Discrete (Note 2,4) 6.6.20
Gnd = Inhibit
<not> Gnd = Not Inhibit
J1-34 GND_DISC_10 Input Self-Test Discrete (Note 1,4) 6.6.7
Gnd = Self-Test Toggle
<not> Gnd = Normal
J1-67 GND_DISC_14 Input GPWS Inhibit Discrete 6.6.27
Gnd = Inhibit
<not> Gnd = Not Inhibit
J2-31 GND_DISC_15 Input
Steep Approach Discrete #2 (Note 2)
(alternate action)
6.6.25
Gnd = Selected
<not> Gnd = Not Selected
J1-72 MON_OUT_1 Output GPWS INOP Discrete 7.4.3
J1-55 MON_OUT_2 Output
TAD INOP Discrete
Terrain Not Available
7.4.3
J1-78 DISC_OUT_1 Output
GPWS Warning Discrete
Terrain Awareness Caution or Warning
Obstacle Awareness Caution or Warning 7.4.1
7.4.7.1
7.4.7.2
J1-77 DISC_OUT_2 Output GPWS Alert Discrete (Glideslope Only) 7.4.1
J1-76 DISC_OUT_3 Output Glideslope Cancel Discrete 7.4.6
J1-73 DISC_OUT_4 Output Flap Override Discrete 7.4.5
J1-69 DISC_OUT_5 Output Audio On Discrete 7.4.2
J1-54 DISC_OUT_6 Output Terrain Display Select #1 Discrete 7.4.4
J1-51 DISC_OUT_8 Output
Terrain Awareness Caution or Warning
Obstacle Awareness Caution or Warning
7.4.7.3
Gnd = Terrain Pop Up
J1-49 DISC_OUT_9 Output Terrain Display Select #2 Discrete 7.4.4
J1-48 28V_DISC_11 Input Not Defined in this ID (Note 3).
J2-15 28V_DISC_13 Input Not Defined in this ID (Note 3).
J1-50 MON_OUT_3 Output Not Defined in this ID (Note 3).
J1-52 DISC_OUT_7 Output Not Defined in this ID (Note 3).
Configuration Data Possible States State
Lamp Format Type 1,Type 2 Type 1
Flashing Lamps True, False False
Note 1: Provided by Momentary cockpit switch (non-latching)
Note 2: Provided by Alternate cockpit switch (Latching) with guard if inhibiting.
Note 3: This discrete may be used in another category.
Note 4: Function is provided as an OR operation of the physical discrete and the 429 discrete word bit, if configured by the display type.