Honeywell MK VI - Manual (Page 111)

Honeywell
MK VI MK VIII EGPWS Installation Design Guide
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TCAS/TAS Connector
Vendor Model Function PIN #
Honeywell CAS-81, TCAS II,
TPA-81A TA Only
Inhibit Audio RBP-5C
RBP-5D
Collins TTR-920, TCAS II TA Only
Inhibit Audio RBP-5C
RBP-5D
CAS 66, 67 Standby
Inhibit Audio P1A-17
P1A-18
Goodrich*
Skywatch HP (SKY899)
Skywatch (SKY497)
TCAS I (TCAS791/A)
Inhibit Audio
P1-34
P1-32
P1-9
* Interface with the Goodrich Skywatch TAS
requires a +28V pullup resistor in the aircraft
wiring as shown in Figure 3.15-1 below.
A
A
A
BRT / DIM / TEST
(7 places)
Self-Test Discrete Input
J1-14
GPWS
INOP
TERR
FAIL
Momentary
J1-34
J1-78
J1-15
J1-77
J1-72
J1-55
J1-12
J1-76
J1-73
J2-31
G/S Cancel Discrete Input
Terrain Inhibit Discrete Input
GPWS Warning Alert Discrete Output
GPWS Caution Alert Discrete Output
GPWS Inoperative Discrete Output
Terrain Not Available Discrete Output
G/S Canceled Discrete Output G/S
CANCLD
GPWS
FLP OVRD
Momentary
Guarded
ON
Steep Approach Select Discrete Input
Flap Override Discrete Input
Flap Override Discrete Output
A
A
A TERR
INHIB
ON
Alternate
A GPWS
P / CANCEL
Momentary
GPWS
STP APR
ON
Guarded
Momentary *
J1-69
Audio On Discrete Output
TCAS
INHIBIT
Note: All EGPWS Outputs are Ground active and are intended to operate
with a +28V lamp source or +28V pullup external to the EGPWS
EGPWS
Lamps2.vsd
J1-52
Steep Approach Select Discrete Output
PULLUP
P / TEST
* Requires -008
software or later
Optional
+28V pullup
100K
ohm
FIGURE 3.15-1 Example of Light/switch Interface (Lamp Format 2)
3.15.2.11 Terrain Dis play Select #1 & #2 Discrete
Terrain Display Select #1 & #2 discrete (J1-54 & J1-49) will activate after the related pilot has initiated manual
selection of the Terrain Display Select (momentary) discrete #1 or #2 (J1-32 & J1-31, Category 6). This feature
activates a ‘TERR” white lamp located in the cockpit within sight of each pilot. The lamp serves to remind the
flight crew that this function is active. The select switches (J1-32 & J1-31) and the indicator lamps (J1-54 & J1-
49) are commonly combined in switch-lamp assemblies mounted near the displays being selected.