Garmin GPS 400W Installation Manual page 56

Pin
Standard Function [1]
40 LIGHTING BUS LO
41 GPS RS-232 OUT 3
42 GPS RS-232 IN 3
43 MAIN OBI CLOCK
44 MAIN OBI DATA
45 MAIN OBI SYNC
46 GPS ARINC 429 OUT A
47 GPS ARINC 429 OUT B
48 GPS ARINC 429 IN 1 A
49 GPS ARINC 429 IN 1 B
50 GPS ARINC 429 IN 2 A
51 GPS ARINC 429 IN 2 B
52 RESERVED
53 RESERVED
54 GPS RS-232 OUT 4
55 GPS RS-232 IN 4
56 GPS RS-232 OUT 1
57 GPS RS-232 IN 1
58 GPS RS-232 OUT 2
59 GPS RS-232 IN 2
60 ALTITUDE COMMON (GROUND)
61 ALTITUDE C4 [2]
62 ALTITUDE C2 [2]
63 ALTITUDE C1 [2]
64 ALTITUDE B4 [2]
65 ALTITUDE B2 [2]
66 ALTITUDE B1 [2]
67 ALTITUDE A4 [2]
68 ALTITUDE A2 [2]
69 ALTITUDE A1 [2]
70 ALTITUDE D4 [2]
71 OBS MODE SELECT
72 AIRCRAFT POWER 2
73 CDI SOURCE SELECT
74 COM REMOTE RECALL
75 DEMO MODE SELECT
76 RESERVED
77 AIRCRAFT GROUND
78 AIRCRAFT GROUND
[1] When the airframe is configured for helicopter (see Section 5.3.3) and HTAWS is enabled, the
alternate functions are available, and the standard I/O functions on those pins are not available.
[2] The altitude input is not available when the airframe is configured for helicopter.
[3] When the airframe is configured for helicopter, the Air/Ground input is available and can be
enabled or disabled. See Section 5.3.3.
Page 4-2
Rev. G
Pin Name
Alternate Function [1]
RESERVED
HTAWS AUDIO ACTIVE
RESERVED
REDUCED PROTECTION (RP MODE)
AURAL SUPPRESSION
TERRAIN INHIBIT
HTAWS AUDIO INHIBIT
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
AIR/GROUND [3]
GNS 400W Series Installation Manual
I/O
In
Out
In
Out
Out
Out
Out
Out
In
In
In
In
--
--
Out
In
Out
In
Out
In
Out
In
In
In
In
In
In
In
In
In
In
In
In
In
In
In
--
--
--
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