Garmin GNC 255 Installation Manual - page 41
190-01182-02
GTR 225/GNC 255 TSO Installation Manual
Rev. B
Page 5-3
5.1.2 P2002 Connector – NAV Board
(View looking at rear of unit, Pin 1 is bottom left)
Pin
Pin Name
I/O
1
VOR/LOC +TO
Out
2
VOR/LOC +FROM
Out
3
VOR/LOC +FLAG
Out
4
VOR/LOC -FLAG
Out
5
VOR/LOC +LEFT
Out
6
VOR/LOC +RIGHT
Out
7
RESERVED
--
8
VOR/LOC COMPOSITE OUT
Out
9
VOR OBS ROTOR C
Out
10
VOR OBS ROTOR H (GND)
--
11
VOR OBS STATOR E (GND)
--
12
VOR OBS STATOR F
In
13
VOR OBS STATOR D
In
14
VOR OBS STATOR G (GND)
--
15
VOR/LOC SUPERFLAG
Out
16
500 Ω VOR/LOC AUDIO OUT HI
Out
17
500 Ω VOR/LOC AUDIO OUT LO
Out
18
SERIAL DME - CLOCK
I/O
19
SERIAL DME - DATA
I/O
20
SERIAL DME - RNAV/CH REQ
In
21
SERIAL DME - RNAV MODE
In
22
AIRCRAFT GND
In
23
VOR/ILS ARINC 429 OUT B
Out
24
VOR/ILS ARINC 429 OUT A
Out
25
VOR OBI CLOCK
Out
26
VOR OBI SYNC
Out
27
VOR OBI DATA
Out
28
VLOC REMOTE TRANSFER
In
29
ILS ENERGIZE
Out
30
SPARE
--
31
SPARE
--
32
GLIDESLOPE +FLAG
Out
33
PAR DME 1 MHZ-D/SERIAL DME ON
Out
34
GLIDESLOPE +UP
Out
35
RESERVED
--
36
RESERVED
--
1
2
3
4
5
6
7
8
9
10
11
13
14
15
16 17
18
19
20
21
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43