Fu
ll S
ta
ck
Drawin
g
A
pollo
G
X
50
/60
/6
5 I
nsta
llatio
n Ma
nu
al
75
OB
S_
C{R L
o
}
OB
S_
D{S1
}
O
B
S
_
E{S3
}
24
7
26
25
Rslvr{H}
Rslvr{C}
Rslvr{D}
Rslvr{E
}
Rslvr{F}
Rslvr{G
}
MD20
0-30
6
N
A
V+
Val
id
(
F
la
g
)
NA
V- V
a
lid (Fla
g)
+T
O (
F
la
g
)
+
F
rom (Fla
g
)
CDI
+
L
CDI
+
R
+
N
AV
Fla
g
-NA
V F
la
g
+T
O
F
lag
+
F
R Fla
g
CDI
L
e
ft
CDI
Right
10
29
12
11
14
13
Ba
ck Crse
IL
S En
er
g
ize
15
33
BC
An
n.
A
n
n.
Pwr
- 1
4
V
2
8
V
Di
mme
r*
14V
D
im
m
e
r
Gr
ou
nd
To
Au
to-P
ilo
t
H
ig
h
S
ens
e
OB
S_
F{S4
}
OB
S_
G{S
2
}
O
B
S
_H{R Hi}
16
34
A
n
n.
Pwr
- 2
8
V
NA
V An
n
.
SL3
0
#1
G
S
+ Va
lid
(Fl
a
g)
GS
- Va
lid
(Fl
a
g)
GS
I+ U
p
GS
I+
Do
wn
28
32
30
31
GX5
0
NA
V Va
lid +
(Fla
g)
NAV
V
a
lid - (Fla
g
)
TO+
(Flag)
Fro
m
+ (Fla
g)
G
S
Va
lid
+ (F
la
g)
G
S
V
a
lid -
(Fla
g)
GS
I+
Up
G
S
I+
Do
wn
22
23
17
16
40
41
34
35
CDI
+ L
CDI
+ R
28
29
20
21
15
14
38
39
32
33
AC
U
26
27
+
V
e
rt (GS
)
Flag
-V
ert
(G
S) Fla
g
+U
P
+
D
OW
N
GP
S An
n.
S
p
are
(G
PS
)
Spa
re (Nav
)
6
1
62
IL
S E
n
ergize
HI
S
e
n
s
e
57
58
37
-P
in
C
o
nnec
to
r
60
S
p
are
(Common
)
VDI
+
UP
V
D
I-DN
VD
I Val
id
(
+
)
GN
D
ACTI
VE
AP
PR
C
H
Hold
MS
G
Ho
ld Se
le
ct
PTK
CDI
+L
CDI
+R
+F
ro
m
+To
NA
V + Va
lid
Rx
D2
30
31
28
29
15
33
34
16
26
17
14
13
11
12
10
20
21
S
eria
l G
N
D
36
37
25
12
9
10
13
11
30
31
18
19
42
8
24
VDI
+
UP
VDI
-DN
VDI
Va
lid
(+)
VDI
/NAV
V
a
lid(-)
Act
iv
e
Approa
ch
OB
S/Ho
ld
MS
G
GP
S/S
EQ
PTK
CDI
+
L
CDI
+
R
Fr
o
m
+
To+
NAV
Va
lid (+)
MX2
0
Por
t 1 GN
D
Por
t 1 I
N
23
4
SL7
0
Rx
D
Se
ria
l GND
Tx
D
C4
C2
C1
B4
B2
B1
A4
A2
A1
D4
GND
Gray
Code
Altit
ude
Input
A
ltitu
d
e
En
c
ode
r
or Seri
al
izer
T
X
R
S
232
GN
D
4
3
5
Al
ti
tu
d
e
En
cod
e
r
o
r Di
gi
ti
zer
15
34
32
33
12
31
13
35
30
16
14
O
n
ly
W
h
en
Us
in
g G
ray
Co
de
Altitu
de
I
n
pu
t
Co
m
2
Au
dio Hi
Co
m M
ic 2
Au
d
io
Hi
Co
m
2 Mic Ke
y
SL
15
37-
P
in C
onn
ec
to
r
No
te
12
No
te
12
No
te
12
No
te
2
No
te
2
No
te
3
No
te
3
No
te
5
N
o
te
6
S
eria
l G
N
D
Tx
D1
A
u
dio
G
n
d
Na
v Au
di
o
O
u
t
5
23
20
3
No
te
7
No
te
11
No
te
7
Mi
c
2
Mi
c
1
T
xKe
y
In
te
rc
o
m
Sel
e
c
t
Sp
e
a
k
e
r
14
13
15
8
7
4
12
6
H
ead
p
h
o
n
e
Au
dio
GND
Mi
c
GN
D
15-
Pi
n
C
o
n
nec
to
r
10
H
V
1
9
P
R
12
NAV
1
Au
dio
GN
D
No
te
2
No
te
3
No
te
8
No
te
2
No
te
3
1
2
3
6
5
4
12
11
10
9
8
7
22
23
19
18
21
A
nnun
c
iat
or
Ba
ckligh
t Dimmer
14
V
S
y
s
te
ms
Ba
ckligh
t Dimmer
28
V
S
y
s
te
ms
(GND if
14
V)
20
A
nnun
c
iat
or
Pow
e
r
24
* Gr
o
und
f
o
r 14V
l
ig
h
ti
ng
16
15
14
13
17
+1
3.
8 V
D
C
*
*
+
2
8
V
DC **
**Appropria
te
A
ircra
ft
B
u
s
Co
m
1
Au
dio Hi
Co
m M
ic 1
Au
d
io
Hi
Co
m
1 Mic Ke
y
25-
P
in C
onn
ec
to
r
Po
we
r
+
Po
we
r G
N
D
1
2
Av
io
ni
c
s
P
owe
r
+
-
2A
Por
t 3 GN
D
Por
t 3 I
N
25
7
Av
io
n
ic
s
P
o
wer
+
-
P
o
wer +
Po
we
r G
rou
n
d
1
2
2A
Av
io
ni
c
s
P
owe
r
+
-
Po
we
r +
P
owe
r G
ro
u
n
d
1
2
2A
1
9
Po
we
r +
Po
we
r G
N
D
5A
+
-
78
1
Po
we
r (+
VDC)
GN
D
2A
+
-
16
20
P
owe
r +
Po
we
r GN
D
5A
(1
4
VDC)
3A
(2
8
VDC)
+
A/
C P
owe
r
A
v
ioni
c
s
Po
wer
No
te
10
No
te
11
Sp
eak
er
H
i
Spe
a
k
er Lo
W
22
No
te
3
S
im Se
lect
GN
D
7
25
NOTE
S:
1.
T
h
is
dia
g
ra
m
is pro
v
ide
d
to
s
h
o
w
t
h
e
int
e
rc
o
nne
ct
io
n
be
tw
e
e
n
UP
S
AT
units.
Full w
iring
dia
g
ra
m
s
f
o
r e
a
c
h unit
a
re
pro
v
id
e
d
in t
h
e
a
ppro
p
ria
te
ins
ta
lla
tio
n
m
a
nua
ls
.
Re
fe
r to
a
ll do
cum
e
nta
tio
n to
e
n
sure
succ
e
s
sf
ul
ins
ta
lla
tio
n
.
2.
Co
nne
ct
c
a
ble
shie
ld
s t
o
t
h
e
m
o
unt
ing fra
m
e
:
pigta
ils <
1.25 inc
h
e
s
.
3.
Co
nne
ct
shie
lds
to
cha
s
sis
gro
u
n
d
a
t bo
th e
nds
o
f
e
a
c
h s
h
ie
lde
d
ca
ble
.
4.
Re
fe
re
nc
e
t
h
e
ACU
ins
ta
lla
tio
n
m
a
nua
l if
ins
ta
lling NA
V/G
P
S
so
u
rc
e
se
le
ct
o
r.
5.
I
L
S a
n
d
s
p
a
re
a
n
nunc
ia
to
r
re
la
ys
a
re
o
n
ly
a
v
a
ila
ble
in
the
M
o
d
A
A
CU.
6
.
T
e
rm
in
at
e sh
ie
ld
t
o
w
it
h
in
2
i
n
c
h
es of c
o
n
n
e
c
tor
. H
e
at
s
h
ri
n
k
over
ed
g
e
s
.
7.
E
ithe
r
a
s
e
ria
l
o
r pa
ra
lle
l a
lt
itude
e
n
c
o
de
r
m
a
y be
in
sta
lle
d.
A
se
ri
a
l
ve
rs
io
n is
t
h
e
pe
rfe
rre
d o
p
tio
n
. In this
dia
g
ra
m
,
th
e
pa
ra
lle
l
ins
ta
lla
tio
n
is ide
n
ti
fi
e
d
by
.
8.
T
h
e
a
udio
gro
und a
nd
m
ic
gro
und c
o
nne
c
tio
ns m
a
y use
a
co
m
m
o
n
po
int
on
t
h
e
au
d
io p
a
n
e
l.
9.
No
t
a
ll a
udio
pa
ne
l
co
nne
c
tio
ns
a
re
sho
w
n
o
n
t
h
is
dr
a
w
ing due
to
the
va
ria
n
ce
s
in
insta
lla
ti
o
n
s
. Co
ns
ult
t
h
e
SL15 ins
ta
lla
ti
o
n
m
a
nu
a
l.
10.
I
f
the
insta
lla
ti
o
n
is uti
liz
ing gra
y
c
o
d
e
a
ltit
ude
input
a
nd t
h
e
SL70
is
be
ing
u
s
ed
a
s
a ser
ial
iz
er
,
d
o
n
o
t i
n
st
a
ll
t
h
e al
ti
tu
d
e
en
c
o
d
e
r
or
ser
ial
iz
er sh
ow
n
.
11.
A
ltit
ude
e
n
co
de
rs a
re
no
t UPS
A
v
ia
ti
o
n
Te
c
hno
lo
g
ie
s-pro
v
ide
d e
quipm
e
n
t.
R
e
fer
t
o
t
h
e ap
p
rop
ri
at
e en
c
o
d
e
r
in
st
al
la
ti
on
m
a
n
u
a
l t
o
en
su
re
p
ro
p
er
po
w
e
r a
nd
signa
l co
nne
c
tio
ns.
12.
Use
sh
ie
lde
d
ca
ble
fo
r Re
so
lv
e
r signa
ls
.
13.
S
im
u
la
to
r
m
o
de
i
f le
ft
o
p
e
n
. Co
nne
c
t
p
in
7 t
o
gro
und fo
r no
rm
a
l
o
p
e
ra
tio
n.
14.
S
L30 #1 -
Int
e
rf
a
c
e
s
t
o
t
h
e
GX
50 to
o
b
ta
in
d
is
ta
n
c
e
,
s
p
e
e
d
,
a
nd t
im
e
fo
r t
h
e
tu
n
e
d
N
a
v
a
id
.
In
te
rf
a
c
e
s
a
n
d
d
is
p
la
y
s
d
a
ta
o
n
t
h
e
M
X
2
0
.
S
L30 #2 -T
he
DST
(dista
nce
, spe
e
d,
t
im
e
)
d
is
p
la
y
m
u
st
be
dis
a
ble
d
(a
va
ila
b
le
in S
W
V
e
r
1.2,
a
nd la
te
r) t
o
pre
v
e
n
t m
isle
a
d
ing DST
da
ta
.
15.
Use
c
a
ut
io
n w
h
e
n
a
dding
R
S
-232 de
v
ic
e
s
. F
a
n-
o
u
t sho
u
ld no
t
be
m
o
re
tha
n
thre
e
de
vice
s. T
h
e
MX20 P
o
rt
3 o
u
tput
c
a
n be
use
d
t
o
e
c
ho
Na
v
/Co
m
m
re
m
o
te
f
re
que
ncy
da
ta
tha
t is t
ra
n
s
m
it
te
d
fr
o
m
the
GX,
w
h
ic
h re
duce
s
t
h
e
GX
fa
n-o
u
t.
Ho
w
e
ve
r,
the
MX20 m
u
s
t be
o
p
e
ra
ting be
fo
re
the
e
c
ho
e
d
da
ta
ca
n
pa
ss
thro
ugh t
h
e
MX20.
37-
P
in C
onn
ec
to
r
OB
S_
C{R L
o
}
OB
S_
D{S1
}
O
B
S
_
E{S3
}
24
7
26
25
NAV
+
Va
lid
(Fla
g)
NA
V- V
a
lid (Fla
g)
+
T
O (Fla
g)
+
F
rom (Fla
g)
CDI
+
L
CDI
+
R
10
29
12
11
14
13
Ba
ck Crse
IL
S En
er
g
iz
e
15
33
OB
S_
F{S4
}
OB
S_
G{S
2
}
OB
S_
H{R Hi}
16
34
S
L
30
#2
G
S
+ Va
lid
(Fl
a
g)
GS
- Va
lid
(Fl
a
g)
GS
I+ U
p
GS
I+
Do
wn
28
32
30
31
No
te
1
No
te
1
No
te
1
No
te
2
No
te
3
A
u
dio
G
n
d
Na
v Au
di
o
O
u
t
2
3
20
Mi
c
2
Mi
c
1
T
xKe
y
In
te
rc
o
m
Sel
e
c
t
Sp
e
a
k
e
r
14
13
15
8
7
4
12
6
H
ead
p
hone
Aud
io GN
D
Mi
c
GN
D
15-
P
in
C
onne
ct
or
No
te
2
No
te
3
No
te
8
No
te
2
No
te
3
Av
io
ni
c
s
P
owe
r
+
-
Po
we
r +
P
owe
r G
ro
u
n
d
1
2
2A
Rslvr{H}
Rslvr{C}
Rslvr{D}
Rslvr{E}
Rslvr{F}
Rslvr{G}
MD2
00-30
6
+
N
AV
F
lag
-NAV
Fla
g
+TO
Fla
g
+FR Fl
a
g
CDI
Le
ft
CDI
Ri
gh
t
BC An
n
.
An
n
. Pwr
- 14
V
28
V D
im
m
er
*
14
V D
im
m
er
G
round
An
n
. Pwr
- 28
V
N
A
V An
n.
+V
e
rt (G
S) Fla
g
-Ve
rt (GS
)
Flag
+UP
+DO
W
N
GP
S An
n
.
Not
e
2
Not
e
3
1
2
3
6
5
4
12
11
10
9
8
7
22
23
19
18
21
B
a
c
k
ligh
t Dim
m
e
r
1
4
V Sy
st
e
m
s
20
24
* Gr
ou
nd
fo
r
1
4
V l
ig
ht
in
g
16
15
14
13
17
**A
p
p
ro
pri
a
te
Aircra
ft Bu
s
25-
P
in
Co
nn
e
c
to
r
1
9
Po
we
r +
Po
we
r G
N
D
5A
+
-
Avio
nics
Po
we
r
B
o
tt
o
m
C
onne
c
tor
J
1
Not
e 8
Not
e 9
20
2
A
(1
4
VDC)
3
A
(2
8
VDC)
11-
33
V
D
C
Po
we
r
A
nnu
nc
ia
to
r
+
1
3
.8 VDC **
A
nnun
c
iat
or
Pow
e
r
+
2
8 VDC **
B
a
c
k
ligh
t Dim
m
e
r
2
8
V Sy
st
e
m
s
(G
ND if
14
V
)
NA
V 2 Au
di
o
1
3
Rx
D1
4
Rx
D1
4
Se
rial GND
3
Tx
D1
5
Se
rial GND
3
N
o
te 13
Ty
p
ica
l Full
S
ta
c
k
Int
e
rco
n
n
e
c
ti
o
n
D
ia
g
ram w
it
h
T
w
o SL3
0
s
9/18/03
S
C
H
0103
Dra
wing No
.
Re
visio
n
Re
visio
n
Dat
e
E
2
345 T
u
rn
e
r R
d
,
S
E
Sa
le
m
, OR
9730
2
Ph
one
: 503
-581-
8
101
www.garmin
at
.co
m
Rev
Rev Date
Reference
--
A
4/16/01
Serial port change to support new SL30 Interface and
GPS roll steering output.
Initial distribution
Tx
D2
2
2
Roll S
te
e
ring
Ou
tpu
t
Rx
D1
4
5/8/01
Wiring and note changes for GX-SL30 interface
pursuant to SL30 SW Ver 1.2
Por
t 3 OU
T
No
te
1
5
B
6
2
P
o
wer GND
-
1
P
owe
r +
C
4/19/02
Added Heater power and ground wire connections
for the MX20
D
9/4/02
Changed MX20 fuse to circuit breaker and its
current rating
9/18/03
E
Company name change.
F
igur
e 2
1
- F
ull
St
ac
k In
te
rc
onnec
t
D
ra
w
ing
Summary of Contents for Apollo GX50
Page 4: ...NOTES...
Page 8: ...Table of Contents iv Apollo GX50 60 65 Installation Manual NOTES...
Page 30: ...Installation 22 Apollo GX50 60 65 Installation Manual Figure 12 RS 232 Serial Connections...
Page 31: ...Installation Apollo GX50 60 65 Installation Manual 23 Figure 13 GX60 65 Comm Wiring Diagram...
Page 40: ...Installation 32 Apollo GX50 60 65 Installation Manual NOTES...
Page 50: ...Limitations 42 Apollo GX50 60 65 Installation Manual NOTES...
Page 54: ...Periodic Maintenance 46 Apollo GX50 60 65 Installation Manual NOTES...
Page 82: ...Serial Interface Specifications 74 Apollo GX50 60 65 Installation Manual NOTES...
Page 84: ...Full Stack Drawing 76 Apollo GX50 60 65 Installation Manual...
Page 85: ......
Page 86: ......
