LOCK DIAGRAM
(블럭도)
6
1
20
TX
+5
V
PA
R
A
LL
E
L
TO
S
E
R
IA
L
C
O
N
V
E
R
TE
R
D
AT
A
O
U
T
TO
R
E
LA
Y
G
R
O
U
P
E
/ M
A
LL
A
LL
R
E
G
TX
E
/M
A
LL
O
U
T
+2
4V
G
N
D
E
/M
A
LL
O
U
T
+2
4V
G
N
D
TO
J
E
U
-2
11
A
E
X
TE
N
S
IO
N
1
FI
R
E
D
E
TE
C
TO
R
IN
P
U
TS
2
19
20
IN
O
U
T
E
X
TE
N
S
IO
N
+5
V
D
C
/0
.2
5A
O
U
T
E
/ M
A
LL
O
U
T
+5
V
O
U
T
O
U
T