Citizen CT-S300

CT-S300 Service Manual
20
6.2 Serial Interface
5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
VC C
VC C
VCC
VCC
VCC
VCC
Size
Scale
CAGE Code
DW G NO
Rev
Sheet
of
1.0
Company Name
Friday, March 14, 2003
11
A3
Japan CBM Corporation
Title
Serial Interface
SERIAL
C7
104
LA1B
72
CN1
DHB-RA30-R131N
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
+
C1
16V100u
D S 1 KSD08H
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
LA2A
81
LA1A
81
R1 47K
CN2
70013-025-03(04)
13
25
12
24
11
23
10
22
9
21
8
20
7
19
6
18
5
17
4
16
3
15
2
14
1
C2
104
LA2B
72
IC 1
SP232ECN
R1IN
13
R2IN
8
T1IN
11
T2IN
10
C+
1
C1-
3
C2+
4
C2-
5
V+
2
V-
6
R1OUT
12
R2OUT
9
T1OUT
14
T2OUT
7
VCC
16
GND
15
C6
104
C3
104
LA1C
63
C10
104
C4
104
C9
104
C5
104
C8
104
LA2C
63
C12
104
IC2
SP232ECN
R1IN
13
R2IN
8
T1IN
11
T2IN
10
C+
1
C1-
3
C2+
4
C2-
5
V+
2
V-
6
R1OUT
12
R2OUT
9
T1OUT
14
T2OUT
7
VCC
16
GND
15
C11
104
LA1D
54
LA2D
54