10.
Circuit Diagrams and PWB Layouts
Extension Board: RS232
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
RX2
T
U
O
_
D
X
R
T
U
O
_
D
X
R
TX2
RX1
TXD_OUT
TXD_IN
RXD_IN
TX2
TX1
RX1
RX2
TX1
+5VS
RXD_OUT
RXD_OUT
TXD_OUT
RXD_INCAT
TXD_INCAT
TXD_OUT
TXD_IN
RXD_IN
TXD_INCAT
RXD_INCAT
RXD_INCAT1
TXD_INCAT1
TXD_INCAT1
RXD_INCAT1
+5VS
1,2,3,4,9,10,11
TX
4
RX
4
RS232_S1 9
RS232_S0 9
SDA_SUB 4,5,9,10,11
SCL_SUB 4,5,9,10,11
SYS_POWERON 4,9,11
STBY
4
MCUVCC
MCUVCC
MCUVCC
+5VS
+5VS
Title :
Size :
Document Number:
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SCH File Name :
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Check:
Approval:
Draw:
No.361,5F.,Fu-Sing 1 Rd.,Gueishan Hsiang, Taoyuan, Taiwan
TechView International Technology Inc.
Tel :+886-3-3287088
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B2A
10.RS232
A4
8
11
Friday, January 09, 2009
<Doc>
Standard Circuit Design
<PCB Name>
<Rev>
Near to J2
L H
TXD
L
RXD
H
Enable
H
H
0
IN-terminal
S0
L
S1
Control
Pins
MODE
L
1
2
NA
OUT-terminal
RXD
TXD
Disable
Disable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
Enable
X
X
X
X
+
C226
10uF/50V
L61
0R/6
J5
4500-E12N
1
2
3
4
5
6
7
8
9
10
11
12
R445
22K/6
C223
0.47uF/6
R4
1
2
N
C
R420
100R/6
R423
100R/6
R417
100R/6
R434
0R/6
R436
100R/6
R415
0R/6
R4
1
1
NC
R405
33R/6
C222
0.1uF/6
R407
33R/6
R425
22K/6
R428
0R/6
R409
100R/6
R419
100R/6
U31
PI5C3253
1OE
1
S1
2
1B4
3
1B3
4
1B2
5
1B1
6
1A
7
GND
8
2A
9
S0
14
2OE
15
VCC
16
2B1
10
2B2
11
2B3
12
2B4
13
C225
0.1uF/6
1
2
R432
100R/6
R438
22K/6
+
C229
10uF/50V
R408
33R/6
R430
100R/6
1
2
R567 0R/6/NC
L62
121A4/8
L58
0R/6
D3
6
E
Z
J
Z
0V800AA/
6/
NC
1
2
R437
100R/6
C224
0.47uF/6
R431
100R/6
1
2
+
C227
10uF/50V
L59
0R/6
L63
121A4/8
R414
100R/6
R568 0R/6/NC
R410
100R/6
D3
5
E
Z
JZ0
V
8
0
0
A
A
/6
/N
C
1
2
C221
0.47uF/6
C230
0.1uF/6
1
2
R416
100R/6
R426
100R/6
U29
SP3243
R2OUTB
20
INVALID
21
GND
25
VCC
26
C1+
28
C1-
24
C2+
1
C2-
2
V+
27
V-
3
FORCEON
23
FORCEOFF
22
R1IN
4
R2IN
5
R3IN
6
R4IN
7
R5IN
8
T1IN
14
T2IN
13
T3IN
12
R1OUT
19
R2OUT
18
R3OUT
17
R4OUT
16
R5OUT
15
T1OUT
9
T2OUT
10
T3OUT
11
R413
100R/6
R429
0R/6
R440
100R/6
D3
7
E
Z
J
Z
0V800AA/
6/
NC
1
2
L64
121A4/8
R427
NC
R439
100R/6
D3
4
E
Z
JZ0
V
8
0
0
A
A
/6
/N
C
1
2
C228
0.1uF/6
R442
100R/6
R441
0R/6
R418
100R/6
R433
100R/6/NC
U30
PI5C3253
1OE
1
S1
2
1B4
3
1B3
4
1B2
5
1B1
6
1A
7
GND
8
2A
9
S0
14
2OE
15
VCC
16
2B1
10
2B2
11
2B3
12
2B4
13
L60
0R/6
R444
100R/6
R566
33R/6/NC
R424
0R/6
R422
0R/6
R443
0R/6
R421
100R/6
R406
33R/6
R435
100R/6
J4
TEKCON_1297_000_410_52_18P
13
17
12
16
11
15
10
1
6
2
7
3
8
4
5
9
14
18
G1
G3
G2
G4
R565
33R/6/NC
1
8
4
3
0_52
8
_090204.ep
s
090204