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BC82
SCD047U25V3KX
RS232_28
RS232_24
BC49
RS232_1
SCD33U16V3ZY
RS232_2
20
SOUT1#
20
RTS1#
20
DTR1#
19
COM1_RI
20
DSR1#
20
RI1#
20,22
CTS1#
20
SIN1
20
DCD1#
F
O
4
3
2
1
1
R
RN29
R54
C
SRN10K
10KR3
E
O
2
N
5 6 7 8
1
+5V
2
+5V
Serial port
PRI1#
PDTR1#
PCTS1#
PSOUT1#
PRTS1#
PSIN1
PDSR1#
PDCD1#
BC26
BC28
BC27
SC680P
SC680P
SC680P
+5V
BC256
SCD1U
U16
28
26
C1+
VCC
24
27
RS232_27
C1-
V+
1
3
RS232_3
C2+
V-
2
C2-
14
9
PSOUT1#
T1IN
T1OUT
13
10
PRTS1#
T2IN
T2OUT
12
11
PDTR1#
T3IN
T3OUT
20
R2OUTB
19
4
PDSR1#
R1OUT
R1IN
18
5
PRI1#
R2OUT
R2IN
17
6
PCTS1#
R3OUT
R3IN
16
7
PSIN1
R4OUT
R4IN
15
8
PDCD1#
R5OUT
R5IN
23
FORCEON
22
FORCEOFF#
21
25
INVALID#
GND
MAX3243
R53
100KR3
BC25
BC24
BC29
BC31
SC680P
SC680P
SC680P
SC680P
BC81
SCD33U16V3ZY
BC50
SCD33U16V3ZY
CN4
10
5
(Top View)
9
4
8
3
7
2
6
1
11
RS232-9-4-D
BC32
SC680P
Wide GND line
Title
Size
Document Number
A
Date:
March 1, 1998
Acer Inc.
365
Serial port
REV
97160-1, SERIAL
V15
Sheet
21
of
28
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