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Schematic Diagrams
LPT/ COM PORT CON/ Thermistor
Sheet 23 of 40
(22)
(22)
LPT/ COM PORT
(22)
(22)
CON/ Thermistor
(22)
(22)
(22)
(22)
(22)
PD[0..7]
B - 24 LPT/ COM PORT CON/ Thermistor
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R1
0(R)
VDD5
C3
R2
0
+5V
0.1UF
U40
28
27
C1+
V+
C5
0.1UF(K%)
24
3
C1-
V-
C16
C4
1
C2+
C13
0.1UF(K%)
0.1UF(K%)
0.1UF(K%)
2
C2-
SOUTA
14
9
SOUTA
RTSA#
T1IN
T1OUT
13
10
RTSA#
DTRA
T2IN
T2OUT
12
11
DTRA
T3IN
T3OUT
COM1RI
20
T
DSRA#
R2OUTB
19
4
DSRA#
RIA#
R1OUT
R1IN
18
5
RIA#
CTSA#
R2OUT
R2IN
17
6
CTSA#
SINA
R3OUT
R3IN
16
7
SINA
DCDA#
R4OUT
R4IN
DCDA#
15
8
R5OUT
R5IN
23
FORCEON
VDD5
R4
100K(R)
22
/FORCEOFF
25
GND
R3
100K
21
+5V
T
/INVALID
MAX3243
PD[0..7]
RN34
BK32164S471
PD3
C_PD3
C_PD1
4
5
PD2
C_PD2
C_PINIT#
3
6
C_PINIT#
C_PD2
2
7
PD1
C_PD1
C_PD3
1
8
PD7
C_PD7
C_PD4
4
5
PD6
C_PD6
C_PD5
3
6
PD5
C_PD5
C_PD6
2
7
PD4
C_PD4
C_PD7
1
8
PINIT#
RN33
BK32164S471
(22)
PINIT#
CP4
8P4C-180P
CP5
8P4C-180P
RN32
BK32164S471
PSLCT
C_PSLCT
C_PACK#
4
5
(22)
PSLCT
PPE
C_PPE
C_PBUSY
3
6
(22)
PPE
PBUSY
C_PBUSY
C_PPE
2
7
(22)
PBUSY
PACK#
C_PACK#
C_PSLCT
1
8
(22)
PACK#
PPERR#
C_PPERR#
C_PSTB#
4
5
(22)
PPERR#
PD0
C_PD0
C_PATFD#
3
6
PATFD#
C_PATFD#
C_PD0
2
7
(22)
PATFD#
PSTB#
C_PSTB#
C_PPERR#
1
8
(22)
PSTB#
PSLIN#
(22)
PSLIN#
RN35
BK32164S471
VL
R559
C828
design value
--->
1.37K 1%
0.1U
depends on the
temperature
JRt
1
Thermistor--->
NTC
2
ACES-85204-2P
JCOM1
12
RN36
5
1
8
9
2
7
4
3
6
8
4
5
3
7
FCA3216K4-221
2
6
RN37
1
1
8
13
2
7
3
6
4
5
COM1_DB9
FCA3216K4-221
CP6
8P4C-180P
CP1
8P4C-180P
CP3
8P4C-180P
1
14
2
15
3
16
4
17
5
18
C364
6
CP2
180P
19
8P4C-180P
7
20
8
21
9
22
10
23
11
24
12
25
13
R5
FCM1608K221
PRT_PORT
R555
470K
R560
100K 1%
R153
R550
U9A
Normal : 0
3
10K
10K
+
1
Active : 1
2
-
Shutdown_stb_power (32)
LM358
D10
R554
C816
F01J2E
100K 1%
0.1U
Q52
C802
R152
0
G
2N7002
0.1U
D11
F01J2E(R)
H8_RST#
H8_RST# (24)
VDD3
VDD3
(3,11,12,14,16,18,21,24,26,30,31,32,33,34,35)
VDD5
VDD5
(13,14,16,18,24,26,27,32)
+5V
+5V
(18,21,24,28,32,33)
+5V
JPRT1
29
RP10
PD1
1
10
PD0
PINIT#
1
10
2
9
PATFD#
2
9
PD2
3
8
PSTB#
3
8
PD3
4
7
4
7
PSLIN#
5
6
5
6
10P8R-4.7K
PPERR#
R305
2K
+5V
RP9
PD7
1
10
PD6
1
10
PACK#
2
9
PD5
2
9
PBUSY
3
8
PD4
3
8
PPE
4
7
4
7
PSLCT
5
6
5
6
10P8R-4.7K
28
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