Schematic Diagrams
LPT / COM Port CON / Thermistor (71-D90T0-D05) B - 23
B.Schematic Diagrams
LPT / COM Port CON / Thermistor
+5V
+5V
VDD5
+5V
VDD5
+5V
VL
VDD5
VDD3
+5V
CTSA#21
DCDA#21
DSRA#21
DTRA21
RTSA#21
SOUTA21
SINA21
RIA#21
PD[0..7]21
PSLIN#21
PPE21
PSLCT21
PATFD#21
PPERR#21
PBUSY21
PSTB#21
PACK#21
PINIT#21
Shutdown_stb_power 31
H8_RST# 23
VDD5 13,15,17,23,25,26,29,31,32
+5V 12,17,23,27,29,31
VDD3 4,12,13,15,17,23,25,31,32
COM1RI
PPERR#
PSTB#
PATFD#
PD0
PD1
PPE
PSLCT
PBUSY
PACK#
C_PD7
SINA
RIA#
CTSA#
DSRA#
SOUTA
DCDA#
PD7
PD6
PD4
PD5
PD3
PINIT#
PSLIN#
PD2
C_PINIT#
C_PACK#
C_PD5
C_PSTB#
C_PD2
C_PD4
RTSA#
DTRA
PD6
PACK#
PSTB#
PD[0..7]
PD1
PD4
PSLCT
PD0
PBUSY
PD7
PD5
PD3
PPERR#
PPE
PSLIN#
C_PACK#
C_PPERR#
C_PD0
C_PPE
C_PSLCT
C_PATFD#
C_PSTB#
C_PBUSY
C_PPE
C_PATFD#
C_PBUSY
C_PSLCT
C_PPERR#
C_PD4
C_PD5
C_PD1
C_PD7
C_PD3
C_PD6
C_PD2
C_PD1
C_PD6
C_PD3
PATFD#
PD2
C_PD0
PINIT#
C_PINIT#
H8_RST#
R722 0
+
-
U47A
LM358
3
2
1
84
JPRT1
PRT_PORT
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
28
29
RN7 BK32164S471
81
72
63
54
C5
0.1UF(K%)
RP49
10P8R-4.7K
1
2
3
4
5
10
9
8
7
6
1
2
3
4
5
10
9
8
7
6
C1
180P
D45
F01J2E
A C
T
CP3
8P4C-180P
1 8
2 7
3 6
4 5
Q49
2N7002
G
DS
CP2
8P4C-180P
1 8
2 7
3 6
4 5
RN6 BK32164S471
81
72
63
54
JCOM1
COM1_DB9
5
9
4
8
3
7
2
6
1
12
13
RN5 BK32164S471
81
72
63
54
CP1
8P4C-180P
18
27
36
45
CP6
8P4C-180P
18
27
36
45
CP4
8P4C-180P
1 8
2 7
3 6
4 5
T
C300
0.1UF(K%)
R721
100K 1%
R2 100K(R)
C953
0.1U
R717
1.91K 1%
C292
0.1UF
D46
F01J2E(R)
AC
JRt
ACES-85204-2P
1
2
C951
0.1U
RP50
10P8R-4.7K
1
2
3
4
5
10
9
8
7
6
1
2
3
4
5
10
9
8
7
6
C301
0.1UF(K%)
RN10 BK32164S471
81
72
63
54
R1 100K
R233 2K
RN9
FCA3216K4-221
1 8
2 7
3 6
4 5
U21
MAX3243
28
24
1
2
14
13
12
20
19
18
17
16
15
23
22
21
27
3
9
10
11
4
5
6
7
8
25
26
C1+
C1-
C2+
C2-
T1IN
T2IN
T3IN
R2OUTB
R1OUT
R2OUT
R3OUT
R4OUT
R5OUT
FORCEON
/FORCEOFF
/INVALID
V+
V-
T1OUT
T2OUT
T3OUT
R1IN
R2IN
R3IN
R4IN
R5IN
GND
VCC
R232 FCM1608K221
R716 470K
RN8
FCA3216K4-221
1 8
2 7
3 6
4 5
C952
0.1U
R237 0
CP5
8P4C-180P
1 8
2 7
3 6
4 5
R719
10K
R718
100K 1%
R720
10K
C4
0.1UF(K%)
R236 0(R)
Normal : 0
Active : 1
design value
depends on the
temperature
--->Thermistor
--->
NTC
Sheet 22 of 37
LPT / COM Port
CON / Thermistor
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