110
NX-820
SCHEMATIC DIAGRAM /
原理图
X57-824 6/10
TX-RX UNIT (X57-8240-13)
Z
AA
AB
AC
AD
/IGN
DC Switch(IGN)
DC Switch
(Horn Alert)
DC Switch(Horn Alert)
RXD_FNC2
/INT15P
CTS0
SB
I2CDT
I2CCK
33M
F1CNT
MBL
BLC
BLED
F2CNT
F34CNT
F2CNT
F1CNT
50C
50C
50MC
50MC
50MC
50M
RTS0
5V_TXD2
G_RXD2
RXD2
TXD0
RXD0
DEO_AFO
TXD_FNC1
RTS_FNC3
DI_MI2
F34CNT
F34CNT
I C 5 1 6
A D M 2 0 2 E A R N Z
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
T2oUT
8
R2IN
9 R2oUT
10 T2IN
11 T1IN
12 R1oUT
13 R1IN
14 T1oUT
15 GND
16 VCC
.
IC512
TC7WBD125AFK
1
2
3
4
oE1
A1
B2
GND
5
A 2
6
B 1
7
o E 2
8
VCC
I C 5 1 3
T C 7 W T 1 2 6 F U - F
1 G 1
2 A 1
3 Y 2
4 GND
5
A 2
6
Y 1
7
G 2
8
VCC
I C 5 1 4
T C 7 W H 1 2 6 F U - F
1
2
3
4
G 1
A 1
Y 2
GND
5
A2
6
Y1
7
G2
8
VCC
.
D506
MC2850
.
D509
MC2850
.
D508
MC2850
.
D505
MC2850
.
D510
MC2850
.
D507
MC2850
D 5 0 4
D B 2 S 3 1 0
.
I C 5 1 5
P C A 9 5 3 5 B S
1
Io0.0
2
Io0.1
3
Io0.2
4
Io0.3
5
Io0.4
6
Io0.5
7
Io0.6
8
Io0.7
9
VSS
1 0
Io1.0
1 1
Io1.1
1 2
Io1.2
13
Io1.3
14
Io1.4
15
Io1.5
16
Io1.6
17
Io1.7
18
A0
1 9
S C L
2 0
S D A
2 1
V D D
2 2
I N T
2 3
A 1
2 4
A 2
.
J 5 0 1
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
.
CP704
100kX4
.
CP703
100kX4
.
C P 7 0 5
100kX2
.
C P 7 0 6
100kX2
.
D 5 1 2
D B 2 S 3 1 0
.
CP707
1kX4
.
D 5 1 3
D B 2 S 3 1 0
.
D 6 0 1
D B 2 S 3 1 0
C N 7 0 5
Q 5 0 2
L T C 0 1 4 T E B F S 8
.
Q 5 0 4
L T C 0 1 4 T E B F S 8
C N 7 0 7
Q 5 0 3
MTM981400BF
6
1
2
3
5
4
7
8
C626
0.01u
.
C646
100p
.
C645
0.01u
.
C622
0.01u
.
C625
0.1u
C 6 3 7
1 0 0 p
C 6 4 3
0 . 0 2 2 u
C 6 4 1
1 0 0 p
C623
0.01u
C624
0.01u
C627
1 u
25
C628
1 u 25
C 6 2 9
1 u 25
C 6 3 0
1 u 25
C 6 4 4
1 0 0 p
C 6 4 0
1 0 0 p
C 6 4 2
1 0 0 p
C 6 3 9
1 0 0 p
C 6 3 5
1 0 0 p
.
C633
100p
C 6 3 2
1 0 0 0 p
C 6 3 4
1 0 0 p
C 6 3 6
1 0 0 p
C 6 3 8
1 0 0 p
.
R 6 5 9
0
.
R673
100k
.
R674
1M
.
R627 6.8k
.
R628 6.8k
.
R 6 5 8
0
R620
10k
100k
R624
R623
100k
R622
100k
R 6 2 6
1 0 0
R629
100k
R621
100k
R631
100k
R 6 3 4
1 0 0
R 6 6 8
4 7 0
R 6 7 1
1 0 0
R 6 6 7
1 0 0
.
R 6 6 4
0
.
R 6 6 2
0
R 6 7 2
4 7 0
R 6 6 9
1 0 0
R 6 7 0
1 0 0
.
R635
0
.
R632
0
.
R 6 4 1
0
.
R 6 4 3
0
.
R 6 3 6
4 7 0 k
.
R638
1 k
.
R637
1 k
.
R639
470
R 6 6 1
4 7 k
R 6 5 7
4.7k
C N 7 2 0
D_RXD2
.
C660
100p
.
F 5 0 1
.
R 5 0 6
0
TXD
RXD
D-Sub15
S B
IGN
S P 2
S P 2
D A T O
D A T O
D A T A I
D A T A I
F N C 1
F N C 2
F N C 3
FNC4
F N C 5
F N C 6
5 0 M C
HR1
HR2
G N D
T X D 0
5
6
9
1 1
1 3
7
15
Leval Shift
Dual BUS Buffer(FNC3/FUNC1)
Dual BUS Buffer
(FNC2/FUNC4)
I/O Expander
RS-232C Driver
Reverse
Current Provention
D505-510
Line Protection
Reverse
Current
Prevention
D512,513
Line Protection
M E
S P +
S P -
M I C
M E
S P +
S P -
M I C
B-BUS
B-BUS
B-BUS
B-BUS
AC
C
.
R666
6
R665
.
10
.
R660
14
12
.
R663
.
R633
8
.
R630
16
.
R642
.
R640
4
2
RXD0
9.9V
9.9V
Summary of Contents for NEXEDGE NX-820
Page 122: ...NX 820 ...