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CN6: COM6 Connector (5x2 Header)
PIN Description PIN Description
1
DCD6
3
RXD6
5
TXD6
7
DTR6
9
GND
CN7: COM7 Connector (5x2 Header)
PIN Description PIN Description
1
DCD7
3
RXD7
5
TXD7
DTR7
7
9
GND
CN8: COM8 Connector (5x2 Header)
PIN Description PIN Description
1
DCD8
3
RXD8
5
TXD8
7
DTR8
9
GND
CN10: RS-422/485 Connector (5x2 Header, COM3 &COM4)
PIN Description PIN Description
1
-TX1
3
+RX1
5
GND
7
-TX2
9
+TX2
2
DSR6
DCD6
4
RTX6
RXD6
6
CTX6
8
RI6
TXD6
10
VCC
DTR6
GND
2
DSR7
DCD7
4
RTX7
RXD7
6
CTX7
RI7
8
TXD7
10
VCC
DTR7
GND
2
DSR8
DCD8
4
RTX8
RXD8
6
CTX8
8
RI8
TXD8
10
VCC
DTR8
GND
2
+TX1
-TX1
4
-RX1
6
N/C
+RX1
8
+TX2
GND
10
-RX2
-TX2
+RX2
1
2
DSR6
3
4
RTX6
5
6
CTX6
7
8
RI6
9
10
VCC
1
2
DSR7
3
4
RTX7
5
6
CTX7
7
8
RI7
9
10
VCC
1
2
DSR8
3
4
RTX8
5
6
CTX8
7
8
RI8
9
10
VCC
1
2
+TX1
3
4
-RX1
5
6
N/C
7
8
+TX2
9
10
-RX2
17
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