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Appendix A
A.5
COM 1, 2
T
able A.5: COM 1, 2
Pin
Signal
RS-232
RS-422
RS-485
1
DCD
TX-
DA
T
A-
2R
X
T
X
+
D
A
T
A
+
3
TX
RX+
---
4
DTR
RX-
---
5
GND
GND
---
6
DSR
---
---
7
RTS
---
---
8
CTS
---
---
9
RI
---
---
15
9
6
3
24
78
1
...
...
73
74
75
76
77
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90