COM1 (J44) , COM2 (J45)
COM1
2
10
9
1
1
2
9
10
2
1
1
2
COM2
10
2
1
9
1
10
9
10
9
2
1
2
1
19
20
1
2
User's Manual | RPS101_RPS103
1
10
10
1
1
1
1
2
11
1
1
1
1
1
2
1
1
1
2
1
14
5
6
10
1
39
1
2
40
1
HARDWARE INSTALLATION
RS422 Full
Pin
RS232
RS485
Duplex
1
DCD-
TXD-
Data-
2
RD
TXD+
Data+
3
TD
RXD+
N.C
4
DTR-
RXD-
N.C
5
GND
GND
GND
6
DSR-
N.C
N.C
7
RTS-
N.C
N.C
8
CTS-
N.C
N.C
9
RI-
N.C
N.C
10
N.C
N.C
N.C
Chapter 2
23
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