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The following table shows the pin assignments for the card's
RS-232 and RS-422/485 (COMB) serial port connectors:
Pin
1
2
3
4
5
6
7
8
9
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Signal
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
Pin
Signal
1
TX- (DTE)
2
TX+ (DTE)
3
RX+ (DTE)
4
RX- (DTE)
5
Ground
6
RTS-
7
RTS+
8
CTS-
9
CTS-
Chapter 2 Installation
27
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