Chapter 2 Installation 13
RS-232 connector (CN3/COM1)
The following table shows the pin assignments for the card's RS-
232 port:
RS-232 connector (CN3/COM1)
Pin
Signal
1
DCD
2
DSR
3
RX
4
RTS
5
TX
6
CTS
7
DTR
8
RI
9
GND
10
NC
RS-232/422/485 connector (CN8/COM2)
RS-232/422/485 connector (CN8/COM2)
Pin
Signal
1
DCD
2
DSR
3
RX
4
RTS
5
TX
6
CTS
7
DTR
8
RI
9
GND
10
NC
11
12
B485TXD-
13
14
B422RXD-