Documentation Number: 3PCI-MIport-4004qsg
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MIport Serial Card Quick Start Guide
RS-232/422/485 DIP Switch Settings
RS-422/485 DIP Switch Settings
CAUTION: Make sure computer is unplugged before installing the card.
Name Direction
(DTE)
DB-9M
Pin
Name
Direction
DB-9M
Pin
DCD Input
1
RD(A)
−
Input 1
RD Input
2
TD(B)
+
Output
2
TD Output
3
TD(A)
−
Output 3
DTR
Output 4 GND
------
5
GND ------
5
RD(B)
+
Input 9
DSR Input
6
RS-422/485 Pinout
RTS Output
7
CTS Input
8
RI Input 9
RS-232 Pinout
