PCI Express Boards
Pin Assignments
7-6
Male DB25 (OPT8B+/ CBL-M68M25x8-100)
Pin
RS-232
2
TxD
3
RxD
4
RTS
5
CTS
6
DSR
7
GND
8
DCD
20
DTR
Female DB25 (OPT8A+/S+)
Pin
RS-232
2
RxD
3
TxD
4
CTS
5
RTS
6
DTR
7
GND
8
DCD
20
DSR
CP-104EL-A
Board Side Pin Assignments-Female DB44
RS-232
Port 1
Port 2
Port 3
Port 4
13
TxD
9
TxD
5
TxD
1
TxD
14
RxD
10
RxD
6
RxD
2
RxD
15
RTS
11
RTS
7
RTS
3
RTS
28
CTS
24
CTS
20
CTS
16
CTS
29
DTR
25
DTR
21
DTR
17
DTR
30
DSR
26
DSR
22
DSR
18
DSR
42
DCD
39
DCD
35
DCD
31
DCD
44
GND
41
GND
37
GND
33
GND
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