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PCI Express Board User’s Manual Pin Assignments
5-8
CP-104EL
Board Side Pin Assignments—Female DB44
RS-232
Port 3 Port 4
1
3
5
7
911
1315
Port 1 Port 2
31333537394142
16
30
44
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
DSR
25
DSR
21
DSR
17
DSR
30
GND
26
GND
22
GND
18
GND
42
DCD
39
DCD
35
DCD
31
DCD
44
DTR
41
DTR
37
DTR
33
DTR
Device Side Pin Assignments
Male DB9 (CBL-M44M9x4-50)
15
69
Pin RS-232
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
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