User`s manual

PCI Express Board User's Manual Driver Installation: Windows 2000
5-7
4
CTS
5
RTS
6
DTR
7
GND
8
DCD
20
DSR
Female DB25 (OPT8F+/Z+)
Pin
RS-422
2
RxD+(B)
3
TxD+(B)
7
GND
14
RxD-(A)
16
TxD-(A)
Female DB25 (OPT8K+)
Pin
RS-422 /
4-wire RS-485
2-wire RS-485
2
RxD+(B)
Data+(B)
3
TxD+(B)
---
7
GND
GND
14
RxD-(A)
Data-(A)
16
TxD-(A)
---
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