0 hardware conn ections, 1 introduction, 2 db9m connections – Measurement Computing PCI-COM232 User Manual
Page 11: 3 db25m connections
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7
3.0
HARDWARE CONN ECTIONS
3.1
Introduction
The PCI-COM232 and PCI-COM232/2 provide 9-pin male “D” (DB9M) connectors that extend through
the backplate of the board. There are two options for the PCI-COM232/4. The C37F-4X9M-1M is a cable
that splits the ports into separate DB9M connectors, while the C37F-4X25M-1M splits the 37-pin
connector into four ports with DB25M connectors.
3.2
DB9M Connections
The connectors on the PCI-COM232, PCI-COM232/2 boards and C37F-4X9M-1M cable all provide the
pin-out shown in Figure 3-1 below. The view shown is looking into the connector.
Figure 3-1. PCI-COM232 Board Connector Pinout
3.3
DB25M Connections
Cable C37F-4X25M-1M pinout is shown in Figure 3-2. The view is looking into the cable connector
Figure 3-2. Cable C37F-4X25M-1M Pinout
13
12
11
10
9
8
7
6
5
4
3
2
1
DCD
GND
DSR
CTS
RTS
RX
TX
25
24
23
22
21
20
19
18
17
16
15
14
RI
DTR
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