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Chapter 2 Installation and Verification
PCMCIA Serial for Windows Me/9x 2-8 ni.com
Connect the Cables
For the PCMCIA serial cards, you can use the standard DB-9 connector
found on most serial cables.
Figure 2-6 and Table 2-1 give the pin locations and descriptions of the
DB-9 connector, which is found on the PCMCIA serial cable.
Figure 2-6.
DB-9 Connector Pin Locations
Table 2-1.
DB-9 Pin Descriptions
DB-9 Pin 232 Signal 485 Signal
1 DCD* GND
2 RXD CTS+ (HSI+)
3 TXD RTS+ (HSO+)
4 DTR* RXD+
5 GND RXD–
6 DSR* CTS– (HSI–)
7 RTS RTS– (HSO–)
8 CTS TXD+
9 RI* TXD–
* These signals are not supported by the isolated 232 boards or ports 9-16 of the RS-232
sixteen-port board.
PIN 1
PIN 9
PIN 5
PIN 6