Figure 2-5. Db-9 Connector Pin Locations; Table 2-1. Db-9 Pin Descriptions - National Instruments PCI-232/2 Getting Started

© National Instruments Corporation
Figure 2-5 and Table 2-1 give the pin locations and descriptions of the
DB-9 connector, which is found on the two-port PCI serial board,
the 10-position modular jack to DB-9 cable, and the cable adapter for
the eight-port board.
PIN 5
PIN 1

Figure 2-5. DB-9 Connector Pin Locations

DB-9 Pin
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Chapter 2

Table 2-1. DB-9 Pin Descriptions

232 Signal
DCD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI
2-7
Installation and Verification
PIN 9
PIN 6
485 Signal
GND
CTS+ (HSI+)
RTS+ (HSO+)
RXD+
RXD-
CTS- (HSI-)
RTS- (HSO-)
TXD+
TXD-
PCI Serial for Windows 95