Figure 2-7. Db-25 Connector Pin Locations; Table 2-3. Db-25 Pin Descriptions - National Instruments PCI-232/2 Getting Started

© National Instruments Corporation
Figure 2-7 and Table 2-3 give the pin locations and descriptions of the
DB-25 connector, which is on the optional 10-position modular jack
to DB-25 cable.
PIN 13
PIN 1

Figure 2-7. DB-25 Connector Pin Locations

Table 2-3. DB-25 Pin Descriptions

DB-25 Pin
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 20
Pin 22
Pins not listed in this table are No Connect.
Chapter 2
232 Signal
TXD
RXD
RTS
CTS
DSR
GND
DCD
DTR
RI
2-9
Installation and Verification
PIN 25
PIN 14
485 Signal
RTS+ (HSO+)
CTS+ (HSI+)
RTS- (HSO-)
TXD+
CTS- (HSI-)
RXD-
GND
RXD+
TXD-
PCI Serial for Windows 95