The cables included with your kit convert the RJ-50 pinout to the
standard NI pinout on a DB-9 male connector, as shown in
Table 2.
Table 2. Pin Assignments for RS232 DB-9 Male Connector
Connector
RJ-50 Pin
Signal Name
6
7
8
9
1
2
3
4
5
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
8
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NI 9870 Getting Started Guide