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Chapter 3
I/O Information
3-6
ni.com
Ethernet
Figure 3-4 shows the location and pinouts for the Ethernet connector on the 
NI PXI-8104. Table 3-4 lists and describes the Ethernet connector signals.
Figure 3-4.  Ethernet Connector Location and Pinout
Note
The Ethernet controller can perform automatic crossover, thus eliminating the need 
for crossover cables.
Table 3-4.  Ethernet Connector Signals
Pin
Fast Ethernet
Gigabit Ethernet
1
TX+
TX_A+
2
TX–
TX_A–
3
RX+
RX_B+
4
NC
TX_C+
5
NC
TX_C–
6
RX–
RX_B–
7
NC
RX_D+
8
NC
RX_D–
Ethernet
1
8