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Table 3-6. Sources and Destinations for NI PXI-6682 Signal Routing Operations
CLKIN
PFI <0..2>
PXI_ CLK10
PXI_STAR <0..12>
PXI TRIG <0..7>
TCXO
Time-synchronized
events and clocks
a
Can be accomplished in two stages by routing source to PXI_CLK10_IN, replacing PXI_CLK10 with PXI_CLK10_IN
(occurs automatically in most chassis), and then routing PXI_CLK10 to the destination. The source must be 10 MHz.
b
Asynchronous routes between a single source and multiple destinations are very low skew. See Appendix A, Specifications,
for details.
I/O Considerations
Using the Ethernet Port
The NI PXI-6682 provides one standard RJ-45 connection for
Ethernet communication. This port auto negotiates to the best possible
speed—10 Mbps or 100 Mbps. The Ethernet port is auto-MDI capable,
which means crossover cabling is not necessary when connecting the
NI PXI-6682 to another network card. The NI PXI-6682 senses whether a
crossed connection is needed and performs the action internally. The
Ethernet port also allows for full duplex operation, so traffic can be sent and
received at the same time.
© National Instruments Corporation
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Destinations
Front Panel
CLKOUT
PFI <0..2>
✓
✓
a
a
✓
✓
✓
✓
b
✓
✓
✓
a
✓
3-11
Chapter 3
Hardware Overview
Backplane
PXI_
PXI_Star
CLK10_IN
Trigger
<0..12>
✓
✓
a
✓
b
✓
✓
✓
✓
✓
a
✓
NI PXI-6682 User Manual
PXI TRIG
<0..7>
✓
a
✓
✓
✓
✓
✓
a
✓
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