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Chapter 3
Hardware Overview
©
National Instruments Corporation
3-11
NI PXI-6682 Series User Manual
indicates that the source and destination combination defined by that cell is
a valid routing combination.
I/O Considerations
Using the Ethernet Port
The NI PXI-6682 Series 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 Series to another network card. The NI PXI-6682 Series
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.
Table 3-6.
Sources and Destinations for NI PXI-6682 Series Signal Routing Operations
Destinations
Front Panel
Backplane
Sour
ces
Fr
on
t P
a
nel
CLKOUT
PFI<0..2>
PXI_
CLK10_IN
*
PXI_Star
Trigger
<0..12>
*
PXI TRIG
<0..7>
CLKIN
*
†
†
†
†
PFI<0..2>
‡
Ba
ck
pla
ne
PXI_ CLK10
PXI_STAR
<0..12>
*
‡
PXI TRIG<0..7>
Onboard
TCXO
†
†
†
Time-synchronized
events and clocks
*
The NI PXI-6682H does not have a CLKIN connector, PXI_CLK10_IN, or PXI-STAR trigger lines.
†
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.
‡
Asynchronous routes between a single source and multiple destinations are very low skew. See Appendix A,
for details.