Chapter 3
Hardware Overview
©
National Instruments Corporation
3-5
NI PXI-6682 Series User Manual
Speed LED
The Speed LED indicates the NI PXI-6682 Series Ethernet link speed.
Refer to Figure 3-3 for the Speed LED location.
Table 3-3 summarizes what the Speed LED indicates.
Note
When there is no Ethernet link the Speed LED is off.
ACT/LINK LED
The ACT/LINK LED indicates the NI PXI-6682 Series Ethernet link
condition. Refer to Figure 3-3 for the ACT/LINK LED location.
Table 3-4 summarizes what the ACT/LINK LED indicates.
Connectors
This section describes the connectors on the front panel of the
NI PXI-6682 Series. Refer to Figure 3-3 for the location of the connectors.
•
GPS ANT
—GPS antenna RF input and DC power output for active
GPS antenna. This connector provides 5 VDC for an active antenna.
This connector also serves as the input for the RF signal coming in
from the GPS antenna.
•
CLKOUT
—Clock Output. This connector is used to source a
10 MHz clock that can be routed programmatically from the
temperature-compensated crystal oscillator (TCXO) or backplane
clock (PXI_CLK10).
Table 3-3.
Speed LED Description
Color
Status
Off
10 Mbps
Green
100 Mbps
Table 3-4.
ACT/LINK LED Color Description
Color
Status
Off
No Ethernet link
Green
Ethernet link established
Blink
Ethernet activity occurring
