Table 4. 10/100/1000 LAN Connector LED States
LED
Color
LED State
Condition
Top
Green Off
LAN link is not established.
On (steady state)
LAN link is established.
On (brighter and pulsing) The controller is communicating with another
computer on the LAN.
Bottom Unlit
Off
10 Mbit/sec data rate is selected.
Green On
100 Mbit/sec data rate is selected.
Amber On
1000 Mbit/sec data rate is selected.
Universal Serial Bus
The following figure shows the location and pinouts for the Universal Serial Bus (USB)
connector on the PXIe-8821. Each controller has two USB 2.0 ports and two USB 3.0 ports on
the front panel.
Figure 8. USB Connector Location and Pinout
NI PXIe-8821
Embedded Controller
USB 2.0
4
1
9
5
4
1
USB 3.0
The following table lists and describes the USB 2.0 connector signals.
PXIe-8821 User Manual
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© National Instruments
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