Dell OptiPlex GXa Reference And Installation Manual page 46

The NIC connector on the computer's back panel has the
following indicators (see Figure 4-1):
•
A yellow activity indicator flashes when the system
is transmitting or receiving network data. (A high
volume of network traffic may make this indicator
appear to be in a steady "on" state.)
parallel port
connector
keyboard
serial port 1
connector
connector
Figure 4-1. I/O Ports and Connectors
4-2 Dell OptiPlex GXa Midsize Systems Reference and Installation Guide
mouse
connector
serial port 2
USB
connector
connectors
•
A green link integrity indicator lights up when there
is a good connection between the network and the
NIC. When the green indicator is off, the computer is
not detecting a physical connection to the network.
link integrity
indicator
optional integrated
NIC connector
video connector
microphone jack
activity indicator
line-in jack
line-out jack