Dell PowerEdge External OEMR XL R720XD Technical Manual page 18

The R720xd LED panel is located on the front of the chassis to indicate the status of system
conditions. For more information on the R720xd LED panel, see the
R720xd Owner's Manual
A useful feature included with Dell PowerEdge 12
(QRL)—a model-specific Quick Response (QR) code that is located on the server (shown in Figure
11). Just use your smartphone to access the Dell QRL application to learn more about the server.
This QRL code allows you to:

View step-by-step videos, including overviews of system internals and externals, as well as
detailed, concise, task-oriented videos and installation wizards

Locate reference materials, including searchable owner's manual content, LCD diagnostics, and
an electrical overview
PowerEdge R720 and R720xd Technical Guide
18
on Support.Dell.com/Manuals.
Dell PowerEdge R720 and
th
generation servers is the Quick Resource Locator