Figure 5. Lcd Control Panel; Figure 6. Qrl Location - Dell PowerEdge R420 Technical Manual

Feature
LCD panel and buttons
Optical drive
Power supply units
Power supply indicators
NIC indicators
PCIe slots
Ethernet connectors
Serial connector
iDRAC7 Enterprise port
Front control panel
The R420 control panel is located on the front of the chassis as shown in Figure 5. For more
information about the LCD control panel, see the
Support.Dell.com/Manuals.
Quick Resource Locator
A useful feature included with Dell PowerEdge 12
(QRL)— a model- specific Quick Response (QR) code that is located inside the R420 chassis cover
(see Figure 6). Use your smartphone to access the Dell QRL app to learn more about the server.
13 PowerEdge R420 Technical Guide
Description
Displays system ID, status information, and system error messages; two
navigation buttons to scroll through the menu on the LCD and one select
button
Optional slim DVD or DVD+RW drive
Supplies power to the server
Indicates whether server has power
Indicates network activity and status
Connects PCIe expansion cards to the server
Connects integrated 10/100/1000 NICs to the server
Connects a serial device to the server
Dedicated management port for optional iDRAC Ports card
Dell PowerEdge R420 Systems Owner's Manual
Figure 5. LCD control panel
th
generation servers is the Quick Resource Locator
Figure 6. QRL location
on