90 Hardware OverviewReset ButtonThe reset button is accessed through the pinhole and allows you to perform ahard reset on the switch. To use the reset button, insert an unbent paper clipor similar tool into the pinhole. When the switch completes the boot processafter the reset, it resumes operation with the most recently savedconfiguration. Any changes made to the running configuration that were notsaved to the startup configuration prior to the reset are lost.Port and System LEDsThe front panel contains light emitting diodes (LEDs) that indicate thestatus of port links, power supplies, fans, stacking, and the overall system.Additionally, the PowerConnect 7024P and PowerConnect 7048P switchescontain LEDs that provide information about Power over Ethernet Plus(PoE+) status and activity on the ports.For information about the status that the LEDs indicate, see "LEDDefinitions" on page 95.Stack Master LED and Stack Number DisplayWhen a switch within a stack is the stack master, the stack master LED,which is labeled M, is solid green. If the M LED is off, the stack member isnot the stack master. The Stack No. panel displays the unit number for thestack member. If a switch is not part of a stack, the M LED is illuminated andthe stack unit number is 1.PowerConnect 7000 Series Back PanelThe PowerConnect 7000 Series back panel has the following features:• Expansion Slots for Plug-in Modules• Power Supplies• Ventilation System• Locator LED
