Out-Of-Band Management Port; Usb Port; Reset Button; Port And System Leds - Dell N20 serie Handbuch Zum Einstieg

The defaults are 9600 baud rate, 8 data bits, No Parity, 1 Stop Bit, No Flow
Control.

Out-of-Band Management Port

The Out-of-Band (OOB) management port is a 10/100/1000BASE-T
Ethernet port dedicated to remote switch management. Traffic on this port is
segregated from operational network traffic on the switch ports and cannot be
switched or routed to or from the operational network.

USB Port

The Type-A, female USB port supports a USB 2.0-compliant flash memory
drive. The Dell Networking switch can read or write to a flash drive formatted
as FAT-32. You can use a USB flash drive to copy switch configuration files
and images between the USB flash drive and the switch. You can also use the
USB flash drive to move and copy configuration files and images from one
switch to other switches in the network.
The USB port does not support any other type of USB device.

Reset Button

The reset button is accessed through the pinhole and allows you to perform a
hard reset on the switch. To use the reset button, insert an unbent paper clip
or similar tool into the pinhole. When the switch completes the boot process
after the reset, it resumes operation with the most recently saved
configuration. Any changes made to the running configuration that were not
saved to the startup configuration prior to the reset are lost.

Port and System LEDs

The front panel contains light emitting diodes (LEDs) that indicate the
status of port links, power supplies, fans, stacking, and the overall system
status.
For information about the status that the LEDs indicate, see the User's
Configuration Guide.
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Getting Started Guide