Users Guide

120 Hardware Overview
The front-panel switch ports have the following characteristics:
• The switch automatically detects the difference between crossed and
straight-through cables on RJ-45 ports and automatically chooses the MDI
or MDIX configuration to match the other end.
• SFP+ ports support Dell EMC-qualified transceivers. The default
behavior is to log a message and generate an SNMP trap on insertion or
removal of an optic that is not qualified by Dell. The message and trap can
be suppressed by using the service unsupported-transceiver command.
• RJ-45 ports support full-duplex mode 10/100/1000 Mbps speeds on
standard Category 5 UTP cable. 1000BASE-T operation requires the use of
auto-negotiation.
• SFP+ ports support SFP+ transceivers and SFP+ copper twin-ax
technology operating at 10G or 1G speeds in full-duplex mode. SFP
transceivers are supported in SFP+ ports and operate at 1G full-duplex.
SFP transceivers require auto-negotiation to be enabled.
• The Dell EMC Networking N2024P/N2048P front-panel ports support
PoE (15.4W) and PoE+ (34.2W) as well as legacy capacitive detection for
pre-standard powered devices (PDs).
Console Port
The console port provides serial communication capabilities, which allows
communication using RS-232 protocol. The serial port provides a direct
connection to the switch and allows access to the CLI from a console
terminal connected to the port through the provided serial cable (with RJ45
YOST to female DB-9 connectors).
The console port is separately configurable and can be run as an asynchronous
link from 1200 BAUD to 115,200 BAUD. The Dell CLI supports changing
only the speed of the console port. The defaults are 9600 BAUD, 8 data bits,
no parity, 1 stop bit, and no flow control. It is recommended that the serial
port be configured to run at 115,200.
USB Port
The Type-A, female USB port supports a USB 2.0-compliant flash memory
drive. The Dell EMC Networking N-Series switch can read or write to a flash
drive with a single partition formatted as FAT-32. Use a USB flash drive to
copy switch configuration files and images between the USB flash drive and