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Features of the Cisco 250 Series Smart

Switches

This section describes the exterior of the smart switches including ports,

LEDs, and connections. Not all models have all of the features described.

Ports

USB Port—The USB port connects the switch to a USB device so that you

can save and restore the configuration files, firmware images, and

SYSLOG files through the connected USB device.

RJ-45 Ethernet Ports—Use these ports to connect network devices, such

as computers, printers, and access points, to the switch.

SFP (if present)—The small form-factor pluggable (SFP) ports are

connection points for modules, so the switch can link to other switches.

These ports are also commonly referred to as miniGigaBit Interface

Converter (miniGBIC) ports. The term SFP is used in this guide.

• SFP ports are compatible with Cisco modules MGBT1, MGBSX1,

MGBLH1, MGBLX1, MGBBX1, MFELX1, MFEFX1, and MFEBX1, as well as

other brands of modules.

• Some SFP interfaces are shared with one other RJ-45 port, called a

combo port. When the SFP is active, the adjacent RJ-45 port is

disabled.

• The LEDs of the corresponding RJ-45 port flash green to respond to the

SFP interface traffic.

LEDs

System LED—(Green) The LED lights steady when the switch is powered

on, and flashes when booting, performing self tests, and acquiring an IP

address. If the LED flashes amber, the switch has detected a hardware

failure.

LINK/ACT LED—(Green) Located on the left of the port. The LED lights

steady when a link between the corresponding port and another device is

detected, and flashes when the port is passing traffic.

The System and LINK/ACT LEDs are on each model of the switch.

OTE

The following LEDs are only present on switch models that have those

capabilities:

PoE (if present)—(Amber) Located on the right of the port. The LED lights

steady to indicate that power is being supplied to a device attached to the

corresponding port.

Cisco 250 Series Smart Switches