Cisco SF220-24 Manuale utente

Quick Start Guide

Cisco 220 Series Smart Plus Switches

Package Contents

•Cisco 220 Series Smart Plus Switch

•Power Cord

•Rack-Mount Kit and Rubber Feet

•Console Cable

•This Quick Start Guide

•Product CD

•Technical Support Contacts

2 Cisco 220 Series Smart Plus Switches Quick Start Guide

Welcome

Thank you for choosing the Cisco 220 Series Smart Plus Switch, a Cisco

network communications device. This device is designed to be

operational right out-of-the-box as a standard bridge. In the default

configuration, it will forward packets between connecting devices after

power up.

This guide familiarizes you with the layout of the switch and describes how

to deploy the switch in your network. For additional information, see

www.cisco.com/go/220switches.

Before You Begin

Before you begin the installation, make sure that you have the following:

•RJ-45 Ethernet cables (Category 5E or higher) for connecting network

devices.

•Console cable for using the console port to manage your switch.

•Tools for installing the hardware. The rack-mount kit packed with the

switch contains four rubber feet for desktop placement, and two

brackets and twelve screws for rack-mounting.

•PC with Internet Explorer (version 8.0 and higher), Firefox (version 20.0

or higher), Chrome (version 23.0 or higher), or Safari (version 5.7 or

higher) for using the web-based interface or the console port to

manage your switch.

Cisco 220 Switch Features

This section describes the available product models and the exterior of the

switch to help familiarize you with your switch.

Product Models

Model Description Ports

SF220-24 24-Port 10/100 Smart Plus

Switch

24 FE Copper + 2 GE

Combo

SF220-24P 24-Port 10/100 PoE Smart Plus

Switch

24 FE Copper + 2 GE

Combo

SF220-48 48-Port 10/100 Smart Plus

Switch

48 FE Copper + 2 GE

Combo

Cisco 220 Series Smart Plus Switches Quick Start Guide 3

Front Panel

The ports, LEDs, and Reset button are located on the front panel of the

switch.

RJ-45 Ethernet Ports—The RJ-45 Ethernet ports connect network

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

SFP Ports—The small form-factor pluggable (SFP) ports are connection

points for modules so that the switch can link to other switches. These

ports are also commonly referred to as mini Gigabit Interface Converter

(miniGBIC) ports. The term SFP will be used in this guide.

•The SFP ports are compatible with Cisco modules MFEBX1, MFEFX1,

MFELX1, MGBLH1, MGBLX1, MGBSX1, MGEBX1, and MGBT1.

•The SFP port is shared with one other RJ-45 port, called a combo port.

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

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

the SFP port traffic.

SF220-48P 48-Port 10/100 PoE Smart Plus

Switch

48 FE Copper + 2 GE

Combo

SG220-26 26-Port Gigabit Smart Plus

Switch

24 GE Copper + 2 GE

Combo

SG220-26P 26-Port Gigabit PoE Smart Plus

Switch

24 GE Copper + 2 GE

Combo

SG220-50 50-Port Gigabit Smart Plus

Switch

48 GE Copper + 2 GE

Combo

SG220-50P 50-Port Gigabit PoE Smart Plus

Switch

48 GE Copper + 2 GE

Combo

Model Description Ports

PoE

SG220-50P 50-Port Gigabit PoE Smart Plus Switch G49 G50 SFP

100M

G2 SFP

SF220-24 24-Port 10/100 Smart Plus Switch

370926

Left Side Right Side

4 Cisco 220 Series Smart Plus Switches Quick Start Guide

Reset Button—The Reset button is used to reboot or reset the switch with

a pin or paper clip. See Returning the Cisco 220 Switch to the Factory

Default Settings for more information.

System LED—(Green) Lights steady when the switch is powered on, and

flashes green when booting, performing self-tests, and/or acquiring an IP

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

failure, a firmware failure, and/or a configuration file error.

Link/ACT LED—(Green) Located on the left of the port. Lights steady

when a link between the corresponding port and other device is detected.

Flashes when the port is passing traffic.

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

The LEDs that follow are only present on the switch models that have

those capabilities.

100M LED (if present)—(Green) Located on the right of the port. Lights

steady when other device is connected to the port, is powered on, and a

100 Mbps link is established between the devices. When the LED is off, the

connection speed is under 100 Mbps or nothing is cabled to the port.

GIGABIT LED (if present)—(Green) Located on the right of the port. Lights

steady when another device is connected to the port, is powered on, and a

1000 Mbps link is established between the devices. When the LED is off,

the connection speed is under 1000 Mbps or nothing is cabled to the port.

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

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

corresponding port.

Back Panel

The power and console ports are located on the back panel of the switch.

POWER—The power port connects the switch to power.

CONSOLE—The console port connects the supplied console cable to a

computer’s serial port for configuration using a terminal emulation

program.

100-240V~

8-4A 50-60Hz

CONSOLE

370927

Cisco 220 Series Smart Plus Switches Quick Start Guide 5

Mounting the Cisco 220 Switch

There are three ways to physically install the switch:

•Place the switch on a flat surface. To place the switch on a desktop,

install the four rubber feet (included) on the bottom of the switch.

•Mount the switch in a standard rack (1 rack unit high).

•Mount the switch to a wall (non-PoE models only).

Placement Tips

•AmbientTemperature—To prevent the switch from overheating, do not

operate it in an area that exceeds an ambient temperature of 122°F

(50°C).

•AirFlow—Be sure that there is adequate air flow around the switch.

• Mechanical Loading—Be sure that the switch is level and stable to

avoid any hazardous conditions.

• Circuit Overloading—Adding the switch to the power outlet must not

overload that circuit.

Rack Mounting

You can mount the switch in any standard size, 19-inch (about 48 cm) wide

rack. The switch requires 1 rack unit (RU) of space, which is 1.75 inches

(44.45 mm) high.

CAUTION For stability, load the rack from the bottom to the top, with the

heaviest devices on the bottom. A top-heavy rack is likely to

be unstable and might tip over.

To install the switch into a 19-inch standard chassis:

STEP 1Attach one of the supplied brackets on the side of the switch so that

the four holes align to the screw holes, and use the four supplied M5

(non-PoE models) or M4 (PoE models) screws to secure it.

6 Cisco 220 Series Smart Plus Switches Quick Start Guide

STEP 2Repeat the previous step to attach the other bracket to the opposite

side of the switch.

STEP 3After the brackets are securely attached, the switch is now ready to

be installed into a standard 19-inch rack as shown here.

Wall Mounting (Non-PoE Models Only)

If your switch is the non-PoE model, you can wall-mount it by utilizing the

supplied rack-mount brackets. The pan head screws used to attach the

brackets to the switch and the flat head screws used to attach the switch

to wall are user-supplied. Suggested hardware is illustrated here.

WARNING Insecure mounting might damage the device or cause injury.

Cisco is not responsible for damages incurred by insecure

wall-mounting.

Cisco 220 Series Smart Plus Switches Quick Start Guide 7

To mount the non-PoE switch to the wall:

STEP 1Determine where you want to mount the switch. Verify that the

surface is smooth, flat, dry, and sturdy.

STEP 2Attach one of the supplied brackets to one side of the switch and

use two pan head M5 screws to secure it.

STEP 3Repeat the previous step to attach the other bracket to the opposite

side of the switch.

STEP 4For the best support of the switch and cables, make sure that the

switch is attached securely to wall studs or to a firmly attached

plywood mounting backboard. Mount the switch with the front

panel facing down as shown here.

8 Cisco 220 Series Smart Plus Switches Quick Start Guide

Connecting Network Devices

To connect your switch to the network:

STEP 1Connect an Ethernet cable to the Ethernet port of a computer,

printer, network storage, or other network devices.

STEP 2Connect the other end of the Ethernet cable to one of the

numbered Ethernet ports of the switch. The LED of the port lights if

the device connected is active.

STEP 3Repeat Step 1 and Step 2 for each device that you want to

connect to the switch.

NOTE We strongly recommend using CAT-5E or better cable to connect

network devices. When you connect your network devices, do not

exceed the maximum cabling distance of 100 meters (328 feet). It can

take up to one minute for attached devices or the LAN to be operational

after it is connected. This is normal behavior.

Power over Ethernet (PoE) Considerations

If your switch is the PoE model, consider the following:

As a Power Sourcing Equipment (PSE) device, the switch can deliver a

maximum of 30 Watts per PoE port on port 1 to 4 and 15.4 Watts per PoE

port on other ports to a Powered Device (PD).

WARNING The PoE switch should be connected only to PoE networks

without routing to the outside plant.

Model Power Dedicated

to PoE

PoE

Ports

PoE Standard

Supported

SF220-24P and

SG220-26P

180 Watts 1 to 24 802.3at and 802.3af on

port 1 to 4;

802.3af on port 5 to 24

SF220-48Pand

SG220-50P

375 Watts 1 to 48 802.3at and 802.3af on

port 1 to 4;

802.3af on port 5 to 48

Cisco 220 Series Smart Plus Switches Quick Start Guide 9

CAUTION Consider the following when connecting switches capable of

supplying PoE:

The PoE models of the switches are PSEs that are capable of

supplying DC power to attaching PDs. These devices include

VoIP phones, IP cameras, and wireless access points. The PoE

switches can detect and supply power to pre-standard legacy

PoE Power Devices. Due to the support of legacy PoE, it is

possible that a PoE switch acting as a PSE may mistakenly

detect and supply power to an attaching PSE, including other

PoE switches, as a legacy PD.

Even though PoE switches are PSEs, and as such should be

another PSE due to false detection. When this happens, the

PoE switch may not operate properly and may not be able to

properly supply power to its attaching PDs.

To prevent false detection, you should disable PoE on the ports

on the PoE switches that are used to connect to PSEs. You

should also first power up a PSE device before connecting it to

a PoE switch. When a device is being falsely detected as a PD,

you should disconnect the device from the PoE port and

power recycle the device with AC power before reconnecting

its PoE ports.

Configuring the Cisco 220 Switch

The Cisco 220 switch can be accessed and managed by two different

methods: over your IP network by using the web-based interface, or by

using the switch’s command-line interface through the console port. Using

the console port requires advanced skills.

These are the default settings used when configuring your switch for the

first time.

Parameter Default Value

Username cisco

Password cisco

LAN IP 192.168.1.254

10 Cisco 220 Series Smart Plus Switches Quick Start Guide

Configuring Your Switch Using the Web-based Interface

To access the switch with a web-based interface, you must know the IP

address that the switch is using. The default configuration of the switch is

to use its factory default IP address of 192.168.1.254 until it has obtained

an IP address from a DHCP server.

NOTE If you are managing the switch through a network connection and

the switch IP address is changed, either by a DHCP server or manually,

your access to the switch will be lost. You must enter the new IP address

that the switch is using into your browser to use the web-based

interface. If you are managing the switch through a console port

connection, the link is retained.

To configure the switch using the web-based interface:

STEP 1Power on the computer and your switch.

STEP 2Connect the computer to the switch.

You can connect to the same IP subnet as the switch by

connecting them directly with an Ethernet cable, or by connecting

to the same LAN where the switch is located through other

switches. You can also connect your computer to the switch from

another IP subnet through one or more IP routers.

STEP 3Locate the IP address of the switch.

a. The switch can be accessed and managed by Cisco network

tools and services including the Cisco FindIT Network

Discovery Utility that enables you to automatically discover all

supported Cisco devices in the same local network segment

as your computer. You can get a snapshot view of each device

or launch the product configuration utility to view and configure

the settings. For more information, see www.cisco.com/go/

findit.

b. Locate the IP address assigned by your DHCP server by

accessing your router or DHCP server; see your DHCP server

instructions for information. Make sure that your DHCP server is

running and can be reached.

STEP 4Set up the IP configuration on your computer.

a. If the switch is using the default static IP address of

192.168.1.254, you must choose an IP address in the range of

192.168.1.2 to 192.168.1.253 that is not already in use.

b. If the IP addresses will be assigned by DHCP, make sure that

your DHCP server is running and can be reached from the

switch and the computer. You may need to disconnect and

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