Cisco SRW224G4-K9-NA Manuale utente

Quick Start Guide

Cisco Small Business

300 Series Managed Switches

2 300 Series Managed Switches

Welcome

Thank you for choosing the Cisco Small Business 300 Series Managed

Switch, a Cisco Small Business 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.

Before you begin installing the switch, make sure you have all of the

package contents available, access to the

Cisco Small Business 300

Series Managed Switch Administration Guide

, and a PC with a web

browser for using web-based system management tools.

Package Contents

•Cisco 300 Series Managed Switch

•Rackmount Kit

•Wallmount Kit (only for the 8-port devices)

•Power Cord (power adapter included with 8-port devices)

•This Quick Start Guide

•Product CD

•Serial Cable

•Rubber Feet

This guide will familiarize you with the layout of the managed switch and

describe how to deploy the device in your network. For additional

information, see www.cisco.com/smb.

Mounting the Cisco Switch

There are three ways to physically install the switch:

• Set the switch on a flat surface.

•Mount the switch on a wall (8-port devices only).

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

Do not deploy the device in a location where any of the following

conditions exist:

High Ambient Temperature—The ambient temperature must not

exceed 104 degrees Fahrenheit (40 degrees Centigrade).

300 Series Managed Switches 3

NOTE Some switches have a higher temperature rating. The SG300-

10SFP, SG300-52P and SG300-52MP are rated at 113 degrees

Fahrenheit (45 degrees Centigrade), and the SG300-28MP, and SF300-

24MP are rated at 122 degrees Fahrenheit (50 degrees Centigrade).

Reduced Air Flow—Both side panels must be unobstructed to prevent

overheating.

Mechanical Overloading—The device should be level, stable, and

secure to prevent it from sliding or shifting out of position.

Circuit Overloading—Adding the device to the power outlet must not

overload that circuit.

Rack-Mount Placement

STEP 1Remove the four screws from each side near the front of the switch.

Retain the screws for re-installation. (Do not remove the four screws

from each side near the back of the switch.)

STEP 2Place one of the supplied spacers on the side of the switch so the

four holes of the spacers align to the screw holes. Place a rack

mount bracket next to the spacer and reinstall the four screws

removed in Step 1.

NOTE If your screws are not long enough to reattach the bracket with

the spacer in place, attach the bracket directly to the case without the

spacer.

STEP 3Repeat Step 2 for the other side of the switch.

STEP 4After the mounting hardware has been securely attached, the

switch is now ready to be installed into a standard 19-inch rack.

4 300 Series Managed Switches

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 may tip over.

Wall Mounting

Only the 8-port models of the switch can be wall-mounted.

NOTE The switch should be mounted so that the ports face up or down.

Do not mount the switch with the ports to the side.

There is a wall-mount kit packed with your switch. The dimensions for the

mount kit are as follows:

Mount the managed switch to the wall by drilling two pilot holes

3.7 inches (95 mm) apart, attaching the provided anchors and screws to

the wall, then sliding the switch into position on the screws.

The switch should have a minimum of 5 inches (130 mm) of clearance on all

sides.

WARNING Insecure mounting may damage the device or cause injury.

Cisco is not responsible for damages incurred by insecure wall-

mounting.

18 mm/0.4 in 222.2 mm/0.9 in 36.8 mm/0.3 in 417.6 mm/0.7 in

196243

300 Series Managed Switches 5

Connecting Network Devices

To connect the switch to the network:

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

printer, network storage, or other network device.

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

numbered managed switch Ethernet ports.

The Ethernet port light turns green when the connection is active.

Refer to Features of the Cisco Small Business 300 Series

Managed Switch, page 12 for details about the different ports

and LEDs on each switch.

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

the managed switch.

NOTE Cisco strongly recommends using Cat5 or better cable for Gigabit

connectivity. 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.

6 300 Series Managed Switches

Power over Ethernet (PoE) Considerations

If your switch is one of the PoE models, consider the following table for

specific information:

NOTE The switch can deliver a maximum of 15.4 Watts to any 10/100 or

Gigabit PoE port. The 24MP, 28MP, 52P and 52MP models of the switch

can deliver a maximum of 30 Watts to any PoE port.

WARNING The switch is to be connected only to PoE networks without

routing to the outside plant.

300 Series Switches with Power Over Ethernet

Model Power

Dedicated to

PoE

Number of

Ports

Supporting

PoE

Standard

Supported

SF302-08P 62 Watts 8 802.3af

SF302-08MP 124 Watts 8 802.3af

SF300-24P 180 Watts 24 802.3af

SF300-24MP 375 Watts 24 802.3af and

802.3at

SF300-48P 375 Watts 48 802.3af

SG300-10P 62 Watts 8 802.3af

SG300-10MP 124 Watts 8 802.3af

SG300-28P 180 Watts 24 802.3af

SG300-28MP 375 Watts 24 802.3af and

802.3at

SG300-52P 375 Watts 48 802.3af and

802.3at

SG300-52MP 740 Watts 48 802.3af and

802.3at

300 Series Managed Switches 7

CAUTION Consider the following when connecting switches capable of

supplying PoE:

The PoE models of the switches are PSE (Power Sourcing

Equipment) that are capable of supplying DC power to

attaching PD (Powered Devices). These devices include VoIP

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

switches can detect and supply power to pre-standard

legacy PoE Powered 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 PSE, and as such should be

by 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.

8 300 Series Managed Switches

Configuring the Cisco Small Business

Managed Switch

Before You Begin

Verify the managing computer requirements in the product release notes.

The switch can be accessed and managed by two different methods; over

your IP network using the web-based interface, or by the Command Line

Interface (CLI) through the console port. Using the console port requires

advanced user skills.

Accessing and Managing Your Switch

Use the Web-Based Interface

To access the switch by using the web-based interface, you must know

the IP address the switch is using. The switch uses the factory default IP

address of 192.168.1.254 by default.

When the switch is using the factory default IP address, the System LED

flashes continuously. When the switch is using a DHCP server-assigned IP

address or an administrator has configured a static IP address, the System

LED is on solid (DHCP is enabled by default).

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

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 through an IP network:

STEP 1Power on the computer and the switch.

STEP 2Set the IP configuration on your computer.

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

192.168.1.254, you must chose an IP address for the computer

in the range of 192.168.1.1—192.168.1.253 that is not already in

use.

b. If the IP addresses is assigned by a DHCP server, make sure

the DHCP server is running and can be reached from the

switch and the computer. It might be necessary to disconnect

and reconnect the devices for them to discover their new IP

addresses from the DHCP server.

300 Series Managed Switches 9

NOTE Details on how to change the IP address on your computer

depend upon the type of architecture and operating system you are

using. Use the computer Help and Support functionality to search for “IP

Addressing.”

STEP 3Open a Web browser window. If you are prompted to install an

Active-X plug-in when connecting to the device, follow the

prompts to accept the plug-in.

STEP 4Enter the switch IP address in the address bar and press Enter. For

example, http://192.168.1.254.

The Switch Login Page

displays.

STEP 5Enter the default login information:

•Username is cisco

•Default password is cisco (passwords are case sensitive)

STEP 6If this is the first time that you have logged on with the default

username and password, the

Change Password Page

opens. The

rules for constructing a new login and password are displayed on

the page. Enter a new administrator password and click Apply.

CAUTION Make sure that any configuration changes made are saved to

the Startup configuration before exiting from the web-based

interface by clicking on the Save icon. Exiting before you

save your configuration will result in all current changes

being lost the next time the switch is rebooted.

The Getting Started window displays. You are now ready to configure the

switch. Refer to the

Cisco 300 Series Managed Switch Administration

Guide

for further information.

Use the console port

To configure the switch by using the console port:

STEP 1Connect a computer to the switch console port using the provided

serial cable.

STEP 2Start a terminal application such as HyperTerminal on the

computer.

STEP 3Configure the utility with the following parameters:

•115200 bits per second (with release 1.2.5 of the firmware,

autobaud detection is enabled by default, so the switch should

detect the speed after you press Enter).

10 300 Series Managed Switches

•8 data bits

•no parity

•1 stop bit

•no flow control

STEP 4Enter a user name and password. User names and passwords are

both case sensitive and alpha-numeric. The default username is

cisco, and the default password is cisco.

STEP 5If this is the first time that you have logged on with the default

username and password, the following message appears:

Please change your password from the default

settings. Please change the password for better

protection of your network. Do you want to change

the password (Y/N) [Y]?

STEP 6Select Y, and enter a new administrator password.

CAUTION Make sure that any configuration changes are saved before

exiting by issuing the command:

copy running-config startup-config

You are now ready to configure the switch. Refer to the

Cisco Small

Business 300 Series Managed Switch Administration Guide

for further

information.

NOTE If you are not using DHCP on your network, set the IP address type

on the switch to Static and change the static IP address and subnet

mask to match your network topology. Failure to do so may result in

multiple switches using the same factory default IP address of

192.168.1.254.

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