NETGEAR FS308 - Switch Manuale utente

Model FS308 Fast Ethernet Switch Installation Guide

The NETGEAR Model FS308 Fast Ethernet Switch provides you with a low-

cost, high-performance network solution for the home or small office. It is

designed to support power users operating at either 10 megabits per second

(Mbps) or 100 Mbps.

Ethernet switches provide private, dedicated, 10 or 100 Mbps capacity to each

connected PC/server or hub/workgroup segment. The higher bandwidth enables

the use of applications such as multimedia, imaging, video, or high-performance

client-server functions among users who are spread out over the network.

With the Model FS308 Fast Ethernet Switch, this improvement is accomplished

very easily, with no change to the desktop (the network interface cards or

software and the network wiring). As a result, the performance upgrade and the

applications it enables are obtained very quickly and at a low cost.

The Model FS308 switch has the following key features:

• Eight automatic speed-sensing (autosensing) 10/100 Mbps Ethernet ports to

provide fast information exchange, resource sharing, and client or peer-to-

peer communication using simple Category 5 unshielded twisted pair (UTP)

cable

• IEEE 802.3u standard compliance for interoperation with all 100BASE-TX

Fast Ethernet (100 Mbps) products, 802.3i standard compliance for

interoperation with all 10BASE-T Ethernet products, and 802.3x standard

compliance for flow control

• Automatic address learning function to build the packet forwarding

information table, which contains up to 8,000 MAC addresses so that the

switch can support networks with as many as 8,000 devices

• Easy plug-and-play installation with no software to configure, saving time

and minimizing the potential for configuration errors

• Autosensing full-duplex or half-duplex mode of operation

• Wire-speed filtering and forwarding to provide the “traffic cop” function by

directing traffic to the appropriate port or network segment without slowing

down the traffic

• Internal 100 to 240 V AC power supply, eliminating the need for a bulky

wall transformer

• Normal/Uplink push button to simplify network extension and allow the

switch to connect to a hub using a straight-through cable

• LEDs that provide network traffic status and data transmission speed

— Status indicators on both the front and rear panels

— Eight vista RJ-45 ports

Start Here

Features

Model FS308 Fast Ethernet Switch Installation Guide

• Home and small office friendliness

— Network ports located on the back of the hub so that cables are kept

away from the desktop

— Compact design to fit into small offices

— Compliance with the Class B EMI standard so the switch will not

interfere with your home appliances

• 5-year warranty on hub unit (1-year warranty on power supply)

Verify that your package contains the following:

• Model FS308 switch

• Mounting kit (for wall installation)

• This installation guide

• Warranty & Owner Registration Card

• Support Information Card

• Power cord

Package Contents

8920FA

Wall Mount

Installation kit

Installation guide,

Warranty & Owner

Registration Card,

Support Information Card

Model FS308 switch

12345678

Power

100 Link/Act.

10 Link/Act.

FDX/Col.

PORT Fast Ethernet Switch

10/100Mbps

MODELFS308

Auto 10/100 Mbps

power

cord

Model FS308 Fast Ethernet Switch Installation Guide

Front Panel

The front panel of the Model FS308 switch contains the following LEDs that

correspond to each network port located on the back of the hub: 100 Mbps link/

activity (100 Link/Act), 10 Mbps link/activity (10 Link/Act), and full-duplex/

collision (FDX/Col). Each vista RJ-45 network port has its own 100 Link/Act

and 10 Link/Act LED as well.

LEDs

The table below describes the activity of the LEDs.

Vista RJ-45 Network Ports with Built-in LEDs

All of the ports on the switch are 10/100 Mbps capable autosensing Ethernet

ports. Each port supports only unshielded twisted pair (UTP) cable using an 8-

pin RJ-45 plug. Each port uses vista RJ-45 connectors that have two LEDs—the

100 Link/Act LED and the 10 Link/Act LED.

Label Color Activity Description

Pwr (Power) Green On

Off Power is supplied to the switch.

Power is disconnected.

100 Link/Act Green On

Blinking

The port is operating in 100 Mbps mode.

Data is being received or transmitted at 100

Mbps.

10 Link/Act Green On

Blinking

The port is operating in 10 Mbps mode.

Data is being received or transmitted at 10 Mbps.

FDX/Col Green

Yellow

Blinking

The port is operating in full-duplex mode.

A collision is occurring on the segment when the

port is operating in half-duplex mode. (Note that

some collisions are normal.)

Product Illustration

12345678

Power

100 Link/Act.

10 Link/Act.

FDX/Col.

8921FA

PORT Fast Ethernet Switch

10/100Mbps

100 Link/Act

LEDs

Power LED

10 Link/Act

LEDs

FDX/Col

LEDs

MODELFS308

Auto 10/100 Mbps

8923EA

100 Link/Act 10 Link/Act

Model FS308 Fast Ethernet Switch Installation Guide

Normal/Uplink Push Button

The Normal/Uplink push button on the front panel of the switch allows you to

select uplink (MDI) or normal (MDI-X) wiring for port 8 on the Model FS308

switch. These ports are configured for normal wiring to connect to a PC when

the push button is in the out position. When the push button is pressed in, these

ports are configured for uplink wiring to connect to another switch or to a hub,

using a straight-through twisted pair cable.

Rear Panel

The rear panel of the Model FS308 switch has eight autosensing 10/100 Mbps

Ethernet ports. The rear panel also has full-duplex (FDX) and auto-duplex

(AUTO) toggle switches and a power adapter receptacle for the supplied power

cord.

FDX/AUTO Duplex Toggle Switches

One full-duplex (FDX) and auto-duplex (AUTO) toggle switch is assigned to

each 10/100 Mbps port, enabling the communication mode to be set to either

full-duplex or auto-duplex mode. Full-duplex mode doubles throughput of

point-to-point connections by letting individual ports transmit and receive

concurrently when the connecting device also supports full-duplex mode.

Setting the toggle switch to AUTO on the 10/100 Mbps port enables the port to

determine duplex mode by coordinating with the remote port. In most cases, the

toggle switch should be set to AUTO. If the remote port is a repeater or hub or

cannot provide the proper signal to indicate its duplex capability, the port

defaults to half-duplex mode.

Set the port to full-duplex mode only if the remote device is full-duplex capable

but cannot provide the proper signal to indicate so.

8922FA

Power

receptacle

100M 10M

87654321

On = Link Blinking = Activity

Normal/Uplink

push button

Duplex Mode

switches

vista RJ-45

network ports

100-240 VAC, 50-60Hz, 0.35A

Normal/Uplink 8765432 FDX

AUTO

Duplex Mode

Model FS308 Fast Ethernet Switch Installation Guide

The Model FS308 switch is designed to provide flexibility in configuring your

network connections. Each switch can be used as a standalone device or can be

used with 10 Mbps or 100 Mbps hubs or other interconnection devices in

various configurations. The configuration examples in this section illustrate the

integration of the switches in various network environments using other

NETGEAR products.

Desktop Switching

The Model FS308 switch is used as a desktop switch to build a small network

that enables users to have 100 Mbps access to a file server. If a full-duplex

adapter card is installed in the server or PC, a 200 Mbps connection is possible

on the port where the server or PC is connected.

Segment Switching and Bridging from 10 Mbps to 100 Mbps

The Model FS308 switch is used as a switch that segments a network into

multiple connected pieces, increasing overall bandwidth and throughput. The

Model FS308 switch can segment networks that are built with the NETGEAR

Model DS108 and Model EN104 hubs and can function as an eight-port bridge

connecting traditional 10BASE-T Ethernet networks to 100BASE-TX Fast

Ethernet networks.

Applications

100M 10M

87654321

On= Link Blinking= Activity

100-240 VAC, 50-60Hz, 0.35A

Normal/Uplink 8765432 FDX

AUTO

Duplex Mode

Model FS308 switch

100 Mbps

10 Mbps

8924FA

Key

100M 10M

87654321

On= Link Blinking=Activity

100-240 VAC, 50-60Hz, 0.35A

Normal/Uplink 8765432 FDX

AUTO

DuplexMode

Auto10/100 Mbps DUAL SPEED

Model FS308 switch

Model EN104

hub

Model RT328

router

Model DS108

hub

8925FA

Model FS308 Fast Ethernet Switch Installation Guide

Before you begin installing your switch, prepare the installation site. Make sure

your operating environment meets the operating environment requirements of

the equipment.

To install your switch on a flat surface, you do not need any special tools. Be

sure the switch is positioned with at least 2 inches of space on all sides for

ventilation.

To install the switch on a wall, measure the distance between the mounting holes

on the back of the switch and mark the wall to match the location of the

mounting holes on the switch. At the marked location, screw into the wall the

two screws that you received with the mounting kit included in your package

contents. Be sure to choose a location that is near the devices to be connected, is

close to an electrical outlet, and provides at least 2 inches of space all around the

switch for ventilation.

Characteristic Requirement

Temperature Ambient temperature between 0°and 40°C (32°and 104°F).

No nearby heat sources such as direct sunlight, warm air

exhausts, or heaters.

Operating humidity Maximum relative humidity of 90%, noncondensing.

Ventilation Minimum 2 inches (5.08 cm) on all sides for cooling.

Adequate airflow in room or wiring closet.

Operating conditions At least 6 feet (1.83 m) to nearest source of electromagnetic

noise (such as photocopy machine or arc welder).

Power Adequate power source within 6 feet (1.83 m).

Pre

are the Site

Install the Switch

Model FS308 Fast Ethernet Switch Installation Guide

Before connecting the switch, be sure you review “Applications” for information

about determining the appropriate configuration for your networking needs.

To connect the switch:

1. Connect the devices to the 10/100 Mbps ports on the switch, using

Category 5 UTP cable and an RJ-45 plug.

2. Set the Normal/Uplink push button.

3. Set the FDX/AUTO toggle switches on the rear panel for the selected

duplex mode (the default setting is AUTO).

4. Connect one end of the DC power adapter cable to the power outlet on

the rear panel of the switch and the other end of the power adapter

cable to the wall outlet.

Refer to the following illustration when connecting the Model FS308 switch.

Each of the preceding steps has a corresponding reference number in the

illustration.

Note: Ethernet specifications limit the cable length between your PC or

server and the switch to 328 feet (100 meters) in length.

Connect Devices to the Switch

Normal/Uplink

FDX

AUTO

DuplexMode

8935FA

Normal/Uplink

FDX

AUTO

Duplex Mode

Normal/Uplink push button set to the Normal position for connection

to the server.

RJ-45

connector

23 4

For a typical configuration, set toggle switches to AUTO. For more

information, refer to "FDX/AUTO Duplex Toggle Switches."

100 Mbps

10 Mbps

Key

Model FS308 Fast Ethernet Switch Installation Guide

Twisted Pair Cables

For two devices to communicate, the transmitter of each device must be

connected to the receiver of the other device. The crossover function is usually

implemented internally as part of the circuitry in the device. Most ports on

switches and repeaters have media-dependent interfaces with crossover ports.

These ports are referred to as MDI-X or normal ports. Computer and

workstation adapter cards are usually media-dependent interface ports referred

to as MDI or uplink ports.

These two figures illustrate the use of straight-through and crossover twisted

pair cables.

RJ-45 Connector

The RJ-45 connector (shown in the illustration with an RJ-45 plug) is used to

connect workstations, hubs, and switches through unshielded twisted pair cable.

The RJ-45 connector accepts four-pair Category 3 or Category 5 UTP cable.

Only two pairs are used for 10BASE-T wiring.

RJ-45

Connector

Assignment

Normal Assignment: Uplink Assignment:

Port 8 on the Model FS308

switch

1 Input Receive Data + Output Transmit Data +

2 Input Receive Data - Output Transmit Data -

3 Output Transmit Data + Input Receive Data +

6 Output Transmit Data - Input Receive Data -

4,5,7,8 Not used Not used

Straight-through

twisted pair cable

Crossover

twisted pair cable

8146EC

Uplink or

MDI port Normal or

MDI-X port

Normal or

MDI-X port Normal or

MDI-X port

6Tx

711EA

12345678

Model FS308 Fast Ethernet Switch Installation Guide

When power has been applied to the switch:

• The green Pwr (Power) LED on the front panel is on.

• The green Link LED on each connected port is on.

When the switch is connected and operating, refer to the table in “LEDs” for

information about the LEDs and their activity.

Symptom Cause Solution

100 Link/Act LED

10 Link/Act LED is

off on an active

port.

Port connection is

not functioning. Make sure the attached device is powered

and there is a proper UTP connection at

that end.

Verify that the network adapter card is

installed correctly and that the 10 or 100

Mbps LED and Link LEDs are on at the

network adapter card in the PC.

Make sure that the proper cable is installed,

and check for miswired cable pairs or loose

connectors.

Make sure the port termination at both the

switch and the device end is correct. Check

the crimp on the RJ-45 connectors. In a

Fast Ethernet operation, the quality of the

crimp on the connector is important. It is

also important that only Category 5 cable is

used and that it is certified for 100 Mbps

operation.

Make sure the length of the UTP cable from

the switch to the device does not exceed

328 feet (100 meters).

Using cable test equipment, make sure that

the cable meets the crosstalk, attenuation,

and impedance specifications as required

by the 100BASE-TX standard.

100 Link/Act LED

10 Link/Act LED is

off on port 8.

Port connection is

not functioning. Check the Normal/Uplink push button on the

front panel.

If you are using a straight-through cable

connected to a PC or other MDI-wired

device, make sure the Normal/Uplink push

button is set in the Normal position.

If you are using a straight-through cable

connected to a router or another switch,

make sure the Normal/Uplink push button is

set in the Uplink position.

Try the alternate position of the Normal/

Uplink push button to turn the Link LED on.

Verif

Installation

Troubleshootin

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