LevelOne GSW-1657 Manuale utente

User's Guide

16/24-port Gigabit Ethernet Switch

GSW-1657

GSW-2457

Ver.1.0.0-0803

Specifications are subject to change without notice. Level One is a

registered trademark of Digital Data Communications Co., Ltd. Other

brands and product names are trademarks or registered trademarks of their

respective holders.

No part of the specifications may be reproduced in any form or by any means

or used to make any derivative such as translation, transformation, or

adaptation without permission from Digital Data Communications Co., Ltd.

FCC STATEMENT

The 16/24-port Gigabit Ethernet Switch has been tested and found to comply

with the limits for a class A digital device, pursuant to part 15 of the FCC

Rules. These limits are designed to provide reasonable protection against

harmful interference in a residential installation.

This equipment generates, uses and can radiate radio frequency energy

and, if not installed and used in accordance with the instructions, may

cause harmful interference to radio communications. However, there is no

guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television

reception, which can be determined by turning the equipment off and on, the

user is encouraged to try to correct the interference by one or more of the

following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to

which the receiver is connected.

Consult the dealer or an experienced radio/TV technician for help.

EC DECLARATION OF CONFORMITY (EUROPE)

In compliance with the EMC Directive 89/336/EEC, Low Voltage Directive

73/23/EEC, this product meets the requirements of the following standards:

EN55022

EN55024

EN60950

SAFETY NOTICES

Caution:

Do not use this product near water, for example, in a wet basement or

near a swimming pool.

Avoid using this product during an electrical storm. There may be a remote

risk of electric shock from lightning.

TABLE OF CONTENTS

Package Contents........................................................ 1

Chapter 1: Introduction of the Product.................................. 1

1.1 Overview of the Product............................................ 1

1.2 Features........................................................... 2

Chapter 2: Installation................................................. 2

2.1 Mounting the Switch on a Desk...................................... 2

2.2 Mounting the Switch in a Rack...................................... 3

2.3 Power On........................................................... 4

Chapter 3: Identifying External Components.............................. 4

3.1 Front Panel........................................................ 4

3.2 Rear Panel......................................................... 4

3.3 LED Indicators..................................................... 5

Appendix A: Specifications.............................................. 6

Appendix B: Troubleshooting............................................. 7

GSW-1657/2457 Gigabit Ehternet Switch User's Guide

Package Contents

The following contents should be found in your box:

One GSW-1657 or GSW-2457 Switch

One power cord

This User's Guide

Rubber footpads for Desk-mount

Rack-mount kit for installing the switch in a 19-inch rack

Note:

If any of the above contents is damaged or missing, please contact the

retailer from whom you purchased the GSW-1657/GSW-2457 16/24-port Gigabit

Ethernet Switch for assistance.

Chapter 1: Introduction of the Product

This chapter describes the features of the GSW-1657/GSW-2457 16/24-port

Gigabit Ethernet Switch.

1.1 Overview of the Product

The GSW-1657/GSW-2457 16/24-port Gigabit Ethernet Switch provides you

with a high-performance, low-cost, easy-to-use, seamless and standard

upgrade to boost your old network to 1000Mbps. Increase the speed of your

network server and backbone connections make Gigabit a reality. Power

users in the home, office, workgroup, or creative production environment

can now move large, bandwidth-intensive files faster. Transfer graphics,

CGI, CAD, or multimedia files and other applications that have to move

large files across the network almost instantly.

GSW-1657/GSW-2457 features a non-blocking switching architecture that

forwards and filters packets at full wire-speed for maximum throughput.

MAC address auto-learning and auto-aging, IEEE802.3x flow control for

GSW-1657/2457 Gigabit Ehternet Switch

full-duplex mode and backpressure for half-duplex mode. It is compatible

with all 10,100, and 1000Mbps Ethernet devices because it is standard-

based, it protects your existing network investments while providing you

with a straightforward migration path to faster Gigabit speeds.

The GSW-1657/GSW-2457 is plug-and-play and no configuration is required.

Auto MDI/MDI-X cable detection on all ports eliminate the need for crossover

cable or Uplink port. Each port can be used as general ports or Uplink

ports, and any port can be simply plugged into a server, a hub, a router or

a switch, using the straight cable or crossover cable. Diagnostic LEDs which

display link status and activity, allowing you to quickly detect and correct

problems on the network.

1.2 Features

Complies with IEEE802.3, IEEE802.3u, IEEE802.3ab standards

16/24 10/100/1000Mbps Auto-Sense RJ45 ports supporting Auto-MDI/MDIX

All ports Support Full/Half Duplex transfer mode for 10/100Mbps and

Full Duplex transfer mode for 1000Mbps

Supports IEEE802.3x flow control for full-duplex mode and backpressure

for half-duplex transfer mode

Non-blocking switching architecture that forwards and filters packets

at full wire-speed for maximum throughput

Supports MAC address auto-learning and auto-aging

LED indicators for monitoring power, fan, link, speed and activity

Rack-mountable steel case

Internal power supply

Chapter 2: Installation

2.1 Mounting the Switch on a Desk

Before place the Switch on a desk, attach four rubber footpads to the

flutes on the Switch bottom, then lay the Switch on the desktop, where can

be have as much as 5kg placed on top.

GSW-1657/2457 Gigabit Ehternet Switch User's Guide

Note:

Make sure there is a grounded AC outlet within 1.5 meters, and working

well.

Make sure there is free space for radiating heat and air.

Make sure not to place anything to heavy on top of the switch.

2.2 Mounting the Switch in a Rack

The dimension of GSW-1657/GSW-2457 is designed according to the standard

19 rack-mountable steel case of Electronic Industries Association.

Turn off all the equipment connected to the Switch before mounting it in

the rack, then rivet the two "L" brackets onto each side of the Switch,

fasten it with screws in the rack.

Figure 2-1 Rivet the "L" brackets onto the Switch

Figure 2-2 Fasten the Switch in the rack

POWER

2468

13579111315

1012141620

17192123

182224

FAN

GSW-2457

24-Port Gigabit Ethernet Switch

10121416

9111315

18202224

17192123

Link

Act

1000Mbps

2468

1357

POWER

2468

13579111315

1012141620

17192123

182224

FAN

GSW-2457

24-Port

Gigabit

Ethernet

Switch

10121416

9111315

18202224

17192123

Link

Act

1000Mbps

2468

1357

GSW-1657/2457 Gigabit Ehternet Switch

2.3 Power On

GSW-1657/GSW-2457 16/24-port Gigabit Ethernet Switch is powered by AC

power supply. Powering on the Switch, it will automatically initialize and

its LED indicators should respond as follows:

All of the Link/Act and 1000Mbps LED indicators will flash momentarily

for one second, which represent a resetting of the system.

The Power indicator will light up.

The FAN LED indicators will light up.

If the LED indicators don't respond as described above, please check the

power supply and connection.

Chapter 3: Identifying External Components

This Chapter describes the front panel, rear panel and LED indicators

of the Switch. GSW-1657 and GSW-2457 just differ in the number of LED

indicators and ports and all figures in this guide are of GSW-2457.

3.1 Front Panel

The front panel of the GSW-2457 consists of switch LED indicators, 24

10/100/1000Mbps RJ-45 ports.

Figure 3-1 GSW-2457 Switch Front Panel sketch

3.2 Rear Panel

The rear panel of the GSW-2457 only features a power receptacle, which is

an AC power receptacle. Connect the female of the power cord head here,

and the male head to the AC power outlet.

POWER

246 8

1 3 5 7 9 11 13 15

10 12 14 16 20

17 19 21 23

18 22 24

FAN

GSW-2457 24-Port Gigabit Ethernet Switch

10 12 14 16

911 13 15

18 20 22 24

17 19 21 23

Link

Act

1000Mbps

2 4 68

1 3 57

GSW-1657/2457 Gigabit Ehternet Switch User's Guide

Figure 3-2 GSW-2457 Switch Rear Panel sketch

3.3 LED Indicators

The LED indicators include Power, FAN, Link/Act and 1000Mbps LED

indicators, which are used for monitoring and pre-troubleshooting of the

Switch. The following section shows the LED indicators for the switch

along with an explanation of each indicator.

Figure 3-3 GSW-2457 Switch LEDs sketch

Power LED: This indicator will light solid red when the Switch

powers up. If the LED is not lit, please check the power supply and

connection.

FAN LED: This indicator will light solid green when the corresponding

cooling fan works properly.

Link/Act LED: This indicator will light solid green when the

corresponding port is connected to another device and will flash

green when data is being transmitted or received on the working

connection.

1000Mbps LED: This indicator will light solid green when the

corresponding port is connected to a 1000Mbps device.

1 00 - 24 0 V ~ 50 -6 0 H z 0 .6 A

POWER

246 8

1 3 5 7 9 11 13 15

10 12 14 16 20

17 19 21 23

18 22 24

FAN

10 12 14 16

911 13 15

18 20 22 24

17 19 21 23

Link

Act

1000Mbps

2 4 68

1 3 57

GSW-1657/2457 Gigabit Ehternet Switch

Appendix A: Specications

General

Standards IEEE802.3 10Base-T

IEEE802.3u 100Base-TX

IEEE802.3ab 1000Base-T

Topology Star

Protocol CSMA/CD

Data Transfer Rate

Ethernet: 10Mbps (Half Duplex), 20Mbps (Full Duplex)

Fast Ethernet: 100Mbps (Half Duplex), 200Mbps (Full Duplex)

Gigabit Ethernet: 2000Mbps (Full Duplex)

Network Media

(Cable)

10Base-T: UTP category 3, 4, 5 cable (maximum 100m)

EIA/TIA-568 100 STP (maximum 100m)

100Base-TX: UTP category 5, 5e cable (maximum 100m)

EIA/TIA-568 100 STP (maximum 100m)

1000Base-T: UTP category 5, 5e cable (maximum 100m)

EIA/TIA-568 100 STP (maximum 100m)

Number of Ports 16/24 10/100/1000Mbps Auto-Negotiation RJ-45 ports

LED indicators Power, FAN, Link/Act, 1000Mbps

Transfer Method Store-and-Forward

MAC Address Learning

Automatically learning, automatically aging

Frame Filter Rate 10Base-T: 14880pps/Port

100Base-Tx: 148800pps/Port

1000Base-T: 1488000pps/Port

Frame Forward Rate

10Base-T: 14880pps/Port

100Base-Tx: 148800pps/Port

1000Base-T: 1488000pps/Port

Environmental and Physical

Dimensions 17.3×7.1×1.7in. (440×180×44mm) W×D×H

Power Supply Output

100-240V~ 50/60Hz 0.6A

Operating Temperature

0℃~40℃ (32oF~104oF)

Storage Temperature

-40℃~70℃ (-40oF~158oF)

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