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LevelOne GSW-1657 User Manual

GSW-2457

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Type: User Guide
Category: Switch
Pages: 11
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User's Guide

16/24-port Gigabit Ethernet Switch

GSW-1657
GSW-2457

Ver.1.0.0-0803

 


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COPYRIGHT & TRADEMARKS

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.  

All rights reserved.

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.

 

¾

Increase the separation between the equipment and receiver.

 

¾

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

 

¾

which the receiver is connected.

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

 

¾

 


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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

 

¾

EN55024

 

¾

EN60950

 

¾

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.

 


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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

 


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1

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

 

¾

One power cord

 

¾

This User's Guide

 

¾

Rubber footpads for Desk-mount

 

¾

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

 

¾

  

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 

 


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2

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

 

¾

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

 

¾

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

 

¾

Full Duplex transfer mode for 1000Mbps

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

 

¾

for half-duplex transfer mode

Non-blocking switching architecture that forwards and filters packets 

 

¾

at full wire-speed for maximum throughput

Supports MAC address auto-learning and auto-aging

 

¾

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

 

¾

Rack-mountable steel case

 

¾

Internal power supply

 

¾

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.

 


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3

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

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FAN

GSW-2457 24-Port G

igabit Ethernet Swit

ch

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Link

Link

Act

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1000Mbps

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POWER

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FAN

GSW-2457 24-Port

 

Gigabit

 

Ethernet

 

Switch

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Link

Link

Act

Act

1000Mbps

1000Mbps

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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 

11 

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

The Power  indicator will light up. 

21 

The FAN LED indicators will light up.

31 

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

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FAN

GSW-2457 24-Port Gigabit Ethernet Switch

10 12 14 16

9 11 13 15

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17 19 21 23

Link

Link

Act

Act

1000Mbps

1000Mbps

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5

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 

 

¾

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 

 

¾

cooling fan works properly.

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

 

¾

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 

 

¾

corresponding port is connected to a 1000Mbps device.

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

POWER

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FAN

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Link

Link

Act

Act

1000Mbps

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6

GSW-1657/2457

Gigabit Ehternet Switch 

Appendix A: Specifications

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℃ (32

o

F~104

o

F)

Storage Temperature

-40℃~70℃ (-40

o

F~158

o

F)

 


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7

GSW-1657/2457

Gigabit Ehternet Switch User's Guide

Operating Humidity 10%~90% non-condensing

Storage Humidity 5%~95% non-condensing

Appendix B: Troubleshooting

1.     The Power LED is not lit

Make  sure  the  AC  power  cord  connected  the  Switch  with  power  source 

 

¾

properly.

Make sure the power source is ON.

 

¾

2.     The Link/Act LED is not lit when a device is connected to the corresponding 

port

Make sure that the cable connectors are firmly plugged into the Switch and 

 

¾

the device.

Make sure the connected device is turned on and working well.

 

¾

The cable must be less than 100 meters long(328 feet).

 

¾