NETGEAR GS508T - Switch User manual

R
Copper Gigabit Switch
Installation Guide
8 PORT
10/100/1000 Mbps
GS 508T
MODEL

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© 2001 by NETGEAR, Inc. All rights reserved.
Trademarks
NETGEAR is a trademark of NETGEAR, Inc. All other trademarks and registered trademarks are the
property of their respective owners.
Statement of Conditions
In the interest of improving internal design, operational function, and/or reliability, NETGEAR reserves
the right to make changes to the products described in this document without notice.
NETGEAR does not assume any liability that may occur due to the use or application of the product(s)
or circuit layout(s) described herein.
Certificate of the Manufacturer/Importer
It is hereby certified that the NETGEAR Model GS508T Copper Gigabit Switch has been suppressed in
accordance with the conditions set out in the BMPT-AmtsblVfg 243/1991 and Vfg 46/1992.The opera-
tion of some equipment (for example, test transmitters) in accordance with the regulations may, however,
be subject to certain restrictions. Please refer to the notes in the operating instructions.
Federal Office for Telecommunications Approvals has been notified of the placing of this equipment on
the market and has been granted the right to test the series for compliance with the regulations.
Voluntary Control Council for Interference (VCCI) Statement
This equipment is in the first category (information equipment to be used in commercial and/or industrial
areas) and conforms to the standards set by the Voluntary Control Council for Interference by Data
Processing Equipment and Electronic Office Machines that are aimed at preventing radio interference in
commercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio inter-
ference may be caused to equipment such as radios and TV receivers.

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Federal Communications Commission (FCC) Compliance Notice: Radio Frequency Notice
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
• This device may not cause harmful interference.
• This device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment 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 pro-
tection 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 instruc-
tions, 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 interfer-
ence 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 which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
EN 55 022 Declaration of Conformance
This is to certify that the NETGEAR Model GS508T Copper Gigabit Switch is shielded against the
generation of radio interference in accordance with the application of Council Directive 89/336/EEC,
Article 4a. Conformity is declared by the application of EN 55 022 Class A (CISPR 22).
Warning: This is a Class A product. In a domestic environment, this product may cause
radio interference, in which case the user may be required to take appropriate measures.
Canadian Department of Communications Radio Interference Regulations
This digital apparatus (NETGEAR Model GS508T Copper Gigabit Switch) does not exceed the Class A
limits for radio-noise emissions from digital apparatus as set out in the Radio Interference Regulations of
the Canadian Department of Communications.
Règlement sur le brouillage radioélectrique du ministère des Communications
Cet appareil numérique (NETGEAR Model GS508T Copper Gigabit Switch) respecte les limites de
bruits radioélectriques visant les appareils numériques de classe A prescrites dans le Règlement sur le
brouillage radioélectrique du ministère des Communications du Canada.
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Customer Support
For assistance with installing and configuring your NETGEAR system or with questions or problems
following installation:
• Check the NETGEAR Web page at http://www.NETGEAR.com.
• Call Technical Support at the phone number listed on the Support Information Card that shipped with
your switch.
• Email Technical Support at [e-mail].
Defective or damaged merchandise can be returned to your point-of-purchase representative.
Internet/World Wide Web
NETGEAR maintains a World Wide Web home page that you can access at the universal resource locator
(URL) http://www.NETGEAR.com. A direct connection to the Internet and a Web browser such as
Internet Explorer or Netscape are required.

contents v
CONTENTS
CHAPTER 1
Introduction
Features 1-1
Package Contents 1-2
CHAPTER 2
Physical Description
Front Panel 2-1
LEDs 2-2
Rear Panel 2-2
CHAPTER 3
Applications
Desktop Switching 3-1
Segment Switching and Bridging from 100 Mbps to 1000 Mbps 3-2
CHAPTER 4
Installation
Preparing the Site 4-1
Installing the Switch on a Flat Surface 4-1
Installing the Switch in a Rack 4-2
Connecting Devices to the Switch 4-2
Verifying Installation 4-3
CHAPTER 5
Troubleshooting
APPENDIX A
Technical Specifications

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APPENDIX B
Connector Pin Assignments
RJ-45 Plug and RJ-45 Connector B-1
APPENDIX C
Cabling Guidelines
Using 1000BASE-T Gigabit Ethernet over Category 5 Cable C-1
Overview C-1
Cabling C-1
Length C-1
Return Loss C-2
Near End Cross Talk (NEXT) C-2
Patch Cables C-3
Conclusions C-3
Fast Ethernet Cable guidelines C-3
Category 5 Cable C-4
Category 5 Cable Specifications C-4
Twisted Pair Cables for 1000BASE-TX C-5
Patch Panel and cables C-6

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FIGURES
Figure 1-1. Model GS508T Switch Package Contents 1-2
Figure 2-1. Front Panel of the Model GS508T Switch 2-1
Figure 2-2. Rear Panel of the Model GS508T Switch 2-2
Figure 3-1. Model GS508T Switch Used as a Desktop Switch 3-1
Figure 3-2. Model GS508T Switch Used as a Segment Switch 3-2
Figure 4-1. Attaching Mounting Brackets 4-2
Figure 4-2. Connecting to the Model GS508T Switch 4-3
Figure B-1. RJ-45 Plug and RJ-45 Connector
with Built-in LEDs B-1
Figure C-1. Straight-through Twisted Pair Cable C-5
Figure C-2. Crossover Twisted Pair Cable C-5
Figure C-3. Category 5 UTP Patch Cable with
Male RJ-45 Plug at Each End C-6

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TABLES
Table 2-1. LED Descriptions 2-2
Table 4-1. Operating Environment Requirements 4-1
Table 5-1. Troubleshooting Information 5-1
Table B-1. 10/100/1000 Mbps RJ-45 Plug and RJ-45
Connector Pin Assignments B-2
Table C-1. Electrical Requirements of Category 5 Cable C-4

introduction 1-1
CHAPTER 1: INTRODUCTION
The NETGEAR Model GS508T 8-Port Copper Gigabit Switch provides you with a
low-cost, high-performance network solution and is designed to anchor and intercon-
nect 10/100/1000 megabits per second (Mbps) workgroups using copper Gigabit links.
Features
The Model GS508T switch has the following key features:
• Eight full-duplex copper Gigabit ports with standard RJ-45 connectors
• Automatic address learning function to build the packet-forwarding
information table
The table contains up to 8,000 media access control (MAC) addresses (that is, the
switch can support networks with as many as 8,000 devices).
• Full-duplex mode to double throughput of point-to-point connections by letting indi-
vidual ports transmit and receive concurrently when the other end also supports
full-duplex mode
• Wire-speed filtering and forwarding of the traffic with no delay
• Store-and-forward intelligent processing to minimize erroneous packets on the net-
work
• Easy Plug and Play installation with no software to configure, which saves time and
minimizes the potential for configuration errors
• Operation at speeds of 10, 100, or 1000Mbps on each port
• Flow control traffic management to ensure no packets are dropped if there are
back-ups or bottlenecks in the network
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introduction 1-2
Package Contents
Figure 1-1 illustrates the Model GS508T switch package contents.
Figure 1-1. Model GS508T Switch Package Contents
Verify that your package contains the following:
• Model GS508T switch
• Rubber footpads for tabletop installation
• The Installation Guide
• Rack mount kit for 19-inch rack installation
• Warranty & Owner Registration Card
• Support Information Card
• Power cord