NETGEAR FS 726 User manual

FS
MODEL
726
FS
MODEL
750
Modular Fast Ethernet Switch
User‘s Guide

ii
Trademarks
NETGEAR® is a registered trademark of NETGEAR, Inc. in the United States and other countries. 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 FS726 Modular Fast Ethernet Switch and Model FS750
Modular Fast Ethernet Switch have been suppressed in accordance with the conditions set out in the BMPT-
AmtsblVfg 243/1991 and Vfg 46/1992.The operation 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 com-
mercial and/or industrial areas.
Consequently, when this equipment is used in a residential area or in an adjacent area thereto, radio interfer-
ence may be caused to equipment such as radios andTV receivers.
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 protection against
harmful interference in a residential installation.This equipment generates, uses, and can radiate radio fre-

iii
quency energy and, if not installed and used in accordance with the instructions,may cause harmful interfer-
ence 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 which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
EN 55024 Declaration of Conformity
This is to certify that the NETGEAR Model FS726 Modular Fast Ethernet Switch and Model FS750
Modular Fast Ethernet Switch are 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
55024 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
These digital apparatuses (NETGEAR Model FS726 Modular Fast Ethernet Switch and Model FS750 Modular
Fast Ethernet Switch) do 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
Ces appareils numériques (NETGEAR Model FS726 Modular Fast Ethernet Switch et Model FS750
Modular Fast Ethernet Switch) respectent 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.
• CallTechnical Support in North America at 1-888-NETGEAR. Our technicians are standing by to assist
you 24 hours a day, 7 days a week.If you are outside North America,please refer to the phone numbers
listed on the Support Information Card that shipped with your switch.
• E-mail 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 uniform 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.

vContents
CONTENTS
CHAPTER 1
Introduction 1-1
Description 1-1
Features 1-2
Key Features 1-2
Additional Features 1-3
Package Contents 1-5
CHAPTER 2
Physical Description 2-1
Front and Back Panels 2-1
10/100 Mbps RJ-45 Ports 2-3
LED Mode Button and LED Descriptions 2-4
Module Bays 2-5
Auto Uplink 2-5
Reset Button 2-7
CHAPTER 3
Applications 3-1
Desktop Switching 3-1
Segment Switching and Bridging from 10 Mbps to 100 Mbps 3-2
Media Compatibility and Conversion 3-2
CHAPTER 4
Installation 4-1
Preparing the Site 4-2
Installing the Switch 4-3
Installing the Switch on a Flat Surface 4-3
Installing the Switch in a Rack 4-3
Connecting Devices to the Switch 4-4
Using Gigabit Ethernet Modules 4-5
Checking the Installation 4-6
Applying AC Power 4-6

contents vi
CHAPTER 5
Troubleshooting Information 5-1
AdditionalTroubleshooting Suggestions 5-3
Network Adapter Cards 5-3
Configuration 5-3
Switch Integrity 5-3
Auto Negotiation 5-3
APPENDIX A
Technical Specifications A-1
Network Protocol and Standards Compatibility A-1
Data Rate A-1
Interface A-1
Performance Specifications A-2
Bandwidth A-2
Electrical Specifications A-3
Power Consumption A-3
Physical Specifications A-3
Environmental Specifications A-3
Electromagnetic Emissions A-4
Electromagnetic Susceptibility A-4
Safety Agency Approvals A-4
APPENDIX B
Connector Pin Assignments B-1
RJ-45 Plug and RJ-45 Connector B-1
Duplex SC Plug and Duplex SC Connector B-3

viicontents
APPENDIX C
Cabling Guidelines C-1
Fast Ethernet Cable Guidelines C-1
Category 5 Cable C-2
Category 5 Cable Specifications C-3
Twisted Pair Cables C-3
Patch Panels and Cables C-5
Using 1000BASE-T Gigabit Ethernet over Category 5 Cable C-5
Overview C-5
Cabling C-6
Length C-6
Return Loss C-6
Near End Crosstalk (NEXT) C-7
Patch Cables C-7
Conclusion C-7
Fiber Optic Cables C-8
Fiber Cable Specifications C-8
Gigabit Cable Guidelines C-8
INDEX I-1
FIGURES

figures viii
Figure 1-1. Package Contents 1-5
Figure 2-1. Front and Back Panels of the FS726 Switch 2-2
Figure 2-2. Front and Back Panels of the FS750 Switch 2-3
Figure 2-3. Creating Redundant Paths between
Network Devices (Example 1) 2-6
Figure 2-4. Creating Redundant Paths between
Network Devices (Example 2) 2-6
Figure 3-1. Example of Desktop Switching 3-1
Figure 3-2. Example of Segment Switching and Bridging 3-2
Figure 3-3. Example of Media Compatibility
and Conversion 3-3
Figure 4-1. Attaching Mounting Brackets 4-3
Figure 4-2. Connecting Devices to the Switch 4-4
Figure B-1. RJ-45 Plug and RJ-45 Connector
with Built-in LEDs B-1
Figure B-2 Duplex SC Cconnector and Duplex SC Plug B-3
Figure C-1. Straight-ThroughTwisted-Pair Cable C-4
Figure C-2. CrossoverTwisted-Pair Cable C-4
Figure C-3. Category 5 UTP Cable with
Male RJ-45 Plug at Each End C-5
TABLES

ixtables
Table 1-1. Key Features 1-2
Table 2-1. Front Panel LEDs 2-4
Table 4-1. Site Requirements 4-2
Table 5-1. Troubleshooting Information 5-1
Table B-1. 10/100 Mbps RJ-45 Plug and
RJ-45 Connector Pin Assignments B-2
Table B-2. 100/1000 Mbps RJ-45 Plug and
RJ-45 Connector Pin Assignments B-2
Table C-1. Electrical Requirements
of Category 5 Cable C-3
Table C-2. Electrical Requirements of
Fiber Optic Cable C-8
Table C-3. Gigabit Cable Guidelines C-8

1-1introduction
CHAPTER 1: INTRODUCTION
This installation guide describes the NETGEAR FS726 and FS750 Modular Fast
Ethernet Switches.
NETGEAR’s FS726 and FS750 are expandable, high-performance, IEEE-compliant
network switches designed for users who require a large number of ports and want the
high-speed capability of 10/100 switching to eliminate bottlenecks, boost performance,
and increase productivity. Both switches are designed with front module bays that will
accommodate either copper gigabit modules or fiber gigabit modules for high-speed
connection to a server or your network backbone.Built-in modularity gives you the flex-
ibility to buy according to your immediate needs,then add to your system later.You can
purchase the optimal combination of copper and fiber gigabit modules for your network
– both the same or one of each, as either will function in each module bay.To simplify
installation, both switch models are shipped ready for use,with no configuration
required. Everything necessary for setup comes in the box.
This chapter provides the following information:
• Description
• Features
• Package contents
Description
NETGEAR’s FS726 and FS750 Modular Fast Ethernet Switches are flexible, powerful,
and easy-to-use network solutions.Both switches have two front panel module bays that
can be used with gigabit uplinks to create a high-performance backbone connection.
Each module bay accepts either a copper Gigabit Ethernet module (1000BASE-T,