GS748T Smart Switch Hardware Installation Guide NETGEAR, Inc.
© 2007 by Netgear Inc. All Rights reserved Trademarks NETGEAR, Netgear Inc., the NETGEAR logo, Auto Uplink, ProSafe, and Everybody’s connecting are trademarks or registered trademarks of Netgear, Inc. in the United States and/or other countries. Microsoft, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Other brand and product names are trademarks of their respective holders. Information is subject to change without notice. All rights reserved.
• • • 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 GS748T Gigabit Smart Switch is shielded against the generation of radio interference in accordance with the application of Council Directive 89/336/EEC, Article 4a.
used with approved antennas only. Any product changes or modifications will invalidate all applicable regulatory certifications and approvals FCC Guidelines for Human Exposure This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 cm between the radiator and your body. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
Contents About This Manual Chapter 1 Introduction Overview .........................................................................................................................1-2 Features .........................................................................................................................1-3 Package Contents ..........................................................................................................1-5 Chapter 2 Physical Description Front and Back Panels .............
Appendix A Troubleshooting Troubleshooting Chart ............................................................................................. A-1 Additional Troubleshooting Suggestions ....................................................................... A-2 Network Adapter Cards ........................................................................................... A-2 Configuration ...........................................................................................................
About This Manual The NETGEAR® GS748T Smart Switch™ Hardware Installation Guide describes how to install, configure, and troubleshoot the GS748T Gigabit Smart Switch. The information in this manual is intended for readers with intermediate computer and Internet skills. Conventions, Formats, and Scope The conventions, formats, and scope of this manual are described in the following paragraphs: • • Typographical Conventions.
GS748T Smart Switch Hardware Installation Guide • Scope. This manual is written for the GS748T Smart Switch according to these specifications: Product Version GS748T Gigabit Smart Switch Manual Publication Date January 2007 . Note: Product updates are available on the NETGEAR, Inc. website at http://kbserver.netgear.com/products/GS748T.asp. How to Use This Manual The HTML version of this manual includes the following: • Buttons at a time.
GS748T Smart Switch Hardware Installation Guide How to Print this Manual To print this manual, choose one of the following options: • Printing a Page from HTML. Each page in the HTML version of the manual is dedicated to a major topic. Select File > Print from the browser menu to print the page contents. • Printing from PDF. Your computer must have the free Adobe Acrobat reader installed in order to view and print PDF files. The Acrobat reader is available on the Adobe Web site at http://www.adobe.com.
GS748T Smart Switch Hardware Installation Guide Revision History Document Part Number Version Description Number 202-10232-01 1.0 Document created x v1.
Chapter 1 Introduction Congratulations on your purchase of the NETGEAR GS748T Gigabit Smart Switch! Your NETGEAR Switch is a state-of-the-art, high-performance, IEEE-compliant network solution designed for users who require a large number of ports and want the power of Gigabit connectivity to eliminate bottlenecks, boost performance, and increase productivity. There are 48 twisted-paired ports with 4 SFP GBIC slots on the front panel of the switch which support non-stop 10/100/1000 networks.
GS748T Smart Switch Hardware Installation Guide Overview Your NETGEAR GS748T Gigabit Smart Switch provides 48 twisted-pair ports with four built-in Small Form Factor (SFP) GBIC slots that support nonstop 10/100/1000M fiber networks. Using these Gigabit slots, you can create high-speed connections to a server or network backbone.
GS748T Smart Switch Hardware Installation Guide Features The following list identifies the key features of the NETGEAR GS748T Gigabit Smart Switch. • • • • • Forty-eight 10/100/1000 Mbps auto-sensing Gigabit-Ethernet switching ports Four SFP GBIC combo Gigabit Ethernet slots for optional fiber connectivity Reset Button Factory Defaults Button Administrative switch management • IEEE 802.1Q Tag VLAN with up to 48 VIDs ranging in 2 to 4K • • IEEE 802.
GS748T Smart Switch Hardware Installation Guide • • • • Full-duplex IEEE 802.3x pause frame flow control LED indicators for port status monitoring: • Power LED indicates power on/off status • • Link/Act LED indicates link status and activity SFP GBIC Link/Act LED indicates link status and activity Flexible installation: • Standalone desktop installation • 19-inch standard rack-mount Standard 1U case size 1-4 Introduction 1.
GS748T Smart Switch Hardware Installation Guide Package Contents Figure 1-1 shows the package contents of the NETGEAR GS748T Gigabit Smart Switch.
GS748T Smart Switch Hardware Installation Guide 1-6 Introduction 1.
Chapter 2 Physical Description This chapter describes the hardware features of the NETGEAR GS748T Gigabit Smart Switch. Topics include: • • • • • • Front and back panels 10/100/1000 Mbps auto-sensing RJ-45 ports SFP GBIC Module bay LED descriptions Reset button Factory defaults button Front and Back Panels Figure 2-1 and Figure 2-2 show the key components on the front and back panels of the NETGEAR GS748T Gigabit Smart Switch.
GS748T Smart Switch Hardware Installation Guide The front panel contains RJ-45 jacks with LEDs and 4 SFP GBIC module bays. The rear panel has a standard AC power receptacle for accommodating the supplied power cord. 10/100/1000 Mbps RJ-45 Ports The 48 10/100/1000 Mbps, auto-sensing RJ-45 ports of the GS748T Gigabit Smart Switch are seen in Figure 2-1.
GS748T Smart Switch Hardware Installation Guide Table 2-1.
GS748T Smart Switch Hardware Installation Guide Figure 2-3 Reset Button of the GS748T Gigabit Smart Switch Restore Factory Defaults Button The Restore Factory Default button of the GS748T Smart Switch enables you to clear the current settings and return the switch to its factory default configuration. This function clears all settings, including the password, VLAN settings, and port configurations.
GS748T Smart Switch Hardware Installation Guide Figure 2-4 Restore Factory Defaults Button of the GS748T Gigabit Smart Switch Physical Description 2-5 v1.
GS748T Smart Switch Hardware Installation Guide 2-6 Physical Description v1.
Chapter 3 Applications Your NETGEAR GS748T Gigabit Smart Switch is designed to provide flexibility in configuring your network connections. It can be used as your only network traffic-distribution device or with added 10 Mbps, 100 Mbps, 10/100 Mbps, and 1000 Mbps hubs and switches. This chapter shows how the switch can be used in various network environments.
GS748T Smart Switch Hardware Installation Guide Backbone Switching You can use your GS748T Gigabit Smart Switch as a backbone switch in a small network that gives users high-speed access to servers and other network devices. Figure 3-2 Example of Backbone Switching 3-2 Applications v1.
Chapter 4 Installation This chapter describes the installation procedures for your NETGEAR GS748T Gigabit Smart Switch. Switch installation involves the following steps: 1. Preparing the site 2. Installing the switch 3. Checking the installation 4. Connecting devices to the switch 5. Installing an SFP GBIC module 6. Applying AC power 7.
GS748T Smart Switch Hardware Installation Guide Table 4-1. Site Requirements (continued) Temperature: Install the switch in a dry area, with ambient temperature in the range 0–55ºC (32–131ºF). Keep the switch away from heat sources such as direct sunlight, warm air exhausts, hot-air vents, and heaters. Operating humidity: The installation location should have a maximum relative humidity of 90%, non-condensing.
GS748T Smart Switch Hardware Installation Guide 4. Support the weight of the switch and use four pan-head screws with nylon washers to attach it to the rack; use a #2 Phillips screwdriver to tighten the screws. Figure 4-1 Mounting the Switch in a Rack Step 3: Checking the Installation Before you apply power, inspect the equipment thoroughly to: • Verify that all cables are installed correctly.
GS748T Smart Switch Hardware Installation Guide Figure 4-2 Connecting Devices to the Switch Connect each device to an RJ-45 network port on the switch’s front panel (see Figure 4-2) using a Category 5 (Cat5) unshielded twisted-pair (UTP) cable with RJ-45 connectors. Note: Ethernet specifications limit the cable length between the switch and the attached device to 100 m (328 ft.).
GS748T Smart Switch Hardware Installation Guide Figure 4-3 Installing a SFP GBIC Module into GS748T Step 6: Applying AC Power Because he NETGEAR GS748T Gigabit Smart Switch has no ON/OFF switch, AC power must be controlled by means of the IEC power cord connection. Select an appropriate unswitched, grounded AC facility outlet so as to avoid any future inadvertent power interruptions. Use the following procedure to apply AC power: 1.
GS748T Smart Switch Hardware Installation Guide Step 7: Management through a Web Browser or Utility Program (Initial Configuration) Your NETGEAR GS748T Gigabit Smart Switch has embedded management software for viewing, changing, and monitoring its activity and configuration. You need not use this management software for it to function as a simple switch.
Appendix A Troubleshooting This chapter provides information about troubleshooting the NETGEAR GS748T Gigabit Smart Switch. Information is supplied as: • • A Troubleshooting chart Additional troubleshooting suggestions Troubleshooting Chart Table A-1 lists symptoms, causes, and solutions of possible problems. Table A-1.
GS748T Smart Switch Hardware Installation Guide Table A-1. Troubleshooting Chart (continued) Symptom Cause Solution A segment or device is One or more devices not recognized as part of are not properly the network connected, or cabling does not meet Ethernet guidelines Verify that the cabling is correct. Be sure all connectors are securely positioned in the required ports.
Appendix B Technical Specifications This appendix provides technical specifications for the NETGEAR GS748T Gigabit Smart Switch. Network Protocol and Standards Compatibility IEEE 802.3 10BASE-T IEEE 802.3u 100BASE-TX IEEE 802.3ab 1000BASE-T IEEE 802.3z 1000Base-X IEEE 802.3x flow control Management IEEE 802.1Q Static VLAN (Up to 256) Port-based VLAN (Up to 48) IEEE 802.1p Class of Service (CoS) Port-based QoS (Port default priority; options: High/Normal/Low/Lowest) Port Trunking - Manual as per IEEE802.
GS748T Smart Switch Hardware Installation Guide Performance Specifications Forwarding modes: Store-and-forward Bandwidth: 96 Gbps Network latency: Less than 20 microseconds for 64-byte frames in store-and-forward mode for 100 Mbps to 100 Mbps transmission Buffer memory: 512 KB embedded memory per unit Address database size: 8,000 media access control (MAC) addresses per system Mean Time Between Failure (MTBF): 108,016 hours (~12 years) Power Supply Power Consumption: 90 W maximum 100–240VAC/50–60 Hz univer
GS748T Smart Switch Hardware Installation Guide Electromagnetic Immunity EN 55022 (CISPR 22), Class A Safety CE mark, commercial CUL 60950 (Listed)/ EN60950 (Low Voltage Directive)page 3, see page 3, see Modules AGM731F 1000BASE-SX SFP GBIC for multimode fiber AGM732F 1000BASE-LX SFP GBIC for single mode fiber Technical Specifications B-3 v1.
GS748T Smart Switch Hardware Installation Guide B-4 Technical Specifications v1.
Appendix C Glossary Table C-1. Glossary 10BASE-T The IEEE specification for 10 Mbps Ethernet over Category 3, 4, or 5 twisted-pair cable. 100BASE-FX The IEEE specification for 100 Mbps Fast Ethernet over fiber-optic cable. 100BASE-TX The IEEE specification for 100 Mbps Fast Ethernet over Category 5 twistedpair cable. 1000BASE-SX The IEEE specification for 1000 Mbps Gigabit Ethernet over fiber-optic cable.
GS748T Smart Switch Hardware Installation Guide Table C-1. Glossary Ethernet A LAN specification developed jointly by Xerox, Intel and Digital Equipment Corporation. Ethernet networks transmit packets at a rate of 10 Mbps. Fast Ethernet An Ethernet system that is designed to operate at 100 Mbps. Gigabit Ethernet An Ethernet system that is designed to operate at 1000 Mbps (1 Gbps).
GS748T Smart Switch Hardware Installation Guide Table C-1. Glossary Loop An event that occurs when two network devices are connected by more than one path, thereby causing packets to repeatedly cycle around the network and not reach their destination. MAC Media Access Control. A protocol specified by the IEEE for determining which devices have access to a network at any one time. MAC address Media Access Control address; also called hardware or physical address.
GS748T Smart Switch Hardware Installation Guide C-4 Glossary v1.
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