R 24 PORT 10/100/1000 Mbps Copper Gigabit Switch Installation Guide MODEL GS 524T
© 2002 by NETGEAR, Inc. All rights reserved. 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 perspective 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.
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.
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 support@NETGEAR.com. Defective or damaged merchandise can be returned to your point-of-purchase representative.
CONTENTS CHAPTER 1 Introduction Features Package Contents 1-1 1-2 CHAPTER 2 Physical Description Front Panel RJ-45 Auto-uplinkTM LEDs Rear Panel 2-1 2-2 2-2 2-4 2-4 CHAPTER 3 Applications Desktop Switching Segment Switching and Bridging from 10 Mbps or 100 Mbps to 1000 Mbps 3-2 CHAPTER 4 Installation Preparing the Site Installing the Switch on a Flat Surface Installing the Switch in a Rack Connecting Devices to the Switch Verifying Installation 4-1 4-2 4-2 4-2 4-3 3-1 CHAPTER 5 Troubleshooting con
APPENDIX A Technical Specifications A-1 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 Overview Cabling Length Return Loss Near End Cross Talk (NEXT) Patch Cables Conclusions Fast Ethernet Cable guidelines Category 5 Cable Category 5 Cable Specifications Twisted Pair Cables for 1000BASE-TX Patch Panel and cables C-1 C-1 C-1 C-1 C-2 C-2 C-3 C-3 C-3 C-4 C-4 C-5 C-6 contents vi
FIGURES Figure 1-1. Model GS524T Switch Package Contents 1-2 Figure 2-1. Front Panel of the Model GS524T Switch 2-1 Figure 2-2. Rear Panel of the Model GS524T Switch 2-2 Figure 2-3. Warning! Creating loops disables your network (Example 1) 2-3 Figure 2-4. Warning! Creating loops disables your network (Example 2) 2-3 Figure 2-5 Rear Panel of the Model GS524T Switch 2-4 Figure 3-1. Model GS524T Switch Used as a Desktop Switch 3-1 Figure 3-2.
TABLES Table 2-1. LED Descriptions 2-4 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.
CHAPTER 1: INTRODUCTION R The NETGEAR Model GS524T 24-Port Copper Gigabit Switch provides you with a low-cost, high-performance network solution and is designed to anchor and interconnect 10/100/1000 megabits per second (Mbps) workgroups using copper Gigabit links. Features The Model GS524T switch has the following key features: • 24 full-duplex copper Gigabit ports with standard RJ-45 connectors • Automatic address learning function to build the packet-forwarding information table.
Package Contents Figure 1-1 illustrates the Model GS524T switch package contents. GS524T MODEL Ethernet 24PORT 10/100MbpsGigabit Fiber Switch Figure 1-1.
CHAPTER 2: PHYSICAL DESCRIPTION This chapter describes the hardware features of the NETGEAR Model GS524T Copper Gigabit Switch. Front Panel The front panel of the Model GS524T switch contains the following LEDs that correspond to each network port: FDX/COL (full-duplex/collision), Activity(RX/TX)/10Mbps . Each network port has its own link and speed LEDs (located above each port). GS524T MODEL Ethernet 24PORT 10/100MbpsGigabit Fiber Switch Link and Speed LEDs Figure 2-1.
RJ-45 Ports The Model GS524T switch has 24 auto-sensing 10/100/1000 Mbps UTP ports. Each port can operate at 1000 Mbps full-duplex mode, 100 Mbps full/half duplex mode, or 10Mbps full/half duplex mode, and provide a standard UTP for Category 5 or Category 5e cable. Figure 2-2 shows a RJ-45 connector. For further information about Category 5 cables and connectors, refer to Appendix B, “Connector Pin Assignments,” and Appendix C, “Cabling Guidelines.” The 1000BASE-T requires very careful cable installation.
Note: Using Auto Uplink to create multiple active paths between any two network devices can cause undesirable loops in the network, resulting in an endless broadcast traffic that disables your network. Loops occur when there are alternate routes between two network devices. In Figure 2-3, for example, a loop is created by connecting two RJ-45 ports on a GS524T Switch to a router containing a 4-port switch.
LEDs Table 2-1 describes the activity of the LEDs. Table 2-1. LED Descriptions Label Color Activity Description Power Green On Power is supplied to the switch. Off Power is disconnected. On The port is operating in full-duplex mode. FDX/COL Activity/ Green Off The port is operating in half-duplex mode. Yellow Blinking Data collisions are occurring on the port. In a full-duplex environment, there is no collision. In a half-duplex environment, some collisions are normal.
technology of the CHAPTER 3: APPLICATIONS This chapter presents an overview of the topologies possible by incorporating the NETGEAR Model GS524T Copper Gigabit Switch into your network. Desktop Switching Figure 3-1 illustrates the Model GS524T switch, used as a desktop switch to build a powerful network that enables users to have 1000 Mbps access to a file server. If a full-duplex adapter card is installed in the server or PC, a 2000 Mbps connection will be provided to each server and PC.
Segment Switching and Bridging from 10 Mbps or 100 Mbps to 1000 Mbps The Model GS524T switch, as illustrated in Figure 3-2, connects multiple power workgroups and servers using high-speed gigabit links. Each power workgroup is anchored by a NETGEAR Model FS518T switch. Other workgroups are connected by a NETGEAR FS524 switch. Because each copper link can be up to 100 m long, these workgroups can be located on separate floors.
CHAPTER 4: INSTALLATION This chapter describes the installation procedures for the NETGEAR Model GS524T Copper Gigabit Switch. Preparing the Site Before you begin installing your switch, prepare the installation site. Make sure your operating environment meets the operating environment requirements of the equipment listed in Table 4-1. Table 4-1. Operating Environment Requirements Characteristic Requirements Temperature Ambient temperature between 0 and 40ºC (32 and 104ºF).
• The Installation Guide • Support Information Card Installing the Switch on a Flat Surface To install the switch on a flat surface, be sure to attach the rubber footpads to the bottom of the switch. Installing the Switch in a Rack Refer to Figure 4-1 when installing the switch in a rack. 100/1000 Mbps Copper Gigabit Switch Ethernet Power MODEL GS516 T Figure 4-1. Attaching Mounting Brackets Connecting Devices to the Switch To connect the switch: 1.
Refer to Figure 4-2 when connecting the switch. Key 1000 Mbps 100 Mbps 10 Mbps 16P ORT 10/10 0Mbp sGiga bit Fibe r Swi tch Ethern et MODEL GS 50 8T Figure 4-2. Connecting to the Model GS524T Switch Verifying Installation When power has been applied to the switch, verify that: • The green power LED on the front panel is on. • The green link LED on each connected port is on.
CHAPTER 5: TROUBLESHOOTING This chapter provides information about troubleshooting the NETGEAR Model GS524T Copper Gigabit Switch. Table 5-1 lists symptoms, causes, and solutions of possible problems. Table 5-1. Troubleshooting Information Symptom Cause Solution Power LED is off. No power is received at the switch. Check the power cord connections for the switch and the connected device. Make sure all cables used are correct and comply with Ethernet specifications.
Network Adapter Cards Make sure the network adapter cards installed in the PCs are in working condition and the software driver has been installed. Configuration If problems occur after altering the network configuration, restore the original connections and determine the problem by implementing the new changes, one procedure at a time. Make sure that cable distances, repeater limits, and other physical aspects of the installation do not exceed the Ethernet limitations.
APPENDIX A: TECHNICAL SPECIFICATIONS This appendix provides technical specifications for the NETGEAR Model GS524T Copper Gigabit Switch. Network Protocol and Standards Compatibility IEEE 802.3ab 1000BASE-T IEEE 802.3u 100BASE-TX IEEE 802.3i 10BASE-T IEEE 802.
Interface RJ-45 Connectors for 10BASE-T Ethernet, 100BASE-TX Fast Ethernet, and 1000BASE-T Gigabit Ethernet Power Consumption 75 W Heat Radiation: 34.9812 Btu/hr Acoustic Noise: 50.2dB Input Voltage (Power Adapter) 100–240 V AC Physical Specifications Dimensions: 13.0 x 1.7 x 8.0 in.; 33.0 x 4.3 x 20.7 cm Weight: 5.3 lb; 2.
Safety Agency Approvals UL Listed (UL 1950), cUL TUV Licensed (EN 60 950) technical specifications A-3
APPENDIX B: CONNECTOR PIN ASSIGNMENTS This appendix provides information about the RJ-45 plug and the RJ-45 connector used for the NETGEAR Model GS524T Copper Gigabit Switch. RJ-45 Plug and RJ-45 Connector It is important that all 1000 BASE-T certified Category 5 or Category 5e cabling use RJ-45 plugs.The RJ-45 plug accepts 4-pair UTP or shielded twisted pair (STP) 100 ohm cable and connects into the RJ-45 connector.
Table B-1 lists the pin assignments for the 10/100/1000Mbps RJ-45 plug and the RJ-45 connector. Table B-1.
APPENDIX C: CABLING GUIDELINES This appendix provides specifications for cables used with the NETGEAR Model GS524T Copper Gigabit Switch. Using 1000BASE-T Gigabit Ethernet over Category 5 Cable Overview When using the 1000BASE-T standard, the limitations of cable installations and the steps necessary to ensure optimum performance must be considered.
Return Loss Return loss measures the amount of reflected signal energy resulting from impedance changes in the cabling link.The nature of 1000BASE-T renders this measurement very important; if too much energy is reflected back on to the receiver, the device will not perform optimally. All four pairs of the twisted pair are used by 1000BASE-T, unlike 10BASE-T and 100BASE-TX, which use only two of the four pairs of wires within the Category 5. It is important to ensure that all wires are tested.
Patch Cables When installing your equipment, replace old patch panel cables that do not meet Category 5e specifications. As pointed out in the NEXT section, this near end piece of cable is critical for successful operation. Conclusions For optimum performance of your 1000BASE-T product, it is important to fully qualify your cable installation and ensure it meets or exceeds ANSI/EIA/TIA568-A:1995 or ISO/IEC 11801:1995 Category 5 specifications.
Category 5 Cable Category 5 distributed cable that meets ANSI/EIA/TIA-568-A building wiring standards can be a maximum of 328 feet (ft) or 100 meters (m) in length, divided as follows: • 20 ft (6 m) between the hub or switch and the patch panel (if used) • 295 ft (90 m) from the wiring closet to the wall outlet • 10 ft (3 m) from the wall outlet to the desktop device The patch panel and other connecting hardware must meet the requirements for 100 Mbps operation (Category 5). Only 0.5 inch (1.
Twisted Pair Cables for 100 BASE-TX For two devices to communicate, the transmitter of each device must be connected to the receiver of the other device.The crossover function is usually implemented internally as part of the circuitry in the device. Computers and workstation adapter cards are usually media-dependent interface ports, called MDI or uplink ports. Most repeaters and switch ports are configured as media-dependent interfaces with built-in crossover ports, called MDI-X or normal ports.
Patch Panels and Cables If you are using patch panels, make sure that they meet the 100BASE-TX requirements. NETGEAR recommends Category 5e UTP cable for all patch cables and work area cables to ensure that your UTP patch cable rating meets or exceeds the distribution cable rating. To wire patch panels, you need two Category 5e UTP cables with an RJ-45 plug at each end, as shown in Figure C-3. 1 2 1 87654321 87654321 Key: 1 = RJ-45 plug 2 = Category 5e UTP patch cable 5525.1 Figure C-3.
cabling guidelines C-7
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