Netgear GS524T User's Manual
Contents
1. 6352410222 2 22 2002 9 40 AM Em 1 NETGEAR SIR Copper Gigabit Switch Installation Guide 6352410222 2 22 2002 9 40 AM En 2 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 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 l mporter It is hereby certified that the NETGEAR Model GS524T Copper Gigabit Switch has been suppressed in accordance with the conditions set out in the BMP T 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 P lease 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 Voluntar2. 65352410222 2 22 2002 9 40 AM Hm 19 Refer to Figure 4 2 when connecting the switch Key 1000 Mbps 100 Mbps 10 Mbps Figure 4 2 Connecting to the Model GS524T Switch Verifying Installation When power has been applied to the switch verify that e The green power LED on the front panel is on e The green link LED on each connected port is on W hen the switch is connected and operating refer to Table 2 1 LED Descriptions for information about the LE Ds and their activity installation 4 3 G5524T0222 2 22 2002 9 40 AM HH 20 a CHAPTER 5 TROUBLESHOOTING This chapter provides information about troubleshooting the NETGEAR M odel GS524T Copper Gigabit Switch Table 5 1 lists symptoms causes and solutions of possible problems Table 5 1 Troubleshooting Information Solution Symptom Power LED is off No power is received at the switch Check the power cord connections for the switch and the connected device M ake sure all cables used are correct and comply with Ethernet specifications 1000M or 100M LED is off or intermittent Port connection is not functioning Check the crimp on the connectors and make sure that the plug is properly inserted and locked into the port at both the switch and the connecting device M ake sure all cables used are correct and comply with Ethernet specification
3. Figure 2 2 RJ 45 Connector with Built in LEDs Auto Uplink To simplify the procedure for attaching devices all RJ 45 ports on the GS524T Switch support Auto U plink This technology allows you to attach devices to the RJ 45 ports using either straight through or crossover cables W hen you insert a cable into the switch s RJ 45 port the switch automatically e Senses whether the cable is a straight through or crossover cable and e Determines whether the link to the attached device requires a normal connection such as when connecting the port to a PC or an uplink connection such as when connecting the port to a router switch or hub After detecting this information the switch automatically configures the RJ 45 port to enable communications with the attached device without requiring user interven tion In this way the Auto U plink technology compensates for setting uplink connec tions while eliminating concern about whether to use crossover or straight through cables when attaching devices physical description 2 2 6352410222 2 22 2002 9 40 AM B13 6 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 con
4. 100 Mbps to 1000 Mbps 3 2 CHAPTER 4 Installation Preparing the Site 4 1 Installing the Switch on a Flat Surface 4 2 Installing the Switch in a Rack 4 2 Connecting Devices to the Switch 4 2 Verifying Installation 4 3 CHAPTER 5 Troubleshooting contents v 6352410222 2 22 2002 9 40 AM Em 6 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 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 contents vi 6352410222 2 22 2002 9 40 AM Bim 7 0 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 M odel 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 M odel GS524T Switch Used as a Desktop Switch 3 1 Figure 3 2 Model GS524T Switch Used as a Segment Switch 3 2 Figure 4 1 Attaching M ounting
5. for the NETGEAR M odel 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 The RJ 45 connector is used to connect stations hubs and switches through UTP cable it supports 10 M bps 100 M bps or 1000 M bps data transmission The RJ 45 plug and RJ 45 connector are both illustrated in Figure B 1 es uu 8 1 Key 1 to 8 pin numbers Figure B 1 RJ 45 Plug and RJ 45 Connector with Built in LEDs connector pin assignments B 1 6352410222 2 22 2002 9 40 AM HH 26 Table B 1 lists the pin assignments for the 10 100 1000M bps RJ 45 plug and the RJ 45 connector Table B 1 10 100 1000 Mbps RJ 45 Plug and RJ 45 Connector Pin Assignments Description Data Data Data Data Data Data Data Data 1 2 3 6 4 5 7 8 connector pin assignments B 2 G5524T0222 2 22 2002 9 40 AM HH 27 APPENDIX C CABLING GUIDELINES This appendix provides specifications for cables used with the NETGEAR M odel GS524T Copper Gigabit Switch Using 1000BASE T Gigabit Ethernet over Category 5 Cable Overview When using the 1000BASE T standard the limitatio
6. illustrates crossover twisted pair cable Normal or MDI X port as on a hub or switch 3 6 Pin numbers K B 1 2 Figure C 2 Crossover Twisted Pair Cable cabling guidelines C 5 G5524T0222 2 22 2002 9 40 AM HH 32 Patch Panels and Cables If you are using patch panels make sure that they meet the 100BASE TX require ments 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 87654321 Six 87654321 L 5525 1 Key 1 RJ 45 plug 2 Category 5e UTP patch cable Figure C 3 Category 5e UTP Patch Cable with Male RJ 45 Plug at Each End Note Flat silver satin telephone cable may have the same RJ 45 plug However using telephone cable will result in excessive collisions and cause the attached port to be partitioned or disconnected from the network cabling guidelines C 6 G5524T0222 2 22 2002 9 40 AM Bi 33 cabling guidelines C 7 6352410222 2 22 2002 9 40 AM Em 34 cb NETGEAR NETGEAR Inc 4500 Great America Parkway Santa Clara CA 95054 USA Phone 1 888 NETGEAR www NETGEAR com G Ss 5 2 4 E M N 3 A
7. kit for 19 inch rack installation Warranty Owner Registration Card Support Information Card e Power cord introduction 1 2 6352410222 2 22 2002 9 40 AM Em 11 cp CHAPTER 2 PHYSICAL DESCRIPTION This chapter describes the hardware features of the NETGEAR M odel GS524T Copper Gigabit Switch Front Panel The front panel of the Model GS524T switch contains the following LEDs that corre spond to each network port FDX COL full duplex collision Activity RX TX 10M bps E ach network port has its own link and speed LE Ds located above each port Activity 10Mbps LEDs Network ports Power LED FDX COL LEDs Link and Speed LEDs Figure 2 1 Front Panel of the Model GS524T Switch physical description 2 1 G5524T0222 2 22 2002 9 40 AM Hm 12 RJ 45 Ports The M odel GS524T switch has 24 auto sensing 10 100 1000 Mbps UTP ports Each port can operate at 1000 M bps full duplex mode 100 M bps full half duplex mode or 10M bps 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 o a 735EA E Key 1 1000M Link LED 2 100M Link LED
8. patch and equipment cords The maximum basic link length is 295 feet 90 m cabling guidelines C 1 a G5524T0222 2 22 2002 9 40 AM HH 28 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 AII 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 The factors that will affect the return loss are e the number of transition points as there is a connection via an RJ 45 to another connector a patch panel or a piece of equipment at each transition point removal of the jacket that surrounds the four pairs of twisted cable It is highly recommended that where RJ 45 connections are made this is minimized to 1 1 4 inch 32 mm pair untwist of any of the twisted pairs It is important that this be minimized to 3 8 inch 10 mm where RJ 45 connections are made e cabling or bundling of multiple Category 5 cable This is regulated by ANSI EIA TIA 568A 3 and can adversely affect all parameters of the cabling if not correctly implemented Near E nd Cross Talk NEXT This is a measure of the signal coupli
9. Brackets 4 2 Figure 4 2 Connecting to the M odel GS524T 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 5e UTP Patch Cable with Male RJ 45 Plug at Each End C 6 contents vii 6352410222 2 22 2002 9 40 AM Em 8 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 Electrical Requirements of Category 5 Cable C 4 contents viii 6352410222 2 22 2002 9 40 AM Em 9 CHAPTER 1 INTRODUCTION 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 intercon nect 10 100 1000 megabits per second M bps workgroups using copper Gigabit links Features The M odel GS524T switch has the following key features e 24 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 32 000 media access control MAC addresses that is the switch can support networks with as many as 32 000 devices e Address aging function to automatically track ch
10. anges in network configuration e Protocol independence and compatibility with all common protocols such as TCP IP Netware DE CNet Microsoft Networks and AppleTalk e 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 e Wire speed filtering and forwarding of the traffic Store and forward intelligent processing to minimize erroneous packets on the net work e Easy Plug and Play installation with no software to configure which saves time and minimizes the potential for configuration errors e Auto Uplink in all ports to make the right connection e Auto negotiation with link partners to speeds of 10 100 or 1000M bps on all ports Flow control traffic management to ensure no packets are dropped if there are back ups or bottlenecks in the network introduction 1 1 G5524T0222 2 22 2002 9 40 AM HE 10 Package Contents Figure 1 1 illustrates the M odel GS524T switch package contents Rubber power footpads cord Rack mount kit Installation Guide e Warranty amp Owner gt Registration Card Support Information Card Figure 1 1 Model GS524T Switch Package Contents Verify that your package contains the following e Model GS524T switch e Rubber footpads for tabletop installation e The Installation Guide e Rack mount
11. consisting of either two pair or four pair twisted insulated copper conductors bound in a single plastic sheath Category 5 cable is certified up to 100 MHz bandwidth 100BASE TX operation uses one pair of wires for transmission and the other pair for receiving and for collision detection When installing Category 5 UTP cabling use the following guidelines to ensure that your cables perform to the following specifications Certification M ake sure that your Category 5 UTP cable has completed the U nderwriters Laboratories UL or Electronic Testing Laboratories ETL certification process e Termination method To minimize cross talk noise maintain the twist ratio of the cable up to the point of termination untwist at any RJ 45 plug or patch panel should not exceed 0 5 inch 1 5 cm cabling guidelines C 3 a G5524T0222 2 22 2002 9 40 AM HH 30 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 e 20 ft 6 m between the hub or switch and the patch panel if used e 295 ft 90 m from the wiring closet to the wall outlet e 10ft 3m from the wall outlet to the desktop device The patch panel and other connecting hardware must meet the requirements for 100 M bps operation Category 5 Only 0 5 inch 1 5 cm of untwist in the wire pair is allowed at any te
12. equate airflow in room or wiring closet Operating conditions At least 6 ft 1 83 m to nearest source of electromagnetic noise such as photocopy machine or arc welder Power Adequate power source within 6 ft 1 83 m Checking Package Contents Unpack the contents of the package and verify them against the following list e NETGEAR Model GS524T Gigabit Ethernet Switch Self adhesive rubber footpads for desktop installation Rack Mount Kit for rack installation AC power cord Warranty amp Owner Registration Card installation 4 1 G5524T0222 2 22 2002 9 40 AM B18 Thelnstallation Guide e 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 Figure 4 1 Attaching Mounting Brackets Connecting Devices to the Switch To connect the switch 1 Connect the devices to the network ports on the switch using Category 5 Cat5 or Category 5e Cat5e UTP cable Note Ethernet specifications limit the cable length between your PC or server and the switch to 100 m 2 Connect one end of the AC power adapter cable to the power receptacle on the rear panel of the switch and the other end of the power adapter cable to the wall outlet installation 4 2
13. ere 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 e 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 and EN 55 024 Statements This is to certify that the Model GS524T 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 and EN 55 024 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 M odel GS524T 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 Reglement sur le brouil
14. igure 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 Server Server y Server with GA622T Gigabit network card FR314 router A Internet M odel GS524T switch EIA CCCA CCA AS Key 1000 Mbps 100 Mbps 10 Mbps FS518T switch Figure 3 2 Model GS524T Switch Used as a Segment Switch applications 3 2 G5524T0222 2 22 2002 9 40 AM HE 17 CHAPTER 4 INSTALLATION This chapter describes the installation procedures for the NETGEAR M odel GS524T Copper Gigabit Switch Preparing the Site Before you begin installing your switch prepare the installation site M ake sure your operating environment meets the operating environment requirements of the equip ment listed inTable 4 1 Table 4 1 Operating E nvironment Requirements Characteristic Requirements Temperature Ambient temperature between 0 and 402C 32 and 1042F No nearby heat sources such as direct sunlight warm air exhausts or heaters Operating humidity M aximum relative humidity of 90 noncondensing Ventilation M inimum 2 inches 5 08 cm on all sides for cooling Ad
15. lage radio lectrique du minist re des Communications Cet appareil num rique NETGEAR Model GS524T Copper Gigabit Switch respecte les limites de bruits radio lectriques visant les appareils num riques de classe A prescrites dans le R glement sur le brouillage radio lectrique du minist re des Communications du Canada 6352410222 2 22 2002 9 40 AM En 4 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 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 E xplorer or Netscape are required 6352410222 2 22 2002 9 40 AM EH 5 CONTENTS CHAPTER 1 Introduction Features 1 1 Package Contents 1 2 CHAPTER 2 Physical Description Front Panel 2 1 RJ 45 2 2 Auto uplink 2 2 LEDs 2 4 Rear Panel 2 4 CHAPTER 3 Applications Desktop Switching 3 1 Segment Switching and Bridging from 10 M bps or
16. nd maximum 10 M bps Network latency using 64 byte packets 30 microseconds maximum Address database size 32 000 MAC addresses Addressing 48 bit MAC address Forwording M ode Store amp Forward technical specifications A 1 G5524T0222 2 22 2002 9 40 AM HH 23 Interface RJ 45 Connectors for 10BASE T Ethernet 100BASE TX Fast Ethernet and 1000BASE T Gigabit Ethernet Power Consumption 75W 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 Ib 2 3 kg Environmental Specifications Operating Temperature 0 to 40 C 32 to 1042F Operating Humidity 90 maximum relative humidity noncondensing Storage Temperature 202 to 702C 4 to 150 F Storage H umidity 95 maximum relative humidity noncondensing E lectromagnetic Compliance CE mark commercial FCC Part 15 Class A VCCI Class A EN 55022 CISPR 22 Class A EN 50082 1 EN 55024 technical specifications A 2 6352410222 2 22 2002 9 40 AM En 24 Safety Agency Approvals UL Listed UL 1950 cUL TUV Licensed EN 60 950 technical specifications A 3 G5524T0222 2 22 2002 9 40 AM HH 25 APPENDIX B CONNECTOR PIN ASSIGNMENTS This appendix provides information about the RJ 45 plug and the RJ 45 connector used
17. necting two RJ 45 ports on a GS524T Switch to a router containing a 4 port switch Figure 2 4 shows another scenario where a router with a 4 port switch con nects to a hub and to a GS524T Switch the hub and switch in turn connect back to the same router creating multiple active paths between all three devices Model GS524T COCSSCCSSOCCNE CECCACONSCCNE FR314 Router Figure 2 3 Warning Creating loops disables your network Example 1 EN524 Hub Model GS524T Figure 2 4 Warning Creating loops disables your network Example 2 hysical description _2 3 6352410222 2 22 2002 9 40 AM Em 14 LEDs Table 2 1 describes the activity of the LEDs Table 2 1 LED Descriptions Activity Description Power is supplied to the switch Power is disconnected FDX COL On Off Blinking The port is operating in full duplex mode The port is operating in half duplex mode 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 Activity Blinking 10M On Off Packet transmission or reception is occurring on the port A valid 10 Mbps link is established on the port No Activity on the port On Off A valid 1000 M bps link is established on the port A link is not established on the port On Off Rear Panel A valid 100 M bps link is established on the p
18. ng from one wire to another within a cable assembly or among cables within a bundle NEXT measures the amount of cross talk disturbance energy that is detected at the near end of the link the end at which the transmitter is located NEXT measures the amount of energy that is returned to the sender end The factors that affect NEXT and cross talk are exactly the same as outlined in the Return Loss section The cross talk performance is directly related to the quality of the cable installation cabling guidelines C 2 G5524T0222 2 22 2002 9 40 AM HH 29 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 TIA 568 A 1995 or ISO IEC 11801 1995 Category 5 specifications Install Category 5e cable where possible including patch panel cables M inimize transition points Jacket removal and untwist lengths Bundling of cables must be properly installed in order to meet the requirements in ANSI EIA TIA 568A 3 Fast Ethernet Cable Guidelines Fast Ethernet uses UTP cable as specified in the IEEE 802 3u standard for 100BASE TX The specification requires Category 5 UTP cable
19. ns of cable installations and the steps necessary to ensure optimum performance must be considered The most important components in your cabling system are patch panel connections twists of the pairs at connector transition points the jacket around the twisted pair cable bundling of multiple pairs on horizontal runs and punch down blocks All of these will affect the performance of 1000BASE T technology if not correctly imple mented The following sections are designed to act as a guide to correct cabling for 1000BASE T Cabling The 1000BASE T product is designed to operate over Category 5 cabling but to further enhance the operation the cabling standards have been amended The latest standard is Category 5e which defines a higher level of link performance than is available with Category 5 cable If installing new cable we recommend using Category 5e cable since it costs about the same as Category 5 cable and will increase performance If using the existing cable be sure to have the cable plant tested by a professional who can verify that it meets or exceeds either ANSI EIA TIA 568 A 1995 or ISO IEC 11801 1995 Category 5 specifications Length The maximum distance limitation between two pieces of equipment is 100 m as per the original E thernet specification The end to end link is called the channel TSB 67 defines the Basic Link which is the portion of the link that is part of the building infrastructure This excludes
20. ort A link is not established on the port As illustrated in Figure 2 5 the rear panel of the M odel GS524T switch has fans for cool ing and a standard AC Power Receptacle for the supplied power cord Fans AC power Receptacle 100 240 VAC 50 60 He Figure 2 5 Rear Panel of the Model GS524T Switch physical description 2 4 G5524T0222 2 22 2002 9 40 AM Hm 15 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 M odel GS524T switch used as a desktop switch to build a powerful network that enables users to have 1000 M bps access to a file server If a full duplex adapter card is installed in the server or PC a 2000 M bps connec tion will be provided to each server and PC Server 1 Server2 Server 3 Key or E Servers with e 1000 Mbps JG GA622T Gigabit 100 Mbps N network cards 10 Mbps Model GS524T a Switch Internet 5 PCs with J GA302T Gigabit network cards PC PC PC PC Figure 3 1 Model GS524T Switch Used as a Desktop Switch applications 3 1 6352410222 2 22 2002 9 40 AM Hm 16 Segment Switching and Bridging from 10 Mbps or 100 Mbps to 1000 Mbps The M odel GS524T switch as illustrated in F
21. rmination point Category 5 Cable Specifications Table C 1 lists the electrical requirements of Category 5 UTP cable Table C 1 Electrical Requirements of Category 5 Cable Specification Category 5 Cable Requirements Number of pairs Four Impedance 100 Q 15 Mutual capacitance at 1 KHz lt 5 6 nF per 100 m M aximum attenuation dB per 100 m at 20 C at 4 MHz 8 2 at 31 MHz 11 7 at 100 MHz 22 0 NEXT loss dB minimum at 16 M Hz 44 at 31 MHz 39 at 100 MHz 32 cabling guidelines C 4 6352410222 2 22 2002 9 40 AM Em 31 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 M DI or uplink ports M ost repeaters and switch ports are configured as media dependent interfaces with built in crossover ports called M DI X or normal ports Auto Uplink automatically senses which connection M DI or M DI X is needed and makes the right connection Figure C 1 illustrates straight through twisted pair cable Key A Uplink or MDI port as on a PC B Normal or MDI X port as on a hub or switch 1 2 3 6 Pin numbers Figure C 1 Straight Through Twisted Pair Cable Figure C 2
22. s See Appendix C Check for a defective adapter card cable or port by testing them in an alternate environment where all products are functioning File transfer is slow Half or full duplex M ake sure the remote link partner is set to or performance degradation is a problem setting on the switch and the connected device are not the same auto negotiate A segment or device is not recognized as part of the network One or more devices are not properly connected or cabling does not meet E thernet guidelines Verify that the cabling is correct Be sure all cable connectors are securely positioned in the required ports Equipment may have been accidentally disconnected COL LED is blinking yellow excessively troubleshooting 5 1 Collisions are occurring on the connected segment Duplex modes are mismatched Some collisions are normal when the connection is operating in half duplex mode Recheck the link partner settings 6352410222 2 22 2002 9 40 AM Em 21 Network Adapter Cards M ake 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 con nections and determine the problem by implementing the new changes one procedure at a time M ake sure that cable distances repeater limit
23. s and other physical aspects of the installation do not exceed the Ethernet limitations Switch Integrity If required verify the integrity of the switch by resetting the switch Turn power to the switch off and then back on If the problem continues and you have completed all the preceding diagnoses contact your NETGEAR point of sale representative Auto Negotiation Each port will negotiate the correct duplex mode and speed provided the link partner supports auto negotiation If the link partner does not support auto negotiation only the speed will be determined correctly and the duplex mode will default to half troubleshooting 5 2 G5524T0222 2 22 2002 9 40 AM HH 22 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 30 100BASE TX IEEE 802 3i 10BASE T IEEE 802 3x flow control Data Coding 1000 M bps with PAM 5 encoding 100 Mbps with MLT3 encoding 10 Mbps with M anchester encoding Performance Specifications Frame filter rate using 1 480 000 frames second maximum 1000 M bps 64 byte packets 148 000 frames second maximum 100 M bps 14 800 frames second maximum 10 M bps Frame forward rate using 1 480 000 frames second maximum 1000 M bps 64 byte packets 148 000 frames second maximum 100 M bps 14 800 frames seco
24. y 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 E lectronic Office M achines 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 6352410222 2 22 2002 9 40 AM Em 3 p 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 e 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 th
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