NETGEAR EN516 Network Card User Manual
Contents
1. 8664FA Note Ethernet specifications limit the number of hubs with twisted pair links in any communication path to five as shown in the example When PC A communicates with PC B the communication path goes from hub 4 to hub 2 to hub 1 to hub 3 and then to hub 5 or five paths The following illustration shows cascading hubs together daisy chain style and indicates the setting of the Normal Uplink push button on each hub Model EN516 hub Normal Uplink 8665FA Model EN516 EN524 Ethernet Hub Installation Guide Connect to a Network Using the BNC Port The BNC port on the rear panel of the hub is used for connecting to a thin coaxial segment You can connect other Model EN516 or Model EN524 hubs servers workstations or other devices to the BNC port A BNC T connector is inserted in the port and the 50 Q terminator terminates the connection at each end device By using the BNC port for cascading you treat each connected hub as just another node on the coaxial segment The separation marks in the coaxial cable between the hubs in this illustration represent the incorporation of other devices and show that interconnection is not limited to hubs BNC T connector BNC 50 Qterminator BNC 50 Q terminator 8074FA minimum of 1 64 feet 0 5 m between any two stations and limit segments to 607 feet Note Ethernet specifications limit a BNC segment to 30 BNC connections specif2. NETGEAR MODEL EN516 EN524 Terie AL Installation Guide Start Here Congratulations on your purchase of the NETGEAR Model EN516 or Model EN524 Ethernet hub These hubs deliver standards based plug and play networking solutions for small businesses home offices and low density workgroups of larger companies T Features The Model EN516 and Model EN524 hubs have the following features Sixteen on the Model EN516 hub and twenty four on the Model EN524 hub vista 10BASE T network ports RJ 45 that provide 10 Mbps networking using simple unshielded twisted pair UTP wiring The vista network ports provide built in LED indicators for at a glance status checks AUI or coaxial BNC backbone support for connecting to an existing Ethernet segment or external transceiver or for network expansion by connecting multiple hubs together using twisted pair or coaxial cabling Uplink port for connecting to other hubs using simple straight through cables Built in 100 to 240 V AC switching power supply eliminating the need for bulky wall transformers Clear front panel light emitting diode LED indicators providing the individual ports and overall hub status Plug and play installation with no software to configure Complete hub functions including packet retiming collision detection preamble regeneration and fragment extension Automatic partitioning and reconnection of a port that has excessive collisio
3. The twisted pair cable extended from a 10BASE T port or UTP port is called a twisted pair segment and can be up to 100 meters m in length The 10BASE T ports with the exception of port 16 on the Model EN516 hub and port 24 on the Model EN524 hub are MDI X or Normal ports Use the following table as a guide for selecting the appropriate network cable Model EN516 hub Ports 1 15 PC server or router Straight through cable Ports 1 15 Hub or switch Crossover cable Model EN524 hub Ports 1 23 PC server or router Straight through cable Ports 1 23 Hub or switch Crossover cable Set the Normal Uplink Push Button If you are connecting to port 16 on the Model ENS16 hub or to port 24 on the Model EN524 hub use the following table Determine the type of cable to use and how to set the Normal Uplink push button for either port 16 or port 24 Connecting Port Connecting Device Cable Used Port 16 or port 24 set to Normal PC server or router Straight through cable Port 16 or port 24 set to Uplink Hub or switch Straight through cable Model EN516 EN524 Ethernet Hub Installation Guide You can cascade hubs together through any of the ports The following illustration shows cascading hubs together in a hierarchical star through the 10BASE T ports and indicates the setting of the Normal Uplink push button on each hub Normal Model EN524 hub Uplink Model EN516 hub
4. The NETGEAR Web page is at http NETGEAR baynetworks com Defective or damaged merchandise can be returned to your point of sale representative M E N 5 0 0 N A 0
5. an RJ 45 plug is used to connect workstations hubs and switches through unshielded twisted pair cable The RJ 45 connector accepts four pair Category 3 or Category 5 UTP cable Only two pairs are used for 10BASE T wiring 12345678 RJ 45 Connector Pin Assignment Normal Assignment Ports 1 15 on the Model EN516 hub Ports 1 23 on the Model EN524 hub Input Receive Data Uplink Assignment Port 16 on the Model EN516 hub Port 24 on the Model EN524 hub Output Transmit Data Input Receive Data Output Transmit Data Output Transmit Data Input Receive Data Output Transmit Data Input Receive Data 1 2 3 6 4 5 7 8 Not used Not used AUI Connector The AUI connector for the hub connects the hub through an external transceiver to other devices An inter repeater fiber link using a 10BASE F transceiver is an example of such an application AUI connector 1 8 00000000 o 0000000 i 15 9 8148EA AUI Connector Pin Assignment Signal 1 4 11 14 15 Ground 2 CI A 3 DO A 5 DI A 6 12V DC return 7 8 Not used 9 CI B 10 DO B 12 DI B 13 12 V DC 500 mA maximum Model EN516 EN524 Ethernet Hub Installation Guide BNC Connector The BNC connector for the hub supports 10 Mbps data transmission and connects the hub to other devices BNC connector Center co
6. 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 interference may be caused to equipment such as radios and TV receivers Federal Communications Commission FCC Compliance Notice Radio Frequency Notice 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 when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy If it is not installed and used in accordance with the instruction manual it may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case users will be required to take whatever measures may be necessary to correct the interference at their own expense EN 55 022 Statement This is to certify that the Model EN516 and Model EN524 Ethernet hubs are shielded against the generati
7. is positioned with at least 2 inches of space on all sides for ventilation To install the hub in a rack you need two Phillips screwdrivers one size for the screws that attach the brackets to the hub and another size for the screws that attach the brackets to the mounting rack Be sure to choose a location that is near the devices to be connected is close to an electrical outlet and provides at least 2 inches of space all around the hub for ventilation Model EN524 hub shown 8666FA 2 Connect a PC to the Hub You can connect PCs Apple Macintosh computers UNIX workstations or any device equipped with a 10BASE T Ethernet interface to the RJ 45 ports on your hub by using twisted pair Ethernet cables To connect any of the RJ 45 ports on your hub to a PC use a regular straight through UTP cable If you are connecting using port 16 on the Model EN516 hub or port 24 on the Model EN524 hub set the Normal Uplink push button to Normal Model EN524 hub shown 8667FA Note Ethernet specifications limit the cable length between your PC or server and the hub to 328 feet 100 meters in length Model EN516 EN524 Ethernet Hub Installation Guide Connect the Hub to a Network Cascading refers to connecting hubs together to increase the number of ports or the number of users supported on the network The 10BASE T BNC or AUI ports can be used to cascade hubs together Connect to a Network Using the 10BASE T Ports
8. meets the operating environment requirements of the equipment Characteristic Requirement Temperature Ambient temperature between 0 and 40 C 32 and 104 F No nearby heat sources such as direct sunlight warm air exhausts or heaters Operating humidity Maximum relative humidity of 90 noncondensing Ventilation Minimum 2 inches 5 08 cm on all sides for cooling Adequate airflow in room or wiring closet Operating conditions At least 6 feet 1 83 m to nearest source of electromagnetic noise such as photocopy machine or arc welder Service access Minimum 12 inches 19 68 cm front and back for service access and maintenance Front and back clearance for cables and wiring hardware such as punchdown blocks Power Adequate power source within 6 feet 1 83 m Tabletop requirements Flat area approximately 13 inches 33 0 cm by 8 inches 20 3 cm Rack requirements Standard 19 inch 48 26 cm EIA equipment rack with supplied mounting bracket hardware 1 0 EIA rack mount spaces needed for each NETGEAR hub Wiring hardware Wiring hardware such as punchdown blocks or patch panels should be complete before installing the hub Model EN516 EN524 Ethernet Hub Installation Guide Install the Hub To install your hub on a flat surface you do not need any special tools Install the rubber footpads that are included in the package Be sure the hub
9. 0BASE T AUI Rx LED network ports Partition LED for AUI Normal Partition LED for BNC Uplink push Collision LED button Front Panel of the Model EN524 hub 8669FA Vista 10BASE T Network Ports with Built in LEDs The front panel of the Model EN516 hub has 16 RJ 45 10BASE T ports and the Model EN524 hub has 24 RJ 45 10BASE T ports Two LEDs the Link Rx LED and the Partition LED are built into each 10BASE T port on both models Link Rx Partition LED LED 8670EA Model EN516 EN524 Ethernet Hub Installation Guide LEDs The table below describes the activity of the LEDs Color Activity Description Power Green On Power is supplied to the hub Collision Amber Blinking Data collision is occurring on the network Note that occasional collisions are normal BNC Rx Green Blinking There is incoming data on the BNC port Partition Amber On The BNC port is partitioned because of excessive for BNC collisions or the BNC port is not connected AUI Rx Green Blinking There is incoming data on the AUI port Partition Amber On The AUI port is partitioned because of excessive for AUI collisions or because the signal quality error SQE test function is not disabled on the transceiver Link Rx Green On The link between this port and the connected device is located on the top left good corner of each vista 10BASE T port Blinking There is in
10. cable cable pairs that are not correctly wired or loose connectors Make sure that there is power to both the hub and the Ethernet transceiver on the connected device Make sure the port has not been partitioned Amber Partition LED on the 10BASE T port BNC port or AUI port turns on The connected port is partitioned because of excessive collisions The 10BASE T port BNC port or AUI port is partitioned after 32 consecutive collisions are detected When the first good packet without a collision is received the port is reconnected and the amber Partition LED turns off Check and correct causes listed in this table for excessive collisions Make sure that e The correct cable is used and the cable is not faulty e There are no faulty connectors e The network card in your PC is set to half duplex If the amber Partition LED on the BNC port turns on also make sure that Each segment is terminated with a BNC 50 Q terminator at both ends Note that if the BNC port is not in use and the amber Partition LED turns on which could happen no action is required If the amber Partition LED on the AUI port turns on also make sure that e The coaxial transceiver is functioning properly the coaxial segment is terminated properly and the segment is not disconnected along the cable length e The signal quality error SQE test on the transceiver is disabled Refer to your transceiver documentation for instructio
11. coming data on the port Partition Amber On The port is partitioned because of excessive collisions located on the top right corner of each vista 10BASE T port Normal Uplink Push Button The Normal Uplink push button allows you to select Normal MDI X for direct PC connection The push button also allows you to select Uplink MDJ wiring for connection to a hub or a switch for port 16 on the Model EN516 hub and for port 24 on the Model EN524 hub This uplink configuration eliminates the need to use a crossover cable Ports 1 through 15 on the Model EN516 hub and ports 1 through 23 on the Model EN524 hub are permanently configured for normal wiring for connection to a PC Rear Panel The rear panel of each hub has two ports the AUI port and the BNC port You can use the AUI port with the appropriate transceiver to connect the hub to a backbone network using thin coaxial cable thick coaxial cable fiber optic cable or 10BASE T wiring You can use the BNC port to connect to a backbone network or other PCs using thin coaxial cable The rear panel also includes an AC power receptacle The hub accepts between 100 and 240 V AC 50 60 Hz AUI port BNC port Power receptacle 100 240 VAC 50 60 Hz 0 24 8143FA Model EN516 EN524 Ethernet Hub Installation Guide Installation Procedures E Prepare the Site Before you begin installing your hub prepare the installation site Make sure your operating environment
12. e and the information that follows the table to troubleshoot your Model EN516 or Model EN524 hub Symptom Amber Collision LED blinks Cause Data collision is normal on Ethernet networks Solution No action is required Amber Collision LED blinks excessively There is data collision on the network because the network is extremely busy or defective devices are connected on the network that cannot detect network traffic or collision Make sure connected devices are operating in half duplex mode The hub is not compatible with devices that operate in full duplex mode If you suspect that there might be a defective device on the network disconnect devices one at a time to isolate the defective unit on the network If the network is extremely busy you may have to segment the network with an Ethernet switch such as a NETGEAR Ethernet switch or to upgrade your network to Fast Ethernet operation Wrong or miswired cables are used Make sure the correct UTP cables are used See the table in the installation section of this guide for cable use and Normal Uplink push button information Note that home telephone cables can cause a collision condition and cannot be used in place of UTP cables Green Link Rx LED on the 10BASE T port is off when a cable is attached or not blinking when there is data transmission The port is not detecting a successful link or data transmission Check for a bad
13. evel 2 Safety Agency Approvals CE mark commercial UL listed UL 1950 CSA certified CSA 22 2 950 TUV licensed EN 60 950 Model EN516 EN524 Ethernet Hub Installation Guide 1998 by NETGEAR Inc All rights reserved Trademarks Bay Networks is a registered trademark of Bay Networks Inc NETGEAR is a trademark of Bay Networks 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 Model EN516 and Model EN524 Ethernet hubs 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
14. nductor GAY Ground shield The BNC port on the hub with the BNC T connector and the 50 Q terminator is used for connecting to a thin coaxial segment 8149EA BNC T connector 8150FA Model EN516 EN524 Ethernet Hub Installation Guide T Technical Specifications General Specifications Network Protocol and Standards Compatibility IEEE 802 3i 10BASE T 10BASE 2 10BASE 5 Ethernet Data Rate 10 Mbps Manchester encoded Interface 16 10BASE T ports RJ 45 on the Model EN516 hub 24 10BASE T ports RJ 45 on the Model EN524 hub On both the Model EN516 and Model EN524 hubs 1 BNC 10BASE 2 port 1 AUI port 15 pin D type Power 100 240 V 50 60 Hz auto selection 0 15 A maximum Physical Specifications Width Height Depth Weight Model EN516 hub Model EN524 hub 13 0 inches 330 mm 1 7 inches 43 mm 8 0 inches 203 mm 4 8 Ib 2 2 kg 5 0 Ib 2 3 kg Environmental Specifications Operating temperature Operating humidity 0 to 40 C 32 to 104 F 90 maximum relative humidity noncondensing Electromagnetic Emissions CE mark commercial FCC Part 15 Class A EN 55 022 CISPR 22 Class A VCCI Class 1 ITE Electromagnetic Susceptibility Electrostatic discharge ESD Radiated electromagnetic field Electrical fast transient burst Electrical surge CE mark commercial IEC 801 2 Level 2 3 4 IEC 801 3 Level 2 IEC 801 4 Level 2 IEC 801 5 L
15. ns Model EN516 EN524 Ethernet Hub Installation Guide i Cable Connector Information Network Interface Cards Make sure the network interface cards installed in the workstations are in working condition and the software driver has been installed Hub Integrity If required verify the integrity of the hub by resetting it Turn power to the switch off and then back on If the problem continues and you have completed all the preceding diagnoses contact NETGEAR Customer Support For the phone number of the representative in your area see Customer Support Twisted Pair Cables 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 in ternally as part of the circuitry in the device Most ports on switches and repeaters have media dependent inter faces with crossover ports These ports are referred to as MDI X or Normal ports Computer and workstation adapter cards are usually media dependent interface ports referred to as MDI or Uplink ports The figures illustrate the use of straight through and crossover twisted pair cables Straight through Uplink or Normal or MDI port twisted pair cable MDI X port Normal or Crossover Normal or MDI X port twisted pair cable MDI X port 8146EB Model EN516 EN524 Ethernet Hub Installation Guide RJ 45 Connector The RJ 45 connector shown in the illustration with
16. ns or is jabbering Automatic polarity detection for recognizing and correcting incorrect polarity on the receive pair Compact design enabling easy tabletop or rack mounting installation Limited five year warranty on the unit and one year warranty on the power supply Model EN516 EN524 Ethernet Hub Installation Guide E Package Contents Model EN516 hub Re Model EN524 hub NETGEAR NETGEAR INI ee WE ana BNC T connector Rubber a footpads lt gt BNC 50 Q Rack mount kit terminator Power o cord o a 2 Installation guide __ _ Warranty amp Owner Registration Card 8668FA Verify that your package contains the following e Model EN516 hub or Model EN524 hub e Rack mount kit that includes eight small screws four large screws four spacers and two rack mount brackets e Four rubber footpads e BNC T connector and BNC 50 Q terminator e Installation guide e Warranty amp Owner Registration Card Power cord Model EN516 EN524 Ethernet Hub Installation Guide Product Illustration The instructions provided in this guide are for installing and using the Model EN516 hub and the Model EN524 hub Front Panel of the Model EN516 hub vista 1OBASE T network ports Power LED BNC Rx LED AUI Rx LED Bren ER ay Notaris Partition LED for AUI Normal Partition LED for BNC Uplink push Collision LED button Power LED BNC Rx LED vista 1
17. on 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 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 Model EN516 and Model EN524 Ethernet hubs 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 R glement sur le brouillage radio lectrique du minist re des Communications Cet appareil num rique Model EN516 et Model EN524 Ethernet hubs 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 Model EN516 EN524 Ethernet Hub Installation Guide NETGEAR NETGEAR Inc A Bay Networks Company 4401 Great America Parkway Santa Clara CA 95054 USA Phone 888 NETGEAR E Customer Support Phone Australia 1800 142 046 France 0800 90 2078 Germany 0130 817305 Japan 0120 66 5402 Korea 00308 11 0319 New Zealand 0800 444 626 Sweden 020 790086 United Kingdom 44 171 571 5120 U S Canada 800 211 2069 Internet World Wide Web
18. y a gt 185 m in length Model EN516 EN524 Ethernet Hub Installation Guide Connect to a Network Using the AUI Port The AUI port on the rear panel of the hub is normally used for connecting a thick coaxial segment With the right type of transceiver you can use the AUI port to connect to most types of network media including 10BASE T twisted pair cable or thin coaxial thick coaxial and 10BASE FL fiber optic cables Note All transceivers connected to the AUI port must have the signal quality error SQE test function disabled Refer to your transceiver documentation for information about disabling the SQE test function Cable terminator device AUI cable coaxial cable 10BASE 5 transceiver 8075FA Note Ethernet specifications limit segments to 100 stations and 1 640 feet 500 m in length and they specify that the AUI cable between the hub and the transceiver is limited to 164 feet 50 m 5 Verify the Installation To complete the installation connect the power cord first to the power receptacle on the hub rear panel and then to the power outlet on the wall When power has been applied to the hub The green Power LED on the front panel is on e The green Link Rx LED on each connected port is on If there are any problems refer to Troubleshooting Information Model EN516 EN524 Ethernet Hub Installation Guide Troubleshooting Information Refer to this tabl
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