Netgear SW108 User's Manual
Contents
1. Installation Guide for the Model SW108 Ethernet Switch NETGEAR NETGEAR Inc A Bay Networks Company 48015 Warm Springs Blvd Fremont CA 94539 M SW108NA 0 June 1997 1997 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 Other brand and product names are registered trademarks or trademarks of their respective holders 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 Federal Communications Commission FCC Declaration of Conformity Statement 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 w2. Link LED 2 FDX LED Figure 2 2 The vista RJ 45 connector with built in LEDs Normal Uplink Push Button As illustrated in Figure 2 1 port 8 on the switch is equipped with a Normal Uplink push button that allows you to select normal MDI X wiring or uplink MDI wiring The port is configured for normal wiring when the push button is in the out position for connection to a PC When the push button is pressed in the port is configured for uplink wiring for connection to another switch or a hub using simple straight through wiring 2 2 Physical Description LEDs Installation Guide for the Model SW108 Ethernet Switch You use LEDs on the Model SW108 switch to monitor and diagnose the devices LEDs on the front panel of the switch and two LEDs on each port allow you to identify the following information e Status of the switch power supply e Data transmission or receive activity e Collision occurrence e Full or half duplex transmission Table 2 1 describes each LED on the front panel of the switch See Figure 2 1 for the locations 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 Rx Tx Collision Green On or Packet transmission or reception is occurring on the port blinking Off There is no packet transmission or reception occurring on the port Yellow Blinking Data collision is occurring on the port The blinking
3. 32 at 4 MHz 47 at 16 MHz 44 at 10 MHz 26 at 10 MHz 41 at 31 MHz 39 at 16 MHz 23 at 16 MHz 38 at 100 MHz 32 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 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 C 2 Cabling Guidelines Installation Guide for the Model SW108 Ethernet Switch Figure C 1 illustrates straight through twisted pair cable connections 736EA 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 Connector pins Figure C 1 Straight through twisted pair cable Figure C 2 illustrates crossover twisted pair cable connections 737EA Key B Normal or MDI X port As on a hub or switch 1 2 3 6 Connector pins Figure C 2 Crossover twisted pair cable Cabling Guidelines C 3 Numbers 10 Mbps ports 2 1 2 4 A applications desktop switching 3 2 segment switching 3 3 C cable crossover twisted pair 4 2 C 3 specifications C 1 straight through twisted pair 4 2 5 2 C 3 troubleshooting 5 2 Collision LED 2 1 2 3 5 1 crossover tw
4. Model SW108 switch e Configure the port for normal wiring if the port is to be connected to an uplink wired device such as a network station or a PC e Configure the port for uplink wiring if the port is to be connected to a normal wired device such as a hub or another switch The remaining normal ports on the Model SW108 switch cannot be configured for uplink wiring If you are using one of these ports to connect to another normal port you must use a crossover twisted pair cable to connect the two ports Refer to Appendix C Cabling Guidelines for information about crossover twisted pair cable and straight through twisted pair cable 4 2 Installation Installation Guide for the Model SW108 Ethernet Switch 3 Set the FDX or HDX toggle switches on the rear panel for the selected duplex mode A hub and repeater use a common collision domain for all communications and cannot support full duplex mode When connecting any of the 10 Mbps ports on the switch to a hub set the port to HDX When connecting to a PC a server or another switch the duplex setting for the port must be the same as the duplex setting on the PC server or other switch Note Whenever a port changes between FDX and HDX mode the Model SW108 switch resets and traffic in all ports temporarily stops When the switch resets the list of learned addresses is not affected 4 Connect one end of the DC power adapter cable to the power outlet on the rear
5. 45 Connector The RJ 45 plug accepts 4 pair unshielded twisted pair UTP or shielded twisted pair STP 100 Q cable and connects into the vista RJ 45 connector The vista RJ 45 connector also referred to as a 10 Mbps port is used to connect stations hubs and switches through UTP cable and supports 10 Mbps data transmission The RJ 45 plug and vista RJ 45 connector are both illustrated in Figure B 1 Ta 8 1 12345678 LE 711EA Key 1 to 8 Pin numbers Figure B 1 RJ 45 plug and vista RJ 45 connector with built in LEDs Connector Pin Assignments B 1 Installation Guide for the Model SW108 Ethernet Switch Table B 1 lists the pin assignments for the RJ 45 plug and the vista RJ 45 connector Table B 1 RJ 45 plug and vista RJ 45 connector pin assignments Pin Normal assignment Uplink assignment 1 Input Receive Data Output Transmit Data 2 Input Receive Data Output Transmit Data 3 Output Transmit Data Input Receive Data 6 Output Transmit Data Input Receive Data 4 5 7 8 Internal termination not used for data transmission Applicable to port on the Model SW108 switch when the Normal Uplink push button is in the Uplink position B 2 Connector Pin Assignments Appendix C Cabling Guidelines This appendix provides information on the cable specifications and guidelines for Category 5 UTP cabling used with the NETGEAR Model SW108 Ethernet
6. Mbps connection is possible on the port where the server or PC is connected 3 2 Applications Installation Guide for the Model SW108 Ethernet Switch Segment Switching The Model SW108 switch can segment a network into multiple connected pieces increasing overall bandwidth and throughput Figure 3 2 illustrates the Model SW108 Ethernet switch segmenting networks that are built with the NETGEAR Model EN104 and Model EN108 Ethernet hubs 7629EA Key 1 Server with 10 Mbps connection 2 Model SW108 Ethernet switch Normal Uplink push button set to Normal position 3 10 Mbps connection 4 Model EN104 Ethernet hub Normal Uplink push button set to Uplink position 5 Model EN108 Ethernet hub Normal Uplink push button set to Uplink position 6 PCs with 10 Mbps connection Figure 3 2 Model SW108 switch used as a segment switch Applications 3 3 Chapter 4 Installation This chapter provides information about installing the Model SW108 Ethernet switch and information about verifying installation Preparing the Site Before you begin installing the switch prepare the installation site Make sure the operating environment meets the physical requirements of the equipment as described in Appendix A Technical Specifications Package Contents This package should contain the following items e Model SW108 Ethernet
7. action corresponds to the amount of collisions When a collision occurs the connected device pauses and transmits again after waiting a specified time A moderate amount of collision is normal Link Green On A valid link is established on the port Off A link is not established on the port FDX Green On The port is operating in full duplex mode Off The port is operating in half duplex mode Physical Description Installation Guide for the Model SW108 Ethernet Switch Rear Panel As illustrated in Figure 2 3 the rear panel has full duplex FDX and half duplex HDX toggle switches a ground clip and a standard AC power receptacle O Hox Fox 7 s 1 HDX o o IT 887EA Key 1 Ground clip 2 FDX and HDX toggle switches to set the duplex mode of each 10 Mbps port 3 AC power outlet Figure 2 3 Rear panel of the Model SW108 switch FDX and HDX Duplex Toggle Switches Full duplex mode is supported for all 10 Mbps ports and allows a port to transmit and receive data at the same time Full duplex operation applies only to point to point access where the remote device also supports full duplex In half duplex mode the port can either transmit or receive data at any time but not transmit or receive data concurrently As illustrated in Figure 2 3 one full duplex FDX and half duplex HDX toggle switch is assigned to each 10 Mbps port on the switch to set the communication m
8. ano nn nac C 1 Gable Specifications is C 1 Twisted Pair Gables 3 actsuiit aginst vane pete td C 2 Index vi Contents Figures Figure 2 1 Front panel of the Model SW108 switch ennsesesnseesssnnnnnnnnnnnnnnnnnnn 2 1 Figure 2 2 The vista RJ 45 connector with built in LEDS 0 0 0 2 eeeeeeeeeeteeeeeeeeeteees 2 2 Figure 2 3 Rear panel of the Model SW108 switch oooooonccinccccnnnccnnncccccocccnnanancnancnana 2 4 Figure 3 1 Using the Model SW108 switch for desktop switching 3 2 Figure 3 2 Model SW108 switch used as a segment switch u eennnn 3 3 Figure B 1 RuJ 45 plug and vista RJ 45 connector with built in LEDs B 1 Figure C 1 Straight through twisted pair Cable usnneensenennnnnennnnnnnnnnnnnnnnnnnn C 3 Figure C 2 Crossover twisted pair cable suunnnennnnnennnnnnnnnnnnnnnnnnnnnnnnnnnnnnn C 3 Figures vii Tables Table 2 1 LED descriptions rr een ein aah oe tee AS 2 3 Table 5 1 Troubleshooting vit oia n 5 1 Table B 1 RJ 45 plug and vista RJ 45 connector pin assignment neen B 2 Table C 1 Electrical requirements of Category 3 4 and 5 cables nnne C 2 viii Tables Chapter 1 Introduction Congratulations on your purchase of the NETGEAR Model SW108 8 port Ethernet Switch The Model SW108 switch segments Ethernet networks to relieve bandwidth congestion instantly without havi
9. cnn cnn rca nc 1 2 Model SW108 Switch Overview nesssssnssnenensnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nn 1 2 Features un a ERTL 1 3 Chapter 2 Physical Description Front Panel re li RR 2 1 Ethernet Forts Ai ati cela alan Rhein 2 2 Normal Uplink Push Button wissers a aTr EEE T nn nr rra nn ranma 2 2 LEDS A ee adie 2 3 Rear Panel a dido 2 4 FDX and HDX Duplex Toggle Switches u unuunnssennssnnennsnnnnnnnnnnnnnnnnnnnnnnnnnnnnn nen 2 4 Chapter 3 Applications Desktop Switching amana Read 3 2 S gment Switching sr ihain a it 3 3 Chapter 4 Installation Preparing the Mecca Ri 4 1 Package Coments bee ta ed dd 4 1 Installing the Switch on a Desktop ooooccccnocccnnnccccconccnnnoncnnonc nana n cn nano conan nn nnnn cra rra 4 2 Connecting Devices to the Switch uuusssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn mann 4 2 verifying lnstallation 2000 id RE SEY 4 3 Contents V Chapter 5 Troubleshooting Troubleshooting the Switch and the Network uuesssseensnnnnnsnnnnnnnnnnnnnnnnnnnnennn nn 5 1 Appendix A Technical Specifications General Specifications 0 2 ceecececcececeeeeeeeeeeeeeeeeeeeceaeeeeeaeeecaeeeeeaaeeeeaeeeseaaeeseeeeeesaeeesenees A 1 Appendix B Connector Pin Assignments RJ 45 Plug and vista RJ 45 Connector coococococcccccconccnnnonccnnnconononcncnncn cnn nn nano ca rannnnnana cnn B 1 Appendix C Cabling Guidelines Ethernet Technology oooccccnccconnononnnnccononcnnn n
10. dia imaging video or high performance client server functions among users who are spread out over the network Introduction 1 1 Installation Guide for the Model SW108 Ethernet Switch This bandwidth improvement is accomplished very easily with no change to the desktop the network interface cards or software and network wiring As a result the performance upgrade and the applications it enables are obtained very quickly and at a low cost Types of Ethernet Switches Ethernet switches can be classified in different ways as desktop switches or segment switches A desktop switch is designed to support one or a few PCs per port It is generally used when users need the full 10 Mbps network throughput to support the applications Often these switches support only a single MAC media access control address per port and are relatively inexpensive compared to a segment switch A segment switch in contrast is designed to support an entire workgroup on each port with each port having significant memory buffering and supporting thousands of MAC addresses Switches can also be classified by speed As the name suggests 10 Mbps switches support only 10 Mbps connections Similarly 100 Mbps switches support only 100 Mbps connections Usually 10 100 Mbps switches have primarily 10 Mbps ports with one or few 100 Mbps ports Autosensing 10 100 Mbps switches support 10 Mbps or 100 Mbps connections on each port and are the most versatile and adap
11. e See UTP cable uplink ports 4 2 B 2 C 2 wiring 4 2 B 2 C 2 UTP cable troubleshooting 5 2 Index
12. essing 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 Z2OEER SHARE MIRRA BO CHASANANSHRRE T LEH RECORRE BM LARREA FEB EHRE ER ZA VCCI AICA LTED TO KT EER TOREHBRETEALTES FIt TL CRRS MEL SR DLEMHN ETS Customer Support For assistance with installing and configuring your NETGEAR system or with post installation questions or problems contact your point of purchase representative To contact customer support or to purchase additional copies of this document and publications for other NETGEAR products you can contact NETGEAR at the following numbers Phone U S Canada 1 800 211 2069 Japan 0031 1 26133 Europe 44 171 571 5120 Australia 1 800 14 20 46 e Fax U S Canada 510 498 2609 World Wide Web NETGEAR maintains a World Wide Web Home Page that you can access at the universal resource locator URL http NETGEAR baynetworks com A direct connection to the Internet and a Web browser such as Internet Explorer or Netscape are required Contents Chapter 1 Introduction Benefits of Using Switching Technology oooccccinccnnnncccnnnccininonnnanaconono nana non cnn nn nn nn 1 1 Types of Ethernet Switches oooococcconnncccnocccnnnoccnnonocononn nn nano cc cnn
13. hich 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 NETGEAR Model SW108 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 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 Bestatigung des Herstellers Importeurs Es wird hiermit best tigt da das NETGEAR Model SW108 switch gem der im BMPT AmtsblVfg 243 1991 und Vfg 46 1992 aufgef hrten Bestimmungen entst rt ist Das vorschriftsm ige Betreiben einiger Ger te z B Testsender kann jedoch gewissen Beschr nkungen unterliegen Lesen Sie dazu bitte die Anmerkungen in der Betriebsanleitung Das Bundesamt f r Zulassungen in der Telekommunikation wurde davon unterrichtet da dieses Ger t auf den Markt gebracht wurde und es ist berechtigt die Serie auf die Erf llung der Vorschriften hin zu berpr fen 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 Proc
14. isted pair cable 4 2 C 3 customer support iii D data collisions 5 1 desktop switching 1 2 3 2 devices connecting to the switch 4 2 F FDX duplex toggle switches 2 4 4 3 5 1 FDX LED 2 3 5 1 features 1 3 front panel 2 1 full duplex mode 2 3 2 4 4 3 5 1 Index H half duplex mode 2 3 2 4 4 3 5 1 HDX duplex toggle switches 2 4 4 3 installation on a desktop 4 2 verifying 4 3 L LEDs and troubleshooting 5 1 description 2 3 location 2 1 Link LED 2 3 4 3 5 2 M MDI wiring 2 2 MDI X wiring 2 2 N normal ports 4 2 5 2 B 2 C 2 wiring 4 2 5 2 B 2 C 2 Normal Uplink push button 1 3 2 1 5 2 O overview of switch 1 2 Index Installation Guide for the Model SW108 Ethernet Switch P V package contents 4 1 vista RJ 45 connector ports 10 Mbps 2 1 2 4 illustration 2 2 pin assignments B 1 Power LED 221 2374 3 31 troubleshooting 5 2 R w ade ae World Wide Web iii RJ 45 connector See vista RJ 45 connector RJ 45 plug using to connect to 10 Mbps ports 2 2 using with UTP and STP cable B 1 Rx Tx LED 2 3 4 3 5 1 S segment switching 1 2 3 3 site preparation 4 1 straight through twisted pair cable 4 2 5 2 switches duplex toggle 2 4 4 3 switching technology 1 2 3 2 switching benefits of using 1 1 T technical specifications A 1 toggle switches duplex 2 4 4 3 troubleshooting 5 1 U unshielded twisted pair cabl
15. k adapter card installed in the PC is in working condition Make sure that there is power to both the switch and the connected PC Check the Normal Uplink push button on the front panel If you are using a straight through cable connected to a PC or other MDI wired device make sure the Normal Uplink push button is set in the Normal position If you are using a straight through cable connected to a router or another switch make sure the Normal Uplink push button is set in the Uplink position Try the alternate position of the Normal Uplink push button to turn the Link LED on Refer to Chapter C Cabling Guidelines for cable information Troubleshooting Appendix A Technical Specifications This appendix provides technical specifications for the NETGEAR Model SW108 switch General Specifications Network Protocol and Standard ISO IEC 802 3 ANSVIEEE 802 31 10BASE T Ethernet Data Rate 10 Mbps Manchester encoded Interface RJ 45 connector for LOBASE T Ethernet interface Electrical Specifications Power Consumption 12 7 W Input Voltage 12 V dc Physical Specifications Dimensions W 9 3 by H 1 1 by D 4 1 in W 23 5 by H 2 7 by D 10 3 cm Weight 1 61 1b 13 kg Technical Specifications A 1 Installation Guide for the Model SW108 Ethernet Switch Environmental Specifications Operating temperature Storage temperature Operating humidity Storage humidity Operating altitude Storage a
16. ltitude Electromagnetic Emissions Meets requirements of CE mark commercial FCC Part 15 Class A EN 55 022 CISPR 22 Class A VCCI Class 1 ITE Electromagnetic Susceptibility CE mark commercial Electrostatic discharge ESD Radiated electromagnetic field Electrical fast transient burst Electrical surge 0 to 40 C 32 to 104 F 25 to 70 C 13 to 158 F 80 maximum relative humidity noncondensing 95 maximum relative humidity noncondensing 10 000 ft 3 000 m maximum 10 000 ft 3 000 m maximum IEC 801 2 Level 2 3 4 IEC 801 3 Level 2 IEC 801 4 Level 2 IEC 801 5 Level 2 A 2 Technical Specifications Installation Guide for the Model SW108 Ethernet Switch Safety Agency Approvals for Power Adapter CE mark commercial UL listed UL 1950 CSA certified CSA 22 2 950 TUV licensed EN 60 950 T Mark Performance Specifications Frame filter rate 14 800 frames second maximum Frame forward rate 14 800 frames second maximum Network latency Less than 75 microseconds for 64 byte frames in store and forward mode Address database size 8 000 media access control MAC addresses per port Addressing 48 bit MAC address Queque buffer 1 MB of buffer space for all 8 ports Technical Specifications A 3 Appendix B Connector Pin Assignments This appendix provides information about the RJ 45 connector used for the NETGEAR Model SW108 Ethernet switch RJ 45 Plug and vista RJ
17. ng to replace network wiring interface cards or software This guide describes how to install and use the switch It includes physical configuration guidelines for connecting multiple 10 megabit per second Mbps hubs and for connecting 10 Mbps Ethernet stations PCs and servers Benefits of Using Switching Technology Most of installed networks today are based on shared network technology With this technology a number of users or groups of users share 10 Mbps 100 Mbps or other amounts of available network bandwidth network capacity For example with a total of 10 users the average bandwidth available to each user on a 10 Mbps network is calculated as 10 10 Mbps or 1 Mbps of bandwidth per user Ethernet switches significantly increase network throughput by segmenting network traffic They check traffic coming in to each port to learn which network device is located on which segment Based on this information switches forward cross segment traffic only to the appropriate segment The traffic will not show up in the other segments since it is filtered out In this way network capacity is fully reserved for traffic destined for that segment only and other segments are not saturated with unnecessary traffic Ethernet switches provide private dedicated 10 Mbps capacity to each connected PC server or hub workgroup segment which is significantly higher than in a shared environment The higher bandwidth enables applications such as multime
18. ode to either full duplex or half duplex mode 2 4 Physical Description Chapter 3 Applications This chapter presents an overview of the levels of service provided by incorporating the technology of the NETGEAR Model SW108 Ethernet switch into your network The Model SW108 Ethernet switch is designed to provide flexibility in configuring your network connections Each switch can be used as a standalone device or can be used with 10 Mbps hubs or other interconnection devices in various configurations The configuration examples in this chapter illustrate the integration of the switches in network environments of all sizes and types These examples include a network of a few workstations connected to a printer or in a segmented network with multiple users or workgroups and other networking devices Applications 3 1 Installation Guide for the Model SW108 Ethernet Switch Desktop Switching Figure 3 1 illustrates the Model SW108 switch used as a desktop switch to build a small network that enables users to have 10 Mbps access to a file server mA ISS 2 7630EA Key 1 Server with 10 Mbps connection 2 Model SW108 Ethernet switch Normal Uplink push button set to Normal position 3 PCs with 10 Mbps connection Figure 3 1 Using the Model SW108 switch for desktop switching Note If a full duplex adapter card is installed in the server or PC a 20
19. ourself with the ports LEDs and Normal Uplink push button switches on the front panel as illustrated in Figure 2 1 O NETGEAR 0oosase retuerner switch SW108 10 Mbps Suitehing 7 Link FDX 12 de A en f t i TT Normal Uplink 5 bin 27 38 Exe oO ooo Power Green Rx Tx Yellow Collision 5 i z Key 1 Power LED 2 Rx Tx and Collision LEDs for ports 1 through 8 3 10 Mbps Ethernet ports1 through 8 with Link and FDX LEDs on each port 4 Normal Uplink push button to configure port 8 Figure 2 1 Front panel of the Model SW108 switch 886EA Physical Description 2 1 Installation Guide for the Model SW108 Ethernet Switch Ethernet Ports The Model SW108 switch is equipped with eight 10 Mbps Ethernet ports that support one cable connection unshielded twisted pair UTP cable An eight pin RJ 45 plug is used for connection to these ports Each port uses vista RJ 45 connectors that have built in LEDs as illustrated in Figure 2 2 The LEDs as described in Table 2 1 indicate that the connection to the port is valid and that the port is operating in full duplex mode For further information about the vista RJ 45 connector and the RJ 45 plug refer to Chapter B Connector Pin Assignments O 735EA Key 1
20. panel of the switch and the other end of the power adapter cable to the wall outlet Verifying Installation When the installation is complete and power has been applied to the switch the following conditions should exist e The Power LED on the front panel is on The Link LED on each connected port is on e The Rx Tx Collision LED on the connected port blinks green when data is being received by the port and blinks yellow when data collision is occurring on the port If you encounter any problems refer to Chapter 5 Troubleshooting Installation 4 3 Chapter 5 Troubleshooting This chapter provides information about troubleshooting the NETGEAR Model SW108 Ethernet switch Troubleshooting the Switch and the Network To troubleshoot the switch and the network refer to Table 5 1 Table 5 1 Troubleshooting Symptom Activity Check No power at switch Power LED off Rx Tx Collision LED Blinking yellow blinking When configured to FDX LED off operate in full duplex mode the port is operating in half duplex mode Check the power cord connections and make sure the ends are properly plugged into the switch and the wall outlet Data collisions are normal on Ethernet networks and occur when two or more computers transmit data on the network simultaneously Computers that caused the collision retry transmission at different intervals until the transmission succeeds Excessive collisions can result when m
21. re to configure saving time and minimizing the potential for configuration errors Eight vista RJ 45 connector ports Each port has built in LEDs to monitor individual port status LEDs provide network traffic status and information about data transmission speed Normal Uplink push button to simplify network extension The switch can be connected to a hub using a simple straight through cable Compact sturdy metal case design which enables easy desktop wall mount or under desk installation Wire speed filtering and forwarding to provide a traffic cop function by directing traffic to the appropriate port or network segment without slowing down the traffic Low latency store and forward transmission mode with leading edge to leading edge of less than 75 us Automatic address learning function to build the packet forwarding information table The table contains up to 8 000 MAC addresses that is the switch can support networks with as many as 8 000 devices One megabyte MB buffer provided for the 10 Mbps ports IEEE 802 3 10BASE T standard compliance Introduction 1 3 Chapter 2 Physical Description This chapter explains the hardware features of the NETGEAR Model SW108 Ethernet switch It is divided into sections explaining the front and rear panels of the switch Use the key at the bottom of each illustration to identify the panel components Front Panel For easier management and control of the switch familiarize y
22. switch DC power adapter e Warranty and Owner Registration Card e This installation guide Call your reseller or customer support in your area if there are any wrong missing or damaged parts Refer to page 111 for the location of customer support in your area Keep the carton including the original packing materials Use them to repack the switch 1f you need to return it for repair To qualify for product updates and product warranty registrations fill in the Warranty and Owner Registration Card within 30 days of purchase and return it to NETGEAR Inc Installation 4 1 Installation Guide for the Model SW108 Ethernet Switch Installing the Switch on a Desktop Choose a location near the devices to be connected and close to an electrical outlet Set the switch on a desktop or tabletop allowing at least two inches 5 cm of space on all sides to prevent restriction of airflow Connecting Devices to the Switch Before connecting the switch refer to Chapter 3 Applications for information to help you determine the appropriate configuration for your networking needs To connect the switch follow these steps 1 Connect the devices to the ports on the switch using Category 5 UTP cable and an RJ 45 plug 2 Set the Normal Uplink push button The Normal Uplink push button eliminates the need to use a crossover twisted pair cable for daisy chaining or cascading Use the following guidelines to configure port 1 on the
23. switch Ethernet Technology When 10BASE T technology was originally introduced multiple repeaters were frequently used to build large networks To increase the number of connections repeaters were connected together because individual repeater port densities were often limited to 8 to 24 ports As structured wiring systems were implemented horizontal wiring from the wiring closet to the desktop was designed for a maximum distance of 100 meters Stackable repeaters eliminated the need for collision domains to extend over multiple repeater hubs Cable Specifications For 10 Mbps connections Category 3 4 or 5 cable can be used however NETGEAR highly recommends Category 5 cable Category 5 cable will prevent unnecessary expense or confusion if you upgrade to Fast Ethernet Cabling Guidelines C 1 Installation Guide for the Model SW108 Ethernet Switch Table C 1 lists the electrical requirements of the Category 3 4 and 5 cables Table C 1 Electrical requirements of Category 3 4 and 5 cables Specification Category 3 Category 4 Category 5 Number of pairs Four Four Two or Four Impedance 100 2 15 100 Q 15 100 Q 15 Mutual capacitance at 1 KHz lt 6 6 nF per 100 m lt 5 6 nF per 100 m lt 5 6 nF per 100 m Maximum attenuation dB per 100 m at 20 C at 4 MHz 5 6 at 4 MHz 4 3 at 16 MHz 8 2 at 10 MHz 9 8 at 10 MHz 7 2 at 31 MHz 11 7 at 16 MHz 13 1 at 16 MHz 8 9 at 100 MHz 22 NEXT loss dB minimum at 4 MHz
24. table switch type Model SW108 Switch Overview The Model SW108 switch is a 10 Mbps switch that can be used as either a segment or a desktop switch Its design enables it to function as a segment switching yet its pricing makes the switch very affordable for use in desktop applications Up to 4 switching paths 8 paths in full duplex mode can be established at the same time with each path crossing two ports performing switching that sends packets to the appropriate port according to the destination address scanned from the packet header This technique reduces the latency of packet transmission to 75 microseconds us or less Compared to approximately 800 us for a bridge or 1800 us for a router the Model SW108 switch delivers a major improvement in the network performance Because the Model SW 108 switch is a device functioning on the MAC layer the switch is protocol independent and is compatible with IEEE802 3 IEEE802 3u TCP IP NetWare DECnet and XNS protocols 1 2 Introduction Installation Guide for the Model SW108 Ethernet Switch Features The Model SW 108 switch has the following key features Eight switched 10 Mbps Ethernet 10BASE T ports Full duplex or half duplex mode of operation Full duplex mode doubles throughput of point to point connections by letting individual ports transmit and receive concurrently when the connecting device also supports full duplex mode Easy plug and play installation with no softwa
25. ultiple switches are connected and when many computers are connected on the network Incorrect cabling connectors wiring techniques and mismatched duplex operating mode settings are other causes for excessive collisions The connected device may not be able to operate at half duplex or may not have the ability to signal the operating mode Verify that the connected device is operational Troubleshooting 5 1 Installation Guide for the Model SW108 Ethernet Switch Table 5 1 Troubleshooting continued Symptom Activity Check Port connection not functioning Problems with port 8 on the Model SW108 switch Link LED off or intermittent Link LED off After the cabling has been installed if the Link LED is not lit on an active port check the attached device and make sure that it is powered on and there is a proper UTP connection at that end Also make sure that the proper cable is installed and check for miswired cable pairs or loose connectors If the Link LED is on intermittently check the port termination at both the switch and device ends Check the crimp on the RJ 45 connectors Check that the length of the UTP cable from the switch to the device does not exceed 328 feet 100 meters Using cable test equipment check that the cable meets the specifications as required by the 10BASE T standard Refer to Chapter C Cabling Guidelines for information on cable specifications Make sure the networ
Download Pdf Manuals
Related Search