Kingston Technology KNE12TX/RS Switch User Manual
Contents
1. Input Voltage 100VAC 240VAC 50 60Hz Auto sensing internal power supply Output Voltage SVDC 8A Power Consumption Physical Dimension 1 70 x 17 32 x 10 Hx Lx D 43 2mm x 440mm x 254mm Weight 9 25 165 4 2 kg EMI Standards EMC Standards EN55022 IEC801 2 IEC801 3 IEC801 4 Low Volt Directive Safety Standards KNE24TX RS User s Guide Rev A01 Kingston Technology Company 20 Appendix C Specifications 100FX Modules Part Numbers with SC connectors KNE100FX RSC with ST connectors KNE100FX RST Kingston Technology Company KNE24TX RS User s Guide Rev A01 Appendix D Commonly Asked Questions 21 Appendix D Commonly Asked Questions Class D vs Class D 100BASE TX Fast Ethernet Repeaters There are currently two classes of Fast Ethernet repeaters defined as Class T and Class D Class D in a maximum length segment topology only one Class D repeater may exist between any two nodes within a single collision domain Class GD in a maximum length segment topology two Class D repeaters may exist between any two nodes within a single collision domain Will 100BASE TX run on Category 3 cable No Category 3 CAT 3 cabling even in short lengths generates too much near end crosstalk for 100BASE TX networks The IEEE 802 3u 100BASE TX Fast Ethernet standard requires Category 5 100 Q UTP or 150 Q STP which complies with ISO IEC 11801 1995 What is Category 5 Category 5 CAT2. 12 or 24 UTP ports for OOBASE TX connection 8 12 or 24 Link Activity and Partition Error Status LEDs for easy troubleshooting Optional I00BASE FX modules available SC or ST connectors Utilization LEDs display network traffic in five LED percentage levels Power LED and Collision LED for collision detection Automatic partition and reconnection Uplink Ports support both crossover and straight through cable wiring for cascading to another 100BASE TX Class repeater Conforms to IEEE 802 3u 100BASE TX standard and Repeater for 100Mb s baseband networks Internal auto sensing universal power supply operating at 100 240VAC 50 60Hz 19 inch Rack Mountable with mounting kit included Package Contents Your Fast EtheRx Stackable package should contain the following items Fast EtheRx Stackable 8 12 24 Port Fast Ethernet Hub KNESTX RS or KNE12TX RS or KNE24TX RS o 50 pin shielded stacking cable o AC power cord o Mounting kit includes 2 Angle brackets 8 Bracket mounting screws 4 10 32 Rack Mount screws 4 Rubber Feet o User s Guide If any of the items are missing or damaged please contact your Kingston dealer for a replacement Be sure the items you receive are genuine Kingston Technology products If the Kingston name and logo are not on the front panel of your unit it s not a genuine Kingston product Kingston Technology Company KNE24TX RS User s Guide Rev A01 Design Features 5 Design Featur
3. TX Fast Ethernet the new error handling feature prevents sub standard links from generating streams of false carrier and interfering with other links KNE24TX RS User s Guide Rev A01 Kingston Technology Company 6 Hardware Installation Automatic Partitioning Reconnection If any of the ports on the Fast EtheRx Hub experience excessive numbers of consecutive collisions duration collisions or faulty conditions that particular port can be partitioned Once partitioned the hub will continue to monitor that port If the error conditions have been corrected or a good data packet is transmitted without incurring a collision the hub will automatically reconnect that port to the network Hardware Installation Before you begin installing network cables please take a few moments to familiarize yourself with the front panel of your Fast EtheRx Hub The functions on the front and rear panels are illustrated below Front Panel I00BASE TX UTP Ports Fiber Module Detection LED Utilization LEDs Power LED Link Activity Partition LEDs Collision LED Uplink Ports Fig 1 Front Panel 24 Port Model Power LED The green LED indicates the power status The LED will light when the AC power cord is connected from a power source to the hub and the power switch is turned on Collision LED The amber LED displays the collision status If a collision is detected on the network the amber LED will fla
4. gt 8 Notes on MDI and MDI X Ports MDI Media Dependent Interface is the standard that defines the mechanical and electrical configuration of a UTP port For any two devices to communicate with each other on the network the transmitter of one device must be connected to the receiver of the other device This can be achieved by using a crossover cable or by using the MDI X port which implements the crossover internally Ports 1 thru 7 KNE8TX RS ports 1 thru 11 KNEI2TX RS and ports 1 thru 23 KNE24TX RS like all normal hub ports are configured as MDI X The last UTP port has two 2 RJ 45 connectors in order to support both MDI and MDI X configurations for flexibility when uplinking to another Class ij repeater using either cable type All NICs Network Interface Cards and Router ports are usually by default configured as MDI A simple illustration shows the relationship of cable types to port types Port Port For Connection to For Connection to a Network Connector Config Another Hub Port MDI X Adapter or Router MDI XE MDI X Use Crossover cable Use Straight through cable Use Straight through cable Use Crossover cable Table 1 Port Configurations Kingston Technology Company KNE24TX RS User s Guide Rev A01 Hardware Installation 9 Rear Panel e DN Jp Ga e e 04925 9 T00FX Fiber Module 9 100240VAC S000Mr20nMae P Or CoE kable
5. refer to Appendix A for pin assignments and Appendix B for cabling guidelines Utilization LEDs There are five utilization LEDs to display the amount of network traffic in five percentage levels The amount of data traffic is measured in frames per second FPS then calculated into the following percentage forms 196 12 25 50 and 100 The appropriate LED will light based on the network activity UTP and Uplink Ports The UTP ports on the front panel numbered 1 through 8 KNE8TX RS 1 through 12 KNEI2TX RS or 1 through 24 KNE24TX RS support 100BASE TX connections Since the crossover function is implemented on all UTP MDI X ports a straight through cable should be used to connect to a workstation The last UTP port on each model has two 2 RJ 45 connectors for support of cabling in the crossover and straight through configuration Only one of the two ports MDI X or MDI gt lt may be used KNE24TX RS User s Guide Rev A01 Kingston Technology Company 8 Hardware Installation Use the MDI X port Use the MDI port when connecting to 9 when connecting to a network card or a hub or other MDI X other MDI device device 8 gt 8 8 gt 8 Using Straight Through Cable Using a Crossover Cable Use the MDI port Use the MDI X port when connecting to when connecting to a network card or a hub or other MDI X other MDI device device 8 gt 8 8
6. 100 240VAC 50 60Hz 2 0A Max Fiber Module A 100 Fiber Module e 100BASE FX Fiber Optic Plug in Module Dual Fan Units optional AC Power Power Connector Switch Stacking Ports Fig 2 Hub Rear Panels with Stacking Cables Power Switch The power switch toggles power on and off to the unit The switch can also be used to reset the Fast EtheRx hub AC Power Connector The Fast EtheRx hubs use an auto sensing 100VAC 240VAC 50 60Hz internal power supply Connect the AC power cord from the rear of the unit to an AC electrical outlet WARNING For safety reasons DO NOT attempt to open and service the unit There are no user serviceable components inside Fan Units The Fast EtheRx hubs use two independent cooling fans for optimum air flow to safeguard the unit from unnecessary heat exposure 100FX Fiber Module Optional Kingston offers an optional plug in module to support 100BASE FX Fiber Optic cabling There are two models to support both Straight Tip ST and Subscriber Connect SC type connectors e KNEIOOTX RST for ST connectors KNE24TX RS User s Guide Rev A01 Kingston Technology Company 10 Hardware Installation e KNE100TX RSC for SC connectors Stacking Fast EtheRx Hubs The Fast EtheRx
7. 5 is a further extension of the EIA TIA 568 cabling system to 100 MHz Category 5 components ie UTP trunk and patch cables modular plug and patch panel etc are defined by EIA TIA 568 but with the characterizations extended to 100 MHz by TSB 36 and TSB 40 The cable grades are categorized as follows e Category 3 up to 16 MHz e Category 4 up to 20 MHz e Category 5 up to 100 MHz KNE24TX RS User s Guide Rev A01 Kingston Technology Company 22 Appendix D Commonly Asked Questions Category 5 Compliance vs Category 5 Performance Having CAT 5 components in your network installation does not necessarily achieve full Category 5 performance To achieve any category rated performance make sure all cabling components are at least of the minimum category required To achieve full CAT 5 performance all components must be CAT 5 compliant and terminated properly according to EIA TIA 568 TSB 36 and TSB 40 guidelines What are the Guidelines for Proper Termination It is important to maintain the twists of the cable as close to the termination on the outlet as possible to avoid NEXT Near End Cross Talk and to maintain the transmissions characteristics of the Category Category specifications require that pair twisting be maintained to within the following distances from the outlet termination e Category 3 maximum allowed untwisting 3 inches e Category 4 maximum allowed untwisting 1 inch e Category 5 maximum allowed untwi
8. Bei Fragen ber die Art der Netzspannung sollte der H ndler oder das Energieversorgungsunternehmen zu rate gezogen werden 6 Nicht versuchen das Produkt selbst zu reparieren In allen Produkten existieren gef hrliche elektrische Spannugen Nicht das Geh use ffnen Kingston Technology Company KNE24TX RS User s Guide Rev TABLE OF CONTENTS 18 Pm 2 Order Information 2 Model Types e Pn 3 Special Features 4 Package 4 Design Features uide ep ER D E 5 Repeater Functions 5 Jabber Lock up Protection 5 Collision Handling a 5 Error Handling eee 5 Automatic Partitioning Reconnection 6 Hardware Installation 6 Front Panel pe dete abt e ees 6 Power LED dotted 6 Collision LED zni hien uma Rade ete 6 Fiber Module Detection LED 6 UTP Port LEEDS 7 Utilization LEDSs 7 UTP and Uplink Ports 7 Using a Crossover Cable 8 Notes on MDI and MDI X Ports 8 rei 9 KNE24TX RS User s Guide Rev A01 Kingston Technology C
9. Collision Utilization and UTP port LEDs which display Link Activity and Partition Error status For the remainder of this manual the Fast EtheRx Stackable Fast Ethernet Hubs will be referred to collectively as the Fast EtheRx Hubs For clarity the three models will be differentiated as follows KNESTX RS Fast EtheRx Stackable 8 Port Fast Ethernet hub a KNEI2TX RS Fast EtheRx Stackable 12 Port Fast Ethernet hub KNE24TX RS Fast EtheRx Stackable 24 Port Fast Ethernet hub Order Information Kingston Technology Company KNE24TX RS User s Guide Rev A01 Introduction 3 The Fast EtheRx hubs support optional Fiber Optic plug in modules which can be ordered for future upgrading by the following part numbers KNE100FX RSC Optional 100BASE FX Fiber Optic Plug In Module with SC Subscriber Connect connectors KNE100FX RST Optional 100BASE FX Fiber Optic Plug In Module with ST Straight Tip connectors Model Types Kingston KNEBTX RS Fast EtheRx KNE8TX RS 8 Port Model 339999999999 2558933233838 Fast EtheRx KNEI2TX RS 12 Port Model Fast EtheRx KNE24TX RS KNE24TX RS User s Guide Rev A01 Kingston Technology Company Introduction Special Features 100BASE TX Class D or Class compliant repeater Stack up to six Fast EtheRx hubs to create a single repeater unit 8
10. KINGSTON TECHNOLOGY FAST ETHERX STACKABLE 8 PORT 12 PORT amp 24 PORT 100BASE TX 19 RACK MOUNTABLE FAST ETHERNET HUBS USER S GUIDE MODELS KNE8TX RS KNE12TX RS KNE24TX RS Kingston Technology s Fast EtheRx Stackable 8 Port 12 Port and 24 Port 100BASE TX 19 Rack Mountable Fast Ethernet Hubs User s Guide Part No 4460051 001 A01 DNE Z Ingston Kingston Technology Company 17600 Newhope Fountain Valley CA 92708 714 435 2600 Important Safety Instructions KNE24TX RS User s Guide Rev A01 Kingston Technology Company ak WN Read all these instructions Save these instructions for later use Follow all warnings and instructions marked on the product Do not use this product near water This product should be operated from the type of power source indicated on the marking label If you are not sure of the type of power available consult your dealer or local power company Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage points or other risk Refer all servicing to service personnel Wichtige Sicherheitshinweise A01 Diese Hinweise sollten vollst ndig durchgelesen werden Diese Hinweise f r einen sp teren Gebrauch aufbewahren Allen auf dem Ger t angebrachten Warnungen und Hinweisen folgen Das Ger t nicht in der N he von Wasser verwenden Das Ger t nur mit dem Aufkleber bezeichneten Netzspannung betreiben
11. Newhope Street Fountain Valley California 92708 U S A You must include the product serial number if applicable and a detailed description of the problem you are experiencing You must also include proof of the date of original retail purchase as evidence that the product is within the applicable warranty period If you return the product directly to the Kingston factory you must first obtain a Return Material Authorization RMA number by calling Kingston Customer Service at 714 438 1810 and include the RMA number prominently displayed on the outside of your package Products must be properly packaged to prevent damage in transit Free Technical Support Kingston provides free technical support If you experience any difficulty during the installation or subsequent use of a Kingston product please contact Kingston s Technical Support department prior to servicing your system Kingston Technical Support can be reached in the U S at 714 435 2639 or toll free at 800 435 0640 U S and Canada only Kingston European Technical Support can be reached from within the U K at 01932 738858 Kingston provides other service numbers when calling from Germany 0130 115 639 or fax 0130 860 599 from Austria 0660 5569 or fax 06 607 434 from Switzerland 0800 557 748 or fax 0800 552 182 from France 0800 905 701 or fax 0800 900 910 or from Belgium in English 0800 72763 This warranty covers only repair or replacement of defective Kingston product
12. Part 15 of the FCC Rules Operation is subject to the following conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation CE Notice The official CE symbol indicates compliance of this Kingston Technology product to the EMC directive of the European Community The CE symbol found here or elsewhere indicates that this Kingston product meets or exceeds the following standards ENS0081 1 Electromagnetic Compatibility generic emissions standard EN55022 Limits and methods of measurement of radio interference characteristics ENS0082 1 Electromagnetic Compatibility generic immunity standard IEC 801 2 Electrostatic discharge requirements 801 3 Radiated immunity requirements IEC 801 4 Electrical fast transient requirements EN60950 Low Voltage Directive LVD L Declaration of CE Conformity in accordance with the above standards has been made and is on file at Kingston Technology C Kingston Technology Company KNE24TX RS User s Guide Rev A01
13. Utilization Status steady green 1 LED for Fiber Module Detection optional RJ 45 Female Category 5 or better UTP 26 to 22 AWG 50 pin shielded cable Up to 6 hubs maximum 100m 328 ft Environmental Operating Temp Storage Temp Relative Humidity 0 C to 45 C 32 F to 113 F 20 C to 60 C 4 F to 140 F 10 to 90 non condensing Input Voltage 100 240V AC 50 60Hz Auto sense internal power supply SVDC 8A Power Consumption KNESTX RS 15 Watts maximum KNE12TX RS 21 Watts maximum H x Lx D 43 2mm x 440mm x 254mm Weight KNESTX RS 8 10 Ibs 3 69 kg KNEI2TX RS 8 18 Ibs 3 71 kg Safety Standards Optional Accessories Kingston Technology Company KNE24TX RS User s Guide Rev A01 Appendix C Specifications 19 100FX Modules Part Numbers with SC connectors KNE100FX RSC with ST connectors KNE100FX RST Specifications Fast EtheRx Model KNE24TX RS Compliance IEEE 802 30 100BASE TX Standard for 100Mb s baseband networks Media Interface 24 UTP ports for 100BASE TX connections 4 Diagnostic LEDs 24 LEDs for Link Green Activity flashing Green and Partition flashing Amber LED for Collision status Amber LED for Power Indicator Green LEDs for Utilization Status steady green LED for Fiber Module Detection steady green Inter repeater link No of repeaters Two 2 Class II repeaters maximum Cable Length 5 meters 16 4 feet Operating Temp Storage Temp Relative Humidity
14. bles terminators and accessories Five Year Warranty The following Kingston products are covered by this warranty for a period of five years from the date of original retail purchase the power supply in networking hubs without cooling fans and all other Kingston products other than those products covered by a three year two year or one year warranty as provided below Three Year Warranty The following Kingston products are covered by this warranty for a period of three years from the date of original retail purchase networking hubs with cooling fans including the power supply Two Year Warranty The following Kingston products are covered by this warranty for a period of two years from the date of original retail purchase Solid State Floppy Disk Cards SSFDC and Winchester hard disk drives in a 2 5 inch 3 5 inch or 5 25 inch form factor One Year Warranty The following Kingston products are covered by this warranty for a period of one year from the date of original retail purchase Winchester hard disk drives in a 1 8 inch form factor optical storage products and magnetic tape storage products Kingston Technology Company KNE24TX RS User s Guide Rev A01 Appendix F Warranties and Notices 25 Warranty Claim Requirements To obtain warranty service return the defective product freight prepaid and insured to your local authorized Kingston dealer or distributor or to the Kingston factory service center located at 17600
15. es The Fast EtheRx 100BASE TX hubs comply with the full set of repeater functions as defined by IEEE 802 3u clause 27 These functions include all Repeater Functions Signal Regeneration Jabber Lockup Protection Collision Handling Error Handling and Auto Partitioning Reconnection These functions are usually transparent to all network activities and are summarized below Repeater Functions If any single port senses the start of a valid packet on its receiving line the Fast EtheRx hub will re transmit the received data to all other ports on the network The retransmission of packets complies with the IEEE 802 3u specification in terms of preamble structure voltage amplitude and timing characteristics These timing regeneration s prevent cumulative signal loss jitter and distortion caused by the network cabling and allow the Fast EtheRx Hubs to be uplinked to another 100BASE TX switching hub or cascaded to other Class D Repeater Jabber Lock up Protection The Fast EtheRx hubs implement a built in jabber protection scheme to ensure that the network is not disabled due to transmission of excessively long data packets This protection scheme will automatically interrupt the reception of abnormally long streams of data to prevent jabber lock up Collision Handling The Fast EtheRx hubs will perform collision detection and respond to collision conditions as defined in the IEEE 802 3u specifications Error Handling With 100BASE
16. he rack See Figure E 1 below Fig E 1 Attaching the Mounting Brackets KNE24TX RS User s Guide Rev A01 Kingston Technology Company 24 Appendix F Warranties and Notices Appendix F Product Warranties and Notices Limited Warranty Statement KINGSTON TECHNOLOGY COMPANY Kingston warrants that this product is free from defects in material and workmanship Subject to the conditions and limitations set forth below Kingston will at its option either repair or replace any part of this product which proves defective by reason of improper workmanship or materials Repair parts or replacement products will be provided by Kingston on an exchange basis and will be either new or refurbished to be functionally equivalent to new This warranty does not cover any damage to this product which results from accident abuse misuse natural or personal disaster or any unauthorized disassembly repair or modification Duration of Warranty Lifetime Warranty The following Kingston products are covered by this warranty for life solid state memory e g memory modules and boards networking adapters networking hubs without cooling fans excluding the power supply solid state PC Card PCMCIA adapters and microprocessor upgrade products Seven Year Warranty The following Kingston products are covered by this warranty for a period of seven years from the date of original retail purchase storage enclosures including the power supply ca
17. hubs use stacking ports located on the rear panel to stack up to six hubs in any combination of 8 Port 12 Port or 24 Port models Follow the directions below to stack up to six hubs together 1 Locate the 50 pin shielded stacking cable included with your package contents 2 Plugone end of the cable into the port labeled Out on the first hub Plug the other end of the cable into the In port on the second hub Connect the AC power cord to each hub then flip the power switch to turn on power to the unit 5 Repeat the process to stack additional hubs up to a maximum of six 6 hubs Figure 3 below illustrates the configuration for stacking six of the 12 port model hubs expanding the total number of UTP port connections from 12 to 72 UTP ports while still being recognized as one single repeater unit on the network A maximum of six 6 Fast EtheRx hubs can be stacked in any combination of 8 12 and 24 port models Stack up to 6 hubs maximum Fig 3 Stacking Additional Hubs Kingston Technology Company KNE24TX RS User s Guide Rev A01 Hardware Installation 11 Installing the 100FX Module Optional Kingston offers two optional plug in modules to support 100 Fiber Optic cabling with either SC Subscriber Connector or ST Straight Tip connector types Model KNE100FX RSC supports SC
18. ing Guidelines for reference in creating a twisted pair cable The UTP port labeled 24 is a standard straight chrough UTP port All other UTP ports are configured as MDI X or internally crossed By default all repeating and switched UTP ports are generally configured as MDI X unless otherwise specified See Notes on MDI and MDI X for more details Modular Connector Fig A 1 RJ 45 Connector Pin Numbers 4 5 Not Used Not Used 7 8 Not Used Not Used Table A 1 UTP Pin Assignments KNE24TX RS User s Guide Rev A01 Kingston Technology Company 14 Appendix B Cabling Guidelines Appendix B Cabling Guidelines Cable Type When connecting network cables the following table shows appropriate cabling guidelines for 100BASE TX Fast Ethernet architecture Ethernet Standard 100BASE TX 4 Pair 1000 UTP CAT 5 only 2 pairs used Trunk and Patch Cable Type Max Cable Length Hub to Workstation Hub to Hub 100M 328ft 5M 16 4ft Modular Plug 8 Pin RJ 45 CAT 5 only Patch Panel 8 Pin RJ 45 CAT 5 only Table B 1 Network Cable Guidelines UTP Cable Wiring 100BASE TX unshielded twisted pair cables can be wired as Straight Through or in some cases Cross Over depending on the application For workstations connected to a hub use Straight Through wiring illustrated below in Table B 2 In some instances e g cascading from one hub to another
19. iring schemes will not work Pair 3 12345678 12345678 T568A T568B Fig B 1 4 Pair T568A Wiring Fig B 2 4 Pair T568B Wiring ST Paz T Saa T Pars Ts White Blue Green White Blue Table B 4 4 Pair T568A Wiring Table B 5 4 Pair T568B Wiring KNE24TX RS User s Guide Rev A01 Kingston Technology Company 16 AppendixB Cabling Guidelines UTP Cable Rating Codes UTP cables meet different UL NEC requirements based mostly on cable jacket quality Below is an explanation ofthe rating codes for each cable type UL The National Electrical Code NEC published by the National Fire Protection Association NFPA details advisory safety considerations for electrical wiring NEC Article 800 Communications Cables are manufactured to meet these different cable types 1 CMP Cables meeting type CMP requirements are suitable for installation in ducts and plenums without the use of conduit These cables are designed for fire resistance and low smoke and toxin producing characteristics 2 CMR Riser type cables are engineered to prevent the spread of fire from floor to floor and are suitable for vertical shaft applications 3 CM Cables for general building wiring CM cables are used in areas other than plenums and risers These cables are resistant to the spread of fire and pass the UL 1581Vertical Tray Flame Test 4 MP MPR amp MPP Within Article 800 the Multi purpose Cables Category allows co
20. nditional substitutions between different cable types amp are restricted by number AWG size and stranding of the cable conductors Terms You Should Be Familiar With 1 BACKBONE WIRING The physical electrical interconnections between telecommunications wiring closets and equipment rooms 2 COMPLIANCE A datacomm or wiring device that meets all characteristics of a standard is said to be in compliance with that standard 3 PREMISE WIRING The entire wiring system on the premises especially the supporting wiring that connects the communications outlets to the network interface jack Kingston Technology Company KNE24TX RS User s Guide Rev A01 Appendix B Cabling Guidelines 17 4 NEAR END CROSSTALK NEXT In wires packed together within a cable the signals generated at one end of the link can flush out the weaker signals coming back from the receiving end of the link KNE24TX RS User s Guide Rev A01 Kingston Technology Company 18 Appendix C Specifications Appendix C Specifications Fast EtheRx Models KNE8TX RS K NE12TX RS Compliance IEEE 802 3u 100BASE TX Standard for 100Mb s baseband networks Media Interface KNESTX RS 8 UTP ports for LOOBASE TX connections KNEI2TX RS 12 UTP ports for 100BASE TX connections Diagnostic LEDs 8 or 12 LEDs for Link Green amp Activity flashing green 8 or 12 LEDs for Partition flashing Amber 1 LED for Collision status Amber 1 LED for Power Indicator Green 5 LEDs
21. ompany Power Switch 9 AC Power Connector 9 Fan eene ets 9 100FX Fiber Module Optional 9 Stacking Fast EtheRx Hubs 10 Installing the 100FX Module Optional 11 n dita n e IIR eR aot edet 12 Appendix A Pin Assignments 13 UTP Port Pin Assignments 13 Appendix B Cabling Guidelines 14 Cable Wiring Standards 15 UTP Cable Rating Codes 16 Appendix Specifications 18 Appendix D Commonly Asked Questions 21 Appendix E Mounting Templates 23 Rubber Feet for Desktops 23 Brackets for Rack Mounting 23 Appendix F Product Warranties and Notices 24 Limited Warranty Statement 24 Duration of Warranty 24 Free Technical 25 DiSGlalmers dn 25 Certifications esses 26 Introduction Kingston Technology Company KNE24TX RS User s Guide Rev A01 2 Introduction Intended Audience This manual assumes that the user has a general working knowledge of networking principles and its architecture Congratulations
22. on the purchase of your Kingston Fast EtheRx Stackable 100BASE TX 19 Rack Mountable Fast Ethernet Hub There are three models available KNESTX RS KNEI2TX RS and KNE24TX RS 8 Port 12 Port and 24 Port Fast Ethernet hubs respectively The Fast EtheRx models are 100BASE TX Class D and Class compliant repeaters which conform to IEEE 802 3u 100Mb s CSMA CD Carrier Sense Multiple Access with Collision Detection networks using Category 5 Unshielded Twisted Pair UTP cabling There is also an optional 100BASE FX plug in module available for either SC or ST type connectors The Fast EtheRx 100BASE TX hubs operate at 100Megabits per second Mbp s out performing standard 10BASE T Ethernet 10Mb s operation by up to 10 times faster The Fast EtheRx hubs offer eight 8 twelve 12 or twenty four 24 UTP ports for 100BASE TX Fast Ethernet connections The last UTP port offers two RJ 45 connectors to support both crossover or straight through cable wiring for uplinking to one other 100BASE TX Class repeater The Fast EtheRx hubs can also be stacked using any combination of these 3 models up to six hubs using the stacking cable provided This allows a maximum of 48 72 or 144 UTP ports depending on the model on a single collision domain The Fast EtheRx hubs can be used on desktop or 19 inch rack mount installations mounting hardware included For easy trouble shooting the front panel includes a variety of diagnostic LEDs including Power
23. s as provided above Kingston is not liable for and does not cover under warranty any costs associated with servicing and or the installation of Kingston products Disclaimers The foregoing is the complete warranty for Kingston products and supersedes all other warranties and representations whether oral or written Except as expressly set forth above no other warranties are made with respect to Kingston products and Kingston expressly disclaims all warranties not stated herein including to the extent permitted by applicable law any implied warranty of merchantability or fitness for a particular purpose In no event will Kingston be liable to the purchaser or to any user of the Kingston product for any damages expenses lost revenues lost savings lost profits or any other incidental or consequential damages arising from the purchase use or inability to use the Kingston product even if Kingston has been advised of the possibility of such damages Copyright O 1997 Kingston Technology Company All rights reserved Printed in Taiwan Kingston Technology and the Kingston logo are trademarks of Kingston Technology Company All other logos and trademarks are property of their respective companies Revised 10 97 KNE24TX RS User s Guide Rev A01 Kingston Technology Company 26 Appendix F Warranties and Notices F C C Certification This device has been tested and found to comply with limits for Class A digital device pursuant to
24. sh For the Fast Ethernet CSMA CD network collisions can be quite common A collision occurs when two or more stations try to transmit data simultaneously Both stations will stop transmitting and then re transmit after a random period of time Fiber Module Detection LED The Fiber Module Detection LED will light up if the optional 100FX module is installed This LED will not light up if the optional 100FX module is not installed Kingston Technology Company KNE24TX RS User s Guide Rev A01 Hardware Installation 7 UTP Port LEDs The UTP Port LEDs indicate Link Activity Error and Partition status If a good link is established on any given port the green LED will be continuously lit indicating a valid network connection between the network node and the hub When data is received the LED will flash green If the port is partitioned or encounters an error such as jabber false carrier misalignment or invalid packet the LED will flash amber If an LED does not indicate a good link check the following 1 Make sure the power is turned on for both the PC and Fast EtheRx Hub The power LED should be lit 2 Verify the network drivers have been loaded on the PC Some adapters require the drivers to be loaded to establish a proper link 3 Make sure the cable is wired properly and connected on both ends 4 If steps 1 2 and 3 are correct the cable may be defective or not wired correctly Replace the cable and try again Please
25. sting 1 2 inch Can I mix CAT 3 and CAT 5 cabling in the same building Yes but keep in mind you will not have CAT 5 performance It is a good idea to keep the lines separated and when installing any new lines use CAT 5 UTP cabling only Can a Four Pair CAT 5 cable support two 100BASE TX devices Although only two pairs are used in the standard four pair CAT 5 UTP cable it is not recommended because it exceeds the specifications outlined by IEEE 802 3u Kingston Technology Company KNE24TX RS User s Guide Rev A01 Appendix F Warranties and Notices 23 Appendix E Mounting Templates The Fast EtheRx hubs can be stationed on a flat surface using the four rubber feet provided or mounted to a standard 19 inch rack by using the mounting brackets on each side of the unit Rubber Feet for Desktops The Fast EtheRx hubs may use rubber feet applied to the bottom of the unit for desktop surfaces or stacking hubs on top of one another The four 4 rubber feet have peel off adhesive backing Remove the backing and attach the feet to the bottom of the hub Brackets for Rack Mounting The Fast EtheRx hubs can also be mounted to a standard 19 inch rack by attaching the angle brackets to each side of the hub Align the holes in the brackets with the side mount holes on the hub Use the 8 bracket screws provided to attach the brackets When the hub is placed into a 19 inch rack use the 4 large knob rack mount screws to secure the hub to t
26. type connectors Model KNE100FX RST supports ST type connectors To upgrade your Fast EtheRx Stackable Fast Ethernet hub with either of the 100BASE FX plug in modules follow the directions below The procedure requires a Philips head screwdriver 1 4 s Locate the faceplate labeled 00FX Fiber Module on the rear panel of the hub Remove the four philips head screws to remove the faceplate Next insert the plug in module into the open slot Press firmly to secure the module into the socket connector Re install the four screws to secure the faceplate to the hub The FX ON LED will display a solid light if properly installed Figure 4 below illustrates the KNEI00FX RSC with SC type connectors installed into the rear panel of your EtheRx hub Figure 5 shows the KNE100FX RST with ST type connectors installed Fig 4 Model KNEI00FX RSC Fig 5 Model KNEI00FX RST with SC connectors with ST connectors KNE24TX RS User s Guide Rev A01 Kingston Technology Company 12 Appendices Kingston Technology Company KNE24TX RS User s Guide Rev A01 Appendix A Pin Assignments 13 Appendix A Pin Assignments UTP Port Pin Assignments The UTP ports use RJ 45 Unshielded Twisted Pair UTP cabling Connector pin numbers and pin wiring assignments are listed below in Figure 1 Twisted Pair cables can be wired with either straight through or crossover pin assignments Both wiring schemes are mentioned in Appendix B Cabl
27. you may use Cross Over wiring illustrated below in Table B 3 Crossover Cable Wiring Straight Through Cable Wiring Pin Number 1 TRX Pin Number Pin Number Pin Number RCV 2 3 RCV 3 6 RCV 1 TRX 6 RCV 6 RCV 2 TRX 4 5 7 8 Table 2 Straight Through Wiring Not Used Kingston Technology Company Not Used Table B 3 Cross Over Wiring KNE24TX RS User s Guide Rev A01 AppendixB Cabling Guidelines 15 Cable Wiring Standards There are two governmental agencies the Electronic Industry Association EIA and the Telecommunications Industry Association TIA which set the standard for all cable wiring requirements for commercial buildings With the advent of 100Mb s networking products it is best to use higher quality CAT 5 cables like Belden or Helix as well as CAT 5 compliant patch panels patch cables and connectors while following the EIA TIA wiring standards 100 UTP CAT 5 type cables use 4 pair UTP wiring Refer to the illustrations below for 4 pair 100Mb s wiring using either T568A Fig B 1 or T568B Fig B 2 wiring standards Both T568A and T568B wiring is compatible with 10BASE T and 100BASE TX and require no special configurations but stick to one wiring standard If your building is wired for T5684 any changes or additions must be done with the T568A wiring scheme Mixing the T568A and T568B w
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