Kingston Technology KND2415TX User Manual

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KINGSTONTECHNOLOGY

FASTETHERXSTACKABLE

24-PORT 10/100TX

RACK-MOUNTABLE

DUAL-SPEEDHUB

USER’SGUIDE

MODEL: KND2415TX

i

Kingston Technology’s

Fast EtheRx Stackable

10/100TX Rack-Mountable

Dual Speed Hub

User’s Guide

Part No. 4460174-001.A00

Kingston Technology Company

17600 Newhope

Fountain Valley, CA 92708

(714)435-2600

www.kingston.com

KND2415TX Users Guide - Rev. A00

Kingston Technology Company

ii

Important Safety Instructions

1.Read all these instructions.

2.Save these instructions for later use.

3.Follow all warnings and instructions marked on the product.

4.Do not use this product near water.

5.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.

6.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

1.Diese Hinweise sollten vollständig durchgelesen werden.

2.Diese Hinweise für einen späteren Gebrauch aufbewahren.

3.Allen auf dem Gerät angebrachten Warnungen und Hinweisen folgen.

4.Das Gerät nicht in der Nähe von Wasser verwenden.

5.Das Gerät nur mit dem Aufkleber bezeichneten Netzspannung betreiben. Bei Fragen über die Art der Netzspannung sollte der Händler oder dasEnergieversorgungsunternehmen zu rate gezogen werden.

6.Nicht versuchen das Produkt selbst zu reparieren. In allen Produkten existieren gefährliche elektrische Spannugen. Nicht das Gehäuse öffnen.

Kingston Technology Company

KND2415TX User’s Guide - Rev. A00

iii

TABLEOFCONTENTS

 

Introduction..........................................................................................

1

Special Features .....................................................................

2

Package Contents...................................................................

2

Design Features......................................................................

3

Hardware Installation...........................................................................

4

Front Panel .............................................................................

4

Power LED..................................................................

4

Collision LEDs ............................................................

4

100TX (Speed-Detection)LEDs .................................

4

Link / Activity LEDs .....................................................

4

10/100TX UTP Ports...................................................

5

Uplink Port ..................................................................

5

Rear Panel ..............................................................................

5

Power Switch..............................................................

6

AC Power Connector..................................................

6

Fuse............................................................................

6

Fan Unit(s)..................................................................

6

Stack-In /Stack-OutPorts ..........................................

7

Appendices

 

Appendix A Pin Assignments ................................................

10

Appendix B Cabling Guidelines ............................................

11

UTP Cable Type .......................................................

11

UTP Cable Wiring .....................................................

11

UTP Cable Wiring Standards....................................

12

UTP Cable Rating Codes .........................................

13

Appendix C Speci cations ....................................................

14

Appendix D Commonly Asked Questions .............................

15

Appendix E Mounting Templates...........................................

17

Appendix F Product Warranties and Notices ........................

18

Limited Warranty Statement .....................................

18

Duration of Warranty.................................................

18

Warranty Claim Requirements..................................

19

Free Technical Support.............................................

19

Disclaimers ...............................................................

19

F.C.C. Certi cation....................................................

20

CE Notice..................................................................

20

C-TickCerti cation ...................................................

20

KND2415TX Users Guide - Rev. A00

Kingston Technology Company

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Kingston Technology Company

KND2415TX User’s Guide - Rev. A00

Introduction

1

Introduction

Intended Audience: This manual assumes that the user has a general working knowledge of networking principles and is familiar with network systems in general.

Congratulations on the purchase of your Kingston Fast EtheRx Stackable 10/100TX Rack-MountableDual Speed hub. The KND2415TX is a full 19”rack-mountunit. The Fast EtheRx Stackable 10/100TXDual-Speedhub conforms to IEEE802.3u100BASE-TX,IEEE802.3i10BASE-T,and IEEE802.3 CSMA/CD standards. A maximum of four KND2415TX units can be stacked together.

IMPORTANT: The KND2415TX can only be stacked with other KND2415TX units. Stacking the unit with any other model hub may cause damage to the units.

For ease of installation, the Fast EtheRx Stackable Dual Speed hub offers twenty-four(24) UTP ports thatauto-negotiate10/100Mbps operation and an uplink port that allows the last UTP port on the hub to support both crossover andstraight-throughcabling. Ideal forinter-connecting10BASE-TEthernet networks with100BASE-TXFast Ethernet networks, the Fast EtheRxDual-speedhubs can also be used as simplestand-alone10BASE-Tor100BASE-TXrepeaters. For easytrouble-shooting,the front panel includes a variety of diagnostic LEDs such as Power, Collision for 10Mbps and 100Mbps, 100TX, Link, and Activity status.

Fig. 1-1KND2415TX

KND2415TX Users Guide - Rev. A00

Kingston Technology Company

2

Special Features

Special Features

Conforms to IEEE802.3u 100BASE-TX,IEEE802.3i10BASE-T,and IEEE802.3 CSMA/CD standards

Inter-connects10BASE-TEthernet networks with100BASE-TXFast Ethernet networks

Works as a simple 100BASE-TXor10BASE-Trepeater10/100BASE-TXClass compliant repeater

Stacking ports for stacking up to four (4) hubs maximum

24 UTP ports that auto-negotiate10/100TX operation

24 100TX LEDs for 100Mbps speed detection

24 Link / Activity status LEDs for easy troubleshooting

Individual collision LEDs for both 10Mbps and 100Mbps collision detection

1 Power LED for power status

Automatic port partitioning / reconnection

Uplink port that supports both crossover and straight-throughcable wiring

Internal auto-sensingpower supply operating at100-240VAC(50/60Hz)

Desktop or rack-mountable

Package Contents

The Fast EtheRx Dual-Speedpackage should contain the following items:

rKND2415TX Dual Speed Hub

r50-pinShielded Stacking Cable

rAC Power Cord

rMounting kit including:

(2)Angle Brackets

(8) Mounting Bracket Screws

(4) 10/32” Rack-Mountthumb screws

(4) Rubber feet

rUser’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 the unit, it’s not a genuine Kingston product.

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KND2415TX User’s Guide - Rev. A00

Design Features

3

Design Features

The Fast EtheRx dual-speedhub complies with the full set of repeater basic functions as de ned by IEEE802.3u100BASE-TX,IEEE802.3i10BASE-T,and IEEE802.3 CSMA/CD standards.

Repeater Functions

If any single port senses the start of a valid packet on its receiving line, the dual-speedhub willre-transmitthe received data to all other ports on the network. There-transmissionof packets complies with the IEEE 802.3 speci cation in terms of preamble structure, voltage amplitude, and timing characteristics.

Auto-Negotiation

Auto-Negotiationprovides the means of automatically establishing a link by detecting the link capabilities of the connected device on the network to select the best operational mode available (i.e. 10/100Mbps selection)

Receive Jabber Protection

The dual-speedhub uses a Receive Jabber Protection scheme to ensure that the network is not disabled due to reception of excessively long data packets.

Collision-Handling

The dual-speedhub will detect and respond to collision conditions as outlined in the IEEE 802.3 speci cations.

Error-Handling

With 100BASE-TXFast Ethernet, the newerror-handlingfeature preventssub-standardlinks from generating streams of false carrier and interfering with other links.

Automatic Port Partitioning / Reconnection

If any of the ports on the dual-speedhub experience excessive 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 received or transmitted without a collision, the hub will automatically reconnect that port to the network.

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Hardware Installation

Hardware Installation

Before you begin installing network cables, please take a few minutes to familiarize yourself with the dual-speedhub. See the diagram below:

Front Panel

Fig. 3-1Front Panel

Power LED

The green LED indicates the power status. The LED will light up when the AC power connector is properly connected to a power source.

Collision LEDs

There are two (2) separate collision LEDs for both 10Mbps and 100Mbps segments. If a collision is detected on a 10Mbps segment, the “10” LED will ash amber. If a collision is detected on a 100Mbps segment, the “100” LED will ash amber. Collisions occur when 2 or more ports receive data simultaneously

100TX (Speed-Detection)LEDs

The 100TX LED lights up when 100Mbps operation is detected. The 100TX LED will not light up if 10Mbps operation is detected.

Link / Activity LEDs

The LINK / ACTIVITY LEDs service both 10BASE-Tand100BASE-TXoperation. A steady green light indicates that a good link has been established. Aashing green light indicates that data is being received.

If the Link LED does not display a steady green link light, please check the following:

1.Make sure the power is turned on for both the PC and EtheRx hub.

2.Verify that the correct network drivers have been loaded on the PC. Some network adapters require the drivers to be loaded to establish a proper link.

3.Make sure the correct cable type is selected.

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KND2415TX User’s Guide - Rev. A00

Hardware Installation

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4.Make sure the cable is wired properly and connected on both ends.

5.If steps 1 through 4 are correct, the cable may be defective or not wired correctly. Please refer to Appendix A for pin assignments and Appendix B for cabling guidelines.

10/100TX UTP Ports

The twenty-four(24) 10/100TX UTP portsauto-negotiateboth10BASE-Tand100BASE-TXconnections. . All ports like all normal hub ports are con gured asMDI-X.However, port 24, supports bothMDI-Xand MDI port con guration.

Uplink Port

The uplink port provides cabling exibility on UTP port 24 for connecting to a workstation NIC or cascading to another hub. Although these ports have two (2) UTP connections, MDI and MDI-X,only one port may be used.

Notes on MDI and MDI-XPorts

MDI (Media Dependent Interface) is the standard that de nes the mechanical and electrical con guration of a UTP port. For any two devices to communicate with each other, the transmitter of one device must be connected to the receiver of the other device.

Table 3-1MDI&MDI-XCon guration

Rear Panel

Power

AC Power Switch

Connector

U S E O N L Y W I T H A 2 5 0 V F U S E

Stack-in /Stack-OutPorts

Fan

Fuse (250V, 2A)

Fig. 3-2Rear Panel

KND2415TX Users Guide - Rev. A00

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Hardware Installation

Power Switch

The AC Power switch turns the unit ON or OFF. If the PWR LED does not light up once the unit has been turned on, try the procedures below (in the following order):

1.Try a different AC power outlet.

2.Check the external fuse located at the back of unit (below the AC power connector). If the fuse is blown, replace it with the spare fuse provided with the unit. (See Fuse Compartment display in Figure 3-3)

3.The power supply may be defective. Return the unit for replacement.

WARNING: For safety reasons, DO NOT attempt to open and service the unit. There are no user-serviceablecomponents inside.

AC Power Connector

The Fast EtheRx dual-speedhubs use100-240VACinternal power supplies. Connect the AC power cord from the back of the unit to an AC electrical outlet.

Fuse

The Fast EtheRx dual-speedhub comes equipped with one external fuse and one spare fuse. Both fuses are in a fuse holder located just below the AC power connector on the back of the unit. Both fuses are rated 250V/2A max.

Fig. 3-3Fuses

Fan Unit(s)

The Fast EtheRx dual-speedhubs use independent cooling fans for optimumair-owto safeguard the unit from unnecessary heat exposure.

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KND2415TX User’s Guide - Rev. A00

Hardware Installation

7

Stack-In /Stack-OutPorts

Fig. 3-4Stacking Con guration

The Fast EtheRx stackable hub uses stacking ports located on the back of the unit to stack up to a maximum of four hubs.

IMPORTANT: The KND2415TX can only be stacked with other KND2415TX units. Stacking the unit with any other model hub may cause damage to the units.

Follow the directions below on stacking these hubs together:

1.Power down the Fast EtheRx hub(s).

2.Locate the 50-pinshielded stacking cable included with your package contents.

3.Plug one end of the cable into the port labeled, “Stack-Out”on the rst hub.

4.Plug the other end of the cable into the “Stack-In”port on the second hub.

5.Repeat steps 2 through 4 for stacking up to a maximum of four (4) hubs.

Kingston’s Stack-n-Play™feature offers greater scalabilty to add UTP ports without the need to con gure ID or termination switches. When con gured as a stack, the Fast EtheRx stackable hubs are recognized as a single unit on the network. By stacking hubs together, you can expand the total number of UTP ports up to 96 ports.

KND2415TX Users Guide - Rev. A00

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KND2415TX User’s Guide - Rev. A00

Appendices

9

Appendices

KND2415TX Users Guide - Rev. A00

Kingston Technology Company

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Appendix A Pin Assignments

Appendix A Pin Assignments

UTP Port Pin Assignments

UTP Ports use RJ-45Unshielded Twisted Pair (UTP) cabling.RJ-45modular plugs and their pin numbers and wiring assignments are listed below. TwistedPair cables can be wired with eitherStraight-Throughor Crossover pin assignments. Both wiring schemes are mentioned in “Appendix B Cabling Guidelines” for reference in creating atwisted-paircable.

Fig. A-1RJ-45Connector Pin Numbers

Table A-1UTP Pin Assignments

(NOTE: For further details, refer to Notes on MDI & MDI-X on page 5)

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KND2415TX User’s Guide - Rev. A00

Appendix B Cabling Guidelines

11

Appendix B Cabling Guidelines

UTP Cable Type

When installing network cables, the following table shows appropriate cabling guidelines for 100BASE-TXFast Ethernet architecture.

Table B-1Network Cable Guidelines

(NOTE: All UTP cables come in both solid and stranded lament. Solidlament cables are more rigid and usually intended for trunk cabling. Stranded lament cables are more pliable and generally targeted for patch cables. For proper termination, use the correct RJ-45connector, as they differ for each type of cable.)

UTP Cable Wiring

UTP cables are wired based on one of two standard pin con gurations: StraightThrough andCross-Over.100BASE-TXuses onlyCategory-5UTP cables with four pairs of wire as illustrated below in TablesB-2andB-3.

Straight-Through

Con guration

Cross-Over

Con guration

Table B-2Straight-ThroughWiring

Table B-3Cross-OverWiring

KND2415TX Users Guide - Rev. A00

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Appendix B Cabling Guidelines

UTP 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-compliantpatch panels, patch cables, and connectors while following the EIA/TIA wiring standards. 100 W UTP CAT 5 type cables use4-pairUTP wiring.

Refer to the illustrations below for 4-pairwiring using either T568A (Fig.B-1)or T568B (Fig.B-2)wiring standards. Both T568A and T568B wiring is compatible with10BASE-Tand100BASE-TXand require no special con gurations, but for premise wiring, stick to one wiring standard. Mixing T568A and T568B wiring schemes may cause or lead to potential problems.

Fig. B-14-PairT568A Wiring

 

Fig. B-24-PairT568B Wiring

 

 

 

 

 

 

 

 

 

 

 

T568A

Pairs

Strand

Solid

 

T568B

Pairs

Strand

Solid

Pin 1

Pair 3

Blue

White/Green

 

Pin 1

Pair 2

Black

White/Orange

Pin 2

Pair 3

Orange

Green/White

 

 

Pin 2

Pair 2

Yellow

Orange/White

 

Pin 3

Pair 2

Black

White/Orange

 

Pin 3

Pair 3

Blue

White/Green

Pin 4

Pair 1

Red

Blue/White

 

Pin 4

Pair 1

Red

Blue/White

Pin 5

Pair 1

Green

White/Blue

 

Pin 5

Pair 1

Green

White/Blue

Pin 6

Pair 2

Yellow

Orange/White

 

 

Pin 6

Pair 3

Orange

Green/White

 

Pin 7

Pair 4

Brown

White/Brown

 

 

Pin 7

Pair 4

Brown

White/Brown

 

Pin 8

Pair 4

White

Brown/White

 

Pin 8

Pair 4

White

Brown/White

Table B-44-PairT568A Wiring

 

Table B-54-PairT568B Wiring

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KND2415TX User’s Guide - Rev. A00

Appendix B Cabling Guidelines

13

UTP Cable Rating Codes

UTP cables meet different UL-NECrequirements based oncable-jacketquality. Below is an explanation of the 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 re resistance andlow-smokeproducing characteristics.

2.CMR – Riser type cables are engineered to prevent the spread of re from oor to oor 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 re and pass the UL 1581Vertical Tray Flame Test.

4.MP, MPR & MPP – Within Article 800, theMulti-purposeCables Category allows conditional substitutions between different cable types & 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 closets and equipment rooms.

2.COMPLIANCE – A 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.

4.NEAR-END CROSSTALK (NEXT) – In wires packed together within a cable, the signals generated at one end of the link can ush out the weaker signals coming back from the recipient.

KND2415TX Users Guide - Rev. A00

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14 Appendix C Specifications

Appendix C Speci cations

Compliance:

IEEE 802.3u 100BASE-TXStandard

 

IEEE 802.3i 10BASE-TStandard

 

IEEE 802.3 CSMA/CD Ethernet Standard

Media Interface:

24 auto-negotiating10/100 Mbps UTP Ports

Connector Type:

Female RJ-45

Cable Type:

UTP 26 to 22 AWG

Cable Grade

 

10BASE-T:

CAT 3, 4, 5 or better

1000BASE-TX:

CAT 5 or better

Max. Segment Length:

100 meters (328 feet)

Number of Segments:

2 segments, 10 Mbps or 100 Mbps

Inter-repeaterLink

 

Number of Repeaters:

2 Class II repeaters max.

Cable Length:

5 meters (16.4 feet) max. between repeaters

Diagnostic LEDs:

m 1 LED for Power Indicator (steady green),

 

m 1 LED for 10 Mbps Collision Detection

 

( ashing amber),

 

m 1 LED for 100 Mbps Collision Detection

 

( ashing amber),

 

m 24 LEDs for100BASE-TXSpeed Detection

 

(steady green).

Additional Stacking:

Up to 4 max.

Stacking Cable:

50 pins shielded cable

Uplink Port:

Port 24 supports cross-overorstraight-throughcabling

Environmental

Operating Temperature:

0°C to 45°C (32°F to 113°F)

Storage Temperature:

-20°Cto 60°C(-4°Fto 140°F)

Relative Humidity:

10% to 90% non-condensing

Electrical

Input AC Voltage:

100VAC to 240VAC, 50Hz/60Hz Auto-sensing

Output DC Voltage:

5VDC/8A

Power Consumption:

19.20 Watts max.

Physical

Dimension (HxWxD):

1.70” x 17.32” x 7.90” (43.2mm x 440mm x 200.6mm)

Weight:

6.2 lbs (2.81 kg)

Certi cation

EMI Standards:

FCC Class A, CE CISPR A, C-Tick

EMC Standards:

EN55022, IEC801-2,IEC801-3,IEC801-4

Low Voltage Directive:

EN60950

Safety Standards:

UL, cUL, TUV

 

 

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KND2415TX User’s Guide - Rev. A00

Appendix D Commonly Asked Questions

15

Appendix D Commonly Asked Questions

 

Class J vs. ClassJJ 100BASE-TXFast Ethernet Repeaters

There are currently two classes of Fast Ethernet repeaters, de ned as Class J and ClassJJ .

Class J : in a maximum length segment topology, onlyone ClassJ repeater may exist between any two nodes within a single collision domain.

Class JJ : in a maximum length segment topology,two ClassJJ repeaters may exist between any two nodes within a single collision domain.

Will 100BASE-TXrun on Category 3 cable?

No! Category 3 (CAT 3) cabling even in short lengths generates too much near end crosstalk for 100BASE-TXnetworks. The IEEE 802.3u100BASE-TXFast Ethernet standard requires Category 5 100 W UTP or 100 W STP which complies with ISO/IEC 11801:1995.

What is Category 5?

Category 5 (CAT 5) is a further extension of the EIA/TIA-568cabling system to 100 MHz. Category 5 components (i.e., UTP trunk and patch cables, modular plug, and patch panel, etc.) are de ned byEIA/TIA-568,but with the characterizations extended to 100 MHz byTSB-36andTSB-40.The cable grades are categorized as follows:

Category 3: up to 16 MHz

Category 4: up to 20 MHz.

Category 5: up to 100 MHz.

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-ratedperformance, 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-568TSB-36andTSB-40guidelines.

KND2415TX Users Guide - Rev. A00

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