Kingston Technology KNE12TX/RS Bedienungsanleitung

KINGSTON TECHNOLOGY

FAST ETHERXSTACKABLE

8-PORT, 12-PORT, & 24-PORT

100BASE-TX 19” RACK-MOUNTABLE

FAST ETHERNET HUBS

USER’S GUIDE

MODELS: KNE8TX/RS

KNE12TX/RS

KNE24TX/RS

KNE24TX/RS User’s Guide - Rev. A01 Kingston Technology Company

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

Kingston Technology Company

17600 Newhope

Fountain Valley, CA 92708

(714) 435-2600

Important Safety Instructions

Kingston Technology Company KNE24TX/RS User’s Guide - Rev.

A01

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 das

Energieversorgungsunternehmen zu rate gezogen werden.

6. Nicht versuchen das Produkt selbst zu reparieren. In allen

Produkten existieren gefährliche elektrische

Spannugen. Nicht das Gehäuse öffnen.

KNE24TX/RS User’s Guide - Rev. A01 Kingston Technology Company

TABLE OF CONTENTS

Introduction ............................................................................ 2

Order Information ..................................................... 2

Model Types ............................................................. 3

Special Features....................................................... 4

Package Contents .................................................... 4

Design Features .................................................................... 5

Repeater Functions .................................................. 5

Jabber Lock-up Protection ....................................... 5

Collision-Handling..................................................... 5

Error-Handling .......................................................... 5

Automatic Partitioning/Reconnection ....................... 6

Hardware Installation............................................................. 6

Front Panel ............................................................... 6

Power LED .................................................. 6

Collision LED ............................................... 6

Fiber Module Detection LED ....................... 6

UTP Port LEDs ............................................ 7

Utilization LEDs ........................................... 7

UTP and Uplink Ports .................................. 7

Using a Crossover Cable ............................ 8

Notes on MDI and MDI-X Ports................... 8

Rear Panel................................................................ 9

Kingston Technology Company KNE24TX/RS User’s Guide - Rev. A01

Power Switch .............................................. 9

AC Power Connector .................................. 9

Fan Units..................................................... 9

100FX Fiber Module (Optional)................... 9

Stacking Fast EtheRx Hubs ...................... 10

Installing the 100FX Module (Optional) .... 11

Appendices ......................................................................... 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 C 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 Support............................. 25

Disclaimers................................................ 25

Certifications ............................................. 26

Introduction

2 Introduction

Kingston Technology Company KNE24TX/RS User’s Guide - Rev. A01

Intended Audience: This manual assumes that the user has a general working

knowledge of networking principles and its architecture.

Congratulations on the purchase of your Kingston Fast EtheRx Stackable

100BASE-TX 19” Rack-Mountable Fast Ethernet Hub. There are three models

available: KNE8TX/RS, KNE12TX/RS, and KNE24TX/RS, 8-Port, 12-Port,

and 24-Port Fast Ethernet hubs, respectively. The Fast EtheRx models are

100BASE-TX Class

and Class II 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, 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:

 KNE8TX/RS – Fast EtheRx Stackable 8-Port Fast Ethernet hub

 KNE12TX/RS – Fast EtheRx Stackable 12-Port Fast Ethernet hub

 KNE24TX/RS – Fast EtheRx Stackable 24-Port Fast Ethernet hub

Order Information

Introduction 3

KNE24TX/RS User’s Guide - Rev. A01 Kingston Technology Company

The Fast EtheRx hubs support optional Fiber Optic plug-in modules which can

be ordered for future upgrading by the following part numbers:

Accessories

Part No. Description

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

100BaseTX Fast Ethernet Stackable Hub

KNE8TX/RS

Utilization %

1 2 3 4 5 6 7 8

PWR COL FX/ON

78 x

653 4

100BaseTX Class Repeater

MDI-X MDI

1 12 25 50 100

Link / Act

Error / Partition

Fast EtheRx KNE8TX/RS

8-Port Model

100BaseTX Fast Ethernet Stackable Hub

KNE12TX/RS

Utilization %

1 12 25 50 100

Link / Act

1 2 3 4 5 6 7 8 9 10 11 12

Error / Partition

PWR COL FX/ON

1211 12 x

109 11 12 x

1097 8

653 4

100BaseTX Class Repeater

MDI-X MDI

Fast EtheRx KNE12TX/RS

12-Port Model

Fast EtheRx KNE24TX/RS

5 6 78 9101112

17 18 19 20

1234

13 14 15 16 21 22 23 24

Class

Repeater

100BASE-TX

PWR COLL

FX/ON

KNE24TX/RS

1234

13 14 15 16

5678

17 18 19 20

9101112

21 22 23 24

UTIL%

502512160

Link / Act / P rtition

St ck ble 100BASE-TX

F st Ethernet Hub

4 Introduction

Kingston Technology Company KNE24TX/RS User’s Guide - Rev. A01

Special Features

•100BASE-TX Class

or Class II compliant repeater

•Stack up to six Fast EtheRx hubs to create a single repeater unit

•8, 12, or 24 UTP ports for 100BASE-TX connection

•8, 12, or 24 Link, Activity, and Partition/Error Status LEDs for easy

troubleshooting

•Optional 100BASE-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 II 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:

ο Fast EtheRx Stackable 8-, 12-, or 24-Port Fast Ethernet Hub

KNE8TX/RS or KNE12TX/RS or KNE24TX/RS

ο50-pin shielded stacking cable

οAC power cord

οMounting kit includes:

(2) Angle brackets

(8) Bracket mounting screws

(4) 10/32” Rack-Mount screws

(4) Rubber Feet

οUser'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.

Design Features 5

KNE24TX/RS User’s Guide - Rev. A01 Kingston Technology Company

Design Features

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

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-TX Fast Ethernet, the new error-handling feature prevents sub-

standard links from generating streams of false carrier and interfering with

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