Kingston Technology KNE8TX-RS User Manual

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KINGSTONTECHNOLOGY

FASTETHERXSTACKABLE

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

100BASE-TX19”RACK-MOUNTABLE

FASTETHERNETHUBS

USER’SGUIDE

MODELS: KNE8TX/RS

KNE12TX/RS

KNE24TX/RS

Kingston Technology’s

Fast EtheRx Stackable

8-Port,12-Port,and24-Port100BASE-TX19”Rack-MountableFast 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

KNE24TX/RS User’s Guide - Rev. A01

Kingston Technology Company

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.

Kingston Technology Company

KNE24TX/RS User’s Guide - Rev.

A01

 

 

 

i

TABLEOFCONTENTS

 

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

 

2

Order Information .....................................................

 

2

Model Types .............................................................

 

3

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

 

4

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

 

4

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

 

5

Repeater Functions ..................................................

 

5

Jabber Lock-upProtection .......................................

 

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-XPorts...................

8

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

 

9

KNE24TX/RS User’s Guide - Rev. A01

Kingston Technology Company

ii

 

 

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

 

 

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 on the purchase of your Kingston Fast EtheRx Stackable 100BASE-TX19”Rack-MountableFast Ethernet Hub. There are three models available: KNE8TX/RS, KNE12TX/RS, and KNE24TX/RS,8-Port,12-Port,and24-PortFast Ethernet hubs, respectively. The Fast EtheRx models are100BASE-TXClassI and ClassII 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 optional100BASE-FXplug-inmodule available for either SC orST-typeconnectors. The Fast EtheRx100BASE-TXhubs operate at 100Megabits per second (Mbp/s)out-performingstandard10BASE-TEthernet 10Mb/s operation by up to 10 times faster.

The Fast EtheRx hubs offer eight (8), twelve (12), or twenty-four(24) UTP ports for100BASE-TXFast Ethernet connections. The last UTP port offers twoRJ-45connectors to support both crossover orstraight-throughcable wiring for uplinking to one other100BASE-TXClassII 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 or19-inchrack-mountinstallations (mounting hardware included). For easytrouble-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-PortFast Ethernet hub

KNE12TX/RS – Fast EtheRx Stackable 12-PortFast Ethernet hub

KNE24TX/RS – Fast EtheRx Stackable 24-PortFast 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-inmodules which can be ordered for future upgrading by the following part numbers:

Accessories

 

Part No.

 

 

Description

 

 

KNE100FX/RSC Optional 100BASE-FXFiber OpticPlug-InModule with SC (Subscriber Connect) connectors

KNE100FX/RST Optional 100BASE-FXFiber OpticPlug-InModule with ST (Straight Tip) connectors

Model Types

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100BaseTX Class II Repeater

100BaseTX Fast Ethernet Stackable Hub

 

 

 

Utilization %

 

1

2

3

4

5

6

7

8 x

8

 

 

1

12

25

50 100

 

 

 

 

 

 

 

 

 

 

Link / Act

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR

COL FX/ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KNE8TX/RS

1

2

3

4

5

6

7

8

 

 

 

 

 

 

 

 

 

FX

 

Error / Partition

 

 

 

 

 

 

 

 

 

MDI-X

MDI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fast EtheRx KNE8TX/RS

8-PortModel

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

100BaseTX Class II Repeater

100BaseTX Fast Ethernet Stackable Hub

 

 

 

 

 

 

 

Utilization %

 

1

2

3

4

5

6

7

8

9

10

11 12 x

12

 

 

 

 

 

 

1

12

25

50 100

 

 

 

 

 

 

 

 

 

 

 

 

PWR

COL FX/ON

 

 

 

Link / Act

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KNE12TX/RS

1

2

3

4

5

6

7

8

9

10

11

12

 

 

 

 

 

 

 

 

 

 

 

 

FX

 

 

 

Error / Partition

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MDI-X

MDI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fast EtheRx KNE12TX/RS

12-PortModel

1

2

3

4

5

6

7

8

9

10

11

12

100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

 

Class

II

Repeater

Stackable 100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fast Ethernet Hub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KNE24TX/RS

 

 

 

 

 

 

 

 

 

 

 

 

24

 

13

14

15

16

17

18

19

20

21

22

23

24

 

 

Fast EtheRx KNE24TX/RS

KNE24TX/RS User’s Guide - Rev. A01

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4

Introduction

Special Features

100BASE-TXClassI or ClassII compliant repeater

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

8, 12, or 24 UTP ports for 100BASE-TXconnection

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

Optional 100BASE-FXmodules 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-throughcable wiring for cascading to another100BASE-TXClassII repeater

Conforms to IEEE 802.3u 100BASE-TXstandard and Repeater for 100Mb/s baseband networks

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

19-inchRack Mountable with mounting kit included

Package Contents

Your Fast EtheRx Stackable package should contain the following items:

οFast EtheRx Stackable 8-,12-,or24-PortFast Ethernet Hub

KNE8TX/RS or KNE12TX/RSor KNE24TX/RS

ο50-pinshielded stacking cable

οAC power cord

οMounting kit includes:

(2) Angle brackets

(8) Bracket mounting screws

(4) 10/32” Rack-Mountscrews

(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.

Kingston Technology Company

KNE24TX/RS User’s Guide - Rev. A01

Design Features

5

Design Features

The Fast EtheRx 100BASE-TXhubs 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, CollisionHandling,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-transmitthe 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 another100BASE-TXswitching hub or cascaded to other ClassII Repeater.

Jabber Lock-upProtection

The Fast EtheRx hubs implement a built-injabber 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 jabberlock-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-TXFast Ethernet, the newerror-handlingfeature prevents substandard 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

Fiber Module Detection LED Utilization LEDs

100BASE-TXUTP Ports

 

1

2

3

4

5

6

7

8

9

10

11

12

100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Class II

Repeater

Stackable 100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

 

 

Fast Ethernet Hub

 

 

 

 

 

 

 

 

 

 

 

 

 

KNE24TX/RS

 

 

 

 

 

 

 

 

 

 

 

24

 

13

14

15

16

17

18

19

20

21

22

23

24

 

Power LED

 

Link / Activity / Partition LEDs

 

 

Collision LED

 

Uplink Ports

 

 

 

 

Fig. 1. Front Panel - 24-PortModel

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 flash. 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-transmitafter 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 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: 1%, 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 (KNE12TX/RS), or 1 through 24 (KNE24TX/RS), support 100BASE-TXconnections. Since the crossover function is implemented on all UTPMDI-Xports, astraight-throughcable should be used to connect to a workstation. The last UTP port on each model has two (2)RJ-45connectors for support of cabling in the crossover andstraight-throughconfiguration. Only one of the two ports,MDI-Xor MDI ( or ), may be used.

KNE24TX/RS User’s Guide - Rev. A01

Kingston Technology Company

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Hardware Installation

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the MDI-Xport

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the MDI port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

when connecting to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

when connecting to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a network card or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a hub or other MDI-X

 

 

 

 

 

 

 

 

 

 

 

 

 

other MDI device.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

device.

8

 

 

 

 

 

 

8

 

 

 

 

8

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using a Straight-ThroughCable

 

 

 

 

 

 

 

 

 

 

Using a Crossover Cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the MDI port

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Use the MDI-Xport

 

 

 

 

 

 

 

 

 

 

 

 

 

when connecting to

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

when connecting to

 

 

 

 

 

 

 

 

 

 

 

 

 

a network card or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

a hub or other MDI-X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

other MDI device.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

device.

8

 

 

 

 

 

 

8

 

 

 

8

 

 

 

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Notes on MDI and MDI-XPorts

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-Xport, which implements the crossover internally.

Ports 1 thru 7 (KNE8TX/RS), ports 1 thru 11 (KNE12TX/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-45connectors in order to support both MDI andMDI-Xconfigurations for flexibility when uplinking to another ClassII 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)

 

 

 

 

 

 

 

MDI-X

 

 

Use Crossover cable

 

 

Use Straight-throughcable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

MDI

 

 

Use Straight-throughcable

 

 

Use Crossover cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 1. Port Configurations

Kingston Technology Company

KNE24TX/RS User’s Guide - Rev. A01

Hardware Installation

9

Rear Panel

 

OUT

 

 

IN

 

100FX Fiber Module

Module

PWR

100-240VAC /50-60Hz2.0A Max

 

OUT

 

 

 

IN

 

 

100FX Fiber Module

Module

100-240VAC /50-60Hz2.0A Max

PWR

 

 

OUT

 

 

 

IN

 

 

100FX Fiber Module

Stackable Module

100-240VAC /50-60Hz2.0A Max

PWR

 

100BASE-FXFiber Optic

Stacking Ports

AC Power

Power

Plug-inModule

Dual Fan Units

Connector

Switch

(optional)

 

 

 

 

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-sensing100VAC-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-serviceablecomponents 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-inmodule to support100BASE-FXFiber Optic cabling. There are two models to support bothStraight-Tip(ST) and Subscriber Connect (SC) type connectors:

KNE100TX/RST for ST connectors

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

10

Hardware Installation

KNE100TX/RSC

for SC connectors.

Stacking Fast EtheRx Hubs

The Fast EtheRx hubs use stacking ports located on the rear panel to stack up to six hubs in any combination of 8-Port,12-Port,or24-Portmodels. Follow the directions below to stack up to six hubs together:

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

2.Plug one end of the cable into the port labeled, “Out” on the first hub.

3.Plug the other end of the cable into the “In” port on the second hub.

4.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-portmodel 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 of8-,12-,and24-portmodels.

OUT

 

Stack

IN

 

Module

100-240VAC /50-6

up to

 

 

 

 

6 hubs

OUT

 

maximum

IN

 

 

Module

100-240VAC /50-6

 

OUT

 

 

IN

 

 

Stackable Module

100-240VAC /50-6

 

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-inmodules to support100BASE-FXFiber Optic cabling with either SC (Subscriber Connector) or ST (Straight Tip) connector types. Model KNE100FX/RSC supportsSC-typeconnectors. Model KNE100FX/RST supportsST-typeconnectors.

To upgrade your Fast EtheRx Stackable Fast Ethernet hub with either of the 100BASE-FXplug-inmodules, follow the directions below. The procedure requires a Philips head screwdriver.

1.Locate the faceplate labeled “100FX Fiber Module” on the rear panel of the hub.

2.Remove the four philips head screws to remove the faceplate.

3.Next, insert the plug-inmodule into the open slot. Press firmly to secure the module into the socket connector.

4.Re-installthe four screws to secure the faceplate to the hub.

5.The FX/ON LED will display a solid light if properly installed.

Figure 4 below illustrates the KNE100FX/RSC with SC-typeconnectors installed into the rear panel of your EtheRx hub. Figure 5 shows the KNE100FX/RST withST-typeconnectors installed.

RX TX

RX

TX

Fig. 4. Model KNE100FX/RSC

Fig. 5. Model KNE100FX/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-45Unshielded Twisted Pair (UTP) cabling. Connector pin numbers and pin wiring assignments are listed below in FigureA-1.Twisted-Paircables 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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

9

10

11

12

100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UTIL%

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Class II

Repeater

Stackable 100BASE-TX

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fast Ethernet Hub

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Link / Act / Partition

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FX

1

2

3

4

5

6

7

8

9

10

11

12

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PWR

COLL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

KNE24TX/RS

FX/ON

13

14

15

16

17

18

19

20

21

22

23

24

13

14

15

16

17

18

19

20

21

22

23

24

24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The UTP port labeled “24=” is a standard straight-throughUTP port.

 

 

 

 

 

 

 

All other UTP ports are configured as “MDI-X”,or internally crossed.

 

 

 

 

 

 

 

By default, all repeating and switched UTP ports are generally

 

1 2 3 4 5 6 7 8

 

 

 

 

 

 

 

 

configured as MDI-X,unless otherwise specified. See “Notes on MDI

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and MDI-X”for more details.

 

 

 

 

 

 

 

 

Modular

 

 

 

Connector

Fig. A-1RJ-45Connector Pin Numbers

 

 

 

 

 

 

 

 

Pin Number

 

 

MDI-X

 

 

MDI

 

 

 

 

 

 

 

 

 

 

 

1

 

 

Receive Data +

 

 

Transmit Data +

 

 

 

 

 

 

 

 

 

 

 

2

 

 

Receive Data -

 

 

Transmit Data -

 

 

 

 

 

 

 

 

 

 

 

3

 

 

Transmit Data +

 

 

Receive Data +

 

 

 

 

 

 

 

 

 

 

 

4,5

 

 

Not Used

 

 

Not Used

 

 

 

 

 

 

 

 

 

 

 

6

 

 

Transmit Data -

 

 

Receive Data -

 

 

 

 

 

 

 

 

 

 

 

7,8

 

 

Not Used

 

 

Not Used

 

 

 

 

 

 

 

 

 

 

Table A-1UTP 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-TXFast Ethernet architecture.

 

Ethernet Standard:

 

 

100BASE-TX

 

 

 

 

 

 

 

 

Trunk and Patch Cable

 

 

4-Pair100Ω UTP CAT 5

 

 

Type:

 

 

(only 2 pairs used)

 

 

Max. Cable Length:

 

 

100M (328ft)

 

 

Hub to Workstation

 

 

 

 

Hub to Hub

 

 

5M (16.4ft)

 

 

Modular Plug:

 

 

8-PinRJ-45CAT 5 only

 

 

 

 

 

 

 

 

Patch Panel:

 

 

8-PinRJ-45CAT 5 only

 

 

 

 

 

 

 

 

Network Topology:

 

 

Star

 

 

 

 

 

 

 

Table B-1.Network Cable Guidelines

UTP Cable Wiring

100BASE-TXunshieldedtwisted-paircables can be wired as "StraightThrough" or, in some cases,"Cross-Over"depending on the application. For workstations connected to a hub, use"Straight-Through'wiring illustrated below in TableB-2.In some instances (e.g. cascading from one hub to another), you may use"Cross-Over"wiring illustrated below in TableB-3.

"Straight-Through"Cable Wiring

Pin Number

Pin Number

1

(TRX +)

1

(TRX +)

2

(TRX -)

2

(TRX -)

 

 

 

 

3

(RCV +)

3

(RCV +)

6

(RCV -)

6

(RCV -)

 

 

4, 5, 7, 8

Not Used

Crossover”

Cable Wiring

Pin Number

Pin Number

1

(TRX +)

3

(RCV +)

2

(TRX -)

6

(RCV -)

 

 

 

 

3

(RCV +)

1

(TRX +)

6

(RCV -)

2

(TRX -)

 

 

4, 5, 7, 8

Not Used

Table B-2.Straight-ThroughWiring

Table B-3.Cross Over Wiring

 

 

Kingston Technology Company

KNE24TX/RS User’s Guide - Rev. A01