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Kingston Technology

EtheRx 10BASE-TWorkGroup and Stackable Ethernet Hubs User’s Guide

Models: KNE8TP/WG KNE8TP/SE KNE16TP/WG KNE16TP/SE

Kingston’s Technology’s

EtheRx 10BASE-TWorkGroup and Stackable

8-Portand16-PortEthernet Hubs

User’s Guide

Part No. 4460001-001.B00

Kingston Technology Company

17600 Newhope

Fountain Valley, CA 92708

(714) 435-2600

EtheRx User’s Guide - Rev. B00

Kingston Technology Company

i

TABLEOFCONTENTS

 

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

1

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

2

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

3

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

3

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

4

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

4

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

4

Fragment Extension ..........................................................

4

Collision Handling..............................................................

4

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

5

Link Test............................................................................

5

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

6

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

6

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

6

Stacking Ports (SE models only).........................

6

Utilization and Collision LEDs .............................

7

AUI LED..............................................................

7

BNC LED ............................................................

7

8 or 16 UTP Port LEDs .......................................

8

Cascade Switch ..................................................

8

EtheRx User’s Guide - Rev. B00

Kingston Technology Company

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Rear Panel

......................................................................

10

BNC ...........................................................Port

10

AUI ............................................................Port

10

8 or .............................................16 UTP Ports

10

3-Pin ........................................ACPower Jack

10

Network Configurations .................................................................

11

Ethernet 5-4 .........................................................-3Rule

11

Ethernet Star .....................................................Network

11

Linear Bus Network.........................................................

12

Horizontal Cascading ......................................................

12

Stacking EtheRx ...............................................SE Hubs

13

Appendices....................................................................................

 

14

Appendix A .......................................

Pin Assignments

15

UTP .......................................Pin Assignments

15

AUI .....Pin Assignments (16-Portmodels only)

16

Appendix B ....................................

Cabling Guidelines

17

Cable .......................................................Type

17

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

18

Appendix C ............................................

Specifications

19

Appendix D .................................

Mounting Templates

21

Appendix E ...............Product Warranties and Notices

22

How ....................................to Reach Kingston

25

Kingston Technology Company

EtheRx User’s Guide - Rev. B00

General Information

1

Introduction

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

Congratulations on the purchase of your Kingston EtheRx WorkGroup (WG) series andStackable-Enhanced (SE) series10BASE-TEthernet hubs. There are two models for each series: KNE8TP/WG and KNE16TP/WG, 8 and16-PortWorkGroup hubs, and KNE8TP/SE and KNE16TP/SE, 8 and16-PortStackable hubs. The SE hubs have the same list of features as the WorkGroup hubs, but also include stacking ports located on the front panel to stack up to five (5) SE hubs in the same network segment. The EtheRx WG and SE hubs aremulti-portrepeaters that conform to IEEE 802.3 10Mbit/sec CSMA/CD (Carrier Sense Multiple Access with Collision Detection) Network.

The EtheRx WG and SE hubs support eight (8) or sixteen (16) UTP (Unshielded Twisted-Pair)ports for10BASE-Tnetwork connections, and one BNC port for 10BASE2 thin Ethernet connection. The16-Portmodels also include one AUI (Attachment Unit Interface) port for either 10BASE2 Cheapernet, 10BASE5 thick Ethernet connection,10BASE-Tor FOIRL (Fiber Optic Inter Repeater Link) segment using a proper external transceiver. All models include: a cascade switch on the last UTP port (Port 8 or Port 16) which supports bothstraight-throughor crossover cable types by simply moving the switch on the front panel. The UTP ports use2-colorLEDs to showthree states of operation: link, activity and partition. The AUI and BNC ports use2-colorLEDs to showtwo states of operation: activity and partition. The EtheRx hubs also include utilization and collision LEDs to visually monitor the level of network traffic and number of collisions in five LED percentage levels.

For the remainder of this manual, these hubs will be referred to collectively as the EtheRx hubs. When necessary for clarification, the four models will be differentiated as follows:

KNE8TP/WG

8-PortWorkGroup hub

KNE16TP/WG

16-PortWorkGroup hub

KNE8TP/SE

8-PortStackable hub

KNE16TP/SE

16-PortStackable hub

 

 

EtheRx User’s Guide - Rev. B00

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General Information

Model Types

8-PortHub Models

Workgroup Hub

UTIL %

LINK / ACTIVITY / PARTITION

 

 

 

KNE8TP/WG

COLL %

BNC 1 2 3 4 5 6 7 8

CASCADE

 

PWR

KNE8TP/WG 8-PortWorkGroup Hub

STACK IN STACK OUT

 

 

 

 

 

 

 

 

 

Stackable Hub

UTIL %

 

 

LINK / ACTIVITY / PARTITION

 

KNE8TP/SE

 

 

 

 

COLL %

BNC

1

2

3

4

5

6

7

8

CASCADE

 

PWR

KNE8TP/SE 8-PortStackable Hub

16-PortHub Models

Workgroup Hub

UTIL %

ACTIVITY / PARTITION

LINK / ACTIVITY / PARTITION

 

 

 

 

 

 

 

KNE16TP/WG

COLL %

AUI BNC

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

CASCADE

PWR

KNE16TP/WG 16-PortWorkGroup Hub

STACK IN STACK OUT

UTIL %

ACTIVITY / PARTITION

 

 

 

 

 

LINK / ACTIVITY / PARTITION

 

 

 

 

 

 

COLL %

AUI

BNC

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

CASCADE

Stackable Hub

PWR KNE16TP/SE

KNE16TP/SE 16-PortStackable Hub

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EtheRx User’s Guide - Rev. B00

General Information

3

Special Features

8 or 16 UTP ports for 10BASE-Tconnection

1 BNC port for 10BASE2 thin Ethernet connection

1 AUI port for backbone or mixed media (16-Port models only)

UTP Link, Activity, and Partition Status LEDs

BNC Activity and Partition Status LED

AUI Activity and Partition Status LED (16-Port models only)

Utilization and Collision LEDs displays network traffic and number of collisions in five LED percentage levels

Cascade Switch on last UTP port (Port 8 or 16) to support crossover or straight-throughcable wiring types

Automatic partition and reconnection

Full preamble, amplitude, and timing regeneration

Conforms to IEEE 802.3 Basic Repeater Functions and 802.3i Twisted-PairTransceiver Functions

Apple MacOS compatible

External AC Power Transformer included

Stacking Ports (SE hubs only) stacks up to 5 hubs on same network segment for greater UTP port expansion

Package Contents

EtheRx WG and SE hubs should contain the following items:

οOne EtheRx 10BASE-TEthernet hub

οExternal AC Power Transformer (120VAC or 230VAC)

οBNC T-Connector

ο(4) Rubber Feet

ο5.5” Stacking Cable (SE hubs only)

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.

EtheRx User’s Guide - Rev. B00

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4

Design Features

Design Features

The EtheRx hub complies with the full set of repeater basic functions as defined by IEEE 802.3, Section 9. These functions include all Repeater Functions, Signal Regeneration, Jabber Lockup Protection, Fragment Extension, Collision Handling, Auto Partitioning/Reconnection, and Link Test. 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 EtheRx hub will re-transmitthe received data to all other ports on the network. There-transmissionof packets complies with the IEEE 802.3 specification in terms of preamble structure, voltage amplitude, and timing characteristics. These timing regenerations prevent cumulative signal loss, jitter, and distortion caused by the network cabling, and allow the EtheRx hubs to be cascaded to other Ethernet hubs.

Jabber Lock-upProtection

The EtheRx hub implements a built-inMAU jabber lockup protection (MJLP) scheme to ensure that the network is not disabled due to transmission of excessively long data packets. This protection scheme will automatically interrupt excessively long transmissions to prevent jabberlock-up.

Fragment Extension

If the total packet length received by the EtheRx hub is less than 96 bits, including preamble, then the hub will automatically extend the repeated packet length to 96 bits by appending a jam sequence to the original fragment. The extension of a fragmented packet allows the reliable detection of a collision by all stations attached to the network.

Collision Handling

The EtheRx hub will detect and respond to collision conditions as outlined in the IEEE 802.3 specifications.

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EtheRx User’s Guide - Rev. B00

Design Features

5

Automatic Partitioning/Reconnection

If any of the ports on the EtheRx hub experience excessive 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 received without a collision, the hub will automatically reconnect that port to the network.

Link Test

For UTP port connections, the EtheRx hub implements the link integrity test function as specified in the IEEE 802.3 10BASE-Tstandard. The hub will transmit link test pulses to any UTP port after that port’s transmitter is inactive for a range of 8ms to 17ms. These pulses are sent to confirm that a valid connection exists between each UTP port on the hub and its attached device.

EtheRx User’s Guide - Rev. B00

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Hardware Installation

Hardware Installation

Before you begin installing network cables, please take a few moments to familiarize yourself with the EtheRx hubs. The front and rear panels of the Stackable hubs are used for illustration.

Note: WorkGroup hubs have identical features except for the Stacking Ports.

Front Panel

 

Utilization LEDs

 

UTP Port LEDs

 

 

 

STACK IN STACK OUT

 

 

 

 

 

 

 

 

Stackable Hub

 

UTIL %

 

LINK / ACTIVITY / PARTITION

 

 

KNE8TP/SE

 

 

 

 

 

 

COLL %

BNC 1

2

3

4

5

6

7

8

CASCADE

PWR

 

 

 

Stacking

BNC Port LED

 

 

Cascade

Power LED

 

 

 

 

 

 

 

 

Switch

Ports

Collision LEDs

 

 

 

 

 

 

 

 

 

Fig. 1-1KNE8TP/SE Front Panel

Utilization LEDs

 

 

UTP Port LEDs

 

STACK IN STACK OUT

UTIL %

ACTIVITY / PARTITION

LINK / ACTIVITY / PARTITION

Stackable Hub

COLL % AUI BNC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CASCADE PWRKNE16TP/SE

Stacking Collision LEDs

BNC Port LED

Cascade

Power LED

Ports

AUI Port LED

Switch

 

Fig. 1-2KNE16TP/SE Front Panel

Power LED

The green LED indicates the power status. The LED will light when the AC power transformer is connected from a power source to the hub.

Stacking Ports (SE models only)

The Stackable hub models (KNE8TP/SE and KNE16TP/SE) include a “Stack-In” and“Stack-Out” port for stacking up to five (5) SE hubs in any combination of8-Portand16-Portmodels. Refer to the section,“Stacking EtheRx SE Hubs” on page 13 for additional information.

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EtheRx User’s Guide - Rev. B00

Hardware Installation

7

Utilization and Collision LEDs

There are five Utilization and five Collision LEDs to display the network traffic and number of collisions on the network. The utilization LEDs measure the amount of data traffic in frames per second (FPS). The LEDs will light in relation to the amount of traffic. The collision LEDs measure the collisions per second (CPS). The LEDs will light in relation to the amount of collisions.

 

FPS/CPS

 

 

% Activity

 

 

LED 1

 

 

LED 2

 

 

LED 3

 

 

LED 4

 

 

LED 5

 

 

1-49

 

1%

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50-99

 

7%

 

 

ON

 

 

ON

 

 

 

 

 

 

 

 

 

 

 

100-199

 

15%

 

 

ON

 

 

ON

 

 

ON

 

 

 

 

 

 

 

 

200-399

 

30%

 

 

ON

 

 

ON

 

 

ON

 

 

ON

 

 

 

 

 

400 +

 

 

60%

 

 

ON

 

 

ON

 

 

ON

 

 

ON

 

 

ON

 

Table 1-3Utilization and Collision Percentage LEDs

AUI LED

For 16-Port models only. Thetwo-colorLED displays two states of operation for the Activity and Partition status on the AUI port. When data is received, the LED will flash green. If the port has been partitioned due to excessive collision or other faulty condition, it will display solid red.

Note: Upon power up, the AUI port LED will not be lit unless a transceiver is attached to the port and there is activity.

BNC LED

The two-colorLED displays the Activity and Partition status on the BNC port. When data is received, the LED will flash green. If the port is partitioned due to excessive collision or other faulty condition, it will display solid red.

Note: Upon power up, if the BNC port has no cable attached or is not properly terminated at both ends, the LED will display red to show the port has been partitioned. Upon receipt of good packets, the LED will automatically change from red to green indicating that the port is functioning properly.

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Hardware Installation

8 or 16 UTP Port LEDs

The LINK/ACTIVITY/PARTITION LEDs use two colors to display three states of operation for the 8 or 16 UTP ports. 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. A flash may be longer or shorter depending on the length of the data packet being received. If the port is partitioned, it will display solid red.

If the LED does not display solid green indicating a good link, check the following:

1.Make sure the power is turned on for both the PC and EtheRx hub. The power LED should be lit.

2.Verify the network adapter has loaded its drivers from 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.

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

5.If steps 1, 2, 3, and 4 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.

Cascade Switch

The Cascade Switch provides cable wiring flexibility on the last UTP Port (i.e., Port 8 or Port 16) for connecting to a workstation or cascading to another hub. By default, the last UTP port is set to “Crossover” (left side) as a standard, internally-crossedport, orMDI-Xport. Depending on the wiring of your UTP cable (normally“Straight-Through”),the port is used to connect a workstation. For cascading to another hub using astraight-throughcable, move the Cable Switch to“Straight-Through”(right side). If a crossover UTP cable is used to cascade to another hub, leave the Cable Switch in the “Crossover” position. See Figure1-3for a diagram showing the16-PortKNE16TP/WG model. To verify the pin wiring of your UTP cable, refer to“Appendix B Cabling Guidelines” on page 17.

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EtheRx User’s Guide - Rev. B00

Hardware Installation

9

Using a Straight-ThroughCable

Using a Crossover Cable

Fig. 1-4Cable Switch functions

Notes on MDI and MDI-XPorts

MDI (Media Dependent Interface) is the IEEE 10BASE-Tstandard for the interface to the UTP cable. For two10BASE-Tdevices to communicate with each other, 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 oneMDI-Xport that implements thecross-overinternally.

Port 1 through Port 7 (or 15), like all normal hub ports, are configured MDI-X.All NICs (Network Interface Cards) and Router ports are usually by default configured MDI. A simple illustration shows the relationship of cable types to port types:

Switch

Port

For Connection to

For Connection to a

Position

Config

another Hub Port (MDI-X)

Network Adapter (MDI)

 

 

 

 

 

 

 

 

 

MDI-X

Use Crossover cable

Use Straight-throughcable

 

 

 

 

 

 

 

 

 

MDI

Use Straight-throughcable

Use Crossover cable

 

 

 

 

 

 

 

 

 

 

 

 

Table 1-5Cable Switch functions

EtheRx User’s Guide - Rev. B00

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Hardware Installation

Rear Panel

BNC

8

7

6

5

4

3

2

1

POWER

Fig. 2-1KNE8TP/SE Rear Panel

BNC

AUI

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

POWER

 

 

 

Fig. 2-2KNE16TP/SE Rear Panel

 

 

 

 

 

 

BNC Port

This port is labeled BNC, and has a built-intransceiver for direct 10BASE2 connection via thin coaxial cable. UseRG-58A/U orRG-58C/U type cable. Refer to Appendix B for 10BASE2 cabling guidelines when connecting to this port.

AUI Port

On 16-Port Models only. The AUI port is a15-pinD-subconnector. It is a general purpose port for backbone or mixed media connections for 10BASE2, 10BASE5,10BASE-T,or FOIRL connections using a proper external transceiver.

8 or 16 UTP Ports

The UTP ports are numbered 1 through 8 or 1 through 16 for 10BASE-Tconnections. Since crossover function is implemented on all UTPMDI-Xports, astraight-throughUTP cable should be used.Note: Port 8 and Port 16 support both cable types using the Cable Switch. Refer to Appendix B for details onRJ-45pin assignments and cable specifications.

3-PinAC Power Jack

The EtheRx hub gets its power from the accompanying AC power transformer. Insert the 3-pinpower cable connector into the AC power jack at far right. For safety purposes, please use ONLY the included AC power transformer for proper operation. The wrong type power transformer may cause damage to both the hub and the power transformer.

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EtheRx User’s Guide - Rev. B00

Network Configurations

11

Network Configurations

The installation of the EtheRx hub is simple and can be configured for either the Ethernet Star topology, Linear Bus topology, or vertically stacked (SE models only), or horizontally cascaded to other Ethernet hubs. For cascading, please observe the Ethernet 5-4-3Rule.

Ethernet 5-4-3Rule

The Ethernet 5-4-3rule states that the maximum transmission path permitted between any two stations is:

5 segments

4 repeater sets

3 coax segments. The remaining 2 segments may be linked segments

Ethernet Star Network

The typical network configuration for 10BASE-TEthernet is a Star Topology, in which nodes are connected to a central Ethernet hub. Since a Crossover function is implemented on all ports (except the last UTP port which uses a Cable Switch to support both cable types), aStraight-ThroughUTP cable should be used. The physical network connection is illustrated in Figure3-1.

BNC

AUI

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

POWER

Fig. 3-1Star Network Connection

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Network Configurations

Linear Bus Network

The typical network configuration for 10BASE2 networks is a Linear Bus topology in which nodes are connected to the BNC connector via a thin coaxial cable. This configuration allows 10BASE2 nodes to communicate with a 10BASE-Tsegment. A BNC 50(Ohm) terminator must be attached to each end of the trunk segment. One of the terminators must be grounded. The purpose of the terminators is to terminate the network and block electrical interference.

Grounded Terminator on last Node

Thin Ethernet Coax Cable

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Terminator

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Up

to 30 Nodes

BNC

AUI

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

POWER

Fig. 3-2Linear Bus Connection

Horizontal Cascading

The EtheRx hubs can be horizontally cascaded to other hubs as long as the Ethernet 5-4-3Rule is met (Refer to page 11). This connection can be made through the BNC port, AUI port(16-Portmodels only), or one of the UTP ports. To cascade to another hub, use the last UTP port which has a cascade switch to support either straight through or crossover cable types. Figure3-3below is an example of horizontal cascading using the KNE16TP/WG under the Ethernet5-4-3rule.

Fig. 3-3Horizontal Cascading

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EtheRx User’s Guide - Rev. B00

Network Configurations

13

Stacking EtheRx SE Hubs

The EtheRx SE hubs use stacking ports located on the front panel to stack up to five SE hubs in any combination of 8-PortKNE8TP/SE and the16-PortKNE16TP/SE models. Follow the directions below to stack up to five SE hubs together:

1.Locate the 5.5” shielded twisted-paircable included with your package contents.

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

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

4.Connect power to each hub using the external AC power transformer included with your package contents.

5.Repeat the process to stack additional hubs up to a maximum of five

(5) hubs.

Figure 3-4below illustrates the stacking cable connections for five8-PortKNE8TP/SE hubs expanding the total number of UTP port connections from 8 to 40 UTP ports and still be recognized as one Ethernet repeater on the network. A maximum of five (5) SE hubs can be stacked in any combination of 8 and16-PortSE hub models.

Stack up to Five

SE Hubs

STACK IN

STACK OUT

 

 

 

 

 

 

 

 

 

Stackable Hub

 

UTIL %

 

 

LINK / ACTIVITY / PARTITION

 

KNE8TP/SE

 

 

 

 

 

 

COLL %

BNC

1

2

3

4

5

6

7

8

CASCADE

 

 

PWR

STACK IN

STACK OUT

 

 

 

 

 

 

 

 

 

Stackable Hub

 

UTIL %

 

 

LINK / ACTIVITY / PARTITION

 

KNE8TP/SE

 

 

 

 

 

 

COLL %

BNC

1

2

3

4

5

6

7

8

CASCADE

 

 

PWR

STACK IN

STACK OUT

 

 

 

 

 

 

 

 

 

Stackable Hub

 

UTIL %

 

 

LINK / ACTIVITY / PARTITION

 

KNE8TP/SE

 

 

 

 

 

 

COLL %

BNC

1

2

3

4

5

6

7

8

CASCADE

 

 

PWR

STACK IN

STACK OUT

 

 

 

 

 

 

 

 

 

Stackable Hub

 

UTIL %

 

 

LINK / ACTIVITY / PARTITION

 

KNE8TP/SE

 

 

 

 

 

 

COLL %

BNC

1

2

3

4

5

6

7

8

CASCADE

 

 

PWR

STACK IN

STACK OUT

 

 

 

 

 

 

 

 

 

Stackable Hub

 

UTIL %

 

 

LINK / ACTIVITY / PARTITION

 

KNE8TP/SE

 

 

 

 

 

 

COLL %

BNC

1

2

3

4

5

6

7

8

CASCADE

 

 

PWR

Fig. 3-4Stackable SE Hub Configuration

EtheRx User’s Guide - Rev. B00

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Appendices

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EtheRx User’s Guide - Rev. B00