Kingston Technology EtheRx KNE8TX/WG User manual

KINGSTON TECHNOLOGY
EtheRx 4-PORT AND 8-PORT WORKGROUP
100BASE-TX FAST ETHERNET HUBS
USER’S GUIDE
MODELS: KNE4TX/WG
KNE8TX/WG

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KNExTX/WG User’s Guide - Rev. A00 Kingston Technology Company
Kingston Technology’s
EtheRx Workgroup
4-Port and 8-Port
100BASE-TX
Fast Ethernet Hubs
User’s Guide
Part No. 4460057-001.A00
Kingston Technology Company
17600 Newhope
Fountain Valley, CA 92708
[phone]

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Kingston Technology Company KNExTX/WG User’s Guide - Rev. A00
TABLE OF CONTENTS
Introduction...................................................................................... 1
Model Types...................................................................... 1
Special Features ............................................................... 2
Package Contents............................................................. 2
Design Features .............................................................................. 3
Repeater Functions........................................................... 3
Receive Jabber Protection ................................................ 3
Collision-Handling ............................................................. 3
Error-Handling................................................................... 3
Automatic Port Partitioning/Reconnection ......................... 3
Hardware Installation.......................................................................4
Front Panel........................................................................ 4
Power LED.......................................................... 4
Utilization LEDs................................................... 5
Collision LED ...................................................... 5
4 or 8 UTP Port LEDs ......................................... 5
Cascade Switch .................................................. 6
Rear Panel ........................................................................ 8
4 or 8 UTP Ports ................................................. 8
DC Power Connector .......................................... 8
Appendices...................................................................................... 9
Appendix A Pin Assignments ....................................... 10
UTP Pin Assignments ....................................... 10

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KNExTX/WG User’s Guide - Rev. A00 Kingston Technology Company
Appendix B Cabling Guidelines ....................................11
UTP Cable Wiring .............................................11
Cable Wiring Standards ....................................11
Rating Codes ....................................................13
Appendix C Specifications............................................ 14
Appendix D Commonly Asked Questions.....................16
Appendix E Mounting Templates.................................. 17
Appendix F Warranties and Notices .............................19
Limited Warranty Statement..............................19
Duration of Warranty.........................................19
Free Technical Support.....................................20
Disclaimers .......................................................20
F.C.C. Certification............................................21
CE Notice..........................................................21

Introduction 1
KNExTX/WG User’s Guide - Rev. A00 Kingston Technology Company
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 100BASE-TX Fast Ethernet hubs. There are two models available in this
series: KNE4TX/WG, which is the 4-Port model, and KNE8TX/WG, which is
the 8-Port model. The EtheRx Workgroup series hubs are Class II repeaters
that conform to IEEE 802.3u 100BASE-TX standards. Please refer to
Appendix D for further information on Class II repeaters.
The EtheRx Workgroup hubs support up to four (4) or eight (8) UTP
(Unshielded Twisted-Pair) ports for 100BASE-TX network connections. Both
models include a cascade switch on the last UTP port (Port 4 or Port 8) which
supports both straight-through and crossover cable types. The UTP ports use
dual-color LEDs to show three states of operation: link, activity and
partition/error. The EtheRx hubs also include a collision LED for collision
detection and five (5) utilization LEDs to display the level of network traffic in
percentages of the total available bandwidth.
For the remainder of this manual, the KNE4TX/WG (4-port model) and the
KNE8TX/WG (8-port model) hubs will be referred to as the EtheRx hubs.
•KNE4TX/WG 4-Port 100BASE-TX Hub
•KNE8TX/WG 8-Port 100BASE-TX Hub
Model Types
Fig. 1-1 – KNE4TX/WG & KNE8TX/WG
LINK / ACTIVITY / PARTITION
12345678
EtheRx Workgroup
COLL
I00BASE-TX Class Repeater
CASCADE
PWR
KNE8TX/WG
UTIL %
1605025 12
LINK / ACTIVITY / PARTITION
EtheRx Workgroup
COLL
I00BASE-TX Class Repeater
CASCADE
PWR
KNE4TX/WG
UTIL %
1605025 12
1234

2 Introduction
Kingston Technology Company KNExTX/WG User’s Guide - Rev. A00
Special Features
• 100BASE-TX Class II compliant repeater
• Conforms to IEEE802.3u 100BASE-TX standard
• 4 or 8 UTP ports for 100BASE-TX connections
• 4 or 8 Link, Activity, and Partition/Error status LEDs for easy
troubleshooting
• Utilization LEDs for displaying network traffic rates in percentages
• Power LED and Collision LED for collision detection
• Automatic Port Partitioning/Reconnection
• Uplink port that supports both crossover and straight-through cable wiring
• External auto-sensing power supply operating at 100-240VAC (50/60Hz)
• Desktop and Wall-mountable
Package Contents
EtheRx Workgroup hubs should contain the following items:
 EtheRx KNE4TX/WG or KNE8TX/WG Fast Ethernet hub
 (4) Rubber Feet
 External DC power supply
 Power cord
 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 the unit, it’s not a genuine Kingston product.

Design Features 3
KNExTX/WG User’s Guide - Rev. A00 Kingston Technology Company
Design Features
The EtheRx hub complies with the full set of repeater basic functions as
defined by IEEE 802.3u. These functions include all Repeater Functions,
Signal Regeneration, Receive Jabber Protection, Collision-Handling, Error-
Handling, and Auto Partitioning/Reconnection.
Repeater Functions
If any single port senses the start of a valid packet on its receiving line, the
EtheRx hub will re-transmit the received data to all other ports on the network.
The re-transmission of packets complies with the IEEE 802.3u specification in
terms of preamble structure, voltage amplitude, and timing characteristics.
These timing regenerations prevent cumulative signal loss, jitters, and
distortion caused by network cabling, thus allowing the EtheRx hubs to be
cascaded to other 100BASE-TX Class II repeaters.
Receive Jabber Protection
The EtheRx hub provides a Receive Jabber Protection scheme to ensure that
the network is not disabled due to reception of excessively long data packets.
This protection scheme will automatically interrupt the receiver if the EtheRx
hub has been continuously receiving for more than 65,536-bit times.
Collision-Handling
The EtheRx hub will detect and respond to collision conditions as outlined in
the IEEE 802.3u specifications.
Error-Handling
The 100BASE-TX standard uses an improved method of error-handling called
block coding. With 100BASE-TX Fast Ethernet, the new error-handling
feature prevents substandard links from generating streams of false carrier and
interfering with other links.
Automatic Port Partitioning/Reconnection
If any of the ports on the EtheRx hub 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 without a collision, the hub will automatically
reconnect that port to the network.

4 Front Panel
Kingston Technology Company KNExTX/WG User’s Guide - Rev. A00
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
Fast Ethernet Workgroup hubs are illustrated below.
Front Panel
Fig. 1-2 KNE4TX/WG Front Panel
Fig. 1-3 KNE8TX/WG Front Panel
Power LED
The green LED indicates the power status. The LED will light up when the unit
is properly connected to the accompanying DC power supply. For further
details, please refer to Figure 1-8 on page 8.
LINK / ACTIVITY / PARTITION
EtheRx Workgroup
COLL
I00BASE-TX Class Repeater
CASCADE
PWR
KNE4TX/WG
UTIL %
1605025 12
1234
Utilization LEDs UTP Port LEDs
Power LED Collision LED Cascade Switch
LINK / ACTIVITY / PARTITION
12345678
EtheRx Workgroup
COLL
I00BASE-TX Class Repeater
CASCADE
PWR
KNE8TX/WG
UTIL %
1605025 12
Utilization LEDs
Power LED Collision LED
UTP Port LEDs
Cascade Switch