Kingston Technology KNE16SE Switch user guide

16-Port Hub Models

ACTIVITY / PARTITION

LINK / ACTIVITY / PARTITION

Workgroup Hub

KNE16TP/WG

KNE16TP/WG 16-Port WorkGroup Hub

STACK IN STACK OUT

ACTIVITY / PARTITION

LINK / ACTIVITY / PARTITION

Stackable Hub

KNE16TP/SE

KNE16TP/SE 16-Port Stackable Hub

Kingston Technology Company

EtheRx Users Guide - Rev. B00

General Information

Special Features

8 or 16 UTP ports for 10BASE-T connection

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-through cable wiring types

Automatic partition and reconnection

Full preamble, amplitude, and timing regeneration

Conforms to IEEE 802.3 Basic Repeater Functions and 802.3i

Twisted-Pair Transceiver Functions

Apple Mac OS 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:

One EtheRx 10BASE-T Ethernet hub

External AC Power Transformer (120VAC or 230VAC)

BNC T-Connector

(4) Rubber Feet

5.5 Stacking Cable (SE hubs only)

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 your unit, its not a genuine Kingston product.

EtheRx Users Guide - Rev. B00

Kingston Technology Company

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-transmit the received data to all other ports on the network.

The re-transmission of 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-up Protection

The EtheRx hub implements a built-in MAU 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 jabber lock-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.

Kingston Technology Company

EtheRx Users Guide - Rev. B00

Design Features

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.

For UTP port connections, the EtheRx hub implements the link integrity test function as specified in the IEEE 802.3 10BASE-T standard. The hub will transmit link test pulses to any UTP port after that ports 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 Users Guide - Rev. B00

Kingston Technology Company

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

UTP Port LEDs

Utilization LEDs

Stackable Hub

STACK IN STACK OUT

LINK / ACTIVITY / PARTITION

BNC Port LED

Collision LEDs

Fig. 1-1 KNE8TP/SE Front Panel

UTP Port LEDs

Utilization LEDs

STACK IN STACK OUT

ACTIVITY / PARTITION

LINK / ACTIVITY / PARTITION

Stackable Hub

Collision LEDs

BNC Port LED

AUI Port LED

KNE16TP/SE

Fig. 1-2 KNE16TP/SE Front Panel

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 of 8-Port and 16-Port models. Refer to the section, Stacking

EtheRx SE Hubs on page 13 for additional information.

Kingston Technology Company

EtheRx Users Guide - Rev. B00

Hardware Installation

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