KTI Networks DH-8T Manual de usuario

Installation Guide

10Base-T Ethernet Hub

Model: DH8T

DOC.980213-DH8T-K

P/N: 750-0104-001

KTINetworksInc.Allrightsreserved.Nopartofthisdocumentationmaybe

reproduced in any form or by any means or used to make any directive work

(such as translation or transformation) without permission from KTI Net-

works Inc.

KTI Networks Inc. reserves the right to revise this documentation and to

make changes in content from time to time without obligation on the part of

KTI Networks Inc. to provide notification of such revision or change.

For more information, contact:

UnitedStates

KTINetworksInc.

P.O.BOX631008

Houston,Texas77263-1008

Phone: 713-2663891 Fax: 713-2663893

BBS: 713-2663015 E-mail: [email protected]

Web: http://www.ktinet.com/

International

Fax: 886-2-26983873

E-mail: [email protected]

Web: http://www.ktinet.com.tw/

The information contained in this document is subject to change without prior no-

tice.

TRADEMARKS

Ethernet is a registered trademark of Xerox Corp. NetWare is a registered trademark

of Novell Inc.

WARNING:

This equipment has been tested and found to comply with the limits for a Class A

digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to

provide reasonable protection against harmful interference when the equipment is

operated in a commercial environment. This equipment generates, uses, and can

radiate radio frequency energy and if not installed and used in accordance with the

instruction manual may cause harmful interference in which case the user will be

required to correct the interference at his own expense.

NOTICE:

(1)The changes or modifications not expressively approved by the party

responsible for compliance could void the user’s authority to operate the

equipment.

(2)Shielded interface cables and AC power cord, if any, must be used in order to

comply with the emission limits.

CISPRACOMPLIANCE:

This device complies with EMC directive of the European Community and meets or

exceeds the following technical standard.

EN 55022 - Limits and Methods of Measurement of Radio Interference Characteris-

tics of Information Technology Equipment. This device complies with CISPR Class

WARNING: This is a Class A product. In a domestic environment this product may

cause radio interference in which case the user may be required to take adequate

measures.

CE NOTICE

Marking by the symbol CE indicates compliance of this equipment to the EMC

directive of the European Community. Such marking is indicative that this equip-

ment meets or exceeds the following technical standards:

EN 55022: Limits and Methods of Measurement of Radio Interference characteris-

tics of Information Technology Equipment.

EN 50082/1:Generic Immunity Standard -Part 1: Domestic Commercial and Light Indus-

try.

EN 60555-2: Disturbances in supply systems caused by household appliances and similar

electrical equipment - Part 2: Harmonics.

10BASE-T ETHERNET HUB

INSTALLATIONGUIDE

DOC.980214-DH8T-NK

P/N:750-0104-002

Table of Contents

Chapter 1 Introduction

Introduction ............................................................................... 1

Features.................................................................................... 2

Chapter 2 Installation

Installation................................................................................. 3

CheckingACPower .................................................................. 3

Chapter 3 Making Network Connection

NetworkConnectors.................................................................. 4

Connectingtoan Ethernet Node ............................................... 5

HubtoHubConnectionviaUTPCable ...................................... 6

Chapter 4 Interpreting Hub LEDs

Locationsof theHub LEDIndicators ......................................... 8

Interpretation ............................................................................. 8

Appendix

Specifications.......................................................................... 10

RJ-45Jack PinAssignments .................................................. 10

UTP CablingSpecifications ......................................................11

1. Introduction

Introduction

ThishubisanEthernetHubdesignedforthe10Base-Tenvironment.

In terms of topology, twisted-pair Ethernet 10Base-T is defined as a

startopologyrather than a bus. Each port on the hub connectsto only

one 10Base-T device via unshielded twisted-pair (UTP) cable.

The hub provides eight Twisted-Pair (TP) ports (RJ-45 Jacks) and

one 12V DC power socket on the rear panel. On the front panel,

there are ten LED indicators for displaying the port status and the

hub status. The following figure illustrates the front panel and rear

panelof the hub:

Features

• Networkports: 8 TP ports

• Standard: TP ports conform to IEEE 802.3 10Base-T std.

• Provides an additional RJ-45 jack labeled '8C' on the TP Port #8

for connecting to another hub. A standard straight-through

10Base-T UTP cable can be used for the hub-to-hub connection.

• Each TP port has one Link/Rx LED to indicate the link and

receiving activity status of the UTP link segment.

• Each TP port can detect and correct wiring polarity reversal

automatically.

• Two LEDs are provided to indicate other activities of the hub:

Power LED Power status

CollisionLED Networkcollisionstatus

2. Installation

Installation

You can place the hub in an area that meets the following specifica-

tions:

Temperature: 5oto 40oC when operating

Humidity: 10% to 80% when operating

Dimension: 195 mm x 129 mm x 28 mm (WxDxH)

Checking AC Power

One AC power adapter is contained in the hub package. Before you

begin the installation, check the AC voltage of your area. The AC

power adapter which is used to supply the DC power for the hub

shouldhave the AC voltage matching the commercialpower voltage

at your area.

The specifications of the AC power adapter are:

ACinputpower:AC power voltage of your area

DCoutput power: 12 VDC 500mA min.

DCplug type:

3. Making Network Connections

Network Connectors

The hub has 8 TP ports which are presented by 8 RJ-45 jacks. The

jacks labeled 1 through 8 are permanently configured as 10Base-T

MDI-X jacks and the jack labeled '8C' next the jack labeled '8' is an

alternative jack which is configured as MDI jack for the TP port #8.

Both jacks can not be used at the same time.

The MDI-X jacks can support connections to 10Base-T Ethernet

nodes or lower level hubs via 10Base-T UTP cables. The MDI jack

'8C' is used for connecting to an upper level hub.

A 10Base-T UTP cable can be a Category 3, 4, or 5 unshielded

twisted-pair cable with an RJ45 plug at each end.

Connecting to an Ethernet Node

To connect the hub to a 10Base-T Ethernet node, follow these steps:

1. Select an appropriate length of 10Base-T UTP cable for the

connection.

2. Connect one end of the UTP cable to the MDI jack on the

remote device (e.g., a PC equipped with 10Base-T Ethernet

adapter).

3. Connect the other end of the UTP cable to an available MDI-X

jack on the hub. It is better to reserve jack #8 for a connection to

anotherhub.

Make sure that the connector on the cable is wired appropriately for

thestandard 10Base-T node. The 'straightthrough'connectionshould

be made from the node through the cable and connectors to the hub.

Refer to Appendix 'RJ-45 Jack Pin Assignments' for the information

of UTP wire pairs.

Hub to Hub Connection via UTP Cable

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