Accton Technology CheetaHub Power-3008P Manual de usuario

CheetaHub Power-3008P/3016P

Quick Installation Guide

CheetaHub Power-3008P/16P

Fast Ethernet Dual-Speed Hubs

with 8/16 10/100Mbps (RJ-45) Ports,

and Internal Switch

CheetaHub Power-3008P

CheetaHub Power-3016P

No part of this document may be copied or reproduced in any form or by any means without the prior

written consent of Accton Technology Corporation.

Accton makes no warranties with respect to this documentation and disclaims any implied warranties

of merchantability, quality, or fitness for any particular purpose. The information in this document is

subject to change without notice. Accton reserves the right to make revisions to this publication

without obligation to notify any person or entity of any such changes.

International Headquarters USA Headquarters

No. 1 Creation Road III, P.O. Box 51420

Science-based Industrial Park Irvine, CA 92619-1420

Hsinchu 300, Taiwan, R.O.C. Phone Numbers -

Phone: 886-3-5770-270 Sales: 888-398-2101 or 949-707-4800

FAX: 886-3-5770-267 Support: 888-398-4101 or 949-707-4847

Internet: [email protected] RMA: 888-398-3101 or 949-707-4828

FAX: 949-707-2460

Accton is a trademark of Accton Technology Corporation. Other trademarks or brand names

mentioned herein are trademarks or registered trademarks of their respective companies.

EH3008P

EH3016P

E0999-R02

150052-102

Contents

Introduction 1

Installing the Hub 1

Package Contents 1

Description of Hardware 1

Mounting the Hub 2

Stacking Hubs on a Flat Surface 2

Mounting Hubs in a Rack 3

Connecting the Hub System 3

Making a Connection via an RJ-45 Station Port 3

Making a Connection via an MDI Daisy-Chain Port 4

Powering On the Hub 5

Verifying Port Status 5

Verifying System Operation 6

Applications 6

Product Specifications 7

Repeater Criteria 7

Internal Switching Criteria 8

Troubleshooting 8

Diagnosing Hub Indicators 8

Power and Cooling Problems 9

Cabling and Adapters 9

Installation 9

Port and Cable Assignments 9

RJ-45 Port Description 9

EMI Certification 10

FCC Class A (USA) 10

Class A (Canada Department of Communications) 10

VCCI Class A Compliance (Japan) 11

BCIQ Class A Compliance (Taiwan) 11

CE Mark Declaration of Conformance (for EMI and Safety - Europe) 11

Safety Compliance 11

Underwriters Laboratories Inc. (USA) 11

Wichtige Sicherheitshinweise (Germany) 12

Warranty 13

Quick Installation Guide

Introduction

The CheetaHub Power-3008P/16P provides 8 (16) RJ-45

ports that automatically adjust to the speed of the

attached device (for 10Mbps Ethernet or 100Mbps Fast

Ethernet connections). These dual-speed hubs contain

two internal repeater buses – one for 10Mbps traffic and

another for 100Mbps traffic. Traffic passing between

attached devices that operate at the same speed is confined

within the appropriate repeater bus. But when traffic must pass

between 10 and 100Mbps devices, when the destination address is not found in

the address table, or broadcast traffic is sent, data is forwarded to the other

repeater bus via an internal 10/100Mbps switch.

These hubs provide an ideal bridge between 10 and 100Mbps Ethernet networks.

Moreover, the smart design built into the display panel provides a friendly

interface that simplifies installation and network troubleshooting.

Installing the Hub

Before installing the hub, please verify that you have all the items listed under

“Package Contents.” If any of the items are missing or damaged, contact your

local Accton distributor. Also be sure you have all the necessary tools and

cabling before installing the hub. Note that this hub can be installed on any

suitably large flat surface or in a standard EIA 19-inch rack.

Package Contents

The CheetaHub Power-3008P/16P includes:

• CheetaHub Power-3008P (Model No. EH3008P)

Fast Ethernet dual-speed hub with 8 10/100Mbps ports, and internal switch

or CheetaHub Power-3016P (Model No. EH3016P)

Fast Ethernet dual-speed hub with 16 10/100Mbps ports, and internal switch

• Four rubber foot pads • Quick Installation Guide

• Rack mount bracket kit • Owner registration card

• AC power cord

Description of Hardware

These hubs provide 8 (16) dual-speed ports (10/100 Mbps). Each port

automatically senses the speed of the attached device, and channels data to the

appropriate repeater bus. The learning function of the hub stores the node

address and corresponding segment number (i.e., bus 1 or 2) of each incoming

packet in a routing table. If the source and destination node operate at different

speeds, this information is subsequently used to pass traffic to the segment

CheetaHub Power-3008P/3016P

containing the destination node via a 2-port switch that connects the two repeater

buses. By confining traffic to its respective collision domain, and only forwarding

traffic to the other segment when required, the overall load on the network is

significantly reduced.

These hubs provide a friendly design that simplifies installation and network

troubleshooting. The following figure shows the components of the EH3016P:

Mounting the Hub

These hubs can be placed directly on your desktop, or mounted in a rack.

Before you start installing the hub, make sure you can provide the right operating

environment, including power requirements, sufficient physical space, and

proximity to other network devices that are to be connected. Verify the following

installation requirements:

• Power requirements: 100 to 240 VAC (±10%) at 50 to 60 Hz (±3Hz). The hub's

power supply automatically adjusts to the input voltage level.

• The hub should be located in a cool dry place, with at least 10 cm. (4 in.) of

space at the front and back for access to the ports and ventilation.

• Place the hub out of direct sunlight, and away from heat sources or areas with

a high amount of electromagnetic interference.

• If you intend to mount the hub in a rack, make sure you have all the necessary

mounting screws, brackets, bolts and nuts, and the right tools.

• Check if network cables and connectors needed for installation are available.

Stacking Hubs on a Flat Surface

These CheetaHubs can be stacked any place where there is enough flat space,

such as on a table or desktop.

1. Stick the self-adhesive rubber foot pads (that come with this package) on

each of the 4 concave spaces located on the bottom of the first hub.

Quick Installation Guide

2. Place the first hub on a firm flat

surface where you want to install

the stack.

3. Repeat step 1 for each hub before

stacking them. The rubber foot

pads cushion the hub against shock/vibrations and provide space between

each hub for ventilation.

Mounting Hubs in a Rack

Please comply with the following

instructions to ensure that your hub is

securely mounted in the rack.

1. Use a standard EIA 19-inch rack.

2. Use the brackets and screws

supplied in the rack mounting kit.

3. Use a cross-head screwdriver to attach the brackets to the side of the hub.

4. Position the hub in the rack by lining up the holes in the brackets with the

appropriate holes on the rack, and then use the supplied screws to mount the

hub in the rack.

Connecting the Hub System

These hubs have 8 (16) dual-speed RJ-45 station ports, one of which also

serves as a dual-speed MDI daisy-chain port.

Making a Connection via an RJ-45 Station Port

You can connect any RJ-45 (MDI-X) station port on the hub to any device that

uses a standard network interface such as a workstation or server, or to a

network interconnection device such as a bridge or router (depending on the port

type implemented).

1. Prepare the devices you wish to network. Make sure you have installed

10BASE-T or 100BASE-TX network interface cards for connecting to the

hub's RJ-45 (MDI-X) station ports.

2. You also need to prepare straight-through shielded or unshielded twisted-pair

cables with RJ-45 plugs at both ends. Use 100ΩCategory 3, 4 or 5 cable for

standard 10Mbps Ethernet connections, or 100ΩCategory 5 cable for

100Mbps Fast Ethernet connections.

CheetaHub Power-3008P/3016P

3. Connect one end of the cable to the RJ-45 port of the network interface card,

and the other end to any available (MDI-X) station port on the hub. The RJ-45

ports support 10Mbps and 100Mbps Ethernet connections. When inserting an

RJ-45 plug, be sure the tab on the plug clicks into position to ensure that it is

properly seated. Using a hub in a stand-alone configuration, you can network

up to 8 (16) end nodes.

Do not plug a phone jack connector into any RJ-45 port. This may damage the

hub. Use only twisted-pair cables with RJ-45 connectors that conform with FCC

standards.

Notes: 1. Make sure each twisted-pair cable does not exceed 100 meters (328 feet).

2. We advise using Category 5 cable for all network connections to avoid

any confusion or inconvenience in the future when you upgrade attached

devices to Fast Ethernet.

Making a Connection via an MDI Daisy-Chain Port

To make a direct connection to another compatible hub or switch:

1. Prepare straight-through shielded or unshielded twisted-pair cables with RJ-45

plugs at both ends. Use 100ΩCategory 3, 4 or 5 cable for standard 10Mbps

Ethernet connections, or 100Ω Category 5 cable for 100Mbps Fast Ethernet

connections.

2. Plug one end of the network cable into Port 16MDI on the hub, and the other

end to any MDI-X station port on the other device. When inserting an RJ-45

plug, be sure the tab on the plug clicks into position to ensure that it is

properly seated.

Notes: 1. Make sure each twisted-pair cable does not exceed 100 meters (328

feet).

2. To connect to another hub or switch, you may also attach any RJ-45

MDI-X port on the hub to an MDI daisy-chain port on the other device. Or

attach crossover cabling to (MDI-X) station ports at both ends.

Restrictions on Cascade Length - When cascading to another repeater, note

that the attached repeaters will function as a single logical repeater, with all ports

attached to the same collision domain.

• 10 Mbps Cascade - Based on the IEEE 802.3 recommendation, you may

cascade up to four 10Mbps hubs.

• 100 Mbps Cascade - When cascading to a Fast Ethernet hub, limit the daisy-

chain to two hubs. Another limitation for cascading Fast Ethernet concerns

connection length. All end-node devices (e.g., workstations or servers) must

be within 100 meters (328 feet) of the connected hub; and the overall length

between any two nodes should not exceed 205 meters (672 feet). The easiest

way to cascade two Fast Ethernet hubs is to connect the MDI daisy-chain port

on the front panel to an MDI-X port on the other hub. For example, if both

node A and B are linked to separate repeaters in a two hub system, each using

100 meters of cable to connect to their respective hub, then the inter-hub

Quick Installation Guide

cabling will be limited to 5 meters (16 feet). The only way to extend the inter-

hub cabling, would therefore be to reduce the length of the cabling used to

attach the end nodes to the hubs.

•Ethernet Switch - There are no formal restrictions on cascade length if a

device is connected to a switch, which effectively breaks up the collision

domain. When a collision domain is broken up by a device like a switch,

cascade length is limited only by the time-out requirements of the particular

applications running over the network.

Powering On the Hub

1. Plug the power cord into the power socket at the rear of the hub, and the

other end into a power outlet.

2. Check the LED marked Power on the front panel to see if it is on. The unit will

automatically select the setting that matches the connected input voltage.

Therefore, no additional adjustments are necessary when connecting it to any

input voltage within the range marked on the rear panel.

3. The hub performs a self-diagnostic test upon power-on.

Note: The unit supports a "hot remove" feature which permits you to connect/

disconnect cables without powering off the hub and without disrupting the

operation of the devices attached to the hub.

Verifying Port Status

Check each connection by viewing the port status indicators shown in the

following figure and table.

EH3008P EH3016P

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