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Фрагмент инструкции
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 No. 1 Creation Road III, Science-based Industrial Park Hsinchu 300, Taiwan, R.O.C. Phone: 886-3-5770-270 FAX: 886-3-5770-267 Internet: support@accton.com.tw USA Headquarters P.O. Box 51420 Irvine, CA 92619-1420 Phone Numbers Sales: 888-398-2101 or 949-707-4800 Support: 888-398-4101 or 949-707-4847 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 ii 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 1 1 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...
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