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EH202 . E1298-R0 . 150153-10 . EtherHub-24s Smart Ethernet Hub wit . 24 10BASE-T (RJ-45) ports . 1 10BASE2 (BNC) port . and 1 AUI por . Copyright © 1998 Accton Technology Corporation. All rights reserved . No part of this document . prior written consent of Accton Technology Corporation . Accton makes no warranties with . of merchantability, quality, or fitness for any particular purpose. The information in this documen . is subject to change without notice. Accton . without obligation to notify any person or entity . International Headquarter . USA Headquarter . No. 1 Creation Road III . P.O. Box 5142 . Science-based Industrial Par . Irvine, CA 92619-142 . Hsinchu 300, Taiwan, R.O.C . Phone Numbers . Phone: 886-3-5770-27 . Sales . 888-398-2101 or 714-707-480 . FAX: 886-3-5770-26 . Support . 888-398-4101 or 714-707-484 . Internet: support@accton.com.t . RMA . 888-398-3101 or 714-707-482 . FAX: 714-707-246 . Accton is a trademark of Accton Technology Corporation. Other trademarks or brand names mentione . herein are trademarks or registered trademarks of their respective companies . EH202 . E1298-R0 . 150153-10 . EtherHub-24s Quick Installation Guide 1 Contents Introduction 1 Package Contents 1 Description of Hardware 1 Mounting the Hub 1 Stacking Hubs on a Flat Surface 2 Mounting Hubs in a Rack 2 Connecting the Hub System 2 Making a Connection via an MDI-X Station Port 2 Making a Connection via the MDI Daisy-Chain Port 3 Making a Connection to the BNC Port 3 Making a Connection to the AUI Port 3 Powering on the Hub 3 Verifying Hub Status 4 Applications 4 Product Specifications 4 Base Unit 4 Network Criteria 5 Troubleshooting 5 Diagnosing Hub Indicators 5 Power and Cooling Problems 6 Installation 6 Port and Cable Assignments 6 RJ-45 Port Description 6 EMI Certification 6 FCC Class A (USA) 6 Class A (Canada Department of Communications) 7 Class A (Taiwan Bureau of Commodity Inspection) 7 VCCI Class A Compliance (Japan) 7 CE Mark Declaration of Conformance for EMI and Safety (EEC) 7 Safety Compliance 8 Underwriters Laboratories Inc. (USA) 8 Wichtige Sicherheitshinweise (Germany) 8 Warranty 9 Introduction The EtherHub-24s includes 24 RJ-45 ports, 1 BNC port for connection to thin Ethernet (10BASE2), and 1 AUI port for connection to a variety of media types including 10BASE5 or fiber (using a suitable transceiver). With these options, you can easily link the hub to a thin or thick Ethernet backbone, or connect to a remote office. The hub also has an indicator panel that includes utilization and link/traffic LEDs, making it easy to monitor the hub. This guide contains all the information required to install and operate the hub. Package Contents The package includes: · EtherHub-24s (Model No. EH2024) · Four rubber foot pads · BNC connector · Rack mount bracket kit · Quick Installation Guide · AC power cord · Owner registration card Description of Hardware This hub consists of 24 RJ-45 10Mbps ports, 1 BNC port, and 1 AUI port. The following figure shows the front and back panel of the hub: Mounting the Hub This hub 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 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. EtherHub-24s Quick Installation Guide 2 3 Stacking Hubs on a Flat Surface This hub can be stacked anywhere there is a 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. 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 th...