608-UM 1/8/99 2:34 PM ≠∂≠±1 8-Port AcerHub Dual-Speed Ethernet Hub ALH-608ds User's Manual
608-UM 1/8/99 2:34 PM ≠∂≠±I Copyright Copyright©1998-1999 Acer Netxus Inc. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or computer language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise, without the prior written permission of Acer Netxus Inc. Disclaimer Acer Netxus Inc.
608-UM 1/8/99 2:34 PM ≠∂≠±1 IMPORTANT SAFETY INSTRUCTIONS 1. Read these instructions carefully. Save these instructions for future reference. 2. Follow all warnings and instructions marked on the product. 3. Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 4. Do not use this product near water. 5. Do not place this product on an unstable cart, stand, or table. The product may fall, causing serious damage to the product.
608-UM 1/8/99 2:34 PM ≠∂≠±2 About this Manual Purpose This user manual gives you all the information you need to operate the AcerHub ALH-608ds dual-speed Ethernet hubs properly. Note: ALH-608ds is the model number of AcerHub 608ds.This model number "ALH-608ds" will be used through this manual.
608-UM 1/8/99 2:34 PM ≠∂≠±3 Table of Contents Chapter 1 Overview 1.1 Product goal 1-1 1.2 Product features 1-1 1.3 Product configuration 1-2 Chapter 2 Make Your Hub Ready 2.1 Connecting to the external power supply 2-1 2.2 Installing the hub on your working surface 2-4 2.3 Connecting to computers 2-7 Does the hub work well? 2-9 2.4.1 LED overview 2-9 2.4 2.4.2 System status indicators 2-10 2.4.3 Network status indicators 2-11 2.4.
08-UM 1/8/99 2:34 PM ≠∂≠±4 Quick Installation Guide 1. Unpack the AcerHub ALH-608ds dual-speed Hub and it's accessories (refer section 1.3). 2. Connect the Hub to the external Power supply (refer to section 2.4.1) 3. Use the normal ports to connect to PCs and computers. 4. Use the uplink port to connect to another hub or LAN switch.
608-UM 1/8/99 2:34 PM ≠∂≠±5 1. Overview Congratulations on your purchase of the AcerHub 608ds. The AcerHub ALH608ds is a 8-port dual-speed fast Ethernet repeater hub for connection with multiple PCs to a workgroup LAN (Local Area Network) environment to share network resources. 1.1 Product goal AcerHub ALH-608ds provides high-speed and easy access to the LAN and Intranet both for SOHO (Small Office/ Home Office) and corporations.
608-UM 1/8/99 2:34 PM ≠∂≠±6 large network,refer section 3.1 for details.) • Built-in switch auto-disable function to avoid data looping when stacking • External switching power supply for lower power consumption and heat emission • Compact design for SOHO desktop environment for easy networking 1.3 Product configuration The product configuration inside the package is shown in the figure 1-1. Please check the contents of the package if there is any missing part before using the hub.
608-UM 1/8/99 2:34 PM ≠∂≠±7 2. Make Your Hub Ready This chapter will guide you through how to install the AcerHub ALH-608ds. It includes procedures for connecting to the external power supply, installing the hub on your working surface, connecting the Hub to your computer, and guidelines to see if it works well. Before setting up your hub, please take note of the front and rear panel of this hub, as shown in Figure 2-A and 2-B.
608-UM 1/8/99 2:34 PM ≠∂≠±8 Figure 2-1 Get the hub and power adapter 2.1.2 Place the hub on the desktop and remove the packing box of the power adapter, as shown in Figure 2-2.
608-UM 1/8/99 2:34 PM ≠∂≠±9 2.1.3 Verify it's a 5V,3A power adapter by looking at the indicating label. If the adapter is correct, please stretch the cable and plug the cord into the power jack of the hub, as shown in Figure 2-3. Figure 2-3 Connect to the power adapter 2.1.4 Once the hub is connected to the power adapter, please connect the power adapter to a power cord, as shown in Figure 2-4.
608-UM 1/8/99 2:34 PM ≠∂≠±10 2.1.5 Plug the power cord into the outlet on the wall and check if the power LED lights up. If it lights up, then the hub is ready to be connected to the network, as shown in Figure 2-5. Figure 2-5 Power on the hub and make it ready 2.2 Installing the hub on your working surface You have to find a solid working surface to place the hub and make sure the equipment is not close to any high voltage power source or over-heated sources.
608-UM 1/8/99 2:34 PM ≠∂≠±11 Figure 2-6 Lay hub on stable desktop 2.2.2 If you are installing more than one hub, please turn off the power of all hubs first. Then you can get another hub and place it above the previous one on the working surface, as shown in Figure 2-7. Finally, put the stacking kit in the middle of two sides and click into the stacking hole in the plastic housing. Check if all hubs are tightly fastened by the stacking kits and proceed to next step.
608-UM 1/8/99 2:34 PM ≠∂≠±12 2.2.3 Get the stackable cable and connect the cable to the stacking connector on the hub, as shown in Figure 2-8. Connect "Down" SCSI port of the upper hub to "Up" SCSI port of the lower hub. Any loose connection of the stackable cable will cause problems with network performance and quality. Figure 2-8 Connect hubs by stacking cable 2.2.4 If you are trying to add more hubs in your office, you can follow the procedures from 2.2.2 to 2.2.3 repeatedly.
608-UM 1/8/99 2:34 PM ≠∂≠±13 Figure 2-9 Stack multiple hubs together 2.3 Connecting to computers 2.3.1 Make sure the hub is ready for networking by checking if the PWR indicator displays. 2.3.2 See if the computer is working and find the RJ-45 connector of the adapter card in computers. You can connect UTP (Unshielded Twistered Pair) cables from normal ports of the hub to computers directly, as shown in Figure 2-10.
608-UM 1/8/99 2:34 PM ≠∂≠±14 2.3.3 Arrange the route for cabling if no fixed cabling box is provided. Otherwise, It's right way to connect from your computer to the fixed cabling box on your working surface and plug the other end of the cable to the RJ-45 connector on the hub, as shown in Figure 2-11. Figure 2-11 Connect UTP cable from hub to computers 2.3.4 After connecting to the hub, please check if the Link LEDs on the adapter card and the hub(named as LNK/Rx) are lit up, as shown in Figure 2-12.
608-UM 1/8/99 2:34 PM ≠∂≠±15 Figure 2-12 Check the Link LEDs both on hub and adapter card 2.3.5 If you are trying to connect more cables to the hub, please follow procedures from section 2.3.2 to 2.3.4. 2.4 Does the hub work well? You can observe the LED status to see if the hub works fine. The meanings of LEDs are defined in section 2.4.1. 2.4.1 LED overview The locations of LED indicators are shown in Figure 2-13.
608-UM 1/8/99 2:34 PM ≠∂≠±16 There are three groups of LED indicators in the front panel: • System status indicators: Indicate the overall system status of the hub. It includes system PWR, Fan Err., Master, Slave indicators, Collision of 10 and 100M, and Bridge function • Network status indicators: Indicate working status of each connection port, It includes port 100/10M, LNK/Rx and Partition • Network utilization indicators: Indicate the bandwidth utilization of 10 and 100Mbps.
608-UM 1/8/99 2:34 PM ≠∂≠±17 Note: It's normal either Master or Slave LED will display when hubs are stacking. Note:The difference between Master hub and Slave hub will be explained in chapter 3. Collision: Indicate if a collision occurs in 10Mbps or 100Mbps domain. Bridge: Indicates if the bridging function is enabled. Note: The slave hub will provide a Bridge Uplink Port, see chapter 3 for details. 2.4.
608-UM 1/8/99 2:34 PM ≠∂≠±18 Figure 2-15 Network Status Indicators 100/10: Indicates if the port is working at 100Mbps or 10Mbps. LNK/Rx: Indicates if the port is linked to another port or receiving data. Partition: Indicates if the port is partitioned or not. A port is partitioned if it experiences consecutive collisions. 2.4.4 Network utilization indicators There are 2 sets of LED indicators to indicate the real-time network utilization of 10Mbps and 100Mbps domain.
608-UM 1/8/99 2:34 PM ≠∂≠±19 Figure 2-16 Network utilization indicators The number of utilization is in percentage. For example, "15" of "100M" means 15% of 100Mbps, "55+" of "10M" means the utilization is more than 55% of 10Mbps.
608-UM 1/8/99 2:34 PM ≠∂≠±20 3. Building Feasible Networks This chapter describes the network topology for hybrid 10Mbps and 100Mbps networks, cabling requirement for connections, the interoperability between hubs and switches and the function of bridge Up-Link port. Please turn over the page to see the different Topologies. 3.
608-UM 1/8/99 2:34 PM ≠∂≠±21 Figure 3-2 Master and Slave hubs in stacking ALH-608ds. Note: 1. To concern the convenience of the cross-wiring connection between hubs, ALH-608ds provide 1 normal port (marked as "II) and 1 cross-over port (marked as "X"). These 2 ports are wired to each other by different wiring assignments. 2. The up-link port utilizes the first connection port with "X" sign.
608-UM 1/8/99 2:34 PM ≠∂≠±22 • By way of an uplink port with a Bridge function, the limitations on 100Mbps hub count(maximum 2) can be eliminated. The hub count is unlimited and cable length between hubs can reach 100meters, as shown in Figure 3-4. Figure 3-4 Unlimited cascading of ALH-608ds. • All PCs with 10Mbps network adapter cards transmit data at 10Mbps and form the 10Mbps network domain, as shown in Figure 3-5.
608-UM 1/8/99 2:34 PM ≠∂≠±23 • The data in 10Mbps or 100Mbps domain will be inter-connected by internal built-in switch in the Master hub consequently. • All hubs delivering data by the shared-bus always work on half-duplex mode; that is, data can be sent or received at one time in one direction. 3.2 Interconnection to Hubs and Switches 3.2.1 Connecting to Ethernet Hubs : The factors governing hub interconnection are: • The hubs are only connected by uplink port.
608-UM 1/8/99 2:34 PM ≠∂≠±24 3.2.2 Connecting to Ethernet Switches : The factors governing hub and switch interconnection are: • The hubs are only connected to Ethernet switches by an uplink port. ALH608ds will automatically work at 100Mbps network speed when connected to 10/100Mbps Ethernet switching ports and it will work at 10Mbps network speed if connected to 10Mbps switching ports. Figure 3-7 Connect to Ethernet Switches.
608-UM 1/8/99 2:34 PM ≠∂≠±25 4. Troubleshooting 4.1 Symptoms and Suggestions Symptoms All LEDs are off Possible Reason The hub is not receiving DC power Link LED of a 1.The UTP cable is not connected securely connected port is off 2.The port is bad 3. If the other party is a PC, the Network interface card(NIC) could be not working 4. If the other party is a hub or LAN switch, the connected ports signal could be cross-over 100 LED is not lit when connected to a 100 NIC or 100 Hub(but Link LED is lit.
608-UM 1/8/99 2:34 PM ≠∂≠±26 4.2 Master and Slave LEDs State and Result/Action If you have any problem in building your network with AcerHub ALH-608ds, please contact your Vendor or visit our website: Http:// www.acernetxus.com.
608-UM 1/8/99 2:34 PM ≠∂≠±27 Appendix A.Specifications Network Interface 8-port 10/100 dual-speed auto-detection function • 10Mbps Ethernet IEEE 802.3 10Base-T • 100Mbps Ethernet IEEE 802.3u 100Base-TX One of the ports(Port NO.1)has two RJ-45 connector to provide either normal or uplink connection. Physical Dimension (From front View) Width 230 mm Depth 170 mm Height 45 mm Weight 1.
608-UM 1/8/99 2:34 PM ≠∂≠±28 Product Limited Warranty Acer Netxus Incorporated (ANI) warrants its product to be free from defects in materials and workmanship, under normal use and service, for the following lengths of time from the date of purchase from ANI or its Authorized Resellers.
608-UM 1/8/99 2:34 PM ≠∂≠±29 Contact us: Acer Computer International Ltd. Acer UK Limited Taiwan Branch Tel: 886-2-2713 9099 ext.7293 Tel: 44-1628-533422 Fax: 44-1628-524071 Fax: 886-2-2718 4895 http://www.aci.acer.com.tw http://www.aceruk.co.uk Acer Computer France S.A.R.L. Acer America Corporation Tel: 1-408-432 6200 Fax:1-408-922 2993 Tel: 33-1-4817 4040 Fax: 33-1-4817 4089 http://www.acer.
608-UM 1/8/99 2:34 PM ≠∂≠±30 100% Recyclable Paper Acer Netxus Inc.
