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16/24-port 10/100 Mbps Ethernet Hub User's Guide Acer Ethernet Hub ALH-316ds/324ds update ALH-316_324UM.qxd 11/10/99 8:42 AM ›¶›– 1.
I Copyright Copyright © 1999 by this company and all rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any lan.
II T able of Contents 1. Introduction............................................................. 1 2. Hardware Installation.............................................. 2 3. Hardware Description............................................. 8 4. T rouble shooting.
1 Thanks for your purchase of the ALH-316ds/324ds. ALH-316ds/324ds is an 16/24-port dual speed hub works as terminal connecting equipment in corporate environment to combine the 10Mbps users and 100Mbps power users.
2 This chapter will guide you through how to install the ALH-316ds/324ds. It includes procedures for 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 2-1 and 2-2.
3 2.1 Connecting power cord Carefully unpack the ALH-316ds/324ds and it’s accessories. For the first time that you use this hub, please make sure there is all the same as the checking list in the package. The procedure for connecting to the power will be: 1.
If the LED is not lit up, there must be something wrong and please reference to Chapter 4 for quick trouble shooting. Figur e 2-4 Connecting to computers 2.3 LEDs interface overview Y ou can observe the LEDs status to see if the hub works fine. The meanings of LEDs are summarized as T able 2-1.
5 2.3.1 System indicators PWR: When the power is connected rightly , the PWR LED will be lit on Green. If the LED is not lit on, then you should check the connection of your power and the outlet of power . Fan Err .: When the fan malfunction at work, then the Fan Err LED will be lit up and blink.
6 2.3.3 Network utilization indicators There are 2 sets of LED indicators to indicate the real-time network utilization of 10 Mbps and 100 Mbps domain. Speed Color Utilization 10M 10Mbps Green 5, 15, 25 Y ellow 35, 55+ 100M 100Mbps Green 5, 15, 25 Y ellow 35, 55+ Figur e 2-5 Network utilization indicators The number of utilization is in percentage.
2.4 Rack mounting T o install the ALH-316ds/324ds hub in a 19-inch rack, please follow these steps: 1. If the hub has rubber footpads on the bottom of the unit, please remove them. 2. Locate the rack mounting holes on both sides of the hub (see Figure 2- 6).
This chapter describes the network topology for hybrid 10 Mbps and 100 Mbps networks, cabling requirement for connections, the interoperability between hubs and switches.
9 3.2 How to use up-link port With up-link port you can use it to cascade to another switch to expand your network. Please refer to the following procedure. 1. Use one end of UTP to connect to the 16th /24th up-link port of ALH- 316ds/324ds 2. Use the other end to connect to the normal port of the new switch 3.
• The hub will be divided into Master and Slave hubs when they are stacked together . The upper most hub is the Master hub, and other hubs are Slave hubs. The Master hub continues to use the built-in switch but the switch in the Slave hubs will be disabled, as in Figure 3-3.
• 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 3-5. Figur e 3-5Unlimited cascading of ALH-316ds/324ds.
3.4 Interconnection to Hubs and Switches 3.4.1 Connecting to Ethernet Hubs : The factors governing hub interconnection are: • The hubs are only connected by uplink port. ALH-316ds/324ds will automatically transmit at 10Mbps network speed when connecting to 10Mbps Ethernet hubs and 100Mbps network speed if connected to 100Mbps hubs.
Figur e 3-8 Connect to Ethernet Switches. No matter if the ALH-316ds/324ds hubs are stacked together or not, the user always can connect to Ethernet switches by the uplink port. 3.5 Application With this application diagram, you can clearly see the possibility what ALH- 316ds/324ds can do for you in expand your network.
4.1 Symptoms and Suggestions Symptoms Possible Reason Suggestion All LEDs are off. The hub is not receiving 1.Check if the AC power cord power . plug is both securely fastened at the AC outlet and the hubs. 2.Contact you vender if still unworkable. Fan Err .
Specification: Comply with IEEE 802.3 /802.3u repeater standards - 16/24-port 10Base-T/100Base-TX RJ-45 phone jack ports - 1-port Uplink 10Base-T/100Base-TX RJ-45 phone jack port LEDs indicators: Power , Fan err ., Collision, Utilization, Link/Receive, 10/100Mbps.
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.
If you purchased this product in the UNITED ST A TES, some states do not allow the limitation or exclusion of liability for incidental consequential damages, so the above limitation may not apply to you. Contact us: Acer Computer International Ltd. T aiwan Branch T el: 886-2-2696 0123 ext.
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