Allied-telesis AT-MR908TX Manual de usuario

CentreCOM AT-MR908TX Standalone/Stackable Hubs Installation Manual ®

viii INSTALLAZIONEELETTRICITÀ—REGOLAZIONE AUTOMATICA DELLA TENSIONE Questo prodotto regolerà automaticamente la tensione ad un valore compreso nella

ix INSTALLASJONELEKTRISK—AUTO SPENNINGSTILPASNING Dette produktet vil automatisk bli tilpasset hvilken som helst strømspenning i de områdene som vise

x INSTALAÇÃOELÉTRICO—AJUSTE AUTOMÁTICO DE VOLTAGEM Este produto ajustar-se-á automaticamente a qualquer voltagem que esteja dentro dos limites indi

xi INSTALACIONELECTRICO—AUTO-AJUSTE DE TENSION Este producto se ajustará automáticamente a cualquier tensión entre los valores máximos y mínimos ind

xii ELEKTRISKT—TYP KLASS 1 UTRUSTNING DENNA UTRUSTNING MÅSTE VARA JORDAD. Nätkabeln måste vara ansluten till ett ordentligt jordat uttag. Ett felakt

xv Table of Contents Electrical Safety and Installation Requirements . . . . . . . . . . . . . . . . . . .i Table of Contents . . . . . . . . . .

xvi Chapter 3Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Connectivity Testing . .

xviiThis manual is written for system administrators who are responsible for configuring, monitoring, and maintaining a Local Area Network (LAN) of whi

About This ManualxviiiDocument ConventionsThe following conventions are used in presenting information in this manual: NoteA note provides additional

AT-MR908TX Hub Installation ManualxixBulletin Board ServicesA bulletin board is available. The number is:206-483-7979Modem settings for the bulletin b

Copyright  1996 Allied Telesyn International Corp.All rights reserved. No part of this publication may be reproduced without prior written permissi

1OverviewThe AT-MR908TX hub is an economical and reliable Fast Ethernet 100 Megabits per second (Mbps) device with eight (8) 100BASE-TX ports. A MDI/M

Product Description2FeaturesAT-MR908TX Standalone/Stackable hubs incorporate the following features:❑ Compliance with IEEE 802.3u 100Mbps repeater spe

AT-MR908TX Installation Manual3Product ModelsSix different models of the AT-MR908TX hub are available, depending on voltage, power cords, and configura

Product Description4Light-emitting Diodes (LEDs)Figure 2 shows the location of the LEDs on the front panel. This faceplate is common to all AT-MR908TX

AT-MR908TX Installation Manual5Table 2 details the purpose, color, and functional description of each LED.Table 2: Front Panel LEDsBack PanelStandalon

Product Description6Stackable/Cascade Hub. An AT-MR901 stacking module, cable, and brackets are used to stack two or more hubs together. Installed in

7Site RequirementsVentilation. All AT-MR908TX hubs have an internal fan and openings on both sides for ventilation. NoteMake sure the ventilation ope

Installation8Network SpecificationsTable 3 provides an overview of IEEE 802.3 and 802.3u specifications for 10BASE-T and 100BASE-TX network configuration

AT-MR908TX Installation Manual9The six common modular cable specifications and their applicability to 100BASE-TX networks are shown in Table 4.Table 4:

i Electrical Safety and Installation Requirements STANDARDS : This product meets the following standardsRFI Emission EN55022 Class A WARNING : In a

Installation10The following models incorporate ATI’s AT-MR901 stacking module. This module enables you to stack up to six units such that they appear

AT-MR908TX Installation Manual112. Remove all equipment from the packing box and store the box and packing materials in a safe place. That is, the uni

Installation12Cascading With Fast EthernetTwo AT-MR908TX hubs can be cascaded to enable support for up to a maximum of 14 network port connections.The

AT-MR908TX Installation Manual131. Make sure the package includes all of the required parts, including:AT-MR908TX hubPower cordWarranty cardThis insta

Installation14Collision Domain DiametersA summary of the collision Domain Diameters is in Table 5:Table 5: Collision Domain Diameters per IEEE Standar

AT-MR908TX Installation Manual15Stacked InstallationAT-MR908TX-19A, AT-MR908TX-29A and AT-MR908TX-39A models are designed to operate together with oth

Installation16AT-MR901 Stacking Module. An AT-MR901 Stacking Module upgrade package includes the following:AT-MR901 Stacking moduleSCSI II Stacking ca

AT-MR908TX Installation Manual174. Secure the stacking module in place with the four screws you removed in Step 2 above.Chassis or Stacking Brackets.

Installation188. Plug all 100BASE-TX cables in the 100BASE-TX network ports (RJ-45 connectors) on the back panel of each unit. You are now ready to op

AT-MR908TX Installation Manual19Second, you are referred to the information previously presented on cascading. This process will, in turn, allow you t

ii CAUTION : POWER CORD IS USED AS A DISCONNECTION DEVICE. TO DE-ENERGISE EQUIPMENT disconnect the power cord.I NSTALLATIONELECTRICAL—AUTO VOLTAGE AD

21Connectivity TestingFollow the steps outlined below to test for a valid connection as well as to confirm the correct operation of the network.1. Conn

Troubleshooting22TroubleshootingIs the unit receiving power?Check the power (PWR) LED on the front of the AT-MR908TX. This green LED should be illumin

AT-MR908TX Installation Manual23— When Port 1 of the AT-MR908TX is not connected to another hub but is used to connect to a workstation or other equip

25Appendix AAT-MR908TX SpecificationsPhysical CharacteristicsDimensions: 14.2” x 6.7” x 1.8”Operating temperatures: 0° to 50° CStorage temperatures: -

AT-MR908TX Specifications26Low chipset latency delay for:❑ Cascade uplink through one RJ-45 port with MDI/MDI-X crossover switch❑ Stackable backplane

AT-MR908TX Installation Manual27Product ModelsSix different models of the AT-MR908TX hub are available, depending on voltage, power cords, and configu

AT-MR908TX Specifications28100BASE-TX Connector PinoutsStraight-through Cable11223 34 45 56 67 78 8Crossover Cable11223 34 45 56 67 78 8TX+ RX+TX-RX

29Appendix BGlossary10BASE2—Also called thin Ethernet, thinnet or CheaperNet, a 10 MHz baseband specification. Cable impedance is 50 Ω and maximum coa

iii INSTALLATIONAUTOMATISCHE SPANNUNGSEINSTELLUNG Dieses Gerät stellt sich automatisch auf die auf dem Etikett aufgeführten Spannungswerte ein. GERÄ

Glossary30CARRIER SENSE—In a LAN, an ongoing activity of a data station to detect whether another station is transmitting.CARRIER SENSE MULTIPLE ACCES

AT-MR908TX Installation Manual31HOUSE WIRING—House wiring is the existing wiring inside a building. This wiring generally originates from one or more

Glossary32MEDIUM DEPENDENT INTERFACE (MDI)—The mechanical and electrical interface between a hub and a transceiver (MAU). MDI-X is another version of

AT-MR908TX Installation Manual33THIN ETHERNET—See 10BASE2TRUNK CABLE—The coaxial cable used to distribute signals over long distances throughout a cab

35Appendix CTechnical Support Fax OrderName__________________________________________________________________Company _________________________________

37Appendix DCentreCOM AT-MR908TX Manual FeedbackPlease tell us what additional information you would like to see discussed in the manual. If there are

39Appendix EWhere To Find UsFor Technical Support or ServiceLocation Phone FaxNorth AmericaUnited States, Canada, Mexico, Central America, South Ameri

iv INSTALLATIONELEKTRISK—AUTOMATISK SPÆNDINGSREGULERING Dette apparat vil automatisk tilpasse sig enhver spænding indenfor de værdier, der er angivet

Where To Find Us40For Sales InformationCanadaRexdale, OntarioTel: (416) 675-6738, Fax: (416) 675-0057Richmond, British ColumbiaTel: (604) 244-0678, Fa

41Appendix FIndexAAT-MR901 Stacking Module 16Auto-partitioning 2Bback panel 6Ccabling10BASE-T 27cabling specifications 8, 26cascading 2,

42IndexVvalid connection 21ventilation 7Voltage/Power Cord Requirement 3, 27WWarranty 2wiring 27

v INSTALLATIEELEKTRISCH: AUTOMATISCHE AANPASSING VAN DE SPANNING Dit toestel past zich automatisch aan elke spanning aan, tussen de op het label verm

vi INSTALLATIONRÉGLAGE DE TENSION AUTOMATIQUE ÉLECTRIQUE Ce matériel peut s’ajuster automatiquement sur n’importe quelle tension comprise dans la pla

vii ASENNUSSÄHKÖ—AUTOMAATTINEN JÄNNITTEENSÄÄTÖ Tämä tuote säätää automaattisesti mihin tahansa jännitteeseen ohjetarrassa annettujen arvojen välillä.