Allied Telesyn International Corp CentreCOM AT-200 Series Manuel d'installation

AlliedTelesynCentreCOMAT-3012TRAT-3016TRAT-3024TRMultiport RepeatersInstallation Manual

xSystem Check...

xiAppendix DCentreCOM AT-30xxTR Manual Feedback ... 37Index ...

1Chapter 1OverviewCentreCOM AT-30xxTR Multiport RepeatersConcepts CentreCOM AT-30xxTR Multiport Repeaters provide low-cost connection for up to 24 IEE

Overview2Jabber Lock-up Protection. Jabber lock-up protects the repeater from being overrun with data packets from a possibly defective device. That i

AT-30xxTR Multiport Repeater3The following checklist highlights the features found on each AT-30xxTR repeater. The remaining chapters of this manual

Overview4Testing You should check the Port OK LED for each 10BASE-T port that is being used. ON indicates a valid link. There are two methods for doin

5Chapter 2InstallationSite RequirementsBefore installing AT-30xxTR repeaters, read the electrical safety and installation requirements starting on pag

Installation6Table 1: AT-30xxTR Model TypesAUI Network Port Each AT-30xxTR repeater has one Attachment Unit Interface (AUI) port to accommodate a 10B

AT-30xxTR Multiport Repeater7Network PortIndicatorsA two-high set of LEDs located between and integrated with the BNC and AUI connectors on the front

Installation8However, you may want to use one of the 10BASE-T ports to link one hub to another (you can also connect hub to hub via the network port).

 Copyright 1995 Allied Telesyn International Corp.All rights reserved. No part of this publication may be reproduced without prior written permission

AT-30xxTR Multiport Repeater9Installation1. Carefully remove the repeater from its packaging materials. Retain the packing materials until satisfactor

11Chapter 3AT-3012TR ConnectivityFront Panel LayoutThe AT-3012TR Multiport Repeater has 12 10BASE-T network ports supplied with shielded RJ45 connecto

AT-3012TR Connectivity12PORT OK—This LED indicates that a valid link has been established and the port is not partitioned.RECEIVING—This LED flashes w

13Chapter 4AT-3016TR ConnectivityFront Panel LayoutThe AT-3016TR Multiport Repeater has 16 10BASE-T network ports supplied with shielded RJ45 connecto

AT-3016TR Connectivity14PORT OK—This LED indicates that a valid link has been established and the port is not partitioned.RECEIVING—This LED flashes w

15Chapter 5AT-3024TR ConnectivityFront Panel LayoutThe AT-3024TR Multiport Repeater has 24 10BASE-T network ports supplied with shielded RJ45 connecto

AT-3024TR Connectivity16PORT OK—This LED indicates that a valid link has been established and the port is not partitioned.RECEIVING—This LED flashes w

17Chapter 6Troubleshooting10BASE-T CablingIf the Power LED is not lit❑ Check your power connections. If the Port OK LED is not lit1. Check that the de

19Chapter 7ConfigurationsThe illustrations in this chapter provide some examples of possible network configurations using CentreCOM AT-30xxTR Multiport

Configurations20Figure 15 shows the maximum extent to which you can cascade these repeaters. Another way of achieving the same result is to use a dual

i Electrical Safety and Installation Requirements RADIATED ENERGY U.S. Federal Communications CommissionNote: This equipment has been tested and fou

AT-30xxTR Multiport Repeater21BNC Bus Bussing of the AT-30xxTR multiport repeater is another possibility. You can accommodate more nodes on your netwo

23Appendix AData Cabling TechniquesThe following sections detail cabling techniques and port specifications for IEEE 802.3 media. For comprehensive tre

Data Cabling Techniques24Table 2 shows the five common modular cable specifications and their applicability to 10BASE-T network use.Table 2: Usable and

AT-30xxTR Multiport Repeaters25UTP MAU-to-MAU,Hub-to-Hub Wiring10BASE-T MAU-to-MAU or hub-to-hub wiring generally requires a crossover cable located s

Data Cabling Techniques26Table 3 shows which position the straight-through/crossover selection switch needs to be for the device configuration shown.Ta

AT-30xxTR Multiport Repeaters27If you pair pins incorrectly, for example as shown in Figure 21, Diagram B, your network may have a high data error rat

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

Glossary30BAYONET NUT COUPLE (BNC) CONNECTOR—A 10BASE2 thin coax connector with push-on BNC locking lug that quickly locks into place with a half twis

AT-30xxTR Multiport Repeaters31DIX CONNECTOR—See D-Sub ConnectorFOIRL — A fiber optic standard that allows up to 1,000 meters (3,280 ft.) of multimode

Glossary32MANAGED MODULE— An intelligent repeater in a department concentrator chassis that makes management data available to the Master.MANAGEMENT A

ii MONTAGEANWEISUNGENVORSICHT : Diese Modelle sind für Betrieb in horizontaler Position entworfen worden. Das Gerät darf NICHT OHNE Gebrauch eines

AT-30xxTR Multiport Repeaters33PROPAGATION DELAY—The time it takes a signal to travel from the input of a system component to the output. Usually meas

Glossary34TCP/IP PROTOCOLS—A set of protocols for intercomputer communication, including network level (Internet Protocol), transport level (Transmiss

35Appendix CTechnical Support Fax OrderName___________________________________________________________________Company ________________________________

37Appendix DCentreCOM AT-30xxTR Manual FeedbackPlease tell us what additional information you would like to see discussed in the manual. If there are

Where To Find UsFor Technical Support or ServiceLocation Phone FaxNorth AmericaUnited States, Canada, Mexico, Central America, South America, Australi

41IndexNumerics10BASE5 (thick)AUI drop cables 2710BASE-TMDI/MDI-X switch 25UTP hub-to-MAU wiring 24UTP MAU-to-MAU, hub-to-hub wiring 25AActivity LED 6

Index42DIX 31D-sub 30N-series 32RJ45 7, 23, 24, 29, 31, 33crossover cable 8DData Communication Equipment (DCE) 30Data Communications Equipment (DCE) 2

Index43retiming 1Ssegmentation 1Signal Quality Error (SQE) 9, 33Simple Network Management Protocol (SNMP)33site requirements 5SQE test 33Station Port

iii ELEKTRISCHE—SNOEREN Gebruik een elektrisch snoer, maximum 4,5 meter lang, berekend voor ten minste 6 ampère, 250 V, uit HAR vervaardigd, met aan

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

v FORSIKTIG : STRØMLEDNINGEN BRUKES TIL Å SLÅ APPARATET AV. HVIS DU VIL DEAKTIVISERE UTSTYRET, må du fjerne strømledningen. INSTALLASJONELEKTRISK—A

vi SEGURIDADAVISOS ELECTRICOSADVERTENCIA: PELIGRO DE ELECTROCHOQUE Para evitar un ELECTROCHOQUE, no quite la tapa. No hay ningún componente en el i

ixTable of ContentsElectrical Safety and Installation Requirements ..............iChapter 1Overview ...