Allied Telesyn International CentreCOM AT-3004SL AT-3008SL Multiport Repeaters User Manual
Copyright 1994 Allied Telesyn International, Corp. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn International, Corp. Allied Telesyn International, Corp. reserves the right to make changes in specifications and other information contained in this document without prior written notice. The information provided herein is subject to change without notice. In no event shall Allied Telesyn International, Corp.
Table of Contents Table of Contents ................................................................................................................................ iii Electrical Safety and Installation Requirements ............................................................. v Chapter 1 Overview ....................................................................................................................................................1 CentreCOM Multiport Repeaters ..............................
Table of Contents Appendix B Glossary .................................................................................................................................................... 17 Appendix C CentreCOM AT-3004SL/AT-3008SL Manual Feedback ................................................. 25 Appendix D Technical Support Fax Order ..................................................................................................... 27 Incident Summary ..................................................
RADIATED ENERGY U.S. Federal Communications Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Vorsicht ! MONTAGEANWEISUNGEN VORSICHT: Diese Modelle sind für Betrieb in horizontaler Position entworfen worden. Das Gerät darf NICHT OHNE Gebrauch eines dafür entworfenen Allied Telesis-Vertikalmontagegestells in VERTIKALER Position montiert werden. VORSICHT: Die Entlüftungsöffnungen dürfen nicht versperrt sein und müssen zum Kühlen freien Zugang zur Raumluft haben. VORSICHT: Die Gummifüße NICHT ENTFERNEN, außer bei Gebrauch des Allied Telesis-Vertikalmontagegestells.
WAARSCHUWING: De rubberen voetjes NIET van het produkt LOSMAKEN behalve wanneer een chassis voor vertikale montage van Allied Telesis wordt gebruikt. BEDRIJFSTEMPERATUUR De omgevingstemperatuur voor dit produkt mag niet meer bedragen dan 50 graden Celsius. ALLE LANDEN: het toestel installeren overeenkomstig de lokale en nationale elektrische voorschriften. ENERGIE RAYONNEE Ce matériel a été testé et est certifié conforme par la réglementation américaine aux normes définies pour les appareils de classe A.
ENERGIA IRRADIATA Questo prodotto commerciale è stato collaudato e risponde ai requisiti U.S.A. per i dispositivi di classe A. Questo prodotto è stato collaudato e risponde ai requisiti della legge tedesca Vfg 243/1991 per i dispositivi di classe B. Attenzione NORME DI SICUREZZA AVVERTENZE ELETTRICHE ATTENZIONE: PERICOLO DI SCOSSE ELETTRICHE Per evitare SCOSSE ELETTRICHE non asportare il coperchio. Le componenti interne non sono riparabili dall’utente.
ENERGIA IRRADIADA Este produto foi testado e atende aos requisitos para dispositivos comerciais de Classe A nos E.U.A. Este produto foi testado e atende aos requisitos Vfg 243/1991 para dispositivos de Classe B na Alemanha Atenção Perigo ! SEGURANÇA AVISOS SOBRE CARACTERÍSTICAS ELÉTRICAS ATENÇÃO: PERIGO DE CHOQUE ELÉTRICO Para evitar CHOQUE ELÉTRICO, não retire a tampa. Não contém peças que possam ser consertadas pelo usuário.
ENERGIUTSTRÅLNING Denna handelsprodukt har testats och befunnits vara i enlighet med U.S.A.s krav för klass A utrustning. Denna produkt har testats och befunnits vara i enlighet med Tysklands Vfg 243/1991 krav för klass B utrustning. Varning Fara ! SÄKERHET TILLKÄNNAGIVANDEN BETRÄFFANDE ELEKTRICITETSRISK: RISK FÖR ELEKTRISK STÖT För att undvika ELEKTRISK stöt, ta ej av locket. Det finns inga delar inuti som behöver underhållas.
Chapter 1 Overview CentreCOM Multiport Repeaters AT-3004SL 4 Port with One AUI AT-3008SL 8 Port with One AUI The CentreCOM Multiport Repeaters are designed to connect up to 8 Ethernet/IEEE 802.3 thin (10BASE2) network segments. In addition to the thinnet interfaces, a single IEEE 802.3 Attachment Unit Interface (AUI) is provided for attachment to external transceivers.
Overview Features ❑ IEEE 802.3 compliant, Ethernet Version 1.0 and 2.
Chapter 2 Installation Connections Attention Before installing AT-3004SL/AT-3008SL Multiport Repeaters, read the ! electrical safety and installation requirements starting on page i. Power Check your network cabling for proper configuration before installing the AT-3004SL and AT-3008SL repeaters. Power connections are made at the back panel. The AT-3004SL and AT-3008SL repeaters have a universal power supply that will accept either 110 or 220 VAC at 50-60 Hz.
Installation BNC Ports BNC Connections, 10BASE2. A thin Ethernet coaxial cable may be plugged directly into the BNC port located on the back panel. See Figure 4. Next to each of these ports is the 50 Ω termination switch. If the coax is plugged directly without a BNC-T or external terminator then the terminator switch for the respective port must be enabled by selecting the ON position. Each BNC is switched individually. Figure 4: BNC Connector BNC-T Connections.
Chapter 3 Operation Status Indicators The CentreCOM Multiport Repeaters have 3 LED indicators for each port. These indicators, as shown in Figure 6, provide On Line, Activity and SQE/ COL information.
Operation Activity—This LED indicates that the repeater is functional and is transmitting packets to all ports. Power—The red LED indicator illuminates when power is applied. Segmentation (Partitioning) During power-up, the CentreCOM Multiport Repeater will automatically enable the port provided the Auto/Manual switch is in the Auto position and no problems are detected. If a problem is detected, or if the switch is in the Manual mode, the port and associated cabling are isolated from the other ports.
Chapter 4 Troubleshooting If network traffic problems are suspected 1. If the power LED is not illuminated, check the power connections. 2. If the CentreCOM Multiport repeater is receiving power, check that terminations are correct on all BNC ports. 3. If any ports are disconnected verify that they are switched off line by ensuring that the Auto/Manual switch is in the Manual position. 4.
Chapter 5 Configuration Figure 7 illustrates connections of the two CentreCOM Multiport Repeaters together using ATI fiber optic transceivers. ATI Fiber Optic Transceiver AT-120 AUI Cable (50 Meters Maximum) 1 KM Fiber Optic Cable Allied Telesyn CentreCOM 3004SL IEEE 802.
Configuration 50 Ω ATI Transceiver 50 Ω Terminator AT-150 Terminator Allied Telesyn M A N SEGMENT PARTITION COLLISION 8 PORT REPEATER Terminator AT-150 AT-150 29 DTEs Maximum Figure 8: AT-3008SL Ethernet Configuration 10 3 M A N SEGMENT PARTITION COLLISION 4 ON LINE RECEIVE A U T O M A N SEGMENT PARTITION COLLISION 5 ON LINE RECEIVE A U T O M A N SEGMENT PARTITION COLLISION 6 ON LINE RECEIVE A U T O M A N SEGMENT PARTITION COLLISION 7 ON LINE RECEIVE A U T O M A N
Appendix A Data Cabling Techniques The following sections detail cabling techniques and port specifications for IEEE 802.3 media. For comprehensive treatment of these topics, refer to the original IEEE specification. 10BASE-T UTP links support transmissions up to 100 meters (328 ft.) at 10 Megabit data rates. A serious problem exists concerning identification of modular cable. There are various grades of voice-quality and data-quality cables available.
Data Cabling Techniques Table 1 shows the five common modular cable specifications and their applicability to 10BASE-T network use.
Pin 1 Figure 10: RJ45 Cable UTP MAU-to-MAU, Hub-to-Hub Wiring 10BASE-T MAU-to-MAU or hub-to-hub wiring generally requires a crossover cable located somewhere along the UTP cable run. This may commonly occur at the punch-down block or between the RJ45 wall receptacle and the workstation. See Figure 11.
Data Cabling Techniques Table 2 shows which position the straight-through/crossover selection switch needs to be for the device configuration shown. Table 2: MDI and MDI-X Switch Settings for Common Connection1 Model Connected to MDI MDI-X AT-4016TR Hub X AT-4016TR RJ45 Transceiver X AT-4016TR NIC X 1. This table assumes a straight-through cable is being used. The switch setting are the opposite of what is shown if a crossover cable is being used.
If you pair pins incorrectly, for example as shown in Figure 12, Diagram B, your network may have a high data error rate. In a straight-through cable, the transmit pins, 1 and 2, are paired, as are the receive pins, 3 and 6. In a crossover cable (Figure 11), pins 1 and 2, TD+ and TD-, are paired, as are pins 3 and 6, RD+ and RD-. When pins 1 and 2 are crossed over, they connect to pins 3 and 6 respectively, and pins 3 and 6, when crossed over, connect to pins 1 and 2 respectively.
Appendix B Glossary 10BASE2—Also called thinnet or CheaperNet, 10BASE2 is a 10 MHz, baseband, 185 meters (606 ft.) maximum coaxial segment. Cable impedance is 50 Ω. 10BASE5—Also called thick Ethernet, 10BASE5 is a 10 MHz, baseband, 500 meters (1639 ft.) maximum coaxial segment. The cable is commonly referred to as yellow cable. Cable impedance is 50 Ω. Thick Ethernet cable is typically used as a trunk or backbone path of the network. 10BASE-T—IEEE 802.3 UTP Ethernet.
Glossary BIT TIME—The duration of one bit symbol (1/BR). Ethernet specifies a bit time of 100 ns. COAX SEGMENT—A segment of Ethernet cable that contains MAU. CARRIER SENSE MULTIPLE ACCESS with COLLISION DETECT (CSMA/CD)—This is the access method employed by IEEE 802.
DEPARTMENT CONCENTRATOR—Hub which provides a large number of workstation connections. In this manual the term department concentrator refers to multiple repeaters housed in an AT-36C8 chassis. See Hub/Repeater, Repeater. DIX CONNECTOR—See D-Sub Connector HARMONICA ADAPTER—This adapter provides a simple way to convert the 50-pin Telco connection to RJ45 connections.
Glossary MANAGEMENT AGENT—Software that is used to view hub activity and set hub variables. MAU—See Medium Attachment Unit MAU to MAU, HUB to HUB WIRING—10BASE-T MAU to MAU or hub to hub wiring generally requires a cross-over cable located somewhere along the UTP cable run. This may commonly occur at the punch-down block or between the RJ45 wall receptacle and the workstation. MAU/TRANSCEIVER—An Ethernet transceiver is a MAU.
PUNCH-DOWN BLOCK—The punch-down block is the wiring panel where the house wiring from the building’s offices terminates. This is where many 10BASE-T hubs would be located. Wiring installers use a special punch-down tool to insert the UTP wire for data and voice applications. REPEATER—A device used to extend the length, topology, or interconnectivity of the physical medium beyond that imposed by a single segment, up to the maximum allowable end-to-end trunk transmission line length.
Appendix C CentreCOM AT-3004SL/AT-3008SL Manual Feedback Please tell us what additional information you would like to see discussed in the manual. If there are topics you would like information on that were not covered in the manual, please photocopy this page, answer the questions and fax or mail this form back to ATI. The mailing address and fax number are at the bottom of the page. Your comments are valuable when we plan future revisions of the manual.
Appendix D Technical Support Fax Order Name ___________________________________________________________________ Company ________________________________________________________________ Address _________________________________________________________________ City ____________________State/Province____________ Zip/PostalCode __________ Country _________________ Phone __________________Fax ____________________ Incident Summary Model number of ATI product I am using ______________________________________ Fi
