Gigabit Ethernet Switch AT-GS924GB Installation Guide PN 613-50432-00 Rev C ®
Copyright 2003 Allied Telesyn, Inc. 960 Stewart Drive Suite B, Sunnyvale, CA 94085 USA All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesyn, Inc. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners. Allied Telesyn, Inc.
Electrical Safety and Emission Statement Standards: This product meets the following standards. U.S. Federal Communications Commission RADIATED ENERGY Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Table of Contents Preface ....................................................................................................................................................................................................................vii How This Guide is Organized ........................................................................................................................................................................... vii Document Conventions ............................................
Chapter 3 Troubleshooting ................................................................................................................................................................................................ 27 Appendix A Technical Specifications ................................................................................................................................................................................ 31 Physical Specifications ..................................................
Preface This guide contains the hardware installation instructions for the AT-GS924GB Gigabit Ethernet Switch How This Guide is Organized This manual contains the following chapters and appendices: Chapter 1, Product Description, describes the features and components of the switches. Chapter 2, Installation, contains the installation instructions for the switches. Chapter 3, Troubleshooting, provides information on how to resolve problems that might occur with the switches.
Preface Document Conventions This document uses the following conventions to highlight important information: Note Notes provide additional information. Warning Warnings inform you that performing or omitting a specific action may result in bodily injury. Caution Cautions inform you that performing or omitting a specific action may result in equipment damage or loss of data.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Where to Find Current Product Documentation The installation and user guides for all Allied Telesyn products are available in Portable Document Format (PDF) from the Allied Telesyn web site at www.alliedtelesyn.com. You can view the documents online or download them onto a local workstation or server.
Preface Contacting Allied Telesyn Technical Support You can contact Allied Telesyn technical support online or by telephone. Online Support You can request technical support online by accessing the Knowledge Base from our web site at http://kb.alliedtelesyn.com. You can use the Knowledge Base to submit questions to our technical support staff and review answers to previously asked questions.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Management Software Updates Allied Telesyn periodically updates the management software programs for managed products. You can obtain a new version of a management software program from our web site at www.alliedtelesyn.com or our FTP server at ftp.alliedtelesyn.com. To use the FTP server, enter anonymous for the user name when you log in and your e-mail address for the password.
Preface For Sales or Corporate Information You can contact Allied Telesyn for sales or corporate information at the location listed below: Allied Telesyn, Inc.
Chapter 1 Product Description The AT-GS924GB is an unmanaged, Layer 2 Gigabit Ethernet switch designed to simplify the task of creating or expanding an Ethernet, Fast Ethernet, or Gigabit Ethernet network.
Product Description Features AT-GS924GB Gigabit Ethernet switch features include: 24 10/100/1000 Mbps twisted pair ports 2 GBIC expansion slots Visual diagnostic LEDs Auto-negotiation (IEEE 802.3u-compliant) Backpressure and flow control (IEEE 802.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Components Figure 1 illustrates the front panel of the AT-GS924GB switch.
Product Description Hardware Feature Description The following sections describe hardware features of the AT-GS924GB Gigabit Ethernet switch: Twisted Pair Ports Gigabit Interface Converter (GBIC) Expansion Slots System and Port LEDs AC Power Connector Twisted Pair Ports The AT-GS924GB features 24 twisted pair ports. Type of Connector The twisted pair ports feature 8-pin, RJ-45 connectors. (For the port pinouts, refer to RJ-45 Twisted Pair Port Pinouts on page 35.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Auto-MDI For port speeds of 10 or 100 Mbps, the ports are auto-MDI. They automatically configure themselves as either MDI or MDI-X. This feature allows you to use either straight-through or crossover twisted pair cables to connect devices to the ports. For port speeds of 1000 Mbps, you must use a straight through twisted pair cable.
Product Description LEDs The port LEDs on the front panel display port status information. Each port has four LEDs. AT-GS924GB 10/100/1000Base-T Gigabit Ethernet Switch with GBIC Uplinks Figure 4 LEDs Table 1 below describes the AT-GS924GB port LEDs. Table 1 Port LED Descriptions LED State Description 10 Green Indicates that the port is operating at 10 Mbps. 100 Green Indicates that the port is operating at 100 Mbps. 10 and 100 Green Indicates that the port is operating at 1000 Mbps.
AT-GS924GB Gigabit Ethernet Switch Installation Guide A Few Ethernet Switching Basics An Ethernet switch interconnects network devices, such as workstations, printers, routers, and other Ethernet switches, so that they can communicate with each other by sending and receiving Ethernet frames. MAC Address Table Every hardware device on your network has a unique MAC address. This address is assigned to the device by the device’s manufacturer.
Product Description Duplex Mode Duplex mode refers to how an end-node receives and transmits data. If an end-node can receive or transmit data, but not both simultaneously, the end-node is operating in what is referred to as half-duplex mode. If an end-node can both receive and transmit data simultaneously, the end-node is said to be operating in full-duplex mode.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Backpressure and Flow Control To maintain the orderly movement of data between the end-nodes, an Ethernet switch may periodically need to signal an end-node to stop sending data. This can occur under several circumstances.
Product Description Network Topologies This section illustrates several of the network topologies that you can create with the AT-GS924GB Gigabit Ethernet switch. Power Workgroup Topology The topology shown in Figure 5 is commonly referred to as a power workgroup topology. Each workstation or node is connected directly to a port on the switch. Each node has a dedicated data link to the switch for best performance and reliability. The devices can operate at 10 Mbps, 100 Mbps or 1000 Mbps.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Collapsed Backbone In the topology illustrated in Figure 6, an AT-GS924GB connects Fast Ethernet switches that have Gigabit Ethernet uplinks. This type of topology is often referred to as a collapsed backbone topology. The switch functions as the focal point of the network and transfers an Ethernet frame between the Fast Ethernet switches only when the destination node for the frame is on a different switch than the node that originated the frame.
Chapter 2 Installation This chapter contains installation procedures for the AT-GS924GB Gigabit Ethernet switch.
Installation Reviewing Safety Precautions Please review the following safety precautions before you begin to install the switch or any of its components. Refer to Translated Electrical Safety and Emission Information on page 37 for translated safety statements in your language. (The laser warnings apply if you install an optional fiber optic GBIC module.) Laser Class 1 laser product. 6 Laser Do not stare into the laser beam.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Selecting a Site for the Switch Observe the following requirements when choosing a site for your switch: If you plan to install the switch in an equipment rack, ensure that the rack is safely secured and that it will not tip over. Devices in a rack should be installed starting at the bottom, with the heavier devices near the bottom of the rack. If you are installing the switch on a table, ensure that the table is level and secure.
Installation Planning the Installation Table 2 contains the cabling specifications for the twisted pair ports.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Unpacking the Switch To unpack the switch, perform the following procedure: 1. Remove all components from the shipping package. Note Store the packaging material in a safe location. You must use the original shipping material if you need to return the unit to Allied Telesyn. 2. Place the switch on a level, secure surface. 3. Ensure the following hardware components are included in your switch package.
Installation Installing the Switch in a Rack Perform the following procedure to install the switch in a standard 19-inch rack. If you are not installing the switch in a rack, go to the next procedure: 1. Attach a bracket to one side of the switch using the bracketmounting screws that came with the switch. See Figure 7. Figure 7 Attaching Rackmounting Brackets 2. Install the second rackmounting bracket on the other side of the switch using the remaining bracketmounting screws. 3.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Installing an Optional GBIC Module To install an optional GBIC module, perform the following procedure: 1. Unpack the GBIC module from its shipping container and store the packaging material in a safe location. Figure 8 GBIC Module Note You must use the original shipping material if you need to return the module to Allied Telesyn. Warning A GBIC module can be damaged by static electricity.
Installation GBICs are dust sensitive. When the GBIC is stored or when a fiberoptic cable is not plugged in, always keep plugs in the GBIC optical bores. The most common source of contaminants in the optical bores is debris picked up on the ferrules of the optical connectors. Use an alcohol swab or wipe to clean the ferrules of the optical connector. Bore Ferrule Figure 9 Optical Bore and Ferrule of GBIC Module Note Unnecessary removal and insertion of a GBIC could lead to premature failure. 4.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Cabling and Powering ON the Switch Perform the following procedure to connect the data cables to the switch ports and to apply power to the switch. 1. Connect the twisted pair data cables to the RJ-45 ports on the switch, as shown in Figure 11. 1 2 3 4 Figure 11 Connecting the Twisted Pair Data Cables When connecting a twisted pair cable to a port, observe the following guidelines: An RJ-45 connector should fit snugly into the port on the switch.
Installation 2. If you installed optional fiber optic GBIC modules, remove the dust covers from the ports. GB LA CLA SE SS DO R PR 1 NO ODU INTO T ST CT BEAARE M IC GB 7 IC Figure 12 Removing the Dust Covers from the Fiber Optic Ports Caution Do not remove the dust covers if you do not intend to connect the fiber optic cables at this time. Dust contamination can adversely impact the operations of the ports. 3. Attach the fiber optic data cables to the fiber optic ports.
AT-GS924GB Gigabit Ethernet Switch Installation Guide When attaching a fiber optic cable, observe the following guidelines: Ensure that the cable connector is firmly locked into place in the port. With a dual SC connector, ensure to connect the receiver fiber port to the transmitter port on the remote end-node, and the transmitter fiber port to the receiver port on the remote node.
Installation Warning The power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord. 10 Note For information on the system LEDs, refer to LEDs on page 6. The switch is ready for network operations.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Warranty Registration After installing your switch, you can register your product by completing the enclosed warranty card and sending it to Allied Telesyn.
Chapter 3 Troubleshooting This chapter contains information on how to troubleshoot the switch in the event that a problem occurs. Note If you are still unable to resolve the problem after following the instructions in this chapter, contact Allied Telesyn Technical Support for assistance. Refer to Contacting Allied Telesyn Technical Support on page x. Check the PWR LED on the front of the switch.
Troubleshooting For twisted pair ports, verify that the ACT LED for each port is ON. If a ACT LED is OFF, do the following: Verify that the end-node connected to the port is powered ON and is operating properly. Verify that the twisted pair cable is securely connected to the port on the switch and to the port on the end-node. Ensure that the twisted pair cable does not exceed 100 meters (328 feet).
AT-GS924GB Gigabit Ethernet Switch Installation Guide Use a fiber optic tester to test the attenuation on the cable to determine if the strength of the fiber optic signal falls below acceptable limits. Check that the operating specifications (for instance, wavelength and maximum operating distance) of the fiber optic port on the remote end-node are compatible with the fiber optic port on the switch. For example, you cannot connect a fiber optic port with a maximum distance of 40 kilometers (24.
Appendix A Technical Specifications Physical Specifications Dimensions: (H x W x D) 4.4 cm x 43.2 cm x 25.0 cm (1.7 in x 17 in x 9.8 in) Weight: 5.25 kg (11.60 lbs) Recommended Minimum Ventilation on All Sides: 10 cm (4.
Technical Specifications Environmental Specifications 32 Operating Temperature: 0° C to 40° C (32° F to 104° F) Storage Temperature: -25° C to 70° C (-13° F to 158° F) Operating Humidity: 5% to 90% non-condensing Storage Humidity: 5% to 95% non-condensing Operating Altitude Range: Up to 3,000 m (9,843 ft)
AT-GS924GB Gigabit Ethernet Switch Installation Guide Power Specifications Maximum Power Consumption: 46 watts AC Input Electrical Ratings: 100~240V AC, 2A Frequency: 50~60 Hz 33
Technical Specifications Safety and Electromagnetic Emissions Certifications Safety: UL 1950 (UL/cUL), EN60950 (TUV), EN60825 EMI: FCC Class A, EN55022 Class A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 Immunity: EN55024 Reliability MTBF – 26,000 hours, system (includes PCBA at 114,000 hours, fan module at 50,000 hours and power module at 99,000 hours) The MTBF was predicted using Telcordia SR-332 parts count method for a ground benign environment at 30ºC.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Connectors This section lists the connectors and connector pinouts for the AT-GS924GB Gigabit Ethernet switch and its components. RJ-45 Twisted Pair Port Pinouts Figure 15 illustrates the pin layout to an RJ-45 connector and port. 1 8 8 1 Figure 15 RJ-45 Connector and Port Pin Layout Table 3 lists the RJ-45 pin signals when a twisted pair port is operating in the MDI configuration.
Technical Specifications Table 5 lists the RJ-45 connector pins and their signals when a 1000Base-T port is operating at 1000 Mbps. Table 5 RJ-45 1000Base-T Connector Pinouts1 Pin Pair Signal 1 1 TX and RX+ 2 1 TX and RX- 3 2 TX and RX+ 4 3 TX and RX+ 5 3 TX and RX- 6 2 TX and RX- 7 4 TX and RX+ 8 4 TX and RX- 1. Bi-directional data on each pair. SC Connector The AT-GS924GB Gigabit Ethernet switch uses an SE connector.
Appendix B Translated Electrical Safety and Emission Information Important: This appendix contains multiple-language translations for the safety statements in this guide. Wichtig: Dieser Anhang enthält Übersetzungen der in diesem Handbuch enthaltenen Sicherheitshinweise in mehreren Sprachen. Vigtigt: Dette tillæg indeholder oversættelser i flere sprog af sikkerhedsadvarslerne i denne håndbog. Belangrijk: Deze appendix bevat vertalingen in meerdere talen van de veiligheidsopmerkingen in deze gids.
Translated Electrical Safety and Emission Information Standards: This product meets the following safety standards. U.S. Federal Communications Commission RADIATED ENERGY Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
AT-GS924GB Gigabit Ethernet Switch Installation Guide 12 PLUGGABLE EQUIPMENT, the socket outlet shall be installed near the equipment and shall be easily accessible. 13 CAUTION: Air vents must not be blocked and must have free access to the room ambient air for cooling. 14 OPERATING TEMPERATURE: This product is designed for a maximum ambient temperature of 40° degrees C. 15 ALL COUNTRIES: Install product in accordance with local and National Electrical Codes.
Translated Electrical Safety and Emission Information 15 ALLE LÄNDER: Installation muß örtlichen und nationalen elektrischen Vorschriften entsprechen. Standarder: Dette produkt tilfredsstiller de følgende standarder. 1 Radiofrekvens forstyrrelsesemission FCC Klasse A, EN55022 Klasse A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 ADVARSEL: I et hjemligt miljø kunne dette produkt forårsage radio forstyrrelse. Bliver det tilfældet, påkræves brugeren muligvis at tage tilstrækkelige foranstaltninger.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Eisen: Dit product voldoet aan de volgende eisen. 1 RFI Emissie FCC Klasse A, EN55022 Klasse A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 WAARSCHUWING: Binnenshuis kan dit product radiostoring veroorzaken, in welk geval de gebruiker verplicht kan worden om gepaste maatregelen te nemen. 3 Immuniteit EN55024 4 Electrische Veiligheid UL 1950 (UL/cUL), EN60950 (TUV) 5 Laser EN60825 VEILIGHEID 6 WAARSHUWING Klasse-1 laser produkt.
Translated Electrical Safety and Emission Information Normes: ce produit est conforme aux normes de suivantes: 1 Emission d’interférences radioélectriques FCC Classe A, EN55022 Classe A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 MISE EN GARDE : dans un environnement domestique, ce produit peut provoquer des interférences radioélectriques. Auquel cas, l’utilisateur devra prendre les mesures adéquates.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Standardit: Tämä tuote on seuraavien standardien mukainen. 1 Radioaaltojen häirintä FCC Luokka A, EN55022 Luokka A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 VAROITUS: Kotiolosuhteissa tämä laite voi aiheuttaa radioaaltojen häiröitä, missä tapauksessa laitteen käyttäjän on mahdollisesti ryhdyttävä tarpeellisiin toimenpiteisiin.
Translated Electrical Safety and Emission Information Standard: Questo prodotto è conforme ai seguenti standard. 1 Emissione RFI (interferenza di radiofrequenza) FCC Classe A, EN55022 Classe A, VCCI Class A, C-TICK, EN61000-32, EN61000-3-3 2 AVVERTENZA: in ambiente domestico questo prodotto potrebbe causare radio interferenza. In questo caso potrebbe richiedersi all’utente di prendere gli adeguati provvedimenti.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Sikkerhetsnormer: Dette produktet tilfredsstiller følgende sikkerhetsnormer. 1 RFI stråling FCC Klasse A, EN55022 Klasse A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 ADVARSEL: Hvis dette produktet benyttes til privat bruk, kan produktet forårsake radioforstyrrelse. Hvis dette skjer, må brukeren ta de nødvendige forholdsregler.
Translated Electrical Safety and Emission Information Padrões: Este produto atende aos seguintes padrões. 1 Emissão de interferência de radiofrequência FCC Classe A, EN55022 Classe A, VCCI Class A, C-TICK, EN61000-32, EN61000-3-3 2 AVISO: Num ambiente doméstico este produto pode causar interferência na radiorrecepção e, neste caso, pode ser necessário que o utente tome as medidas adequadas.
AT-GS924GB Gigabit Ethernet Switch Installation Guide Estándares: Este producto cumple con los siguientes estándares. 1 Emisión RFI FCC Clase A, EN55022 Clase A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 ADVERTENCIA: en un entorno doméstico, este producto puede causar radiointerferencias, en cuyo caso, puede requerirse del usuario que tome las medidas que sean convenientes al respecto.
Translated Electrical Safety and Emission Information Standarder: Denna produkt uppfyller följande standarder. 1 Radiostörning FCC Klass A, EN55022 Klass A, VCCI Class A, C-TICK, EN61000-3-2, EN61000-3-3 2 VARNING: Denna produkt kan ge upphov till radiostörningar i hemmet, vilket kan tvinga användaren till att vidtaga erforderliga åtgärder. 3 Immunitet EN55024 4 Elsäkerhet UL 1950 (UL/cUL), EN60950 (TUV) 5 Laser EN60825 SÄKERHET 48 6 VARNING! Laserprodukt av klass 1.
