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Allied Telesis AT-GS900/8

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2. AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide 41 42 43 A
3. TEL Ha PSTN 26 AWG 75 Translated Safety Statements 76
4. SELV IEC 60950 UL 18 AWG UL 22 AWG
5. Y 73 Translated Safety Statements 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 74
6. UL 600 90 14 AWG Allied Telesyn
7. Ha
8. 51 Contents Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 AT GS900 8 and AT GS900 8E Front 5 suisses 17 AT GS900 8 and AT GS900 8E Back 17 AT GS900 8 and AT GS900 8E System and Port LEDs 19 External Power Adapter for the AT GS900 8E Model 21 Power Workgroup Topology ER 25 Collapsed Backbone Hub 26 Attaching the Rubber Feet itai ios 34 Power Cord Retaining Clip aaa lie ea aiar 35 Power Cord Retaining 35 Inserting the Retaining Clip into the Retaining Bracket ern nenn 36 Retaining Clip Installed in the Retaining 36 Aligning an AT GS900 8E Switch for Mounting on the 37 Mounting an AT GS900 8E Switch on the Wall sise 38 Attaching the Rack Mount 39 Connecting the Twisted Pair Data Cables sis 41 Power Cord Retaining Clip in the Up Position sise 42 Plugging in the AC Power Cordier Aide 42 Securing the Power Cord with the Retaining Clip sise 43 Connecting the Powe
9. Translated Safety Statements Indicazioni sulla sicurezza laser 1 2 A A Avvertenza Prodotto laser Classe 1 Avvertenza Non fissare il raggio laser Indicazioni sulla sicurezza elettrica 68 10 11 12 A Avvertenza evitare scosse elettriche non rimuovere la copertura All interno sono presenti componenti utilizzabili dall utente Questa unit presenta voltaggi rischiosi e deve essere aperta solo da un tecnico qualificato ed esperto Per eliminare il rischio di scosse elettriche scollegare il cavo di alimentazione del prodotto prima di collegare o scollegare i cavi della rete locale LAN Pericolo Non utilizzare l apparecchiatura o maneggiare i cavi in caso di lampi Attenzione Il cavo di alimentazione viene utilizzato come dispositivo di scollegamento Per togliere la corrente all apparecchiatura scollegare il cavo di alimentazione Attenzione Apparecchiatura Classe 1 Questa apparecchiatura deve essere messa a terra Il cavo di alimentazione deve essere collegato a un socket correttamente cablato e messo a terra Un socket non correttamente cablato potrebbe trasferire voltaggi pericolosi su componenti di metallo accessibili Apparecchiatura cablata Il socket deve essere installato accanto all apparecchiatura e deve essere facilmente accessibile Attenzione Le prese d aria non devono essere ostruite e devono avere libero accesso all aria dell ambiente per raffred
10. Y 40 15
11. Industry Canada This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe respecte toutes les exigences du R glement sur le mat riel brouilleur du Canada RFI Emissions FCC Class EN55022 Class 61000 3 2 61000 3 3 VCCI Class B C TICK CE Immunity EN55024 Electrical Safety EN60950 TUV UL 60950 5 Translated Safety Statements Important Appendix B contains translated safety statements for installing this equipment When you see the sr go to Appendix B for the translated safety statement in your language Wichtig Anhang B enthalt bersetzte Sicherheitshinweise f r die Installation dieses Ger ts Wenn Sie sehen schlagen Sie in Anhang den bersetzten Sicherheitshinweis in Ihrer Sprache nach Importante El Ap ndice B contiene mensajes de seguridad traducidos para la instalaci n de este equipo Cuando vea el simbolo vaya al Ap ndice para ver el mensaje de seguridad traducido a su idioma Important L annexe B contient les instructions de s curit relatives l installation de cet quipement Lorsque vous voyez le symbole reportez vous l annexe B pour consulter la traduction de ces instructions dans votre langue Importante l Appendice B contiene avvisi di sicurezza tradotti per l installazione di questa apparecchiatura simbolo indica di consultar
12. OFF 13 14 15 16 17 18 19 20 21 22 23 24 25 gt gt Bb gt AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide
13. Caution To allow proper cooling of the gateway device make sure that the air flow around the unit and through its heatsink cooling fins on the rear is not restricted Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring Appropriate consideration of equipment nameplate ratings should be used when addressing this concern Caution Risk of explosion if battery is replaced by an incorrect type Replace only with the same or equivalent type recommended by the manufacturer Dispose of used batteries according to the manufacturer s instructions Attention Le remplacement de la batterie par une batterie de type incorrect peut provoquer un danger d explosion La remplacer uniquement par une batterie du m me type ou de type quivalent recommand e par le constructeur Les batteries doivent tre limin es conform ment aux instructions du constructeur Warning For centralized DC power connection install only in a restricted access area A tray cable is required to connect the power source if the unit is powered by centralized DC power The tray cable must be a UL listed Type TC tray cable and rated at 600 V and 90 degrees C with three conductors minimum 14 AWG 53 Translated Safety Statements 54 27 28 29 30 31 32 33 34 35 36 37 38
14. Questa apparecchiatura funziona con sistemi CC con messa a terra a polarit positiva o negativa Avvertenza Solo personale esperto e qualificato pu installare o sostituire l apparecchiatura Attenzione Per un montaggio a muro sicuro del dispositivo necessario utilizzare i supporti di montaggio forniti in dotazione Attenzione Non installare il dispositivo in un luogo esposto alla luce solare umido polveroso Attenzione Non esporre il dispositivo gateway all umidit o all acqua Attenzione Se il gateway installato in un ambiente chiuso verificare che l ambiente sia privo di polvere Il sito di installazione dovrebbe disporre di un facile accesso alle porte del gateway Questo vi consentir di collegare e scollegare i cavi e visualizzare i LED in modo semplice Avvertenza La fonte di alimentazione dell unit gateway deve essere posizionata vicino all unit in un luogo facilmente accessibile Attenzione Per consentire il raffreddamento appropriato del dispositivo gateway verificare che il flusso d aria attorno all unit e attraverso le ventole di raffreddamento per la dispersione del calore poste sul retro non sia ostruito Sovraccarico del circuito Prestare attenzione al collegamento dell apparecchiatura al circuito di alimentazione e all effetto che il sovraccarico dei circuiti potrebbe avere sulla protezione contro i sovraccarichi di corrente e sui cavi di alimentazione In tal senso tenere presente i val
15. 230 VAC UK 240 VAC EU AUS 15 watts max Safety and Electromagnetic Emissions Certifications EMI RFI FCC Class B EN55022 Class B VCCI Class B CISPR Class B 47 A Technical Specifications Immunity EN55024 Electrical Safety 60950 TUV UL60950 UL us CSA C TICK CE Connectors and Port Pinouts This section lists the connectors and connector pinouts for the AT GS900 8 and AT GS900 8E switches and their components Figure 20 illustrates the pin layout to an RJ 45 connector and port A 1 Figure 20 RJ 45 Connector and Port Pin Layout Table 4 lists the RJ 45 pin signals when a twisted pair port is operating in the MDI configuration Table 4 MDI Pin Signals 10Base T or 100Base TX Pin Signal 1 TX 2 TX 3 RX 6 RX Table 5 lists the RJ 45 port pin signals when a twisted pair port is operating in the MDI X configuration Table 5 MDI X Pin Signals 10Base T or 100Base TX Pin Signal 1 RX 2 RX 3 TX 6 TX Table 6 lists the RJ 45 connector pins and their signals when a 48 AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide 1000Base T port is operating at 1000 Mbps Table 6 RJ 45 1000Base T Connector Pinouts Pin Pair Signal TX and RX TX and RX TX and RX TX and RX TX and RX TX and RX AJ OJN A AINI O
16. 25 Chapter 1 Overview Collapsed _ In the topology illustrated in Figure 6 an AT GS900 8E connects Fast Backbone 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 end node for the frame 1 on a different switch than the end node that originated the frame This reduces the amount of unnecessary data traffic in each workgroup freeing up bandwidth and improving network performance AT GS900 8E Switch 10M C 1000M L 100M C c AVE Allied Telesyn AT G S 900 BE 10 100 1000BASE T G abitE themetSw ith LINK ACT _ POWER 1 Fast Ethernet Switches with Gigabit Uplinks N Legend 564 10 Mbps 100 Mbps 1000 Mbps Figure 6 Collapsed Backbone Hub Topology 26 Chapter 2 Installation This chapter contains the following sections un non 0 0 0 Reviewing Safety Precautions on page 28 Selecting a Site for the Switch page 30 Cabling on page 31 Unpacking the Switch on page 32 Using a Switch on a Desktop on page 34 Installing the Power Cord Retaining Clip on the AT GS900 8L Switch on page 35 Mo
17. Two rack mount brackets Four rack mount screws Four rubber feet for desktop use Two plastic anchors for wall mounting Two flat head self tapping screws for wall mounting One power cord One power cord retaining clip One power adapter with AT GS900 8LE model only Documentation CD Warranty card For the AT GS900 8E 0 0 One 900 8 Gigabit Ethernet switch Four rubber feet for desktop use Two plastic anchors for wall mounting Two flat head self tapping screws for wall mounting One power adapter Documentation CD Warranty card As an option the following item 1 available separately AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide O Magnetkit For additional information on the magnet kit please consult your ATI sales representative 33 Chapter 2 Installation Using a Switch on a Desktop You can place AT GS900 8 and AT GS900 8E switches on a desktop or install them in a 19 inch rack To install the switch in a rack refer to Installing a Switch in a Rack on page 39 To place the switch on a desktop perform the following procedure 1 Remove all equipment from the package and store the packaging material in a safe place 2 Attach the four rubber feet to the bottom of the switch as shown in Figure 7 E I ds ot p 6 9000904 9u31qe619 1 35 80001 001 01 O D PETS 18 006 5 lv 2 2
18. Mounting a Switch on the Wall To mount the AT GS900 8 or AT GS900 8E switch on a wall perform the following procedure 1 Remove all equipment from the package and store the packaging material in a safe place Select a wall location and mark two hole locations for the anchors 100 mm 3 93 in apart Note The switch can be mounted horizontally or vertically This procedure shows the horizontal mounting At the two marked hole locations pre drill for the drywall anchors using a 4 5 mm 3 16 in drill bit Install the anchors and drive the screws into the anchors leaving approximately 4 8 mm 3 16 in exposed Align the keyholes on the back with the screw heads as shown in Figure 12 Figure 12 Aligning an AT GS900 8E Switch for Mounting on the Wall 37 Chapter 2 Installation 6 Place the keyhole slots on the bottom of the switch over the screw heads as shown in Figure 13 Figure 13 Mounting an AT GS900 8E Switch on the Wall 7 Slide the switch down onto the screw heads so that the switch securely mounted on the wall 38 AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Installing a Switch in a Rack To install the AT GS900 8 or AT GS900 8E switch in a rack perform the following procedure 1 Ifattached remove the rubber feet using a flat head screwdriver 2 Install bracket on one side of the switch using a Phillips screwdriver and two of the rack
19. PIV a O wor Figure 7 Attaching the Rubber Feet 3 Place the switch on a flat secure surface such as a desk or table leaving ample space around the unit for ventilation 34 AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Installing the Power Cord Retaining Clip on the AT GS900 8L Switch To install the power cord retaining clip on the AT GS900 8 switch perform the following procedure Note Install the power cord retaining clip before you install the switch in a rack 1 Locate the power cord retaining clip as shown in Figure 8 Figure 8 Power Cord Retaining Clip 2 Locate the retaining bracket on each side of the AC power connector on the back of the switch as shown in Figure 9 EE i 0 00 24 Ova 50 04 6A Bracket Figure 9 Power Cord Retaining Bracket 35 Chapter 2 Installation 3 With the u of the clip facing up press the sides of the clip toward the center and insert the short ends into the holes in the retaining bracket as shown in Figure 10 in in 1902407 de D 2 au Figure 10 Inserting the Retaining Clip into the Retaining Bracket 4 Verify that the retaining clip is in the correct position as shown in Figure 11 1 00 2 ca S0 60Hz 0 SA n Figure 11 Retaining Clip Installed in the Retaining Bracket 36 AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide
20. Q Store and forward switching mode MAC address table capacity of up to addresses with automatic aging AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Front and Back Panels Figure 1 illustrates the front panels of the AT GS900 8 and AT GS900 8E switches AT GS900 8 MY Allied Telesyn 1m00000000 5 900 8 1000 10 100 1000BASE T Gigabit Ethernet S witch 100M LINK ACT O POWER FDXO 1 2 3 4 5 6 7 8 C O L ceo A Cg sed Port LEDs 10 100 1000Base Twisted Pair Ports AT GS900 8E AYA Allied Telesyn AT GS 900 8E itch C 1000M gee 10 100 1000BASE T Gigabit Ethernet S wi 2 3 4 5 6 U 8 561 Port LEDs 10 100 1000Base Twisted Pair Ports Figure 1 AT GS900 8 and AT GS900 8E Front Panels Figure 2 illustrates the back panels of the AT GS900 8 and AT GS900 8E switches AT GS900 8 100 240V 50 60Hz 0 6A AT GS900 8E 5 12V DC Figure 2 AT GS900 8 and AT GS900 8E Back Panels Chapter 1 Overview Ports The AT GS900 8 and AT GS900 8E switches feature eight twisted pair ports The twisted pair ports feature 8 pin RJ 45 connectors For the port pinouts refer to Connectors and Port Pinouts on page 48 The ports are 10Base T 100Base TX and 1000Base T compliant and are ca
21. Switches Installation Guide LEDs The LEDs on the front panel display the system and port status information Each port has four LEDs as shown in Figure 3 AT GS900 8 Allied Telesyn AT GS 900 8 10 100 1000BASE T Gigabit Ethernet Switch AT GS900 8E AVE Allied Telesyn 5 900 8 Ethernet Switch 10 100 1000BASE T Gigabit 1 2 3 4 563 10M0 O 1000M E L 100M O LINK ACT FDXO OO POWER 1772347 15 169708 Figure 3 AT GS900 8 and AT GS900 8E System and Port LEDs Table 2 describes the AT GS900 8 and AT GS900 8E system and port LEDs Table 2 System and Port LED Descriptions LED State Description POWER Off The switch is not receiving power On The switch is receiving power 10M Solid Green The port is operating at 10 Mbps 100M Solid Green The port is operating at 100 Mbps 10M and Solid Green The port is operating at 1000 Mbps 100M LINK ACT Off The port has not established a link with an end node Blinking The port is transmitting or receiving data Green Green A valid link has been established on the port Chapter 1 Overview 20 Table 2 System and Port LED Descriptions Continued LED State Description FDX The port is operating in half duplex mode Green The port is operating in full duplex mode Power Supplies AT GA900 8 a
22. circulation d air requise pour son fonctionnement s curis Avertissement Une terre fiable doit tre maintenue sur l quipement en rack Faire plus particuli rement attention aux connexions d alimentation autres que les connexions directes sur les circuits de d rivation par ex utilisation de barrettes d alimentation AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide T l communications Avis de conformit 41 42 43 A Avertissement Les pr cautions l mentaires de s curit doivent tre syst matiquement respect es en utilisant l quipement t l phonique pour r duire les risques d incendie d lectrocution et d accident corporel notamment Ne pas utiliser ce produit pr s d une source d eau telle qu une baignoire un lavabo un vier ou un baquet dans un sous sol humide ou pr s d une piscine viter d utiliser le t l phone autre que sans fil en pr sence de foudre pendant un orage La foudre peut entra ner un l ger risque d lectrocution Ne pas utiliser le t l phone pour signaler une fuite de gaz proximit de la fuite Avertissement Avant de connecter les ports t l phoniques TEL sur le p riph rique servant de passerelle veiller d connecter les alimentations RTPC r seau t l phonique public commut du local Avertissement Pour r duire les risques d incendie utiliser uniquement un cordon de t l communication n 26 AWG ou sup rieur 67
23. del equipo Atenci n Se debe mantener en todo momento la fiabilidad de la conexi n a tierra de los equipos montados en rack Preste especial atenci n a las conexiones que no procedan directamente de los circuitos de bifurcaci n por ej regletas de conexi n AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Avisos de conformidad de telecomunicaciones 41 42 43 A Atenci n Cuando utilice su equipo telef nico deber adoptar las siguientes precauciones de seguridad b sicas para reducir el riesgo de incendio descarga electr nica y lesiones No utilice este producto en zonas h medas por ejemplo cerca de una ba era un lavabo o un fregadero en un s tano h medo o cerca de una piscina Evite el uso de tel fonos no inal mbricos durante una tormenta el ctrica a fin de evitar el riesgo de electrocuci n como consecuencia de un rayo No utilice el tel fono para notificar una fuga de gas en las inmediaciones de la misma Atenci n Antes de realizar la conexi n a los puertos de telefon a TEL del dispositivo de puerta de enlace aseg rese de desconectar la alimentaci n de la red telef nica conmutada p blica PSTN RTC de las instalaciones Atenci n Utilice s lo cable de telecomunicaci n 26 AWG o superior para reducir el riesgo de incendio 63 Translated Safety Statements Avis de s curit laser 1 2 A Avertissement Produit laser de class
24. guides for all Allied Telesyn products are available in portable document format PDF on our 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 Online Support Email and Telephone Support Returning Products Sales or Corporate Information Management Software Updates This section provides Allied Telesyn contact information for technical support as well as sales and corporate information You can request technical support online by accessing the Allied Telesyn Knowledge Base 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 For Technical Support via email or telephone refer to the Support 8 Services section of the Allied Telesyn web site www alliedtelesyn com Products for return or repair must first be assigned a return materials authorization RMA number A product sent to Allied Telesyn without an RMA number will be returned to the sender at the sender s expense To obtain an RMA number contact Allied Telesyn Technical Support through our web site www alliedtelesyn com You can contact Allied Telesyn for sales or corporate information through our web site www alliedtelesyn com To find the contact information for your country select Contact Us gt Worldwide Contacts New releases of managem
25. half duplex This results in the end node using full duplex and the switch port using half duplex This can produce network performance problems Should you encounter this situation you must configure the port on the end node to use Auto Negotiation or if it lacks that feature to half duplex Note Since the ports on the AT GS900 8 and AT GS900 8E switches operate in Auto Negotiate mode only the end nodes connected to the AT GS900 8 or AT GS900 8E switch must also be configured to operate in the Auto Negotiate mode If an end node is configured to a specific duplex in a manual mode it will not respond to the Auto Negotiate protocol from the AT GS900 8 or AT GS900 8E switch The speed is determined from the link pulses however so the speed is always detected correctly As a result the port setting on the AT GS900 8 or AT GS900 8E switch will end up at half duplex If the end node is manually configured to full duplex there will be a duplex mismatch and data will be lost If the end node is manually configured to half duplex both ports will have the speed and duplex match up correctly The AT GS900 8 and AT GS900 8E switches use store and forward as the method for receiving and transmitting frames When a Ethernet frame is received on a switch port the switch does not retransmit the frame out the destination port until it has received the entire frame and stored the frame in a port buffer It then examines the frame to determine if
26. k nnen f r Personen die sie ber hren gef hrlichen Strom f hren Dieses System kann in Verbindung mit positiv geerdeten oder negativ geerdeten Gleichstromsystemen verwendet werden Achtung Das Installieren und der Austausch dieser Ausr stung ist nur ausgebildetem und qualifiziertem Personal gestattet Vorsicht Mechanische Montage Zur sicheren Wandmontage des Ger ts sind die beiliegenden Montageklammern zu verwenden Vorsicht Das Ger t darf nicht an feuchten staubigen oder direktem Sonnenlicht ausgesetzten Orten installiert werden Vorsicht Das Gateway Ger t darf keiner Feuchtigkeit oder Wasser ausgesetzt werden Vorsicht Bei der Innenraummontage des Gateway Ger ts ist darauf zu achten dass es in einer staubfreien Umgebung installiert wird Es sollte ein Installationsort gew hlt werden an dem die Ports am Gateway Ger t gut zug nglich sind um das AnschlieRen und Abtrennen von Kabeln zu erleichtern und den freien Blick auf die LEDs zu erm glichen Achtung Die Stromquelle f r die Gateway Einheit sollte sich in ihrer N he befinden und leicht zug nglich sein Vorsicht Zur Gew hrleistung der erforderlichen K hlung des Gateway Ger ts ist darauf zu achten dass der Luftfluss um die Einheit und ber seine an der R ckseite befindlichen K hlrippen nicht behindert wird Stromkreis berlastung Der Anschluss der Ausr stung an den Versorgungsstromkreis und die m glichen Auswirkungen der berlastung von Schaltk
27. les surcharges et le c blage d alimentation Tenir compte des valeurs nominales indiqu es sur la plaque signal tique de l quipement Attention Le remplacement de la batterie par une batterie de type incorrect peut provoquer un danger d explosion La remplacer uniquement par une batterie du m me type ou de type quivalent recommand e par le constructeur Les batteries doivent tre limin es conform ment aux instructions du constructeur Avertissement Pour une connexion d alimentation c c centralis e installer uniquement dans un emplacement d acc s limit 65 Translated Safety Statements 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 66 Un chemin de c ble doit tre utilis pour la connexion la source d alimentation si l unit est aliment e par alimentation c c centralis e Le chemin de c ble doit tre de type TC agr UL intensit nominale de 600 V 90 C trois conducteurs 14 AWG minimum Avertissement L installation de l quipement sur un rack doit se faire sans provoquer de danger par un chargement m canique d s quilibr Avertissement Retirer les bijoux en m tal tels que les bagues et les montres avant d installer ou de retirer une carte d un chassis sous tension Utiliser des circuits d alimentation ou des unit s de conditionnement d di s pour fournir une alimentation lectrique fiable l quipement Avertissement Le ch s
28. 39 40 Warning Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading Warning Remove all metal jewelry such as rings and watches before installing or removing a line card from a powered on chassis Use dedicated power circuits or power conditioners to supply reliable electrical power to the device Warning The chassis may be heavy and awkward to lift Allied Telesyn recommends that you get assistance when mounting the chassis in an equipment rack Warning Do not look directly at the fiber optic cable ends or inspect the cable ends with an optical lens Warning This unit might have more than one power cord To reduce the risk of electric shock disconnect all power cords before servicing the unit Warning Only trained and qualified personnel are allowed to install or to replace this equipment Warning The power input must be provided from SELV source only per IEC 60950 Do not connect to a centralized DC battery bank UL recognized wires of 18 AWG minimum should be provided by the installer UL recognized wires of 22 AWG minimum should be provided by the installer Caution Power to the hub must be sourced only from the adapter If installed in a closed or multi unit rack assembly the operating ambient temperature of the rack environment may be greater than the room ambient temperature Therefore consideration should be given to installing the equip
29. 8 AT GS900 8E This product complies with FCC Part 15B Class Limits This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device must not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation Radiated Energy Note This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with instructions may cause harmful interference to radio or television reception which can be determined by turning the equipment off and on The user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected Consult the dealer or an experienced radio TV technician for help Changes and modifications not expressly approved by the manufacturer or registrant of this equipment can void your authority to operate this equipment under Federal Communications Commission rules
30. Gigabit Ethernet Switches AT GS900 8 AT GS900 8E Installation Guide AN Allied Telesyn 613 000140 Copyright 2005 Allied Telesyn Inc All rights reserved No part of this publication may be reproduced without prior written permission from Allied Telesyn Inc Microsoft and Internet Explorer are registered trademarks of Microsoft Corporation Netscape Navigator is a registered trademark of Netscape Communications Corporation All other product names company names logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners Allied Telesyn Inc 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 Inc be liable for any incidental special indirect or consequential damages whatsoever including but not limited to lost profits arising out of or related to this manual or the information contained herein even if Allied Telesyn Inc has been advised of known or should have known the possibility of such damages Electrical Safety and Emissions Standards This product meets the following standards U S Federal Communications Commission Declaration of Conformity Manufacturer Name Allied Telesyn Inc Declares that the product Gigabit Ethernet Switches Model Numbers AT GS900
31. J OJN TX and RX TX and RX 49 A Technical Specifications 50 Translated Safety Statements Important This appendix contains multiple language translations for the safety statements in this guide Wichtig Dieser Anhang enth lt bersetzungen der in diesem Handbuch enthaltenen Sicherheitshinweise in mehreren Sprachen Importante Este ap ndice contiene traducciones en multiples idiomas de los mensajes de seguridad incluidos en esta gu a Important Cette annexe contient la traduction en plusieurs langues des instructions de s curit figurant dans ce guide Importante Questa appendice contiene traduzioni in pi lingue degli avvisi di sicurezza di questa guida 51 Translated Safety Statements Laser Safety Notices 1 2 Warning Class 1 Laser product Warning Do not stare into the laser beam Electrical Safety Notices 52 10 11 12 13 Warning To prevent electric shock do not remove the cover No user serviceable parts inside This unit contains hazardous voltages and should only be opened by a trained and qualified technician To avoid the possibility of electric shock disconnect electric power to th
32. Secure the power cord by lowering the retaining clip as shown in Figure 18 i 00 2 40 50 60 06 42 AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Figure 18 Securing the Power Cord with the Retaining Clip 4 Plug the other end of the power cord into a wall outlet A Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord 5 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible 7 5 Verify that the POWER LED is green If the LED is OFF refer to Chapter 3 Troubleshooting page 45 The switch is now powered on and ready for network operations Powering On an To power an AT GS900 8E switch perform the following procedure AT GS900 8E 1 Plug the power cord on the power adapter into the power connector on Switch the back panel of the AT GS900 8E switch as shown in Figure 19 5 12V DC O gt Figure 19 Connecting the Power Adapter 2 Plug the adapter into a power outlet A Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord 2 5 3 Verify that the POWER LED is green If the LED is OFF refer to Chapter 3 Troubleshooting page 45 The switch is now powered on and ready for network operations 43 Chapter 2 Installation Warranty Registra
33. air ports Table 3 Twisted Pair Cabling and Distances Maximum Speed Type of Cable Operating Distance 10 Mbps Category 3 or better 100 ohm 100 m 328 ft shielded or unshielded twisted pair cable 100 Mbps Category 5 or Category 100 m 328 ft Enhanced 100 ohm shielded or unshielded twisted pair cable 1000 Mbps Category 5 and Category 5E 100 m 328 ft Enhanced 100 ohm shielded or unshielded twisted pair cable Note The twisted pair ports on the switch feature auto MDI when operating at either 10 or 100 or 1000 Mbps Each port is individually configured as MDI or MDI X when connected to an end node Consequently you can use either a straight through or crossover twisted pair cable when connecting any network device to a twisted pair port on the switch 31 Chapter 2 Installation Unpacking the Switch 32 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 If any item is missing or damaged contact your Allied Telesyn sales representative for assistance For the AT GS900 8 0000000000 One AT GS900 8 Gigabit Ethernet switch
34. cauci n Las rejillas de ventilaci n no deben estar obstruidas y deben tener libre acceso al aire de la sala para facilitar la refrigeraci n Atenci n Temperatura de funcionamiento Este producto est dise ado para funcionar con una temperatura ambiente m xima de 40 C Todos los pa ses Instale el producto de acuerdo con las recomendaciones de la normativa sobre instalaciones el ctricas de su pa s Atenci n Como medida de seguridad instale un disyuntor con un valor m nimo de 15 A entre el equipo y la toma de alimentaci n CC Conecte siempre los cables a los equipos de la LAN antes de conectarlos al disyuntor No trabaje con cables activos para evitar el riesgo de lesiones f sicas derivadas de una descarga el ctrica Aseg rese siempre de que el disyuntor est en la posici n desconectada antes de conectar los cables Atenci n No pele m s que la longitud recomendable de cable Si se supera dicha longitud puede producirse un riesgo al quedar cable al descubierto en el bloque de terminales despu s de la instalaci n 13 14 15 16 17 18 19 20 21 22 23 24 25 26 gt gt Bb gt AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Atenci n Cuando instale el equipo aseg rese de instalar primero la conexi n a tierra del bastidor y de desconectarla en ltimo lugar Atenci n Compruebe si hay alg n hilo de cobre al descubierto que proceda del cabl
35. dare l apparecchiatura Temperatura di esercizio Questo prodotto progettato per una temperatura ambiente massima di 40 C Per tutti i paesi Installare il prodotto in conformit con le normative sull elettricit locali e nazionali Avvertenza Per precauzione installare un salvavita con un valore minimo di 15 ampere tra l apparecchiatura e la fonte di alimentazione CC Collegare i cavi all apparecchiatura LAN prima di collegarli al salvavita Per evitare il rischio di danni fisici causati da scosse elettriche non utilizzare l apparecchiatura ad alte temperature Verificare che il salvavita sia in posizione OFF prima di collegare i cavi Avvertenza Non scollegare pi cavi di quelli raccomandati pu essere pericoloso lasciare dei cavi esposti sul blocco terminale dopo l installazione 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 gt Bb gt gt AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Avvertenza Quando si installa l apparecchiatura verificare che il collegamento di messa a terra FG frame ground sia installato per primo e disinstallato per ultimo Avvertenza Verificare che non sporgano fili di rame dai cavi installati Se l installazione viene effettuata correttamente non vi sono fili di rame scoperti sporgenti dal blocco terminale Gli eventuali fili scoperti possono condurre livelli di elettricit dannosi sulle persone che li toccano
36. e 1 Avertissement Ne pas observer directement le rayon laser Avis de s curit lectrique 64 10 11 A Avertissement Pour viter tout risque d lectrocution pas d poser le capot L appareil ne contient aucun composant r parable par l utilisateur Il est expos des tensions dangereuses et ne doit tre ouvert que par un technicien comp tent et qualifi Pour viter tout risque d lectrocution d brancher l alimentation lectrique du produit avant de connecter ou de d connecter les c bles de r seau local Avertissement Ne pas travailler sur cet quipement ni sur ses c bles en pr sence de foudre Avertissement Le cordon d alimentation est utilis en tant que m canisme de d connexion Pour mettre l quipement hors tension d brancher le cordon d alimentation Avertissement quipement de classe Cet quipement doit tre mis la terre La prise d alimentation doit tre branch e sur une sortie d alimentation correctement mise la terre Dans le cas contraire les pi ces m talliques accessibles risquent d tre soumises des tensions dangereuses quipement connecter La prise d alimentation doit se situer proximit de l quipement et tre facilement accessible Attention Les orifices de ventilation doivent rester libres de toute obstruction pour pouvoir assurer le refroidissement par l air de la pi ce Avertissement Temp rature de fonctionnement Ce produit a t c
37. e instalado Cuando la instalaci n se realiza correctamente no debe quedar ning n hilo de cobre al descubierto fuera del bloque de terminales Todo cable descubierto puede conducir un nivel peligroso de electricidad a las personas que lo toquen Este sistema funciona con sistemas CC con conexi n a tierra positiva y negativa Atenci n Este equipo s lo debe ser instalado y manipulado por personal convenientemente formado y cualificado Precauci n Utilice los soportes de montaje que acompa an al dispositivo para montarlo en un muro Precauci n No instale el dispositivo expuesto a la luz solar directa ni en un lugar h medo o con polvo Precauci n No exponga el dispositivo de puerta de enlace a la humedad o el agua Precauci n Si el dispositivo de puerta de enlace se instala en el exterior aseg rese de que el entorno est libre de polvo El emplazamiento debe permitir un acceso f cil a los puertos del dispositivo de puerta de enlace De esta forma resultar f cil conectar y desconectar los cables y ver los indicadores LED Atenci n La toma el ctrica de la unidad de puerta de enlace debe estar situada cerca de la unidad y ser de f cil acceso Precauci n Para permitir la refrigeraci n adecuada del dispositivo de puerta de enlace aseg rese de no limitar la circulaci n de aire alrededor de la unidad ni a trav s de las aletas de refrigeraci n del radiador de la parte trasera Sobrecarga de circuitos Tenga en cu
38. e l Appendice per l avviso di sicurezza nella propria lingua a Contents Preface ss ibi 11 Safety Symbols Used in this 12 Where to Find Web based Guides Lee est ente entente nn elle 13 Contacting Allied Telesyni r are aida ai 14 Online SUpport E al init 14 Email and Telephone Support ae ner en le ea 14 Returning Products iet eei cas 14 Sales or Corporate Informationi iii 14 Management Software 14 Chapter 1 Overview A rape 15 tUm 16 Front and Back Panels ale see sn een in era ehe 17 Ports E 18 EDS rin pn Re eee Nr ri mn nn Mn Ent 19 Power SUPpplies EE 21 Ethernet Switching BASICS a 22 MAC Address Table sec ic ora e EE e HE eR UD ERG ERR UR Rx ten S UPS 22 Duplex Mode eT 22 A 23 Back Pressure and Flow GConitrol eiie tete eisdem ren a ii 24 Network T
39. e product before connecting or disconnecting the LAN cables Warning Do not work on equipment or cables during periods of lightning activity Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord Warning Class Equipment This equipment must be earthed The power plug must be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place hazardous voltages on accessible metal parts Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible Caution Air vents must not be blocked and must have free access to the room ambient air for cooling Warning Operating Temperature This product is designed for a maximum ambient temperature of 40 degrees C All Countries Install product in accordance with local and National Electrical Codes Warning As a safety precaution install a circuit breaker with a minimum value of 15 Amps between the equipment and the DC power source Always connect the wires to the LAN equipment first before you connect the wires to the circuit breaker Do not work with HOT feeds to avoid the danger of physical injury from electrical shock Always be sure that the circuit breaker in the OFF position before connecting the wires to the breaker Warning Do not strip more than the recommended amount of wire Stripping more than the recommended amount can create a safety
40. eady to receive data again the switch stops forcing collisions This is referred to as back pressure A port operating at 100 Mbps and full duplex mode uses PAUSE frames as specified in the IEEE 802 3x standard to stop the transmission of data from an end node Whenever the switch wants an end node to stop transmitting data it issues this frame The frame instructs the end node to cease transmission The switch continues to issue PAUSE frames until it is ready again to receive data from the end node This is referred to as flow control The AT GS900 8 and AT GS900 8E switches support both TX and RX flow control AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Network Topologies This section illustrates two network topologies that you can create with the AT GS900 8 and AT GS900 8E switches a power workgroup and collapsed backbone Both types of topologies are described below Power The topology shown in Figure 5 is commonly referred to as a power Workgroup workgroup topology Each workstation or end node is connected directly to a port on the AT GS900 8 switch Each end node has a dedicated data Topology link to the switch for best performance and reliability The devices can operate at 10 Mbps 100 Mbps or 1000 Mbps AT GS900 8 Gigabit Ethernet Switch Allied Telesyn na rr om Legend 10 Mbps 100 Mbps 1000 Mbps Figure 5 Power Workgroup Topology
41. ent software for our managed products are available from either of the following Internet sites O Allied Telesyn web site www alliedtelesyn com O Allied Telesyn FTP server ftp ftp alliedtelesyn com If you prefer to download new software from the Allied Telesyn FTP server from your workstation s command prompt you will need FTP client software and you must log in to the server Enter anonymous for the user name and your email address for the password Chapter 1 Overview The AT GS900 8 and AT GS900 8E switches are unmanaged Layer 2 Gigabit Ethernet switches designed to simplify the task of creating or expanding an Ethernet Fast Ethernet or Gigabit Ethernet network This chapter contains the follows sections Features on page 16 Front and Back Panels on page 17 Ports on page 18 LEDs on page 19 Power Supplies on page 21 Ethernet Switching Basics on page 22 Oo no oo Q 0 Network Topologies on page 25 Chapter 1 Overview Features The features of the AT GS900 8 and AT GS900 8E switches include O LEDs for unit and port status Eight Auto Negotiating 10 100 1000Base T twisted pair ports with RJ 45 connectors External power adapter for AT GS900 8LE model only Auto MDI MDI X on all ports IEEE 802 3 and IEEE 802 3u compliant IEEE 802 3x flow control in full duplex operation back pressure and flow control in half duplex operation vo oo 0
42. enta la conexi n del equipo al circuito de alimentaci n y el posible efecto de la sobrecarga de los circuitos en la protecci n contra excesos de corriente y en los cables de alimentaci n Para ello consulte los valores que se indican en la placa de caracter sticas del equipo Precauci n Si la bater a se sustituye por otra de tipo incorrecto existe un peligro de explosi n Sustit yala nicamente por otra bater a del mismo tipo o equivalente recomendada por el fabricante Deseche la bater a de acuerdo con las instrucciones del fabricante Atenci n En el caso de una conexi n CC centralizada instale la unidad en una zona de acceso restringido Utilice un cable de control para la conexi n a la toma el ctrica si la unidad utiliza alimentaci n CC centralizada El cable de control debe ser de tipo TC figurar en la lista UL y tener una capacidad nominal de 600 V y 90 C con tres conductores y de un m nimo de14 AWG 61 Translated Safety Statements 62 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Atenci n Si el equipo se monta en un rack se deber evitar todo peligro de irregularidad en la carga mec nica Atenci n Qu tese todas las joyas met licas como anillos y relojes antes de instalar quitar una tarjeta de red de un chasis con alimentaci n el ctrica Utilice circuitos de alimentaci n dedicados o acondicionadores de alimentaci n para suministrar e
43. hazard by leaving exposed wire on the terminal block after installation Warning When installing this equipment always ensure that the frame ground connection is installed first and disconnected last 14 15 16 17 18 19 20 21 22 23 24 25 26 gt P p ye AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Warning Check to see if there are any exposed copper strands coming from the installed wire When this installation is done correctly there should be no exposed copper wire strands extending from the terminal block Any exposed wiring can conduct harmful levels of electricity to persons touching the wires This system works with positive grounded or negative grounded DC systems Warning Only trained and qualified personnel are allowed to install or to replace this equipment Caution The attached mounting brackets must be used to securely mount the device on the wall Caution Do not install in direct sunlight or a damp or dusty place Caution Do not expose the gateway device to moisture or water Caution If the gateway device is installed indoors make sure that the site is a dust free environment The site should provide for easy access to the ports of the gateway device This will make it easy for you to connect and disconnect cables as well as view the LEDs Warning The power source for the gateway unit should be located near the unit and should be easily accessible
44. it is a valid frame Invalid frames such as fragments or runts are discarded by the switch This insures that only valid frames are transmitted out the switch ports and that damaged frames are not propagated on your network 23 Chapter 1 Overview Back Pressure and Flow Control 24 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 For example if two end nodes are operating at different speeds the switch while transferring data between the end nodes might need to instruct the faster end node to stop transmitting data to allow the slower end node to catch up An example of this would be when a server operating at 100 Mbps 15 sending data to a workstation operating at only 10 Mbps How a switch signals an end node to stop transmitting data differs depending on the speed and duplex mode of the end node and switch port A twisted pair port operating at 100 Mbps and half duplex mode will stop an end node from transmitting data by forcing a collision A collision on an Ethernet network occurs when two end nodes attempt to transmit data using the same data link at the same time A collision causes end nodes to stop sending data When the switch needs to stop a 100 Mbps half duplex end node from transmitting data it forces collision on the data link which stops the end node When the switch is r
45. lated Safety Statements Lasersicherheitshinweise 1 2 A A Achtung Laserprodukt der Klasse 1 Achtung Blicken Sie nicht in den Laserstrahl Elektrische Sicherheitshinweise 56 3 10 11 A gt Achtung Um Stromschlage zu vermeiden darf die Abdeckung nicht entfernt werden Die Ausr stung enthalt keine benutzerwartbaren Teile Diese Einheit f hrt gefahrliche Spannungen und sollte nur durch einen ausgebildeten und qualifizierten Techniker ge ffnet werden Zur Vermeidung der M glichkeit von Stromschlagen ist die Stromversorgung des Produkts vor dem Anschlie en oder Abtrennen von LAN Kabeln zu unterbrechen Achtung Bei Gewittern und Blitzaktivit t d rfen keine Arbeiten an der Ausr stung oder an Kabeln erfolgen Achtung Das Stromkabel dient als Abtrennungselement Zum Abschalten der Ausr stung Stromkabel abziehen Achtung Ausr stung der Klasse Diese Ausr stung muss geerdet werden Der Stromstecker muss an eine vorschriftsmaRig geerdete Steckdose angeschlossen werden Eine inkorrekt verdrahtete Steckdose kann gef hrliche Spannungen auf zug ngliche Metallteile aufbringen Steckbare Ausr stung Die Steckdose sollte in der N he der Ausr stung installiert und leicht zug nglich sein Vorsicht Bel ftungs ffnungen d rfen nicht blockiert werden und m ssen zur K hlung durch die Umluft frei zug nglich sein Achtung Betriebstemperatur Dieses Produkt ist f r eine maximale Umgebungstemperat
46. lers entspricht Vorsicht Beim Installieren der Ausr stung in einem Rack ist darauf zu achten dass der f r den sicheren Betrieb der Ausr stung erforderliche Luftfluss nicht beeintr chtigt wird Achtung Es sollte eine zuverl ssige Erdung der rackmontierten Ausr stung aufrechterhalten werden Andere Versorgungsleitungen als direkte Verbindungen zu den Zweigschaltungen 2 Verwendung von Verl ngerungskabeln sollten besonders sorgf ltig erwogen werden AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Telekommunikationskonformit tshinweise 41 42 43 A Achtung Bei der Verwendung Ihrer Telefonausr stung sollten zur Reduzierung der Brand Stromschlag und Verletzungsgefahr stets grundsatzliche Sicherheitsrichtlinien einschlieRlich der folgenden befolgt werden Verwenden Sie dieses Produkt nicht in der Nahe von Wasser zum Beispiel in der Nahe einer Badewanne einer Waschschussel eines Sp lbeckens eines Waschbottichs in einem nassen Kellerraum oder in der Nahe eines Schwimmbads Vermeiden Sie die Verwendung eines Telefons mit Ausnahme eines schnurlosen Typs wahrend eines Gewitters Es konnte eine geringf gige Blitzschlaggefahr bestehen Verwenden Sie das Telefon nicht um das Austreten von Gas zu melden wenn es sich in der N he dieser Gefahrenquelle befindet Achtung Vergewissern Sie sich vor dem Anschluss der Telefonports TEL am Gateway Ger t dass die Verbindung des Geb udes
47. ment in an environment compatible with the manufacturer s maximum rated ambient temperature Tmra Caution Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised Warning Reliable earthing of rack mounted equipment should be maintained Particular attention should be given to supply connections other than direct connections to the branch circuits e g use of power strips AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Telecommunications Compliance Notices 41 42 43 A Warning When using your telephone equipment basic safety precautions should always be followed to reduce the risk of fire electronic shock and injury to persons including the following Do not use this product near water for example near a bathtub washbowl kitchen sink or laundry tub in a wet basement or near a swimming pool Avoid using a telephone other than a cordless type during an electrical storm There may be a remote risk of electric shock from lightning Do not use the telephone to report a gas leak in the vicinity of the leak Warning Before connecting to the telephony TEL ports on the gateway device make sure to disconnect the Public Switch Telephone Network PSTN feed to the premises Warning To reduce the risk of fire use only No 26 AWG or larger telecommunication line cord 55 Trans
48. mount screws included with the switch as shown in Figure 14 Figure 14 Attaching the Rack Mount Bracket 3 Repeat step 2 to attach the remaining bracket to the other side of the switch 4 Mount the switch in a 19 inch rack using appropriate screws not provided A Warning To prevent electric shock do not remove the cover No user serviceable parts inside This unit contains hazardous voltages and should only be opened by a trained and qualified technician To avoid the possibility of electric shock disconnect electric power to the product before connecting or disconnecting the LAN cables 473 A Warning Do not work on equipment or cables during periods of lightning activity 4 N Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord 2475 39 Chapter 2 Installation 40 Warning Class Equipment This equipment must be earthed The power plug must be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place hazardous voltages on accessible metal parts 4 6 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible 7 Caution Air vents must not be blocked and must have free access to the room ambient air for cooling 8 Warning Operating Temperature This product is designed for a maximum ambient temperature of 40 degree
49. nd AT GA900 8E Gigabit Ethernet Switches Installation Guide The AT GS900 8 switch has a single AC power supply socket on the back panel which features autoswitch AC inputs To power the switch on or off connect or disconnect the power cord provided with the switch The AT GS900 8E switch uses an external AC DC power adapter provided with the switch as shown in Figure 4 Figure 4 External Power Adapter for the AT GS900 8E Model Note For the power requirements refer to Power Specifications on page 47 21 Chapter 1 Overview Ethernet Switching Basics 22 MAC Address Table Duplex Mode 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 Every hardware device on your network has a unique MAC address This address is assigned to the device by the device s manufacturer For example when you install a Network Interface Card NIC in a computer so that you can connect it to the network the NIC already has a MAC address assigned to it by its manufacturer The MAC address table in the AT GS900 8 and AT GS900 8E switches can store up to 4 MAC addresses The switch uses the table to store the MAC addresses of the network end nodes connected to the ports along with the port number on which each address was learned A switch learns the MAC addresses of
50. nerg a el ctrica fiable al dispositivo Atenci n El chasis puede ser pesado y dif cil de levantar Allied Telesyn recomienda buscar ayuda para montar el chasis en un rack Atenci n No mire directamente los extremos del cable de fibra ptica ni los inspeccione con una lente ptica Atenci n Esta unidad puede tener m s de un cable de alimentaci n Para reducir el peligro de electrocuci n desconecte todos los cables de alimentaci n antes de manipular la unidad Atenci n Este equipo s lo debe ser instalado y manipulado por personal convenientemente formado y cualificado Atenci n La alimentaci n s lo debe proceder de una toma SELV conforme a la norma UEC 60950 No conecte la unidad a un banco centralizado de bater as CC El instalador debe suministrar cables que figuren en la lista UL de un m nimo de 18 AWG El instalador debe suministrar cables que figuren en la lista UL de un m nimo de 22 AWG Precauci n La alimentaci n del concentrador s lo debe proceder del adaptador Si la unidad se instala en un conjunto de rack cerrado o con varias unidades la temperatura ambiente de funcionamiento del entorno del rack puede ser superior a la de la sala El equipo se debe instalar en un entorno que no supere la temperatura ambiente nominal m xima Tmra indicada por el fabricante Precauci n La instalaci n en un rack debe realizarse de forma que se garantice el caudal de aire necesario para el buen funcionamiento
51. ongu pour fonctionner une temp rature ambiante maximum de 40 C Dans tous les pays installer le produit conform ment aux r glementations lectriques nationales et locales Avertissement Par mesure de s curit installer un coupe circuit d une intensit minimum de 15 amp re entre l quipement et la source d alimentation en courant continu Toujours connecter les fils l quipement de r seau local avant de les raccorder au coupe circuit Ne pas travailler sur des composants d alimentation CHAUDS pour viter tout risque d accident corporel par lectrocution Toujours s assurer que le coupe circuit est D SACTIV avant de connecter les fils au coupe circuit 12 13 14 15 16 17 18 19 20 21 22 23 24 25 gt gt gt AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Avertissement Respecter les recommandations pour d nuder les fils Un d nudage excessif risque de pr senter des risques pour la s curit en laissant le fil expos sur le bornier apr s l installation Avertissement Lors de l installation de cet quipement toujours s assurer que la connexion de terre de la structure est install e en premier et d connect e en dernier Avertissement V rifier la pr sence de fils de cuivre expos s sur le c ble d installation Si l installation a t correctement r alis e aucun fil de cuivre sortant du bornier ne doit tre expos To
52. opologies rere acide 25 Power Workgroup Topology tore itti titu Penn eigene idt Ent Dno Lee efe edad ean vt Pe dte 25 Collapsed Backbone 5 cort nn a nn esee ee 26 Chapter 2 Installation e ee DRE 27 Reviewing Safety Pr cautions reete tette T uk edet HE uH REIP MR 28 selecting a Site for the Switch nen aaa ariana 30 ebd sepan eiat une 31 Unpacking the Switch a2 32 Using a Switch on a Desktop ea ann titine 34 Installing the Power Cord Retaining Clip on the AT GS900 8L Switch 35 Mounting a Switch on the Wall ini Me 37 Installing aSWit h in a RACK 39 Wiring the Switch A un ogi eden deca NS 41 Powering On pei Ad edam eed meu 42 Powering an AT GS900 8 5 42 Powering AT GS900 8E 5 43 Warranty oa a A iba id IAT LIE iii aa 44 Chapter 3 Troubleshooting a ia 45 Appendix A Technical Specifications 47 Physical Specifications id cias Environmental Specifications Power Specifications Em Safety and Electromagnetic Emissions Certifications 47 Connectors and PortPINQU S coimas odds 48 Appendix B Translated Safety Statements
53. ori riportati sull etichetta dell apparecchiatura Attenzione Se si sostituisce la batteria con un tipo di batteria non corretto si rischia di provocare un esplosione Sostituire la batteria solo con una dello stesso tipo o di un tipo equivalente raccomandato dal produttore Eliminare le batterie usate secondo le istruzioni del produttore Avvertenza In caso di alimentazione CC centralizzata installare l apparecchiatura solo in aree ad accesso limitato Se l unit ha un alimentazione CC centralizzata necessario un cavo di tipo TC approvato UL valutato a 600 V e 90 C con tre conduttori di minimo 14 AWG Avvertenza montaggio dell apparecchiatura in rack deve essere effettuato in modo da evitare di provocare rischi dovuti a un carico meccanico irregolare 69 Translated Safety Statements 70 28 29 30 31 32 33 34 35 36 37 38 39 40 A Avvertenza Rimuovere tutti gli oggetti di metallo ad esempio anelli e orologi prima di installare o estrarre una scheda di linea da un chassis acceso Utilizzare circuiti di alimentazione o alimentatori dedicati per fornire energia elettrica al dispositivo in modo affidabile Avvertenza chassis potrebbe risultare pesante e scomodo da sollevare Allied Telesyn consiglia di richiedere assistenza per il montaggio del chassis in rack Avvertenza Non osservare le estremita dei cavi a fibre ottiche direttamente oppure attraverso una len
54. pable of 10 megabits per second Mbps 100 Mbps and 1000 Mbps speeds The ports are IEEE 802 3u Auto Negotiation compliant With Auto Negotiation the switch automatically matches the highest possible common speed between each switch port and each end node For example if an end node is capable of only 10 Mbps the switch sets the port connected to the end node to 10 Mbps Each twisted pair port on the switch can operate in either half or full duplex mode The twisted pair ports are IEEE 802 3u compliant and will Auto Negotiate the duplex mode setting Note In order for the switch to set the duplex mode for each port correctly the end nodes that you connect to the switch ports should also use Auto Negotiation Otherwise a duplex mode mismatch can occur affecting network performance For further information refer to Duplex Mode on page 22 Each twisted pair port has a maximum operating distance of 100 m 328 feet For 10 Mbps operation Category 3 or better 100 ohm shielded or unshielded twisted pair cabling is required For 100 or 1000 Mbps operation Category 5 and Enhanced Category 5 5E 100 ohm shielded or unshielded twisted pair cabling is required The twisted pair ports are auto MDI They automatically configure themselves as either or MDI X This feature allows you to use either straight through or crossover twisted pair cables to connect devices to the ports AT GA900 8 and AT GA900 8E Gigabit Ethernet
55. r Adapter oot en dde 43 RJ 45 Connector and Port Pin 48 Figures Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Safety Symbols miii J 12 System and Port LED Descriptions imisi ea aaa 19 Twisted Pair Cabling and DistanCes movia die 31 MDI Pin Signals 10Base T or 100 48 MDI X Pin Signals 10Base T or 100Base TX sn 48 RJ 45 1000Base T Connector 49 Tables Preface This guide contains instructions on how to configure and maintain the AT GS900 8 and AT GS900 8E switches This preface contains the following sections Safety Symbols Used this Document on page 12 O Where to Find Web based Guides on page 13 0 Contacting Allied Telesyn on page 14 Preface Safety Symbols Used in this Document This document uses the safety symbols defined in Table 1 Table 1 Safety Symbols Symbol Meaning Description Caution Performing or omitting a specific action may A result in equipment damage or loss of data Warning Performing or omitting a specific action may result in electrical shock AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Where to Find Web based Guides The installation and user
56. reisen auf den berstromschutz und die Versorgungskabel sollten erwogen werden In diesem Zusammenhang sollten auch die auf dem Typenschild der Ausr stung angegebenen Nennwerte entsprechend ber cksichtigt werden Vorsicht Beim Ersetzen der Batterie durch einen inkorrekten Typ besteht Explosionsgefahr Die Batterie sollte nur durch denselben oder einen gleichwertigen vom Hersteller empfohlenen Typ ersetzt werden Die Batterien sind gem der Anleitungen des Herstellers zu entsorgen Achtung Bei einem zentralisierten Gleichstromanschluss darf die Installation nur in einem Bereich mit gesichertem Zugang erfolgen 57 Translated Safety Statements 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 58 Bei der Versorgung der Einheit durch zentralisierten Gleichstrom ist Tray Kabel zum Anschluss der Stromquelle erforderlich Das Tray Kabel muss ein UL gelistetes Typ TC Tray Kabel mit einer Nennspannung von 600 V und einer Nenntemperatur von 90 Grad Celsius mit drei Leitern und mindestens 14 sein Achtung Bei der Rackmontage der Ausr stung ist darauf zu achten dass keine Gefahrenbedingung durch ungleichm ige mechanische Belastung geschaffen wird Achtung Vor dem Installieren oder Ausbauen einer Leitungskarte in das bzw aus dem Chassis einer eingeschalteten Einheit ist aller metallischer Schmuck wie zum Beispiel Ringe oder Uhren zu entfernen Zur zuverl ssigen St
57. romversorgung des Ger ts sollte ein dedizierter Stromkreis oder Netzfilter und Stabilisator Power Conditioner verwendet werden Achtung Das Chassis kann schwer und schwierig zu heben sein Allied Telesyn empfiehlt bei der Rackmontage des Chassis Hilfspersonal heranzuziehen Achtung Sehen Sie nicht direkt auf die Enden der Faseroptikkabel und inspizieren Sie die Kabelenden nicht mit einer optischen Linse Achtung An dieser Einheit kann mehr als ein Stromkabel vorhanden sein Vor Wartungsarbeiten sollten zur Reduzierung des Stromschlagrisikos alle Stromkabel abgetrennt werden Achtung Das Installieren und der Austausch dieser Ausr stung ist nur ausgebildetem und qualifiziertem Personal gestattet Achtung Der Stromeingang darf nur ber eine SELV Quelle gem IEC 60950 erfolgen Eine zentralisierte Gleichstrom Batteriebank darf nicht angeschlossen werden UL anerkannte Kabel mit mindestens 18 AWG sollten vom Installateur bereitgestellt werden UL anerkannte Kabel mit mindestens 22 AWG sollten vom Installateur bereitgestellt werden Vorsicht Die Stromversorgung des Hub darf nur ber den Adapter erfolgen Bei der Installation in einer geschlossenen oder einer mehrere Einheiten umfassenden Anordnung kann die Temperatur der Betriebsumgebung die Raumtemperatur bersteigen Es sollte deshalb darauf geachtet werden das die Ausr stung in einer Umgebung installiert wird die der maximalen Nennumgebungstemperatur Tmra des Herstel
58. s a9 Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring Appropriate consideration of equipment nameplate ratings should be used when addressing this concern 4723 Warning Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading 4 27 If installed in a closed or multi unit rack assembly the operating ambient temperature of the rack environment may be greater than the room ambient temperature Therefore consideration should be given to installing the equipment in an environment compatible with the manufacturer s maximum rated ambient temperature Tmra amp 38 Caution Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised a 39 Warning Reliable earthing of rack mounted equipment should be maintained Particular attention should be given to supply connections other than direct connections to the branch circuits e g use of power strips 4 40 Wiring the Switch AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide To connect the twisted cables to the RJ 45 ports on the AT GS900 8 or AT GS900 8E switch perform the following procedure 1 2 Plug the
59. sis peut tre lourd et difficile soulever Allied Telesyn recommande de demander de l aide pour installer le ch ssis dans un rack Avertissement Ne pas observer directement l extr mit des c bles en fibres optiques ou les inspecter l aide d un objectif optique Avertissement Cette unit peut tre quip e de plusieurs cordons d alimentation Pour r duire les risques d lectrocution d brancher tous les cordons d alimentation avant de proc der la maintenance de l unit Avertissement Seul le personnel qualifi et comp tent est autoris installer ou remplacer cet quipement Avertissement L alimentation doit tre fournie par une source SELV uniquement conform ment la norme IEC 60950 Ne pas connecter une rang e de batteries c c centralis e L installateur doit fournir des fils de 18 AWG agr s UL L installateur doit fournir des fils de 22 AWG agr s UL Attention Le concentrateur doit uniquement tre aliment par l adaptateur Si l quipement est install dans un rack ferm ou plusieurs unit s la temp rature ambiante de fonctionnement du rack risque d tre sup rieure la temp rature ambiante de la pi ce Il convient d en tenir compte avant d installer l quipement dans un environnement conforme la temp rature ambiante maximum du constructeur Attention R duction de la circulation d air l installation de l quipement dans rack ne doit pas compromettre la
60. te ottica Avvertenza Questa unita potrebbe disporre di pi di alimentazione Per ridurre il rischio di scosse elettriche scollegare tutti i cavi di alimentazione prima di iniziare la manutenzione dell unit Avvertenza Solo personale esperto e qualificato pu installare o sostituire l apparecchiatura Avvertenza L alimentazione deve essere fornita da una fonte SELV come specificato nello standard IEC 60950 Non collegare il dispositivo a una batteria CC centralizzata cavi riconosciuti UL di minimo 18 AWG non sono forniti in dotazione cavi riconosciuti UL di minimo 22 AWG non sono forniti in dotazione Attenzione L hub deve essere alimentato solo mediante l adattatore Se l installazione posizionata in un ambiente chiuso o in rack multi unit la temperatura operativa del rack potrebbe essere maggiore della temperatura ambiente Per questo motivo installare l apparecchiatura in un ambiente compatibile con la temperatura ambiente massima stimata dal produttore Tmra Attenzione L installazione dell apparecchiatura in rack dovrebbe essere effettuata in modo che il flusso d aria richiesto per un funzionamento sicuro non venga compromesso Attenzione necessario mantenere la messa a terra dell apparecchiatura montata in rack Prestare particolare attenzione ai collegamenti di alimentazione non CC ai circuiti periferici ad esempio all uso dei cavi di alimentazione AT GA900 8 and AT GA900 8E Gigabit Ethernet S
61. the end nodes by examining the source address of each packet received on a port It adds the address and port on which the packet was received to the MAC table if the address had not already been entered in the table The result is a table that contains all the MAC addresses of the devices that are connected to the switch s ports and the port number where each address was learned When the switch receives a packet it also examines the destination address and by referring to its MAC address table determines the port on which the destination end node is connected It then forwards the packet to the appropriate port and on to the end node This increases network bandwidth by limiting each frame to the appropriate port when the intended end node is located freeing the other switch ports for receiving and transmitting data If the switch receives a packet with a destination address that is not in the MAC address table it floods the packet to all the ports on the switch If the ports have been grouped into virtual LANs the switch floods the packet only to those ports which belong to the same VLAN as the port on which the packet was received This prevents packets from being forwarded into inappropriate LAN segments decreasing network security When the destination end node responds the switch adds its MAC address and port number to the table If the switch receives a packet with a destination address that is on the same port on which the packet
62. thin the required levels for your region Verify that the LINK ACT LED for each port is ON If a LINK ACT LED is OFF do the following o Verify that the end node connected to the port is powered on and is operating properly 45 Chapter 3 Troubleshooting 46 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 Verify that you are using the appropriate category of twisted pair cable Category 3 or better for 10 Mbps operation and Category 5 and Category 5E for 100 and 1000 Mbps operation Note A 1000Base connection may require five to ten seconds to establish a link Appendix Technical Specifications Physical Specifications Dimensions Weight Environmental Specifications AT GS900 8 249 mm x 114 mm x 38 mm 9 80 in x 4 49 in x 1 5 in AT GS900 8E 195 mm x 114 mm x 38 mm 7 68 in x 4 49 in x 1 5 in AT GS900 8 900 g 1 98 lbs AT GS900 8bE 650 g 1 43 Ibs Operating Temperature Storage Temperature Operating Humidity Storage Humidity Operating Altitude Range Power Specifications 0 40 C 32 F to 104 25 C to 70 C 13 to 158 596 to 9096 non condensing 596 to 9596 non condensing Up to 3 000 m 9 843 ft Input Supply Voltage Power Consumption AT GS900 8 100 120 VAC AT GS900 8E 120 VAC US
63. tion After installing your switch you can register your product by completing the enclosed warranty card and sending it to Allied Telesyn 44 Chapter 3 Troubleshooting This chapter contains information on how to troubleshoot the switch in the event that a problem occurs Note If you need further assistance please contact Allied Telesyn Technical Support Refer to Contacting Allied Telesyn on page 14 AT GS900 8 switch Check the POWER LED on the front of the switch If the LED is off indicating that the unit is not receiving power do the following O Ensure that the power cord is securely connected to the power source and to the AC connector on the back panel of the switch O Verify that the power outlet has power by connecting another device to it Try connecting the unit to another power source Try using a different power cord Verify that the voltage from the power source is within the required levels for your region AT GS900 8E switch Check the POWER LED on the front of the switch If the LED is off indicating that the unit is not receiving power do the following Ensure that the power adapter is securely connected to the power source and to the power connector on the back panel of the switch O Verify that the power outlet has power by connecting another device to it D Try connecting the unit to another power source Verify that the voltage from the power source is wi
64. ttention should be given to supply connections other than direct connections to the branch circuits e g use of power strips 40 29 Chapter 2 Installation Selecting a Site for the Switch 30 Observe the following requirements when choosing a site for your switch uuu 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 The power outlet for the switch should be located near the unit and should be easily accessible The site should provide for easy access to the ports on the front ofthe switch This will make it easy for you to connect and disconnect cables as well as view the switch s LEDs To allow proper cooling of the switch air flow around the unit and through its vents on the side and rear should not be restricted Do not place objects on top of the switch Do not expose the switch to moisture or water Ensure that the site is a dust free environment You should use dedicated power circuits or power conditioners to supply reliable electrical power to the network devices AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Cabling Table 3 contains the cabling specifications for the twisted p
65. twisted pair data cables to the RJ 45 ports on the switch as shown in Figure 15 IS PE Figure 15 Connecting the Twisted Pair Data Cables When connecting a twisted pair cable to a port observe the following guidelines An 45 connector should snugly into the port on the switch The tab on the connector should lock the connector into place The ports on the switch are auto MDI MDI X when operating at 10 100 or 1000 Mbps You can use either a straight through or crossover twisted pair cable to connect any type of network device to a port on the switch when operating at either 10 100 or 1000 Mbps The network should not contain data loops which can adversely affect network performance A data loop exists when two or more network devices can communicate with each other over more than one data path Connect the other end of the twisted pair cable to a port in the end node 41 Chapter 2 Installation Powering On a Switch For power requirements refer to Power Specifications on page 47 Powering On an power an AT GS900 8 switch perform the following procedure AT GS900 8 1 Position the power cord retaining clip in the up position as shown in Switch Figure 16 Figure 16 Power Cord Retaining Clip in the Up Position 2 Plug the power cord into the AC power connector on the back of the switch as shown in Figure 17 Figure 17 Plugging in the AC Power Cord 3
66. unting a Switch on the Wall on page 37 Installing a Switch in a Rack on page 39 Wiring the Switch on page 41 Powering On a Switch on page 42 Warranty Registration on page 44 27 Chapter 2 Installation Reviewing Safety Precautions Please review the following safety precautions before you begin to install the chassis or any of its components Note When you see the go to Appendix B Translated Safety Statements on page 51 for translated safety statements A Warning To prevent electric shock do not remove the cover No user serviceable parts inside This unit contains hazardous voltages and should only be opened by a trained and qualified technician To avoid the possibility of electric shock disconnect electric power to the product before connecting or disconnecting the LAN cables 2473 A Warning Do not work on equipment or cables during periods of lightning activity 4 4 Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord 75 gt A Warning Class Equipment This equipment must be earthed The power plug must be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place hazardous voltages on accessible metal parts 4 6 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible 2 7 A Caution Air
67. ur von 40 konzipiert Alle L nder Dieses Produkt muss entsprechend den rtlichen und nationalen Elektrizit tsvorschriften installiert werden Achtung Als Sicherheitsvorkehrung sollte ein berlastschalter mit einem minimalen Nennwert von 15 Ampere zwischen der Ausr stung und der Gleichstromversorgung installiert werden Vor dem Anschluss der Kabel am berlastschalter sollten stets zuerst die Kabel an die LAN Ausr stung angeschlossen werden Zur Vermeidung von Verletzungen in Folge von Stromschlag sollte nicht mit SPANNUNGSF HRENDEN Versorgungen gearbeitet werden Vor dem Anschluss der Kabel an den berlastschalter ist stets Sorge zu tragen dass der berlastschalter AUSGESCHALTET ist 12 13 14 15 16 17 18 19 20 21 22 23 24 25 gt gt Bb AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Achtung Nicht mehr als die empfohlene Kabell nge abisolieren Durch das Abisolieren von mehr als der empfohlenen L nge k nnen gef hrliche blanke Dr hte aus dem Anschlussblock hervorragen Achtung Beim Installieren dieser Ausr stung ist stets darauf zu achten dass die Rahmenerdung zuerst angeschlossen und zuletzt abgetrennt wird Achtung Das installierte Kabel muss auf etwaige freiliegende Kupferlitzen berpr ft werden Bei der korrekten Installation sollten keine freiliegenden Kupferdrahtlitzen aus dem Anschlussblock herausragen Jegliche freiliegende Dr hte
68. ut fil expos peut exposer les personnes qui y touchent une tension dangereuse Ce syst me fonctionne avec les m canismes c c de mise la terre n gative ou positive Avertissement Seul le personnel qualifi et comp tent est autoris installer ou remplacer cet quipement Attention Les supports de montage fournis doivent tre utilis s pour fixer l quipement au mur Attention Ne pas installer l quipement au soleil ni dans un endroit humide ou poussi reux Attention Ne pas exposer le p riph rique servant de passerelle l eau ou l humidit Attention Si le p riph rique servant de passerelle est install l int rieur s assurer qu il se trouve dans en endroit non poussi reux Le site doit offrir un acc s ais au port du p riph rique servant de passerelle afin de faciliter la connexion et la d connexion des c bles tout en permettant d observer ais ment les voyants Avertissement La source d alimentation d une unit servant de passerelle doit se situer proximit de l unit et rester facilement accessible Attention Pour permettre le refroidissement correct de l unit servant de passerelle s assurer que l air circule librement autour de l unit et travers les ailettes du dissipateur thermique l arri re Surcharge du circuit En connectant l quipement au circuit d alimentation tenir compte des r percussions ventuelles d une surcharge du circuit sur la protection contre
69. vents must not be blocked and must have free access to the room ambient air for cooling 4 8 Warning Operating Temperature This product is designed for maximum ambient temperature of 40 degrees a9 All Countries Install product in accordance with local and National Electrical Codes amp 10 28 AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring Appropriate consideration of equipment nameplate ratings should be used when addressing this concern amp 23 Warning Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading 727 If installed in a closed or multi unit rack assembly the operating ambient temperature of the rack environment may be greater than the room ambient temperature Therefore consideration should be given to installing the equipment in an environment compatible with the manufacturer s maximum rated ambient temperature Tmra amp 38 Caution Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised 39 Warning Reliable earthing of rack mounted equipment should be maintained Particular a
70. was received it discards the packet without forwarding it on to any port Since both the source end node and the destination end node for the packet are located on the same port on the switch there is no reason for the switch to forward the packet Duplex mode refers to how an end node receives and transmits data If an Store and Forward AT GA900 8 and AT GA900 8E Gigabit Ethernet Switches Installation Guide 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 Naturally an end node capable of operating in full duplex can handle data much faster than an end node that can only operate in half duplex mode The twisted pair ports on the AT GS900 8 and AT GS900 8E switches can operate in either half or full duplex mode They are IEEE 802 3u compliant and use Auto Negotiation to set the duplex mode setting for you automatically For Auto Negotiation to operate properly on a switch the end nodes connected to the switch should also use Auto Negotiation If an end node does not have this feature and has a fixed duplex mode of full duplex the result will be a duplex mode mismatch between the end node and a switch port A port on the Gigabit Ethernet switch connected to an end node with a fixed duplex mode of full duplex will operate at only
71. witches Installation Guide Indicazioni per la conformit con le norme sulle telecomunicazioni 41 A Avvertenza Quando si utilizza l apparecchiatura telefonica per ridurre il rischio di incendio scosse elettriche e danni alle persone necessario seguire alcune precauzioni di base per la sicurezza ad esempio Non utilizzare il prodotto in prossimit di acqua ad esempio vicino a vasche da bagno lavabi lavandini piscine oppure in ambienti umidi Non utilizzare un telefono di tipo non cordless durante un temporale esiste il rischio remoto che i lampi provochino scosse elettriche Per segnalare una perdita di gas non utilizzare il telefono in prossimit della perdita 42 A Avvertenza Prima di utilizzare le porte per il collegamento telefonico TEL del dispositivo gateway verificare che la rete telefonica pubblica PSTN sia disconnessa 43 Per ridurre il rischio di incendi utilizzare solo un cavo di linea telefonica di 26 AWG o superiore 71 Translated Safety Statements 2 A A 1 10 11 12 72 gt
72. zum ffentlichen Telefonnetz PTSN unterbrochen ist Achtung Verwenden Sie zur Reduzierung der Brandgefahr nur Telekommunikationsleitungskabel Nr 26 AWG oder st rkeres Kabel 59 Translated Safety Statements Avisos de seguridad l ser 1 2 A A Atenci n Producto l ser de clase 1 Atenci n No mire el rayo l ser Avisos de seguridad el ctricas 60 10 11 12 A Atenci n Para evitar la electrocuci n quite tapa La unidad no contiene piezas que pueda reparar el usuario Esta unidad contiene tensiones peligrosas y s lo la debe abrir un t cnico convenientemente formado y cualificado Para evitar todo riesgo de electrocuci n desconecte la alimentaci n el ctrica del producto antes de conectar o desconectar los cables de la LAN Atenci n No manipule el equipo ni los cables mientras haya rayos en la atm sfera Atenci n El cable de alimentaci n se utiliza como dispositivo de desconexi n Para desactivar el equipo desconecte el cable de alimentaci n Atenci n Equipo de Clase Este equipo debe conectarse a tierra La clavija de alimentaci n se debe enchufar a una toma el ctrica convenientemente conectada a tierra El uso de una toma mal conectada podr a provocar tensiones peligrosas en las piezas met licas accesibles para el usuario El equipo requiere conexi n La toma el ctrica debe estar situada cerca del equipo y ser de f cil acceso Pre

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