Fast Ethernet Switch ® AT-FS717FC/SC Installation Guide PN 613-000560 Rev C
Copyright 2006 Allied Telesis, Inc. www.alliedtelesis.com All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners. Allied Telesis, Inc. reserves the right to make changes in specifications and other information contained in this document without prior written notice.
Electrical Safety and Emissions Standards This product meets the following standards. U.S. Federal Communications Commission Declaration of Conformity Manufacturer Name: Allied Telesis, Inc. Declares that the product: Fast Ethernet Switch Model Number: AT-FS717FC/SC This product complies with FCC Part 15B, Class B Limits: This device complies with part 15 of the FCC Rules.
Electrical Safety and Emissions Standards EMI FCC Class B, CISPR 22 Class B, EN55022 Class B, C-TICK, CE Immunity EN55024 Electrical Safety UL 60950 (CULUS), EN60950 (TUV) Laser EN60825 This is a “Class 1 LED Product”.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Translated Safety Statements Important: Appendix B contains translated safety statements for installing this equipment. When you see the , go to Appendix B for the translated safety statement in your language. Wichtig: Anhang B enthält übersetzte Sicherheitshinweise für die Installation dieses Geräts. Wenn Sie sehen, schlagen Sie in Anhang B den übersetzten Sicherheitshinweis in Ihrer Sprache nach.
Contents Electrical Safety and Emissions Standards ................................................................................................................... 3 Preface ............................................................................................................................................................................... 8 How This Guide is Organized ................................................................................................................................
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Appendix A Technical Specifications ................................................................................................................................................ 41 Physical Specifications ...................................................................................................................................................... 41 Environmental Specifications....................................................................
Preface This guide contains the hardware installation instructions for the AT-FS717FC/SC Fast Ethernet switch.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 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.
Preface Contacting Allied Telesis This section provides Allied Telesis contact information for technical support as well as sales or corporate information. Online Support You can request technical support online by accessing the Allied Telesis Knowledge Base from the following web site: http://www.alliedtelesis.com/support/kb.aspx. You can use the Knowledge Base to submit questions to our technical support staff and review answers to previously asked questions.
Chapter 1 Product Description This chapter contains the follows sections: “Overview” on page 12 “Key Features” on page 13 “Standards” on page 13 “Hardware Feature Description” on page 14 “A Few Ethernet Switching Basics” on page 18 “Network Topologies” on page 21 11
Chapter 1: Product Description Overview The AT-FS717FC/SC switch is an unmanaged five-port Fast Ethernet switch. This switch offers a range of features and capabilities that can be used in a variety of network configurations and topologies, such as: Creating small workgroups with dedicated 10 megabits per second (Mbps) and 100 Mbps links to your network devices, such as workstations, servers, printers, and routers.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide The AT-FS717FC/SC switch can be used on a desktop or mounted on a wall. The switch is easy to install and does not require software configuration or management.
Chapter 1: Product Description Hardware Feature Description The below sections describe the hardware features of the AT-FS717FC/SC Fast Ethernet switch: 10/100Base-TX Twisted Pair Ports Sixteen 10/100 Mbps twisted pair ports One 100 Mbps fiber optic port One duplex mode switch (for fiber optic port only) System and port LEDs AC power supply The AT-FS717FC/SC Fast Ethernet switch features Sixteen twisted pair ports.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Type of Cabling For 10 Mbps operation, Category 3 or better 100 ohm shielded or unshielded twisted pair cabling is required. For 100 Mbps operation, Category 5 and Enhanced Category 5 (5E) 100 ohm shielded or unshielded twisted pair cabling is required. Maximum Distance Each twisted pair port has a maximum operating distance of 100 meters (328 feet). Auto MDI/MDI-X All of the twisted pair ports on the switch are auto-MDI and IEEE 802.3abcompatible.
Chapter 1: Product Description Cabling There are two basic types of fiber optic cabling used in the Ethernet networks: multi-mode fiber and single-mode fiber. Multimode fiber is for short distances, typically no more than 2 kilometers (1.2 miles). Singlemode is for longer distances. The fiber optic port on the AT-FS717FC/SC switch has a maximum distance of 1 kilometers (1.2 miles), and is designed to be used with either 54/125 or 60/125 micron multi-mode cable.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide AC Power Connector The AT-FS717FC/SC Fast Ethernet switch has a single AC power supply socket on the back panel, which has an auto-switch AC input. Refer to Appendix A, “Technical Specifications” on page 41, for the input voltage specifications. To power ON or OFF the switch, you connect or disconnect the power cord.
Chapter 1: Product Description 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.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 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 endnode can both receive and transmit data simultaneously, the end-node is said to be operating in full-duplex mode.
Chapter 1: Product Description A port operating in full-duplex mode uses PAUSE frames, as specified in the IEEE 802.3x standard, to stop the transmission of data from an endnode. Whenever the switch wants an end-node to stop transmitting data, it issues this frame. The frame instructs the end-node to cease transmission for a period of time specified within the frame. The switch continues to issue PAUSE frames until it is ready again to receive data from the endnode. This is referred to as flow control.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Network Topologies The AT-FS717FC/SC switch can be used in a variety of network topologies, such as a stand alone, Ethernet hub, and backbone. Each type of topologies is described below. Standalone Topology Figure 3 illustrates the Standalone topology where each end-node is connected directly to a 10/100Base-TX port on an AT-FS717FC/SC switch. This gives each end-node a dedicated 10 Mbps or 100 Mbps link.
Chapter 1: Product Description Ethernet Hub Topology Figure 4 illustrates the Ethernet Hub topology where four 10/100 Mbps Ethernet hubs are connected together using an AT-FS717FC/SC. With this topology, the switch functions as a bridge between the different workgroups by controlling the flow of data between the workgroups. The switch transfers an Ethernet frame from hub to hub only when the destination node for the frame is on a different hub than the node that originated the frame.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Backbone Topology Figure 5 illustrates the Backbone topology where several Fast Ethernet switches in the same network are connected together to form an integrated network. In this topology, the fiber optic ports can be extremely useful. You can use the ports to create a fiber optic backbone. With a maximum operating distance of 2 kilometers (1.2 miles), the ports can be used to connect together switches that are physically apart.
Chapter 1: Product Description Invalid Loop Topology In designing a network topology, be sure your topology does not contain any loops. A loop exists when there is more than one path between any two end-nodes in your network. An invalid loop can result in what is referred to as broadcast storms, where Ethernet frames caught in repeating cycles can needlessly consume network bandwidth and ‘hangup’ the entire network. An example of an invalid loop topology is shown in Figure 6.
Chapter 2 Installation This chapter contains the following sections: “Reviewing Safety Precautions” on page 26 “Selecting a Site for the Switch” on page 27 “Planning the Installation” on page 28 “Unpacking the Switch” on page 29 “Installing the Switch on a Table or Desktop” on page 30 “Installing the Switch in a Rack” on page 32 “Wall-Mounting the Switch” on page 33 “Cabling an AT-FS717FC/SC Switch” on page 35 “Powering On the Switch” on page 39 25
Chapter 2: 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 Safety Statements” on page 45 for translated safety statements in your language. Warning To prevent electric shock, do not remove the cover. No userserviceable parts inside. This unit contains hazardous voltages and should only be opened by a trained and qualified technician.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Selecting a Site for the Switch Observe the following requirements when choosing a site for the AT-FS717FC/SC Fast Ethernet switch: If you plan to install the switch in an equipment rack, be sure 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.
Chapter 2: Installation Planning the Installation Table 2 contains the cabling specifications for the twisted pair ports. Table 2.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Unpacking the Switch To unpack an AT-FS717FC/SC 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 Telesis. 2. Place the switch on a level, secure surface. 3. Verify that the following hardware components are included in your switch package.
Chapter 2: Installation Installing the Switch on a Table or Desktop To install the switch on a table or desktop, perform the following procedure: 1. Remove all the items from the packaging and store the packaging material in a safe place. In the event a problem occurs and you need to return the unit, please use as much of the original shipping material as possible. 2. Attach the four self-adhesive rubber feet to the bottom of the switch, as shown in Figure 7. 1129 Figure 7. Attaching the Rubber Feet 3.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Warning Power cord is used as a disconnection device: To de-energize equipment, disconnect the power cord. 5 6. Verify that the POWER LED is green. If the LED is OFF, refer to “Installation” on page 25 for instructions. Note The switch perform a self-diagnostic test upon power up. This takes about 20 seconds to complete. 7. Power ON the end-nodes connected to the switch. 8. Check that all the LINK/ACT LEDs are green.
Chapter 2: Installation Installing the Switch in a Rack Perform the following procedure to install the switch in a standard 19-inch rack. 1. If attached, remove the rubber feet, data cables, and power cord from the switch. 2. Attach the two mounting brackets (provided) to the sides of the switch using the bracketmounting screws (provided), as shown in Figure 8. 1135 Figure 8. Attaching Brackets for Rackmounting 3.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Wall-Mounting the Switch The switch can be mounted horizontally on a wall using the two keyhole slots in the bottom of the switch. To mount an AT-FS717FC/SC switch onto a wall, perform the following procedure: 1. Remove all equipment from the package and store the packaging material in a safe place. 2. If attached, remove the rubber feet, data cables, and power cord from the switch. 3. Select a wall location for the switch. 4.
Chapter 2: Installation 7. Position and hang the switch onto the wall using the two keyhole slots located in the bottom of the switch, as illustrated in Figure 11. 1137 Figure 11. Wallmounting an AT-FS717FC/SC Switch 8. Make sure that the switch is securely mounted onto the wall. The switch is now ready for cabling.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Cabling an AT-FS717FC/SC Switch Perform the following procedures to connect to the ports that come with the AT-FS717FS/SC switch. Cabling a Twisted Pair Port 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. The tab on the connector should lock the connector into place.
Chapter 2: Installation Cabling a Fiber Optic Port When attaching a fiber optic cable, be sure to observe the following guidelines: Be sure that the cable connector is firmly locked into place in the port. You should verify that you are using the appropriate type of fiber optic cabling. You should verify that the operating specifications of the fiber optic port are compatible with the fiber optic port on the remote end-node.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Cabling a Dual SC Connector To connect a fiber optic cable to a dual SC connector, perform the following procedure: Warning Class 1 laser product. 1 Warning Do not stare into the laser beam. 2 1. Remove the dust cover from the fiber optic port, as shown in Figure 14. 1132 Figure 14. Removing the Dust Cover from a Dual SC Fiber Optic Port 2. Connect the appropriate optical cable to the port, as shown in Figure 15. 1133 Figure 15.
Chapter 2: Installation Setting the Duplex Mode Manually To manually change the duplex mode of the fiber optic port on the AT-FS717FC/SC switch, perform the following procedure: 1. Locate the duplex mode switch on the front panel of the chassis. 2. Use the tip of a pen to manually change the duplex mode switch to half- or full-duplex mode, as shown in Figure 16. 1130 Figure 16.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Powering On the Switch The switch is ready for network operations. To apply power to the AT-FS717FC/SC switch, perform the following procedure: 1. Apply AC power to the switch by plugging the power cord into the AC power connector on the back panel of the unit, as shown in Figure 17. Warning Power cord is used as a disconnection device: To de-energize equipment, disconnect the power cord. 5 Caution Use only safety licensed power supply cord.
Chapter 3 Troubleshooting This chapter contains information on how to troubleshoot the switch in the event a problem occurs. Note If you are still unable to resolve the problem after following the instructions in this chapter, contact Allied Telesis Technical Support for assistance. Refer to “Contacting Allied Telesis” on page 10. Check the POWER LED on the front of the switch.
Appendix A Technical Specifications Physical Specifications Dimensions: (W x D x H) 294 mm x 116 mm x 41 mm (11.57 in x 4.57 in x 1.61 in) Weight: .93 kg (2.
Appendix A: Technical Specifications Safety and Electromagnetic Emissions Certifications EMI FCC Class B, CISPR 22 Class B, EN55022 Class B, C-TICK, CE Immunity EN55024 Electrical Safety UL 60950 (CULUS), EN60950 (TUV) Laser EN60825 This is a “Class 1 LED Product”. Compliance Standards IEEE 802.3 – Ethernet IEEE 802.3i – 10Base-T IEEE 802.3u – 100Base-TX IEEE 802.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide RJ-45 Twisted Pair Port Connectors This section lists the connectors and connector pinouts for the AT-FS717FC/SC Fast Ethernet switch and its components. Figure 19 illustrates the pin layout to an RJ-45 connector and port. 1 8 8 1 Figure 19. 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. Table 3.
Appendix A: Technical Specifications SC Type Connector Dual SC Connector The fiber optic cable, as shown in Figure 20, is used to connect to the dual SC connector in the AT-CM717FC/SC switch. Figure 20.
Appendix B Translated Safety Statements 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. Importante: Este apéndice contiene traducciones en múltiples idiomas de los mensajes de seguridad incluidos en esta guía. Important: Cette annexe contient la traduction en plusieurs langues des instructions de sécurité figurant dans ce guide.
Appendix B: Translated Safety Statements Laser Safety Notices 1 Warning: Class 1 laser product. 2 Warning: Do not stare into the laser beam. Electrical Safety Notices 3 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.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 14 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. 15 This system works with positive grounded or negative grounded DC systems.
Appendix B: Translated Safety Statements 27 Warning: Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading. 28 Warning: Remove all metal jewelry, such as rings and watches, before installing or removing a line card from a powered-on chassis. 29 Use dedicated power circuits or power conditioners to supply reliable electrical power to the device. 30 Warning: The chassis may be heavy and awkward to lift.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Telecommunications Compliance Notices 41 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.
Appendix B: Translated Safety Statements Lasersicherheitshinweise 1 Achtung: Laserprodukt der Klasse 1. 2 Achtung: Blicken Sie nicht in den Laserstrahl. Elektrische Sicherheitshinweise 3 Achtung: Um Stromschläge zu vermeiden, darf die Abdeckung nicht entfernt werden. Die Ausrüstung enthält keine benutzerwartbaren Teile. Diese Einheit führt gefährliche Spannungen und sollte nur durch einen ausgebildeten und qualifizierten Techniker geöffnet werden.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 12 Achtung: Nicht mehr als die empfohlene Kabellänge abisolieren. Durch das Abisolieren von mehr als der empfohlenen Länge können gefährliche blanke Drähte aus dem Anschlussblock hervorragen. 13 Achtung: Beim Installieren dieser Ausrüstung ist stets darauf zu achten, dass die Rahmenerdung zuerst angeschlossen und zuletzt abgetrennt wird. 14 Achtung: Das installierte Kabel muss auf etwaige freiliegende Kupferlitzen überprüft werden.
Appendix B: Translated Safety Statements 26 Bei der Versorgung der Einheit durch zentralisierten Gleichstrom ist ein 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 AWG sein.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Telekommunikationskonformitätshinweise 41 Achtung: Bei der Verwendung Ihrer Telefonausrüstung sollten zur Reduzierung der Brand-, Stromschlag und Verletzungsgefahr stets grundsätzliche Sicherheitsrichtlinien, einschließlich der folgenden, befolgt werden: Verwenden Sie dieses Produkt nicht in der Nähe von Wasser, zum Beispiel in der Nähe einer Badewanne, einer Waschschüssel, eines Spülbeckens, eines Waschbottichs, in einem nassen Kellerraum oder in der
Appendix B: Translated Safety Statements Avisos de seguridad láser 1 Atención: Producto láser de clase 1. 2 Atención: No mire el rayo láser. Avisos de seguridad eléctricas 3 Atención: Para evitar la electrocución, no quite la tapa. La unidad no contiene piezas que pueda reparar el usuario. Esta unidad contiene tensiones peligrosas y sólo la debe abrir un técnico convenientemente formado y cualificado.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 13 Atención: Cuando instale el equipo, asegúrese de instalar primero la conexión a tierra del bastidor y de desconectarla en último lugar. 14 Atención: Compruebe si hay algún hilo de cobre al descubierto que proceda del cable instalado. Cuando la instalación se realiza correctamente, no debe quedar ningún hilo de cobre al descubierto fuera del bloque de terminales.
Appendix B: Translated Safety Statements 27 Atención: Si el equipo se monta en un rack, se deberá evitar todo peligro de irregularidad en la carga mecánica. 28 Atención: Quítese todas las joyas metálicas, como anillos y relojes, antes de instalar o quitar una tarjeta de red de un chasis con alimentación eléctrica. 29 Utilice circuitos de alimentación dedicados o acondicionadores de alimentación para suministrar energía eléctrica fiable al dispositivo.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Avisos de conformidad de telecomunicaciones 41 Atención: Cuando utilice su equipo telefónico, deberá adoptar las siguientes precauciones de seguridad básicas para reducir el riesgo de incendio, descarga electrónica y lesiones: No utilice este producto en zonas húmedas; por ejemplo, cerca de una bañera, un lavabo o un fregadero, en un sótano húmedo o cerca de una piscina. Evite el uso de teléfonos no inalámbricos durante una tormenta eléctrica.
Appendix B: Translated Safety Statements Avis de sécurité laser 1 Avertissement: Produit laser de classe 1. 2 Avertissement: Ne pas observer directement le rayon laser. Avis de sécurité électrique 3 Avertissement: Pour éviter tout risque d’électrocution, ne pas déposer le capot. L’appareil ne contient aucun composant réparable par l’utilisateur. Il est exposé à des tensions dangereuses et ne doit être ouvert que par un technicien compétent et qualifié.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 12 Avertissement: Respecter les recommandations pour dénuder les fils. Un dénudage excessif risque de présenter des risques pour la sécurité en laissant le fil exposé sur le bornier après l’installation. 13 Avertissement: Lors de l’installation de cet équipement, toujours s’assurer que la connexion de terre de la structure est installée en premier et déconnectée en dernier.
Appendix B: Translated Safety Statements 26 Un chemin de câble doit être utilisé pour la connexion à la source d’alimentation si l’unité est alimentée par alimentation c.c. centralisée. Le chemin de câble doit être de type TC agréé UL, intensité nominale de 600 V, 90 °C, trois conducteurs, 14 AWG minimum. 27 Avertissement: L’installation de l’équipement sur un rack doit se faire sans provoquer de danger par un chargement mécanique déséquilibré.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Télécommunications – Avis de conformité 41 Avertissement: Les précautions élémentaires de sécurité doivent être systématiquement respectées en utilisant l’équipement téléphonique pour réduire les risques d’incendie, d’électrocution et d’accident corporel, notamment: Ne pas utiliser ce produit près d’une source d’eau, telle qu’une baignoire, un lavabo, un évier ou un baquet dans un sous-sol humide ou près d’une piscine.
Appendix B: Translated Safety Statements Indicazioni sulla sicurezza laser 1 Avvertenza: Prodotto laser Classe 1. 2 Avvertenza: Non fissare il raggio laser. Indicazioni sulla sicurezza elettrica 3 Avvertenza: Per evitare scosse elettriche, non rimuovere la copertura. All'interno non sono presenti componenti utilizzabili dall'utente. Questa unità presenta voltaggi rischiosi e deve essere aperta solo da un tecnico qualificato ed esperto.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 13 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. 14 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.
Appendix B: Translated Safety Statements 28 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. 29 Utilizzare circuiti di alimentazione o alimentatori dedicati per fornire energia elettrica al dispositivo in modo affidabile. 30 Avvertenza: Il chassis potrebbe risultare pesante e scomodo da sollevare. Allied Telesis consiglia di richiedere assistenza per il montaggio del chassis in rack.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Indicazioni per la conformità con le norme sulle telecomunicazioni 41 Avvertenza: Quando si utilizza l'apparecchiatura telefonica, per ridurre il rischio di incendio, scosse elettriche e danni alle persone, è necessario seguire alcune precauzioni di base per la sicurezza, ad esempio: Non utilizzare il prodotto in prossimità di acqua, ad esempio, vicino a vasche da bagno, lavabi, lavandini, piscine oppure in ambienti umidi.
Appendix B: Translated Safety Statements Лазерная безопасность 1 Внимание: лазерный продукт, класс 1. 2 Внимание: Не смотрите прямо в лазерный луч. Электрическая безопасность 3 Внимание: Для предотвращения электрического шока, не снимайте кожух. Внутри нет частей, подлежащих обслуживанию пользователем. Этот устройство – под опасным напряжением и должно открываться только обученным и квалифицированным инженером.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide 13 Внимание: При инсталляции оборудования, убедитесь, что заземление подключается в первую, а отключается в последнюю очередь. 14 Внимание: Проверьте, нет ли на инсталлированных проводков на кабеле. При правильной инсталляции на терминале свободных проводков быть не должно. Открытые провода могут представлять опасность электрического поражения тем лицам, которые прикасаются к проводам.
Appendix B: Translated Safety Statements 26 Для подсоединения источника питания, если установка питается централизованным постоянным током, требуется желобной кабель. Кабель должен быть признанным UL типа и предназначен для 600 В и + 90°C, с тремя кондукторами, минимум 14 AWG (американский калибр). 27 Внимание: Установка оборудования на раме должна быть такой, чтобы не создавалось опасности от неровной механической нагрузки.
AT-FS717FC/SC Fast Ethernet Switch Installation Guide Телекоммуникационное соответствие 41 Внимание: При использовании телефонного оборудования, всегда следует обращать внимания на требования безопасности для снижения риска пожара, поражения током и ранения, в том числе: Не используйте оборудование рядом с водой – например ванной, раковиной или стиральным резервуаров или в мокром подвале рядом с бассейном. Во время электрической бури не используйте телефон (кроме беспроводного).
