AT-8500 Series Layer 2+ Fast Ethernet Switches AT-8516F/SC AT-8524M AT-8524POE AT-8550GB AT-8550SP Installation Guide 613-000818 Rev.
Copyright © 2008 Allied Telesis, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. Allied Telesis is a trademark of Allied Telesis, Inc. Microsoft and Internet Explorer are registered trademarks of Microsoft Corporation. Netscape Navigator is a registered trademark of Netscape Communications Corporation.
Electrical Safety and Emissions Standards This product meets the following standards. U.S. Federal Communications Commission Radiated Energy Note: This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment.
Translated Safety Statements Important: The indicates that a translation of the safety statement is available in a PDF document titled “Translated Safety Statements” (613-000405) posted on the Allied Telesis website at www.alliedtelesis.com.
Contents Preface ................................................................................................................................................................................11 Safety Symbols Used in this Document................................................................................................................................12 Where to Find Web-based Guides .....................................................................................................................
Contents Selecting a Site for the Switch ..............................................................................................................................................51 Planning the Installation........................................................................................................................................................52 Unpacking the Switch .............................................................................................................................
Figures Figure 1. AT-8516F/SC Switch Front and Back Panels 9 Figure 2. AT-8524M Switch Front and Back Panels 10 Figure 3. AT-8524POE Switch Front and Back Panels 11 Figure 4. AT-8550GB Switch Front and Back Panels 12 Figure 5. AT-8550SP Switch Front and Back Panels 13 Figure 6. GBIC Module 21 Figure 7. SFP Transceiver 21 Figure 8. AT-RPS3004 Redundant Power Supply Unit 30 Figure 9. Power Workgroup Topology 35 Figure 10. Collapsed Backbone Topology 36 Figure 11. Mixed Topology 37 Figure 12.
Figures Figure 1. AT-8516F/SC Switch Front and Back Panels.......................................................................................................17 Figure 2. AT-8524M Switch Front and Back Panels ............................................................................................................18 Figure 3. AT-8524POE Switch Front and Back Panels .......................................................................................................19 Figure 4.
Tables Table 1. Safety Symbols .....................................................................................................................................................12 Table 2. Model Configurations ............................................................................................................................................16 Table 3. IEEE 802.3af Class vs. Power Levels ..............................................................................................................
Tables 10
Preface This guide provides the hardware installation instructions for you managed, Layer 2+ AT-8500 Series Fast Ethernet switch.
Preface Safety Symbols Used in this Document This document uses the safety symbols defined in Table 1. Table 1. Safety Symbols Symbol 12 Meaning Description Caution Performing or omitting a specific action may result in equipment damage or loss of data. Warning Performing or omitting a specific action may result in electrical shock.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Where to Find Web-based Guides The installation and user guides for all Allied Telesis products are available in portable document format (PDF) on our web site at www.alliedtelesis.com. You can view the documents online or download them onto a local workstation or server.
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: www.alliedtelesis.com/support. You can use the Knowledge Base to submit questions to our technical support staff and review answers to previously asked questions.
Chapter 1 Overview The AT-8500 Series switches are managed, Layer 2+ Fast Ethernet switches. These switches are designed to simplify the task of creating or expanding an Ethernet or Fast Ethernet network.
Chapter 1: Overview Model Configurations Table 2 lists the basic model configurations. Table 2. Model Configurations Model 16 Configuration AT-8516F/SC 16 100Base-FX ports with dual SC connectors plus two expansion slots for optional fiber optic and twisted pair port expansion modules. AT-8524M 24 10/100Base-TX ports plus two expansion slots for optional fiber optic and twisted pair port expansion modules.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Model Descriptions AT-8516F/SC The AT-8516F/SC switch has 16 100Base-FX fiber optic ports with dual SC connectors. The ports operate at 100 Mbps, half- or full-duplex mode, and have a maximum operating distance of 2 kilometers (1.24 miles) or 412 meters (1,360 feet), depending on the duplex mode, using 50/125 or 62.5/125 micron (core/cladding) multimode fiber optic cable. Figure 1 illustrates the front panel of the AT-8516F/SC switch.
Chapter 1: Overview AT-8524M The AT-8524M switch has 24 10/100Base-TX twisted pair ports and two module expansion slots. The twisted pair ports feature RJ-45 connectors and have a maximum operating distance of 100 meters (328 feet) using Category 3 or better 100 ohm twisted pair cable for 10Base-T operation and Category 5 or 5E 100 ohm twisted pair cable for 100Base-TX operation.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide AT-8524POE The AT-8524POE switch has 24 10/100Base-TX ports with Power over Ethernet (PoE) capability. (For a description of this feature, refer to “Power Over Ethernet” on page 27.) The ports feature RJ-45 connectors and have a maximum operating distance of 100 meters (328 feet) using twisted pair cable.
Chapter 1: Overview AT-8550GB The AT-8550GB switch has 48 10/100Base-TX twisted pair ports, capable of operating at either 10 or 100 Mbps, with RJ-45 connectors. These ports have a maximum operating distance of 100 meters (328 feet) using Category 3 or better 100 ohm twisted pair cable for 10Base-T operation and Category 5 or 5E 100 ohm twisted pair cable for 100Base-TX operation. The switch has two 10/100/1000Base-T twisted pair ports, labelled Ports 49R and 50R.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide AT-8550SP The AT-8550SP switch has 48 10/100Base-TX twisted pair ports with RJ-45 connectors. The ports have a maximum operating distance of 100 meters (328 feet) using Category 3 or better 100 ohm twisted pair cable for 10Base-T operation and Category 5 or 5E 100 ohm twisted pair cable for 100Base-TX operation. The switch also features two 10/100/1000Base-T twisted pair ports, labelled Ports 49R and 50R.
Chapter 1: Overview Port Descriptions This section provides information on the following port types found on the AT-8500 Series switches: 10/100Base-TX Twisted Pair Ports “10/100Base-TX Twisted Pair Ports,” next “10/100/1000Base-T Twisted Pair Ports” on page 24 “100Base-FX Fiber Optic Ports” on page 25 This section applies to the AT-8524M, AT-8524POE, AT-8550GB, and AT-8550SP switches. Type of Connector The 10/100Base-TX twisted pair ports feature 8-pin RJ-45 connectors.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Note In order for a switch port to successfully Auto-Negotiate its duplex mode with an end node, the end node should also be using AutoNegotiation. Otherwise, a duplex mode mismatch can occur. A switch port using Auto-Negotiation will default to half-duplex if it detects that the end node is not using Auto-Negotiation. This will result in a mismatch if the end node is operating at a fixed duplex mode of full-duplex.
Chapter 1: Overview 10/100/ 1000Base-T Twisted Pair Ports This section applies to Port 49R and Port 50R on the AT-8550GB and AT-8550SP switches. Type of Connector The ports have 8-pin RJ-45 connectors. The ports use four pins when operating at 10 or 100 Mbps and all eight pins when operating at 1000 Mbps. Speed The ports can operate at 10, 100, or 1000 Mbps. The speed is set automatically through Auto-Negotiation or you can set the speed to 10 or 100 Mbps manually through the management software.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide For 10 Mbps, the port requires Category 3 or better 100 ohm shielded or unshielded twisted pair cabling. For 100 or 1000 Mbps operation, the ports require Category 5 or Enhanced Category 5 (5E) 100 ohm shielded or unshielded twisted pair cabling. Auto-MDI/MDI-X The ports are auto-MDI/MDI-X. They automatically configure themselves as either MDI or MDI-X.
Chapter 1: Overview Type of Cable The fiber optic ports can use either 50/125 or 62.5/125 micron multimode fiber optic cable. Note Do not use single-mode fiber optic cable with these ports.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Power Over Ethernet The following discussion applies only to the AT-8524POE switch. The twisted pair ports on the AT-8524POE switch feature Power over Ethernet (PoE). PoE is a mechanism for supplying power to network devices over the same twisted pair cables used to carry network traffic. This feature can simplify network installation and maintenance by allowing you to use the switch as a central power source for other network devices.
Chapter 1: Overview described in Table 3. . Table 3. IEEE 802.3af Class vs. Power Levels Class Usage Minimum Power Levels Output at the PSE Maximum Power Levels Output at the PD 0 Default 15.4W 0.44W to 12.95W 1 Optional 4.0W 0.44W to 3.84W 2 Optional 7.0W 3.84W to 6.49W 3 Optional 15.4W 6.49W to 12.95W A port connected to a network node that is not a powered device (that is, a device that receives its power from another power source) functions as a regular Ethernet port, without PoE.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide GBIC and SFP Slots The AT-8550GB switch has two GBIC slots, and AT-8550SP switch has two SFP slots. The slots are labelled Port 49 and Port 50. Each slot can accommodate one optional fiber optic Gigabit Interface Converter (GBIC) or Small Form-factor Pluggable (SPF) transceiver. These modules are a fast and easy way for you to add an 1000 Mbps fiber optic port to your Fast Ethernet switch.
Chapter 1: Overview Module Expansion Slots The AT-8516F/SC, AT-8524M, and AT-8524POE switches have two expansion slots. Each slot can accommodate an expansion module. You can use the slots to add 100Base and 1000Base fiber optic and twisted pair ports to the switch. Note For a list of the Allied Telesis expansion modules supported by the switches, contact your Allied Telesis sales representative or refer to our web site at: www.alliedtelesis.com.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide LEDs This section provides information on the LEDs found on the AT-8500 Series switches: Twisted Pair Port LEDs and the LED Mode Select Button “Twisted Pair Port LEDs and the LED Mode Select Button,” next “Fiber Optic Port LEDs” on page 34 “GBIC and SFP Expansion Slot LEDs” on page 35 “System LEDs” on page 36 This section applies to the AT-8524M, AT-8524POE, AT-8550GB, and AT-8550SP switches.
Chapter 1: Overview Table 4. LEDs for the 10/100Base-TX Twisted Pair Ports on the AT-8524M, AT-8550GB, and AT-8550SP Switches (Continued) LED Mode - 100 (AT-8524M) State Description OFF Indicates that the port is operating at 10 Mbps. Green Indicates that the port is operating at 100 Mbps. Mode - SPD (AT-8550GB and AT-8550SP) OFF Indicates that the port is operating at 10 Mbps. Green Indicates that the port is operating at 100 Mbps.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Table 5. LEDs for Ports 49R and 50R on the AT-8550GB and AT-8550SP Switches (Continued) LED Mode - SPD Mode - FDX Mode - ACT State Description OFF Indicates that the port is operating at 10 or 100 Mbps. Green Indicates that the port is operating at 1000 Mbps. OFF Indicates that the port is operating in halfduplex mode. Green Indicates that the port is operating in fullduplex mode.
Chapter 1: Overview Table 6. LEDs for the 10/100Base-TX Twisted Pair Ports on the AT-8524POE Switch (Continued) LED Mode - DC Mode - POE Fiber Optic Port LEDs 34 State Description OFF Indicates that the port has not established a valid link with its end node. Steady Green Indicates that the port is operating in full duplex mode. Steady Amber Indicates that the port is operating in half duplex mode.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide are defined in Table 7. Table 7. LEDs for the Fiber Optic Ports on the AT-8516F/SC Switch LED L/A D/C State Description OFF Indicates no link has been established between the port and the end node. Green Indicates a valid link exists between the port and the end node. Flashing Green Indicates that the port is transmitting and/or receiving data packets. Green Indicates that the port is operating in full-duplex mode.
Chapter 1: Overview Table 8. LEDs for the Optional GBIC and SFP Ports on an AT-8550GB and AT-8550SP Switches LED State Mode - SPD Solid Green Indicates that the port is operating at 1000 Mbps. Mode - FDX OFF Indicates that the port is operating in half-duplex mode. Solid Green Indicates that the port is operating in full-duplex mode. OFF Indicates that there is no activity on the port. Flashing Green Indicates that the port is transmitting and/or receiving data packets.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide RS-232 Terminal Port You can use the RS-232 terminal port to establish a local (out-of-band) management session with the switch and to configure the switch’s operating parameters. You establish a local management session with the switch by connecting either a terminal or a personal computer with a terminal emulation program to the port. Note You are not required to manage an AT-8500 Series switch.
Chapter 1: Overview Power Options and Connectors This section provides information about the power options and features on the AT-8500 Series switches: RPS Connector “RPS Connector,” next “AC Power Connector” on page 39 “DC Power Connector” on page 39 The RPS connector on the back panel of the switch connects to an optional AT-RPS3004 or AT-RPS3104 redundant power supply unit. Figure 8 illustrates an AT-RPS3004 unit.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide AC Power Connector The switch has a single AC power supply socket on the back panel, which has autoswitch AC inputs. To power the switch on or off, you connect or disconnect the power cord. Refer to Appendix A, “Technical Specifications” on page 81 for the input voltage range.
Chapter 1: Overview A Few Basics about Ethernet Switching 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 in your network has a MAC address and each MAC address is unique. The address is assigned to a device by the device’s manufacturer.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide 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 halfduplex 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.
Chapter 1: Overview 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 port and half-duplex mode stops 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.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Network Topologies This section illustrates several of the network topologies you can create with the AT-8500 Series Fast Ethernet switch. Power Workgroup Topology The topology shown in Figure 9 is commonly referred to as a power workgroup topology. Each workstation or end node is connected directly to a port on an AT-8524M Fast Ethernet Switch.
Chapter 1: Overview AT-8524M Fast Ethernet Swit ch MODE STATUS AT-8524M Fast Ethernet Switch Ethernet Hubs 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 Legend 10 Mbps 100 Mbps Figure 10. Collapsed Backbone Topology Mixed Topology 44 You can always combine topologies as well as build a larger network by connecting different switches together. If the switches are within 100 meters (328 feet) of each other, you can use the twisted pair ports.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Figure 11 illustrates a network of three AT-8524M Fast Ethernet switches. The workstations and servers on the network are connected either directly to a switch or indirectly through an Ethernet hub. The switches themselves are connected together through 1000Base fiber optic ports on AT-A45/SC expansion modules, creating a high-speed backbone.
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Chapter 2 Installation This chapter provides the installation procedures for the switch and contains the following sections: “Reviewing Safety Precautions” on page 48 “Selecting a Site for the Switch” on page 51 “Planning the Installation” on page 52 “Unpacking the Switch” on page 54 “Installing the Switch in a Rack” on page 55 “Installing an Optional Expansion or Stacking Module” on page 58 “Installing an Optional GBIC” on page 60 “Installing an Optional SFP Transceiver” on
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 The indicates that a translation of the safety statement is available in a PDF document titled “Translated Safety Statements” (613-000405) on the Allied Telesis website at www.alliedtelesis.com. Warning: To prevent electric shock, do not remove the cover. No user-serviceable parts inside.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide 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 is in the OFF position before connecting the wires to the breaker.
Chapter 2: Installation Warning: This unit might have more than one power source. To reduce the risk of electric shock, disconnect all power sources before servicing the unit. E30 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).
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Selecting a Site for the Switch Observe the following requirements when choosing a site for your switch: If you plan to install the switch in an equipment rack, check to 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 10 contains the cabling specifications for the twisted pair ports. Table 10.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Table 11 contains the cabling specifications for the fiber optic ports on an AT-8516F/SC switch. Table 11. Fiber Optic Cabling and Distances Model AT-8516F/SC Speed 100 Mbps Cable Type 50/125 or 62.5/125 micron (core/cladding) multimode fiber optic cable Maximum Operating Distance Full-duplex mode: 2 km (1.
Chapter 2: Installation Unpacking the Switch To unpack the switch, perform the following procedure: 1. Remove all components from the shipping package. Note Store the packaging material in a safe location. You must use the original shipping material if you need to return the unit to Allied Telesis. 2. Place the switch on a level, secure surface. 3. Make sure the following hardware components are included in your switch package.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Installing the Switch in a Rack The switch is shipped with two brackets for mounting the unit in a rack. The brackets can be attached to the chassis four ways. You can install the chassis so that it is flush with the front of the rack or so that it extends forward from the rack. Figure 12 illustrates the different ways that you can install the brackets and how much the chassis extends from the front of the rack.
Chapter 2: Installation 2. Using a flat-head screwdriver, remove the snap-on plastic feet from the bottom of the switch, as shown in Figure 13. Figure 13. Removing the Feet 3. Turn the switch over. 4. Attach a rackmounting bracket to one side of the switch using four of the screws that came with the switch. You can install the brackets in one of four ways, as shown in Figure 12. 5. Install the second rackmounting bracket on the other side of the switch using the four remaining screws. 6.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Caution: Air vents must not be blocked and must have free access to the room ambient air for cooling. E6 Warning: Operating Temperature. This product is designed for a maximum ambient temperature of 40° degrees C. E7 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.
Chapter 2: Installation Installing an Optional Expansion or Stacking Module This section describes how to install an optional expansion or stacking module in the switch and applies to the AT-8516F/SC, AT-8524M, and AT-8524POE models. Note The modules can be hot-swapped; you do not have to power off a switch to install these options. To install a module, perform the following procedure: 1. Remove the module from its shipping container and store the packaging material in a safe location.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide 4. Pull the faceplate straight out of the slot. 5. Keep the faceplate in a safe area in case you need to reinstall it. The faceplate keeps any dust from getting into the switch and maintains proper airflow if the slot remains empty. 6. Carefully slide the module into the slot until the module faceplate makes contact with the switch, as shown in Figure 15. Avoid touching the module components.
Chapter 2: Installation Installing an Optional GBIC To install an optional GBIC in an AT-8550GB switch, perform the following procedure: Note A GBIC can be hot-swapped; you do not have to power off a switch to install it. 1. Remove the GBIC from its shipping container and store the packaging material in a safe location. Note You must use the original shipping material if you need to return the module to Allied Telesis. Warning A GBIC can be damaged by static electricity.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide ferrules of the optical connector. Ferrule Bore Figure 17. Optical Bore and Ferrule of GBIC Module Note Unnecessary removal and insertion of a GBIC can lead to premature failure. 4. Slide the GBIC module, with the label side up, into an expansion slot on the switch, as shown in Figure 18. The GBIC can be installed in either slot. The GBIC module is seated in the slot when it clicks into place.
Chapter 2: Installation Installing an Optional SFP Transceiver To install an optional SFP transceiver in an AT-8550SP switch, perform the following procedure: Note An SFP transceiver can be hot-swapped; you do not have to power off a switch to install it. 1. Unpack the SFP transceiver from its shipping container and store the packaging material in a safe location. Note You must use the original shipping material if you need to return the module to Allied Telesis.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide debris picked up on the ferrules of the optical connectors. Use an alcohol swab or wipe to clean the ferrules of the optical connector. Note Unnecessary removal and insertion of an SFP transceiver can lead to premature failure. 4. Remove the dust plug from the SFP slot. 5. Locate the label on the transceiver and turn it so that the label is on top and the alignment groove is on the bottom. 6.
Chapter 2: Installation Cabling the Switch To connect the data cables to the switch ports and to apply power to the switch, perform the following procedure: Cabling Twisted Pair Ports If your AT-8500 Series switch has twisted pair ports, perform the following procedure: 1. Connect the twisted pair data cables to the RJ-45 ports on the switch, as shown in Figure 19. 1 3 26 5 2 4 6 Figure 19.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide instructions on how to configure a port trunk, refer to the AT-S62 Management Software User’s Guides. When you connect a device to a port on an AT-8524POE switch, the port automatically determines whether the node is a powered device and, if it is, the amount of wattage required by the device, up to a maximum of 15.4 W. If the node is not a powered device, the port automatically disables the PoE feature.
Chapter 2: Installation 2. Attach the fiber optic data cables to the fiber optic ports, as shown in Figure 21. 18 L /A TX 1 RX D /C L /A TX TX 9 RX D /C TX Figure 21. Attaching a Fiber Optic Cable When you attach 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. A dual SC port consists of two separate connectors, as shown in Figure 22. Each connects to a separate fiber strand.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide remote end node. For example, you cannot connect a fiber optic port with a maximum distance of 2 kilometers and an operating wavelength of 1310 nm to another fiber optic port that has a maximum distance of 40 kilometers (24.8 miles) and an operating wavelength of 1550 nm. For fiber optic ports specifications, refer to “AT-8516F/SC Fiber Optic Port Specifications” on page 85.
Chapter 2: Installation Powering on an AC Powered Switch To power on an AC powered switch, perform the following procedure: Note If you are installing a DC powered switch, go to “Wiring and Powering on an DC Powered Unit” on page 70. 1. Select the correct power cord for your country. 2. Plug the power cord into the AC power connector on the back panel of the switch, as shown in Figure 23. Warning The power cord is used as a disconnection device. To de-energize equipment, disconnect the power cord.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide 4. If you installed an optional redundant power supply unit, connect one end of the DC power cord included with the RPS unit to the back panel of the redundant power supply and the other end to the RPS connector on the back panel of the switch, as shown in Figure 24. Figure 24. Connecting the RPS DC Cable 5. Verify that the PWR LED on the front of the unit is green. If the PWR LED is OFF, refer to Chapter 3, “Troubleshooting” on page 77.
Chapter 2: Installation Wiring and Powering on an DC Powered Unit To provide power for a DC powered switch, perform the following steps: 1. Before you attach wires to the DC terminal block at the rear of the switch, review the following warning: 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.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Warning Do not strip more than the recommended amount of wire. (See Figure 26.) Stripping more than the recommended amount can create a safety hazard by leaving exposed wire on the terminal block after installation. E10 8mm ±1mm (0.31in. ±0.039in.) 451 Figure 26. Stripped Wire 4.
Chapter 2: Installation 7. Secure the tray supply cable near the rack framework using multiple cable ties to minimize the chance of the connections being disturbed by casual contact with the wiring. Use at least four cable ties separated four inches apart with the first one located within six inches of the terminal block. This system works with a positive grounded or negative grounded DC system. E13 8. Ensure that the circuit breaker is in the Off position. 9. Connect the DC wires to the circuit breaker.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Starting a Local Management Session The procedure in this section explains how to start a local (out-of-band) management session using the RS-232 terminal port on the switch. You can use a local management session to configure the switch’s operating parameters and view performance and error statistics.
Chapter 2: Installation Parity: None Stop bits: 1 Flow control: None Note The port settings are for a DEC VT100 or ANSI terminal, or an equivalent terminal emulator program. Note When you reset or power cycle the switch during a local management session, you will see the following prompt: Press B to go to Boot Prompt. This message is intended for manufacturing purposes only. If you inadvertently display the boot prompt (=>), type boot and press Return to start the switch. 4. Press Return.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Warranty Registration When you have finished installing the switch, fill out the enclosed warranty card and mail it to Allied Telesis.
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Chapter 3 Troubleshooting This chapter contains information on how to troubleshoot the switch in the event that a problem occurs. If after following the instructions in this chapter you are unable to resolve the problem, contact Allied Telesis Technical Support for assistance. Refer to “Contacting Allied Telesis” on page 14 for contact information. PWR LED is Off Check the PWR LED on the front of the switch.
Chapter 3: Troubleshooting 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 Mbps and 1000 Mbps operations. Determine if a crossover cable is required. Since the twisted pair ports feature auto MDI/MDI-X, you should be able to use a straight-through cable regardless of the type of device you connect to a port.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide example, you cannot connect a fiber optic port with a maximum distance of 40 kilometers (24.8 miles) and an operating wavelength of 1550 nm to a remote fiber optic port with an maximum distance of only 2 kilometers (1.24 miles) and a wavelength of 1310 nm. Check to be sure that the fiber optic ports on the switch and on the end node are operating at the same speed and duplex mode.
Chapter 3: Troubleshooting Check the FAULT LED. During normal operations, the LED remains off, except for periods when the management software is saving a change to its configuration. If it remains on for an extended period, do the following: Try resetting the switch by disconnecting and reconnecting the AC power cord. If the switch is a DC model, reset the unit by powering off and the powering on the DC circuit.
Appendix A Technical Specifications Physical Specifications AT-8516F/SC and AT-8524M Dimensions 4.4 cm x 44.0 cm x 22.2 cm (1.75 in. x 17.3 in. x 8.75 in.) (H x W x D) AT-8550GB and AT-8550SP Dimensions 4.4 cm x 44.0 cm x 25.5 cm (1.75 in. x 17.3 in. x 10.0 in.) (H x W x D) AT-8524POE Dimensions: 4.4 cm x 43.8 cm x 40.6 cm (1.75 in. x 17.25 in. x 16.0 in.) (H x W x D) Weight: AT-8516F/SC AT-8524M AT-8524POE AT-8550GB AT-8550SP 3.4 kg (7.4 lb.) 3.2 kg (7.1 lb.) 6.0 kg (13.3 lb.) 3.6 kg (7.9 lb.) 3.
Appendix A: Technical Specifications Power Specifications Input Voltage: All models except for the AT-8524POE: AC DC 100-240 VAC, 2A Max, 50/60 Hz 36-60 VDC, 4A Max AT-8524POE: AC 100-240 VAC, 6A Max, 50/60 Hz AC Input Power Consumption: All models except AT-8524POE: Only the AT-8524POE: Available Power over Ethernet: IEEE 802.3af Class 3 (15.4 W): IEEE 802.3af Class 2 (7.3 W): IEEE 802.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide RJ-45 Twisted Pair Port Pinouts Figure 29 illustrates the pin layout for an RJ-45 connector and port. Pin 1 Figure 29. RJ-45 Connector and Port Pin Layout Table 12 lists the RJ-45 pin signals for the 10/100Base-TX ports on the AT-8524M, AT-8550GB, and AT-8550SP switches. Table 12.
Appendix A: Technical Specifications Table 13. 10/100Base-T Port MDI/MDI-X Pin Signals with PoE Pin MDI Signal MDI-X Signal 4 Unused Unused 5 Unused Unused 6 RX- and Vport-2 TX- and Vport-2 7 Unused Unused 8 Unused Unused 1. Vport-1 can be positive (+) or negative (-), depending on the requirements of the powered device connected to a port. 2. Vport-2 can be positive (+) or negative (-), depending on the requirements of the powered device connected to a port.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide AT-8516F/SC Fiber Optic Port Specifications Standard: 100Base-FX Speed: 100 Mbps Maximum Operating Distance: 2 km (1.24 mi) Connectors: AT-8516F/SC Dual SC Connector Type of Cabling: 50/125 micron or 62.5/125 micron (core/cladding) multimode fiber optic cabling Operating Wavelength: 1310 nm Transmitter Output Power: 50/125 micron cabling Minimum: Maximum: -22.5 dBm average -14 dBm average 62.
Appendix A: Technical Specifications RS-232 Terminal Port Pinouts Table 15 lists the pin signals on the RS-232 terminal port. Table 15.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide RPS Connector Port Pinouts Figure 30 illustrates the pin layout to the 16-pin molex connector and RPS port on the AT-8516F/SC, AT-8524M, AT-8550GB, and AT-8550SP switches. 9 1 16 9 1 16 8 8 Figure 30. RPS 16-pin Molex Connector Pin Layout Table 16 lists the 16-pin RPS connector pins and definitions. Table 16. Pin Definitions of the 16-pin RPS Connector Pin Definition 1 +5V DC 2 Remote Sense (RS) +3.3 V DC 3 RS -3.
Appendix A: Technical Specifications Table 16. Pin Definitions of the 16-pin RPS Connector (Continued) Pin Definition 16 +3.3V DC Return Figure 31 illustrates the pin layout to the RPS connector on the AT-8524POE switch. A2 7 15 1 A1 8 Figure 31. AT-8524POE RPS Connector Pin Layout Table 17 lists the RPS connector pins and definitions. Table 17.
AT-8500 Series Layer 2+ Fast Ethernet Switches Installation Guide Table 17. Pin Definitions for the RPS Connector on the AT-8524POE Switch (Continued) Pin Definition 13 3.3V RS+ 14 3.3V 15 3.
Appendix A: Technical Specifications Dual SC Type Connector A dual SC type connector, as shown in Figure 32, is used with the AT-8516F/SC switch. Figure 32.
