Gigabit Ethernet Smart Switches AT-GS950/16 AT-GS950/24 Installation Guide 613-000190 Rev.
Copyright © 2007 Allied Telesis, Inc. All rights reserved. No part of this publication may be reproduced without prior written permission from Allied Telesis, Inc. Allied Telesis and the Allied Telesis logo are trademarks of Allied Telesis, Incorporated. All other product names, company names, logos or other designations mentioned herein are trademarks or registered trademarks of their respective owners. Allied Telesis, Inc.
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 6
Figures Figure 1. AT-GS950/16 and AT-GS950/24 Front Panels ....................................................................................................17 Figure 2. AT-GS950/16 and AT-GS950/24 Back Panels.....................................................................................................17 Figure 3. AT-GS950/16 and AT-GS950/24 System and Port LEDs ....................................................................................19 Figure 4. Power Workgroup Topology ...............
Figures 8
Tables Table 1. Table 2. Table 3. Table 4. Table 5. Table 6. Table 7. Table 8. Safety Symbols .....................................................................................................................................................12 System LEDs ........................................................................................................................................................19 10/100/1000Base-T Port LEDs .....................................................................
Tables 10
Preface This guide contains installation instructions for the AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches.
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-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart 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 and corporate information. Online Support You can request technical support online by accessing the Allied Telesis Knowledge Base: 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 Overview This chapter describes the AT-GS950/16 and AT-GS950/24 Layer 2 Gigabit Ethernet Switches. The sections in the chapter are.
Chapter 1: Overview Features The features of the AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Switches include: 16 LEDs for unit and port status 16 or 24 Auto-Negotiating 10/100/1000Base-T twisted pair ports with RJ-45 connectors Two small form-factor pluggable (SFP) ports Auto MDI/MDI-X on the twisted pair ports IEEE 802.3 and IEEE 802.3u compliant IEEE 802.3x flow control in full-duplex operation; back pressure in half-duplex operation IEEE 802.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Front and Back Panels Figure 1 illustrates the front panels of the AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Switches.
Chapter 1: Overview Ports The AT-GS950/16 and AT-GS950/24 Layer 2 Gigabit Ethernet Switches feature 16 or 24 twisted pair ports and two slots for optional SFP transceivers. Twisted Pair Ports The twisted pair ports are 10Base-T, 100Base-TX, and 1000Base-TX compliant. They automatically set their speed and duplex mode with IEEE 802.3u Auto-Negotiation. If desired, you can disable Auto-Negotiation on a port and manually set the speed and duplex mode.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide LEDs The LEDs shown in Figure 3 display system and port status information.
Chapter 1: Overview Table 3. 10/100/1000Base-T Port LEDs (Continued) LED State Description LINK/ACT Off The port has not established a link with an end node. Blinking Green The port is transmitting or receiving data. Green A valid link has been established on the port. Table 4 describes the LEDs for the SFP ports. Table 4. SFP Port LEDs 20 LED State Description LINK/ACT Off The port has not established a link with an end node. Blinking Green The port is transmitting or receiving data.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Power Supply The switches have an internal power supply with 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. A power cord is supplied with the switch. Note For the power requirements, refer to “Power Specifications” on page 41.
Chapter 1: Overview Network Topologies This section illustrates two network topologies of the AT-GS950/16 and AT-GS950/24 Layer 2 Gigabit Ethernet Switches: a power workgroup and collapsed backbone. Power Workgroup Topology The topology shown in Figure 4 is commonly referred to as a power workgroup topology. This topology provides the best in performance and reliability because each end node is connected directly to the AT-GS950/ 24 Switch with a dedicated network link.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Collapsed Backbone In the topology illustrated in Figure 5 the AT-GS950/16 is connected to other managed and unmanaged Ethernet switches to form a collapsed backbone topology. The AT-GS950/16 Switch functions as the focal point of the network by transferring Ethernet frames between the switches.
Chapter 1: Overview 24
Chapter 2 Installation This chapter contains the following sections: “Reviewing Safety Precautions” on page 26 “Selecting a Site for the Switch” on page 28 “Cable Specifications” on page 29 “Unpacking the Switch” on page 30 “Installing the Switch on a Desktop” on page 31 “Installing the Switch in an Equipment Rack” on page 32 “Installing an Optional SFP Transceiver” on page 34 “Cabling the Switch” on page 37 “Powering On the Switch” on page 38 25
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) posted 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-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart 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.
Chapter 2: Installation Selecting a Site for the Switch Observe the following requirements when choosing a site for your switch: 28 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.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Cable Specifications Table 5 contains the cable specifications for the twisted pair ports. Table 5. Twisted Pair Cabling and Distances Speed Type of Cable Maximum Operating Distance 10 Mbps Standard TIA/EIA 568-B-compliant Category 3 or better shielded or unshielded cabling with 100 ohm impedance and a frequency of 16 MHz.
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. Verify that the following hardware components are included in your switch package.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Installing the Switch on a Desktop You can install the AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches on a desktop or in a standard 19-inch equipment rack. To install the switch in a rack, refer to “Installing the Switch in an Equipment Rack” on page 32. 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.
Chapter 2: Installation Installing the Switch in an Equipment Rack To install the switch in a standard 19-inch equipment rack, perform the following procedure: 1. If attached, remove the rubber feet using a flat-head screwdriver. 2. Install a bracket on one side of the switch using a Phillips screwdriver and four of the rack-mount screws included with the switch. Figure 7 and Figure 8 illustrate installing the brackets on the AT-GS950/16 and AT-GS950/24 Switches, respectively. 16 761 Figure 7.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide 4. Mount the switch in a standard 19-inch equipment rack using the four large screws included. Figure 9 and Figure 10 show how to mount the AT-GS950/16 Switch and AT-GS950/24 Switch, respectively. 16 762 Figure 9. Mounting the AT-GS950/16 Switch in an Equipment Rack 23 24 760 Figure 10.
Chapter 2: Installation Installing an Optional SFP Transceiver The AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches have two slots for optional SFP transceivers. To install an SFP transceiver, perform the following procedure: Note The transceiver can be hot-swapped; you do not need to power off the switch to install a transceiver. However, always remove the cables before removing the transceiver. Note You should always install the transceiver before connecting the fiber optic cables to it. 1.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide 4. Slide the transceiver into the SFP slot until it clicks into place. 738 Figure 12. Inserting the SFP 5. Verify that the handle on the transceiver is in the upright position, as shown in Figure 13. This secures the transceiver and prevents it from being dislodged from the slot. SFP Transceiver Handle 1300 Figure 13. Positioning the SFP Handle in the Upright Position 6.
Chapter 2: Installation Note Unnecessary removal and insertion of an SFP can lead to premature failure. For information on the cable specifications of the SFP, consult the documentation shipped with the SFP.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Cabling the Switch Observe the following guidelines when connecting twisted pair and fiber optic cables to the ports on the switch: The connector on the cable should fit snugly into the port on the switch. The tab on the connector should lock the connector into place. Because the twisted pair ports have auto-MDI/MDI-X, you can use straight-through twisted pair cable to connect any type of network device to the switch.
Chapter 2: Installation Powering On the Switch To power on the switch, perform the following procedure: 1. Plug the power cord into the AC power connector on the back of the switch, as shown in Figure 14. 741 Figure 14. Plugging in the AC Power Cord 2. Plug the other end of the power cord into a wall outlet. Warning: Power cord is used as a disconnection device. To deenergize equipment, disconnect the power cord. E3 Pluggable Equipment.
Chapter 3 Troubleshooting This chapter contains information on how to troubleshoot the switch if a problem occurs. Note For further assistance, please contact Allied Telesis Technical Support. Refer to “Contacting Allied Telesis” on page 14. 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: Verify that the power cord is securely connected to the power source and to the AC connector on the back panel of the switch.
Chapter 3: Troubleshooting 40
Appendix A Technical Specifications Physical Specifications Dimensions: Weight: AT-GS950/16 330 mm x 230.7 mm x 43.2 mm (12.99 in x 9.08 in x 1.7 in) AT-GS950/24 440 mm x 257 mm x 43.2 mm (17.32 in x 10.12 in x 1.7 in) AT-GS950/16 AT-GS950/24 2.38 kg (5.25 lbs) 3.25 kg (7.
Appendix A: Technical Specifications Safety and Electromagnetic Emissions Certifications EMI/RFI: FCC Class A, EN55022 Class A, CISPR Class A Immunity: EN55024 Electrical Safety: EN60950 (TUV), UL60950 (cULus), C-TICK, CE Connectors and Port Pinouts This section lists the connectors and connector pinouts for the AT-GS950/16 and AT-GS950/24 switches and their components. Figure 15 illustrates the pin layout for an RJ-45 connector and port. 8 1 8 1 Figure 15.
AT-GS950/16 and AT-GS950/24 Gigabit Ethernet Smart Switches Installation Guide Table 7 lists the RJ-45 port pin signals when a twisted pair port is operating in the MDI-X configuration. Table 7. MDI-X Pin Signals (10Base-T or 100Base-TX) Pin Signal 1 RX+ 2 RX- 3 TX+ 6 TX- Table 8 lists the RJ-45 connector pins and their signals when a 1000Base-T port is operating at 1000 Mbps. Table 8.
Appendix A: Technical Specifications 44
