Allied Telesis GS900/8POE manuale d’uso

613-000414 Rev. D Layer 2 Gigabit Ethernet Switch AT-GS900/8POE Installation Guide[...]

Copyright © 2008 Allied Telesis, Inc. All rights reserved. No part o f this pub lication may be repro duced without prior wr itten permission from Al lied Telesis, Inc. Allied Telesis is a t rademark of Allied Tele sis, Inc. Microsoft and Internet Explorer are regist ered tradem arks of Microsoft Co rporation. Netscape Navigator is a register ed t[...]

3 Electrical Safety and Emissions S tandards This product meets the following standards. RFI Emissions FCC Class A, EN55022 Cl ass A, EN61000-3-2, EN61000-3-3, VCCI Class A, C-TICK, CE Immunity EN55024 Electrical Safety EN60950 (TUV), UL 60950 ( C UL US ) U.S. Federal Communications Commission Radiated E nergy Note: This equipment has been tested a[...]

4 T ranslated Safety S tatements Important: The  indicates that a translation of th e safety statement is available in a PDF document titled “Translated Safety State ment s” posted on the Allied Telesis website a t www.alliedtelesis.com and on the documentation CD shipp ed with this product.[...]

5 Preface .............. ............ ........... ........... .............. ........... ........... ............ ........... .............. ...... ......................... ........... ........... .. 11 Safety Symbols Used in th is Docu ment........ ............ ........... ........... .............. ........... ........... ............. .........[...]

Contents 6 Power Specifications........ ........... .............. ........... .............. ............ ........... .............. ........... . ........................... ........... ............49 Safety and Electromagnetic Emission s Certifications ... ............................................................. ............ ........ ......[...]

7 Figure 1. AT-GS900/8POE Gigabi t Etherne t Switch Front and Back Panels ...... ............................ ............ ........... ...... ....... 16 Figure 2. SFP Transceiver......................... .............. ........... .............. ........... .............. ........... . .......... ............... ........... .......... 18 Figure 3. [...]

Figures 8[...]

9 Ta b l e s Table 1. Safety Sy mbols ..................... .............. ........... .............. ........... .............. ............ ..... ......... .............. ........... ........... .. 12 Table 2. System LED ............... ........... .............. ........... .............. ........... .............. ............ .... .......... .[...]

Tables 10[...]

11 Pr eface This guide provides the hardware installation in structions for your AT-GS900/8POE Fast Ethernet switch. Thi s preface contains the following sections:  “Safety Symbols Used in this Document” o n page 12  “Where to Find W eb-based Guides” on p age 13  “Contacting Allie d T elesis” on p age 14[...]

Preface 12 Safety Symbols Used in this Document This document uses the safety symbols defined in Table 1. T able 1. Safety Symbols Symbol Meaning Description Caution Performing or omi tting a specific action may result in equipment damage or loss of data. W arning Performing or omi tting a specific action may result in electrical shock.[...]

AT-GS900/8POE Fast Ethernet Switc h Installation Guide 13 Where to Find Web-based Guides The installation and user guides for all Allied Telesis products are available in portable document format (PDF) o n our web site at www.alliedtelesis.com . You can view the documents onlin e or download them onto a local workstation or server.[...]

Preface 14 Contacting Allied Telesis This section provides Allied Telesis contact information for technical support as well as sales or corporate informat ion. Online Support You can request technical sup port online by accessing t he Allied Telesis Knowledge Base from the followin g web site: www.alliedtelesis.com/support . You can use the Knowled[...]

15 Chapter 1 Overview This chapter contains the follo ws sections:  “Features” on page 16  “Port Descriptions” on page 17  “LEDs” on page 19  “Power Supply” on p age 21  “Power over Ethernet” on pa ge 22  “Ethernet Swi tching Bas ics” on page 24  “Network T opologies” on page 2 7[...]

Chapter 1: Ove rview 16 Features The AT-GS900/8POE Gigabit Ethernet switch is an unmanaged switch with the following features:  Eight Auto-Negotiating 10/100/1000Ba se-T twisted pa ir ports with Power over Ethernet (PoE) cap ability  One small form-factor plugg able (SFP) port to use a s an uplink port  System and port LEDs  Power over [...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 17 Port Descriptions The following sections describe the ty pes of ports on the AT-GS900/8POE Gigabit Ethernet switch:  “T wisted Pair Ports,” next  “SFP Combo Port” on page 18 Twisted Pair Ports The AT-GS900/8POE Gigabit Ethernet switch features eight 10/100/ 1000Base-T twiste[...]

Chapter 1: Ove rview 18 PoE ports. SFP Combo Port The AT-GS900/8POE Gigabit Ethernet switch has one SFP port that ca n accommodate an optional Small Form-fa ctor Pluggable (SFP) transceiver. The AT-GS900/8POE Gigabit Ethernet switch has one SFP combo port (Port 8) that can accommodate one optio nal Small Form-factor Pluggable (SFP) transceiver modu[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 19 LEDs The system and port LEDs on the front pa nel of the AT-GS900/8POE Gigabit Ethernet switch switch display the switch and its port status information. Table 2 describes the system LED. Each twisted pair port has two LEDs, as described in Table 3. T able 2. System LED LED St ate Descrip[...]

Chapter 1: Ove rview 20 Table 4 describes the SFP port LED. T able 4. SFP Port LED LED St ate Description L/A Green A valid link is est ablished on the SFP mo dule in the SFP expansion slot. Blinking Green Frames are being transmitted/received on the SFP module in the SFP exp ansion slot. OFF No link is established on the SFP module in the SFP exp [...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 21 Power Supply The AT-GS900/8POE Gigabit Ethernet switch has 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 o r off, connect or disconnect the power cord provided with the swit ch. Note For the powe[...]

Chapter 1: Ove rview 22 Power over Ethernet The twisted pair ports on the AT-GS900/8POE Gigabit Ethern et switch feature Power over Ethernet (PoE). PoE is a mechanism for supplying power to network devices over the same twisted pair cables use d to carry network traffic. This feature can simplify netwo rk installation and maintenance by allowing yo[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 23 Note Power is supplied to the powered devices in the order th at the ports are connected or on a first-co me-first-served basis until the 65 watt limit is reached. If the switch is power cycled after the PoE d evices are connected to the switch po rts, the power is supplied to ports 1 thr[...]

Chapter 1: Ove rview 24 Ethernet Switching Basics An Ethernet switch interconnects ne twork devices, such as workstatio ns, printers, routers, and other Ethern et switches, so that they can communicate with each other b y sending and receiving Ethernet frames. MAC Address Table Every hardware device on your net work has a unique MAC address. This a[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 25 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 tra nsmit data simultaneously, the end n ode is said to be operating in full-duplex mode. Naturally, an end node ca[...]

Chapter 1: Ove rview 26 Back Pressure and Flow Control To maintain the orderly movement of data between the end nodes, an Ethernet switch may periodically need to signal an end node to stop sending data. This can occur under seve ral circumsta nces. For example, if two end nodes are operating at differen t speeds, the switch, while transferring dat[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 27 Network Topologies This section illustrates two network topol o gies that you can create with the AT-GS900/8POE Gigabit PoE switch: a power workgroup and colla psed backbone. Power Workgroup Topology The topology shown in Figure 3 is commonly referred to as a power workgroup topology. Eac[...]

Chapter 1: Ove rview 28 PoE Network Topology In the topology shown in Figure 4, an AT-GS900/8POE Gigabit Ethernet switch is connected to an AT-9424T/SP Gigabit Ethernet Switch and a number of POE powered devices in different lo cations. Figure 4. PoE Network Topology POWER 1234 567 8 R PoE CLASS 1 LASER PRODUCT 1000Base-X AT -GS900/8POE 8 Port 10/1[...]

29 Chapter 2 Installation This chapter contains the following sections:  “Reviewing Safety Precautions” on p age 30  “Selecting a Site for the Switch” on p age 32  “Planning the Inst allation” on p age 33  “Unpacking the Switch” on page 34  “Installing the Switch on a T able or Desktop” on p age 35  “Mounting[...]

Chapter 2: Inst allation 30 Reviewing Safety Precautions Review the following saf ety precautions before yo u begin to install the AT-GS900/8POE Gigabit Ethernet switch. Note The  indicates that a translation of the safety state ment is available in a PDF document titled “Tra nslated Safety Statements” on the Allied Telesis website at www.al[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 31 Warning: Operating Temperature. This product is designed for a maximum ambient temperature of 40° deg rees C.  E7 All Countries: Install product in accordance with loca l and National Electrical Codes .  E8 Caution: The attached moun ting bracket s must be used to securely mount th[...]

Chapter 2: Inst allation 32 Selecting a Site for the Switch Observe the following requirement s when choosing a site for th e AT-GS900/8POE Gigabit Ethernet switch:  If you plan to inst all the switch in an equipment rack, be sure that t he rack is safely secured and that it will not tip over . Devices in a rack should be insta lled st arting at[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 33 Planning the Installation Table 6 contains the cabling specific atio ns for the twisted pair ports. Note The twisted pair ports on the switch fe ature auto-MDI when operating at 10 or 100 Mbps. Each port is individu ally configured as MDI or MDI-X when connected to an end node. Therefore,[...]

Chapter 2: Inst allation 34 Unpacking the Switch To unpack an AT-GS900/8POE Gigabit Ethernet switch, perform the following procedure: 1. Remove all components from the shipping pa ckage. Note Store the packaging material in a sa fe location. You must use the original shipping material if you need to re turn the unit to Allied Telesis. 2. Place the [...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 35 Installing the Switch o n a Table or Desktop To install the switch on a ta ble or desktop, perform the follo wing procedure: 1. Remove all the items from the packa ging and store the packaging material in a safe place. In the event a problem occurs and you need to return the unit, please [...]

Chapter 2: Inst allation 36 Mounting the Switch on a Wall You can mount the AT-GS900 /8POE Gigabit Ethernet switch on the wall in a vertical position using the mounti ng brackets that are shipped with the switch. The wall-mounting screws, plastic anchors, and other materials necessary to mount the switch on a wa ll are not provided. To mount the sw[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 37 5. Mount the switch on the wall using the wall mo unting screws (not provided), as shown in Figure 7. Figure 7. Mounting the Switch on the Wall 6. Refer to “Cabling and Powering on the Switch” on page 43 to complete the installation. 7. To prevent accidental disconnection of the AC po[...]

Chapter 2: Inst allation 38 Installing the Switch in a Rack To install the switch in a rack, perform the following procedure: 1. If attached, remove the rubber feet u sing a flat-head screwdriver. 2. Attach a mounting bracket ( provided) to each side of the switch usin g the bracket mounting screws (pro vided), as shown Figure 8. Figure 8. Attachin[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 39 Figure 9. Mounting the Switch on the Rack Warning: To prevent electric shock, do not remove the cover. No user-serviceable parts inside . This unit contains h azardous voltages and should only be o pened by a trained and qualified technician. To avoid the possibilit y of electric shock, d[...]

Chapter 2: Inst allation 40 Refer to “Cabling and Powering on the Switch” on p age 43 to complete the installation. Warning: Reliable earthing of rack-mounted equip ment should be maintained. Particular attention should be given to supply connections other than direct conn ections to the branch circuits (e.g., use of power strips).  E37[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 41 Installing an Optional SFP Transceiver To install an SFP transceive r in an AT-GS900/8POE Gigabit Eth ernet switch, perform the following procedu re: Note The transceiver can be hot-swapped; you do not need to power off the switch to install a transceiver. Ho wever, always remove the cabl[...]

Chapter 2: Inst allation 42 4. Slide the SFP transceiver into the SFP slot on the switch, as shown in Figure 10. Figure 10. Inserting the SFP Note SFP transceivers are dust sensitive. Whe n a fiber optic cable is not installed, or when you store the SFP, always ke ep the plug in the slot. When you do remove the plug, keep it for fu ture use. Note U[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 43 Cabling and Powering on the Switch This section contains t he following procedures:  “Cabling the T wisted Pair Ports,” next  “Cabling an SFP T ransceiver” on page 44  “Powering on the Switch” on pag e 45 Cabling the Twisted Pair Ports To connect to the 10/100Base-T t[...]

Chapter 2: Inst allation 44 Cabling an SFP Transceiver To cable an SFP transceiver, perform the follo wing procedure: Warning Class 1 laser product.  L1 Warning Do not stare into the laser beam.  L2 Note For information about the prop er cable type, refer to the documentation that acco mpanied the SFP transceive r. Note Before you install the[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 45 2. Connect the fiber optic cable to the SFP transceiver, as shown in Figure 13. Figure 13. Connecting Fiber Optic Cables to the SFP Transceiver 3. Power on the end nodes. Powering on the Switch To power on the AT-GS900/8POE Gigabit Ethernet switch, perform the following procedure: 1. Plug[...]

Chapter 2: Inst allation 46 If the PWR LED is OFF , refer to Chapter 3, “T roubleshooting” on page 47. The switch is ready for network ope rations.[...]

47 Chapter 3 T r oubleshooting This chapter contains information on how to troubleshoot the switch in the event that a problem occurs. Note If after following the instructions in this chapte r you are unable to resolve the problem, contact Allied Telesis Technical Support for assistance. Refer to “Contacting Allied Telesis” on page 14 for conta[...]

Chapter 3: Tro ubleshooting 48  V erify that you are using the appropriate category of twisted p air cable: Category 3 or better for 10 Mbp s operation and Category 5 and Category 5E for 100 Mbp s operation. PD ERROR LED is On If the PD ERROR LED is on, indicating that there is a con nection error to one of the PoE powered device connected to th[...]

49 Appendix A T echnical Specifications Physical Specifications Dimensions: (W x D x H) 330 mm x 220 mm x 44 mm (13.0 in x 8.7 in x 1.7 in) Weight: 1.86 kg (4.1 lbs) Environmental Specifications Operating Temperature: 0° C to 40° C (32° F to 104° F) Storage Temperature: -25° C to 70° C (-13° F to 158° F) Operating Humidity: 5% to 90% non-co[...]

Appendix A: Technica l Specifications 50 Safety and Electromagnetic Emissions Certifications EMI FCC Class A, EN55022 Class A, C-TICK Immunity EN55024 Electrical Safety UL 60950-1 ( C UL US ), EN 60950-1 (TUV) or VDE, CE Laser IEC/EN 60825-1, IEC/EN 60825-2[...]

AT-GS900/8POE Gigabit Etherne t Switch Installation Guide 51 RJ-45 Twisted Pair Port Connectors This section lists the connectors an d connector pinouts for the AT-GS900/8POE Gigabit PoE switch and its components. Figure 15 illustrates the pin lay out to an RJ-45 connector and port. Figure 15. RJ-45 Connector and Port Pin L ayout Table 7 lists the [...]

Appendix A: Technica l Specifications 52[...]