Allied Telesis AT-FS750/24POE User's Manual
Contents
1. 11 Safety Symbols Used in this Document ssssssssssssessseeeeeeeen nennen nnne nennen iie e nennen nenne enn enne 12 Where to Find Web based Guides ome ed dee A eae dtd e 13 Contacting Allied MEI Creep as 14 Online SUpPpO Em 14 Email and Telephone Support A A 14 Returning Produets iii as 14 For Sales or Corporate Information iieiea eerte oie 14 Ma tn RE EE EHN MM CN NIU RM 14 Chapter 1 Overview a Ro oe oe nal 15 actuum 16 Ire nd no0dse dulce 17 oni EE 18 Twisted Pair Ports eter ete e i teed ee tH T A iR i do pe e nee det rore et pede potete 18 Wplink Combo Ports err PH rd ears 18 RBS n PEE 20 System EEDS i iei trei dE EUM Ree i 20 10 100Base T POE Port EEDS reote inner dicas 20 10 100Base T Non POE Port LEDS a e a aa a ra Tee aa aea aere eA TAa ener n nnne enne nere n enne nnn en nennen nnne nns 21 Uplink Combo Port EEDS sii ra dete essei die reor eed zoe e Eee deed Eod deed uve d eade ct eed Hd oves 22 Power Supply eer teen els e pod ue E deeper ee e eder ee Usu Doa 24 xe fois m MM 25 Power Budgeting nmi necie ied 25 Implem2. Installing a Switch in a Rack To install the switch in a rack perform the following procedure 1 2 If attached remove the rubber feet using a flat head screwdriver Install a bracket on one side of the switch using a Phillips screwdriver and three of the rack mount screws included with the switch Figure 9 shows how to mount the brackets on the switch 1097 Figure 9 Attaching the Rack Mount Bracket Repeat step 2 to attach the remaining bracket to the other side of the Switch Mount the switch on a 19 inch rack as shown in Figure 10 P gt Figure 10 Mounting the Switch on the Rack 40 gt AT FS750 24POE Fast Ethernet Smart Switch Installation Guide 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 E1 Warning Do not work on equipment or cables during periods of lightning activity 417 E2 Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord E3 Warning Class Equipment This equipment must be earthed The power plug must be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place
3. 10 100Base T POE Port LEDs LED State Description L A Green A valid link has been established on the port Blinking The port is transmitting or receiving data Green Off No link is established on the port 100M Green A valid 100 Mbps link is established between the uplink port and the end node Off A valid 10 Mbps link is established between the port and the end node PoE Green A PoE powered device is connected and is receiving power Blinking PoE is off due to a failure on the POE Green powered device Off A PoE powered device is not connected Ports 13 through 24 each have two LEDs as shown in Figure 3 and described in Table 3 21 Chapter 1 Overview 1094 Figure 4 10 100Base T Non PoE Port LEDs Table 4 10 100Base T Non PoE Port LEDs LED State Description L A Green A valid link has been established on the port Blinking The port is transmitting or receiving data Green Off No link is established on the port 100M Green A valid 100 Mbps link is established between the uplink port and the end node Off A valid 10 Mbps link is established between the port and the end node Uplink Combo The LEDs for the uplink combo ports ports 25 and 26 are shown in Port LEDs Figure 5 and described in Table 5 Figure 5 Uplink Combo Port LEDs 22 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Table 5 Uplink Combo Port LEDs LED State Descripti
4. 21 Table 4 10 100Base T Non PoE Port LEDS eee nen eene nennen nene erret e erre eterne R 22 Table 5 Uplink Combo POrtiLE DS ee iti etc epi tee iEn rhe ER pr ia te B Lyn acera runs 23 Table 6 IEEE 802 3af Class vs Power Levels sse enne nennen inneren rne eterne nennen nnne nns 26 Table 7 Twisted Pair Cabling and Distances ssssssssssesse en enne ene nenrennene enne inneu Kraaie ciadna nns 37 Table 8 MDI Pin Signals 10Base T or 100Base TX sssssssseeseeeeeeenen nennen nnne rn nn rn nennen nnne neret 52 Table 9 MDI X Pin Signals 10Base T or 100Base TX sssssseseeeeeneneen eee nnne ener entere enne nnns 53 Tables Preface This guide provides the hardware installation instructions for your AT FS750 24POE Fast Ethernet switch This preface contains the following sections o Safety Symbols Used in this Document on page 12 O Where to Find Web based Guides on page 13 o Contacting Allied Telesis on page 14 Preface Safety Symbols Used in this Document This document uses the safety symbols defined in Table 1 Table 1 Safety Symbols Symbol Meaning Description Caution Performing or omitting a specific action may N result in equipment damage or loss of data Warning Performing or omitting a specific action may A result in electrical shock AT FS750 24POE Fast Ethernet Smart Switch Installation Guide
5. be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place hazardous voltages on accessible metal parts E4 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible E5 A Caution Air vents must not be blocked and must have free access to the room ambient air for cooling 47 E6 Warning Operating Temperature This product is designed for a maximum ambient temperature of 40 degrees C 4 E7 All Countries Install product in accordance with local and National Electrical Codes 4 7 E8 34 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Circuit Overloading Consideration should be given to the connection of the equipment to the supply circuit and the effect that overloading of circuits might have on overcurrent protection and supply wiring Appropriate consideration of equipment nameplate ratings should be used when addressing this concern amp E21 Warning Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading amp E25 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 ra
6. each other over more than one data path Warning To reduce the risk of electric shock the PoE ports on this product must not connect to cabling that is routed outside the building where this device is located E40 2 Connect the other end of the twisted pair cable to a port in the end node Connecting the To connect a fiber optic cable to an SFP installed in the AT FS750 24POE Fiber Optic Fast Ethernet Smart switch perform the following procedure Cables 45 Chapter 2 Installation 1 Remove the dust plug from the SFP as shown in Figure 14 PF a D T Figure 14 Removing the Dust Plug from the SFP 2 Connect the fiber optic cable to the SFP port as shown in Figure 15 Figure 15 Connecting the Fiber Optic Cable Powering On the To power on the switch perform the following procedure Switch 1 Plug the power cord into the AC power connector on the back of the Switch as shown in Figure 16 46 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Figure 16 Plugging in the AC Power Cord 2 Plug the other end of the power cord into a wall outlet N Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord E3 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible E5 3 Verify that the POWER LED is green If the LED is OFF refer to Chapter 3 Troubleshooti
7. telephones webcams and even other Ethernet switches A powered device connected to a port on the switch will receive both network traffic and power over the same twisted pair cable The switch automatically determines whether a device connected to a port is a powered device or not A powered device has a signature resistor or signature capacitor that the switch can detect over the Ethernet cabling If the resistor or capacitor is present the switch assumes that the device is a powered device The AT FS750 24POE Fast Ethernet Smart switch provides a maximum of 15 4 W of power per port on six of the twelve POE ports for a total power consumption of 100 W while at the same time furnishing standard 10 100 Mbps Ethernet functionality The AT FS750 24POE smart power management functionality supports any combination of the first twelve Ethernet ports 1 12 that supply power for IEEE 802 3af Class 0 1 2 or 3 powered devices up to a maximum of 100 watts as described in Table 6 Note Power is supplied to the powered devices in the order that the ports are connected or on a first come first served basis until the 100 watt limit is reached If the switch is power cycled after the PoE devices are connected to the switch ports the power is supplied to ports 1 through 12 in that order 25 Chapter 1 Overview Implementation Table 6 IEEE 802 3af Class vs Power Levels Minimum Power Maximum Power Class Usage L
8. Fast Ethernet Smart Switch AT FS750 24POE Installation Guide BV Allied Telesis 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 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 The information provided herein is subject to change without notice In no event shall Allied Telesis Inc be liable for any incidental special indirect or consequential damages whatsoever including but not limited to lost profits arising out of or related to this manual or the information contained herein even if Allied Telesis Inc has been advised of known or should have known the possibility of such damages Electrical Safety and Emissions Standards This product meets the following standards U S Federal Communications Commission Radiated Energy Note This equipment has been tested and found to comply with the limits for a Class A digital device pursuant t
9. 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 Online Support Email and Telephone Support Returning Products For Sales or Corporate Information Warranty This section provides Allied Telesis contact information for technical support as well as sales or corporate information 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 For Technical Support via email or telephone refer to the Allied Telesis web site www alliedtelesis com Select your country from the list displayed on the website Then select the appropriate menu tab Products for return or repair must first be assigned a Return Materials Authorization RMA number A product sent to Allied Telesis without a RMA number will be returned to the sender at the sender s expense To obtain an RMA number contact the Allied Telesis Technical Support group at our web site www alliedtelesis com support rma Select your country from the list displayed on the website Then select the ap
10. ause all other twisted pair ports on the AT FS750 24POE Fast Ethernet Smart switch are operating at 10 Mbps and 100 Mbps speeds the uplink combo ports ports 25 and 26 provide fiber optic connectivity for the 1000 Mbps speed Each uplink combo port consists of one 10 100 1000Base T twisted pair port and one SFP port If both uplink ports are AT FS750 24POE Fast Ethernet Smart Switch Installation Guide connected the SFP port takes precedent over the twisted pair port 19 Chapter 1 Overview LEDs The AT FS750 24POE Fast Ethernet Smart switch provides the LEDs described in this section System LEDs The switch has two system level LEDs Power and PoE as shown in Figure 2 and described in Table 2 1 3 5 l 2 4 6 10 100 POF Figure 2 System LEDs Table 2 System LEDs LED State Description Power Green The switch is powered up and operating normally Blinking Green The switch is starting up performing a self test or dowloading software Off The switch is powered off PoE Green POE is available for the POE ports Amber POE failed 10 100Base T Ports 1 through 12 each have three LEDs as shown in Figure 3 and POE Port LEDs described in Table 3 20 10 100Base T Non POE Port LEDs AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Ch 10 12 8888 8 986 Figure 3 POE Port LEDs Table 3
11. cted to the power source and to the AC connector on the back panel of the switch Verify that the power outlet has power by connecting another device to it Try connecting the unit to another power source Try using a different power cord Verify that the voltage from the power source is within the required levels for your region Verify that the LINK ACT LED for each port is ON If a LINK ACT LED is OFF do the following m m Verify that the end node connected to the port is powered on and is operating properly Verify that the twisted pair cable is securely connected to the port on the switch and to the port on the end node Ensure that the twisted pair cable does not exceed 100 meters 328 feet Verify that you are using the appropriate category of twisted pair cable Category 3 or better for 10 Mbps operation and Category 5 and Category 5E for 100 and 1000 Mbps operation Note A 1000Base connection may require five to ten seconds to establish a link 49 Chapter 3 Troubleshooting 50 Appendix A Technical Specifications Physical Specifications Dimensions 444 mm x 322 mm x 43 5 mm 17 48 in x 12 67 in x 1 71 in Weight 4 133 kg 9 11 Ibs Environmental Specifications Operating Temperature 0 C to 40 C 14 F to 122 F Storage Temperature 25 C to 70 C 40 F to 158 F Operating Humidity 5 to 90 non condensing Storage Humidity 5 to 95 non condensing Operatin
12. ea hore cco ver iver een ser RR yar iene esi Green 100Mbps Off 10Mbps Link is not present gt gt POE port LEDs one LED for each port to show power status Green Powered device is connected and ready to receive power Green blinking PoE is off due to a fault on this port Off Powered device is not connected or is not a valid powered device gt gt 1000BaseT port LEDs two LEDs for each port Portsstatus LED erre serene done nene T OCC TRE ian pesos Green RJ 45 or SFP is present port is enabled Green blinking Frames are ready to be transmitted received on this port Off Link is not present SpesdED s E EE AEN AEA EE TE O Ie eI Een seat Green 1Gbps Amber 100Mbps Off 10Mbps Link is not present Figure 17 AT S88 Management Software Main Page Because the switch initially has no login or password protection follow the instructions in the AT S88 Management Software User s Guide to change the IP address and add administrative users 48 Chapter 3 Troubleshooting This chapter contains information on how to troubleshoot the switch in the event that a problem occurs Note If you need further assistance please contact Allied 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 o Ensure that the power cord is securely conne
13. eps 2 through 4 if you are installing another SFP transceiver Note SFP transceivers are dust sensitive When a fiber optic cable is not installed or when you store the SFP always keep the plug in the optical bores When you do remove the plug keep it for future use Note Unnecessary removal and insertion of an SFP can lead to premature failure For information about cabling for the SFP consult the documentation that was shipped with the SFP 44 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Cabling and Powering On the Switch Connecting the To connect the twisted cables to the RJ 45 ports on the AT FS750 24POE Twisted Pair ast Ethernet Smart switch perform the following procedure Cables 4 Plug the twisted pair data cables to the RJ 45 ports on the switch as shown in Figure 13 1101 Figure 13 Connecting the Twisted Pair Data Cables When connecting a twisted pair cable to a port observe the following guidelines O AnRJ 45 connector should fit snugly into the port on the switch The tab on the connector should lock the connector into place O The ports on the switch are auto MDI MDI X You can use either a straight through or crossover twisted pair cable to connect any type of network device to a port on the switch O The network should not contain data loops which can adversely affect network performance A data loop exists when two or more network devices can communicate with
14. evels Output at Levels Output at the PSE 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 The PoE feature remains enabled on the port but no power is delivered to the device A standard Ethernet twisted pair cable contains four pairs of strands for a total of eight strands 10 100 Mbps network traffic requires only four strands 1 2 3 and 6 leaving four strands in the cable unused 4 5 7 and 8 The PoE standard IEEE 802 3af describes two alternative ways for delivering power to a powered device PD over twisted pair cabling Alternative A uses the same strands that carry the network traffic Alternative B uses the spare strands The PoE implementation on the AT FS750 24POE Fast Ethernet Smart switch is Alternative A where power is transmitted over strands 1 2 3 and 6 PD s that comply with the IEEE 802 3af standard typically support both power delivery methods So long as a PD is compliant with the standard it should be able to receive its power from the switch while using either a straight or cross over cable The PoE feature on the AT FS750 24POE Fast Ethernet Smart switch should also work with most legacy PD s as long as the device can be powe
15. feature to half duplex The switch uses store and forward as the method for receiving and transmitting frames When a Ethernet frame is received on a switch port the switch does not retransmit the frame out the destination port until it has received the entire frame and stored the frame in a port buffer It then examines the frame to determine if it is a valid frame Invalid frames such as fragments or runts are discarded by the switch This ensures that only valid frames are transmitted out the switch ports and that damaged frames are not propagated on your network To maintain the orderly movement of data between the end nodes an Ethernet switch may periodically need to signal an end node to stop sending data This can occur under several circumstances For example if two end nodes are operating at different speeds the switch while transferring data between the end nodes might need to instruct the faster end node to stop transmitting data to allow the slower end node to catch up An example of this would be when a server operating at 100 Mbps is sending data to a workstation operating at only 10 Mbps How a switch signals an end node to stop transmitting data differs depending on the speed and duplex mode of the end node and switch port A twisted pair port operating at 100 Mbps and half duplex mode will stop an end node from transmitting data by forcing a collision A collision on an Ethernet network occurs when two end nodes attempt to
16. g Altitude Range Up to 3 000 m 9 843 ft Power Specifications AC Voltage Frequency Requirements 100 240 VAC 50 60 Hz AC Input Power Consumption 150 W Maximum Available Power over Ethernet 100 W 48 VDC IEEE 802 3af Class 3 15 4 W Max 6 ports IEEE 802 3af Class 2 7 3 W Max 12 ports IEEE 802 3af Mode Alternative A MDI 51 Appendix A Technical Specifications Safety and Electromagnetic Emissions Certifications EMI RFI FCC Class A EN55022 Class A CISPR Class A C TICK CE Immunity EN55024 Electrical Safety EN60950 1 TUV UL60950 1 cULus Connectors and Port Pinouts This section lists the connectors and connector pinouts for the AT FS750 24POE Fast Ethernet Smart Switch and its components Figure 18 illustrates the pin layout for an RJ 45 connector and port A ey 1 1 Figure 18 RJ 45 Connector and Port Pin Layout Table 8 lists the RJ 45 pin signals when a twisted pair port is operating in the MDI configuration Table 8 MDI Pin Signals 10Base T or 100Base TX Pin Signal 1 TX 2 TX 3 RX 6 RX 52 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Table 9 lists the RJ 45 port pin signals when a twisted pair port is operating in the MDI X configuration Table 9 MDI X Pin Signals 10Base T or 100Base TX Pin Signal 1 RX 2 RX 3 TX 6 TX 53 Appendix A Technical Specifications 54
17. g of rack mounted equipment should be maintained Particular attention should be given to supply connections other than direct connections to the branch circuits e g use of power strips E37 42 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Installing an Optional SFP Transceiver The AT FS750 24POE Fast Ethernet Smart switch has two SFP uplink ports 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 must install the transceiver before you connect cables to it 1 Remove the transceiver from its shipping container and store the packaging material in a safe location A Warning An SFP transceiver can be damaged by static electricity Be sure to observe all standard electrostatic discharge ESD precautions such as wearing an antistatic wrist strap to avoid damaging the transceiver 2 Remove the dust plug from the SFP slot as shown in Figure 11 Figure 11 Removing the Dust Plug from the SFP Slot 3 Locate the label on the transceiver and turn it so that the label is on top and the alignment groove is on the bottom 43 Chapter 2 Installation 4 Slide the SFP transceiver into an SFP slot on the switch as shown in Figure 12 Figure 12 Inserting the SFP 5 Repeat st
18. hazardous voltages on accessible metal parts E4 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible E5 Caution Air vents must not be blocked and must have free access to the room ambient air for cooling amp E6 Warning Operating Temperature This product is designed for a maximum ambient temperature of 40 degrees C amp 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 Appropriate consideration of equipment nameplate ratings should be used when addressing this concern amp E21 Warning Mounting of the equipment in the rack should be such that a hazardous condition is not created due to uneven mechanical loading amp E25 41 Chapter 2 Installation 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 47 E35 that the amount of air flow required for safe operation of the equipment is not compromised E36 Caution Installation of the equipment in a rack should be such Warning Reliable earthin
19. iehtatlOn s o a a a a e a a ie E C eS eon de eod e A E a a 26 Ethernet Switching BasiCs x ree ie n bred E ede nuce re P STEA ney Se ee et 27 MAC Address Tables sipin canes 27 IB d 27 otore and FOrWAard etd eeu ce eeu 28 Back Pressure and Flow GConirol eene iet e id Exe einer Redde agna sore dd sues 28 Network Topologies 5 1 c aaa dia 30 Power Workgroup Topology A iii 30 Gollapsed Backbonie 5I ete etie ie inem epe inmunes ek eae nba Sse ree oe ese 31 Ghapter 2 Installation 00 5 n ei nine eso Een E i cde LR Edere demere E cepe Dou sceau ie toca eee 33 Reviewing satety Precautlorisz 2 2 1 teo lal Mechs weaned Ice sm epe nii 34 Selecting a Site for the Switcli 1 teet eee tente nete eoa spe tenete io ade dees MER En Ee ice deret 36 Cablifig tiere ett E ERR RR ERR EN NE HEURE E BUE RERBA I RR D Een eer 37 Unpacking he Witch m E 38 Installing the Switch ona Desktop rr reete ias 39 Installing a Switchi in a Rack ic io piedad 40 Installing an Optional SFP Transceiver sssesesseeen nn nro rre 43 Cabling andPowering On the Switch comic 45 Connecting the Twisted Pair Cables tie 45 Connecting the Fiber Optic Cables cineris rint Ld ad ed tinta c 45 Powe
20. kage 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 Ensure that the following hardware components are included in your switch package If any item is missing or damaged contact your Allied Telesis sales representative for assistance One AT FS750 24POE Fast Ethernet Smart switch and the following o u uuu Two rack mount brackets Six rack mount bracket screws Four rubber feet for desktop use One power cord Documentation CD 38 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Installing the Switch on a Desktop You can place the switch on a desktop or install them in a 19 inch rack To install the switch in a rack refer to Installing a Switch in a Rack on page 40 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 Turn the switch over and attach the four rubber feet to the bottom of the switch as shown in Figure 8 s VAS 30 LV sis2j2 pav aw 1096 Figure 8 Attaching the Rubber Feet 3 Turn the switch over again and place it on a flat secure surface such as a desk or table leaving ample space around the unit for ventilation 39 Chapter 2 Installation
21. ng on page 49 The switch is now powered on and ready for network operations To start a management session on the switch refer to Starting a Management Session on page 48 session refer to the AT S88 Management Software User s Guide 47 Chapter 2 Installation Starting a Management Session To start a management session on an AT FS750 24POE Fast Ethernet Smart switch perform the following procedure 1 In a web browser address box enter the following IP address 192 168 1 1 The main page for the AT S88 management software is shown in Figure 17 MVE Allie Telesis AUC ESZ5S50 24POE system name support IE 5 5 or above 3 Welcome to AT FS750 24POE System gt gt System LED Green The switch is powered up and operating normally Physical Interface Green blinking Self test initialization or downloading Bridge Amber The switch detects hardware malfunctions ME temperature voltage etc Security PoE Off No power Statistics Chart UR DN Save Configuration gt gt PoELED Green PoE is available and operating normally Amber PoE is not available or is not operating normally gt gt 10 100BaseT port LEDs one LED for each port to show port status Bortistalue EE b ENEE TA T IPS tent ine tune autumn coin sere Green Link is present port is enabled Green blinking Frames are ready to be transmitted received on this port Off Link is not present Span DE Er AS A NASA con
22. nnemis en dedan entren tenen nene enne en neret nnne 39 Figure 10 Attaching the Rack Mount Bracket essen eene e reine nnr nnne nnns sinet ne ESNEA rne nn nets nnn 40 Figure 11 Mounting the Switch on the Rack ccccceccceeceeceeeeee cee ee eee aeaee eee ceeae eee enne nnrnn sehn n tenni ener tenetis iin nen ss sitne rens rsen nena 40 Figure 12 Removing the Dust Plug from the SFP Slot sssssseeeeneeeeene enne en nennen nnne enne nnns 43 Figure 13 Inserting tlie SEP iau e e RE drid 44 Figure 14 Connecting the Twisted Pair Data Cables ssssssseeeeneneene nennen nennen nnne nennen nnne nnns 45 Figure 15 Removing the Dust Plug from the SFP ssssssssssseeeneenen e eene nnn en tenete en nennen nennen nne 46 Figure 16 Connecting the Fiber Optic Cable ssessseseeeeeeeeen nenne enne di nemen nennen nennen erre nenne enne 46 Figure 17 Plugging in the AC Power Cords snte idii ide cete reed hene eia ied ee dede eodein 47 Figure 18 AT S88 Management Software Main Page sse nennen enne errem nre enne rennen 48 Figure 19 RJ 45 Connector and Port Pin Layout ssssssssesesseeenee pri e diia ennemi nenne enr nenne 52 Figure 1 RJ 45 Connector and Port Pin Layout 52 Tables Tables Table 1 Safety Symbols noce te iet ias 12 Tabl 2 System EEDS 5 A a Eee mid cas deed de reinen c 20 Table 3 10 100Base T POE Port LEDS 2 ii eter Ad
23. o 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 This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with this instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Note Modifications or changes not expressly approved of by the manufacturer or the FCC can void your right to operate this equipment Industry Canada This Class A digital apparatus complies with Canadian ICES 003 Cet appareil num rique de la classe A est conforme la norme NMB 003 du Canada RFI Emissions FCC Class A EN55022 Class A CISPR Class A C TICK CE Warning In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures Immunity EN55024 Electrical Safety EN60950 1 TUV UL 60950 1 ULyus A Laser Safety EN60825 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 E
24. on L A Green A valid link has been established on the port Blinking The port is transmitting or receiving data Green Off No link is established on the port SPD Green A valid 1000 Mbps link is established between the uplink port and the end node Amber A valid 100 Mbps link is established between the uplink port and the end node Off A valid 10 Mbps link is established between the uplink port and the end node 23 Chapter 1 Overview Power Supply The 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 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 51 24 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Power over Ethernet Power Budgeting The twisted pair ports on the AT FS750 24POE Fast Ethernet Smart 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 A device that receives its power over an Ethernet cable is called a powered device Examples of such devices can be wireless access points IP
25. onnection and the other using a fiber optic connection Access points and IP phones are connected to the switches as PoE devices The access points in turn support a wireless Ethernet network of laptop users Topology AT 9424T Aaa dd i SE DITA CIAL ES i AT FS750 24POE IP Phones Wireles Network Wireless Network ess Network lt Legend 10 Mbps Si EUR cia 100 Mbps 1000 Mbps Figure 6 Power Workgroup Topology 30 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Collapsed In the topology illustrated in Figure 7 an AT 9424T SP Gigabit Ethernet Backbone Switch forms the backbone that connects to servers and AT FS750 24POE Fast Ethernet Smart switches using Gigabit Ethernet uplinks This type of topology is often referred to as a collapsed backbone topology The switch functions as the focal point of the network and transfers an Ethernet frame between the Fast Ethernet switches only when the destination end node for the frame is on a different switch than the end node that originated the frame This reduces the amount of unnecessary data traffic in each workgroup freeing up bandwidth and improving network performance F AT 9424T AT FS750 24POE u U J 10 Mbps p rl 100 Mbps 1000 Mbps Figure 7 Collapsed Backbone Hub Topology 31 Chapter 1 Overview 32 Chapter 2 Installation This cha
26. propriate menu tab You can contact Allied Telesis for sales or corporate information at our web site www alliedtelesis com Select your country from the list displayed on the website Then select the appropriate menu tab The AT FS750 24POE has a Lifetime Warranty two years fan and PSU Go to www alliedtelesis com warranty for the specific terms and conditions of the warranty and for warranty registration Chapter 1 Overview The AT FS750 24POE Fast Ethernet Smart switch is a Layer 2 Fast Ethernet switch designed to simplify the task of creating or expanding an Ethernet or Fast Ethernet network This chapter contains the follows sections Features on page 16 Front and Back Panels on page 17 Ports on page 18 LEDs on page 20 Power Supply on page 24 Power over Ethernet on page 25 Ethernet Switching Basics on page 27 uuuuuuiuiu Network Topologies on page 30 Chapter 1 Overview Features The features of the AT FS750 24POE Fast Ethernet Smart switch include QO a u uuu iu Q LEDs for unit and port status 24 Auto Negotiating 10 100Base T twisted pair ports with RJ 45 connectors Two uplink combo ports combination of one 10 100 1000Base T twisted pair port and one Gigabit small form factor pluggable SFP port 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 ope
27. pter contains the following sections Reviewing Safety Precautions on page 34 Selecting a Site for the Switch on page 36 Cabling on page 37 Unpacking the Switch on page 38 Installing the Switch on a Desktop on page 39 Installing a Switch in a Rack on page 40 Installing an Optional SFP Transceiver on page 43 Cabling and Powering On the Switch on page 45 uuuuuuiui uiu Starting a Management Session on page 48 33 Chapter 2 Installation Reviewing Safety Precautions Please review the following safety precautions before you begin to install the switch 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 N 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 2 E1 N Warning Do not work on equipment or cables during periods of lightning activity 41 E2 N Warning Power cord is used as a disconnection device To de energize equipment disconnect the power cord E3 N Warning Class Equipment This equipment must be earthed The power plug must
28. ration IEEE 802 1p based QoS support with four priority queues per port IEEE 802 1q based tagged up to 4K VLAN support IEEE 802 1x port based and MAC based authentication with RADIUS client IEEE 802 1D W spanning tree Port mirroring support IEEE 802 3ad link aggregation support Dynamic Host Configuration Protocol DHCP client support MAC address table capacity of up to 8K addresses with automatic aging Broadcast storm control Web based configuration using the AT S88 management software Front and Back Panels AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Figure 1 illustrates the front and back panels of the AT FS750 24POE Fast Ethernet Smart switch res Poe CL TU SSC GENE QW 3 8 7 9 n n 5 v w m n DAF Alied Telesis AT FS750 24POE a Pore System LEDs 10 100Base Twisted Pair Ports EL Uplink Combo Ports 1088 Port LEDs TA 8 O ES TIT 339 JAS 332 1089 Figure 1 AT FS750 24POE Front and Back Panels Chapter 1 Overview Ports Twisted Pair Ports Uplink Combo Ports The AT FS750 24POE Fast Ethernet Smart switch features 24 twisted pair ports and two uplink combo ports The twisted pair ports feature 8 pin RJ 45 connectors For the port pinouts refer to Connectors and Port Pinouts on page 52 The ports on the AT FS750 24POE Fast Ethernet Smar
29. red on pins 1 2 3 and 6 A legacy device is a node that was manufactured before the IEEE 802 3af standard was completed and consequently may not adhere to the standard If this is the case a straight MDI cable may be needed to insure that the DC polarity is correct 26 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Ethernet Switching Basics MAC Address Table Duplex Mode An Ethernet switch interconnects network devices such as workstations printers routers and other Ethernet switches so that they can communicate with each other by sending and receiving Ethernet frames Every hardware device on your network has a unique MAC address This address is assigned to the device by the device s manufacturer For example when you install a Network Interface Card NIC in a computer so that you can connect it to the network the NIC already has a MAC address assigned to it by its manufacturer The MAC address table in the AT FS750 24POE Fast Ethernet Smart switch can store up to 8K MAC addresses The switch uses the table to store the MAC addresses of the network end nodes connected to the ports along with the port number on which each address was learned A switch learns the MAC addresses of the end nodes by examining the source address of each packet received on a port It adds the address and port on which the packet was received to the MAC table if the address had not already been entered in the table The re
30. ring On the Switch ii ia 46 Starting a Management Sesslor niiret ata a iaa 48 Chapter 3 Troubleshooting 0 0 0 eee ence eeene ee eeneeecee ee eee ae ccoo nn nn nn rre 49 Appendix A Technical Specifications ooonoooccnnnninicccnnnncnccccncncnnncnncnnncnnnoncnnnnnnnn nn EESAN nan ESEESE EEANN EEEE ESSN nnn ESEESE Ennan nE Enant 51 Contents Physical SpeCiiCatlons eem Environmental Specifications POWer Specifications stet rrt RN PERPE e Rt FRE er ar eer ut cae std aunt dp ERR REED e DEEST Safety and Electromagnetic Emissions Certifications Connectors and Port Pinouts Figures Figure 1 RJ 45 Connector and Port Pin Layout sssssssssseseeeeeeenen enne enne enn rre 527 Figure 2 AT FS750 24POE Front and Back Panels sssssssssseeeeeneee nennen nennen eem sentent nennen 17 Fig re 3 System LEDS 3 nd eee ree eee te eee liat Cerda ar Ga AES eo epe d osea ated 20 Figure 4 POE Port LEDS inire ere e e eren ee ee eed TED epe pe ede eene dr eie ie dtes 21 Figure 5 10 100Base T Non PoE Port LEDS ooooooonocccconoccnicoccnooncncono non tiinu ia iaa oiinadi kae iaaiiai ianiai rennen nnns 22 Figure 6 Uplink Combo Port LEDS eiis ieni e eed tin eda dnte a cis 22 Fig re 7 Power Workgroup Topology ene iiid dades 30 Figure 8 Collapsed Backbone Hub Topology sese nrnen nene n nennen inneren nre en nnns 31 Figure 9 Attaching the Rubber Feet sssssssssseseen ene nennen e
31. rough its vents on the side and rear should not be restricted Do not place objects on top of the switch Do not expose the switch to moisture or water Ensure that the site is a dust free environment You should use dedicated power circuits or power conditioners to supply reliable electrical power to the network devices 36 Cabling AT FS750 24POE Fast Ethernet Smart Switch Installation Guide Table 7 contains the cabling specifications for the twisted pair ports Speed Table 7 Twisted Pair Cabling and Distances Type of Cable Maximum Operating Distance 10 Mbps Category 3 or better 100 ohm shielded or unshielded twisted pair cable 100 m 328 ft 100 Mbps Category 5 or Category 5E Enhanced 100 ohm shielded or unshielded twisted pair cable 100 m 328 ft 1000 Mbps Category 5 and Category 5E Enhanced 100 ohm shielded or unshielded twisted pair cable 100 m 328 ft Note The twisted pair ports on the switch feature auto MDI when operating at 10 100 or 1000 Mbps Each port is individually configured as MDI or MDI X when connected to an end node Consequently you can use either a straight through or crossover twisted pair cable when connecting any network device to a twisted pair port on the switch 37 Chapter 2 Installation Unpacking the Switch To unpack the switch perform the following procedure 1 Remove all components from the shipping pac
32. sult is a table that contains all the MAC addresses of the devices that are connected to the switch s ports and the port number where each address was learned When the switch receives a packet it also examines the destination address and by referring to its MAC address table determines the port on which the destination end node is connected It then forwards the packet to the appropriate port and on to the end node This increases network bandwidth by limiting each frame to the appropriate port when the intended end node is located freeing the other switch ports for receiving and transmitting data If the switch receives a packet with a destination address that is not in the MAC address table it floods the packet to all the ports on the switch If the ports have been grouped into virtual LANs the switch floods the packet only to those ports which belong to the same VLAN as the port on which the packet was received This prevents packets from being forwarded into inappropriate LAN segments decreasing network security When the destination end node responds the switch adds its MAC address and port number to the table If the switch receives a packet with a destination address that is on the same port on which the packet was received it discards the packet without forwarding it on to any port Since both the source end node and the destination end node for the packet are located on the same port on the switch there is no reason for the swi
33. t switch are 10Base T and 100Base TX compliant and are capable of 10 megabits per second Mbps and 100 Mbps speeds The ports are IEEE 802 3u Auto Negotiation compliant With Auto Negotiation the switch automatically matches the highest possible common speed between each switch port and each end node For example if an end node is capable of only 10 Mbps the switch sets the port connected to the end node to 10 Mbps Each twisted pair port on the switch can operate in either half or full duplex mode The twisted pair ports are IEEE 802 3u compliant and Auto Negotiate the duplex mode setting Note In order for the switch to set the duplex mode for each port correctly the end nodes that you connect to the switch ports should also use Auto Negotiation Otherwise a duplex mode mismatch can occur affecting network performance For further information refer to Duplex Mode on page 27 Each twisted pair port has a maximum operating distance of 100 m 328 feet For 10 Mbps operation Category 3 or better 100 ohm shielded or unshielded twisted pair cabling is required For 100 or 1000 Mbps operation Category 5 and Enhanced Category 5 5E 100 ohm shielded or unshielded twisted pair cabling is required The twisted pair ports are auto MDI They automatically configure themselves as either MDI or MDI X This feature allows you to use either straight through or crossover twisted pair cables to connect devices to the ports Bec
34. tch to forward the packet Duplex mode refers to how an end node receives and transmits data If an 27 Chapter 1 Overview Store and Forward Back Pressure and Flow Control end node can receive or transmit data but not both simultaneously the end node is operating in what is referred to as half duplex mode If an end node can both receive and transmit data simultaneously the end node is said to be operating in full duplex mode Naturally an end node capable of operating in full duplex can handle data much faster than an end node that can only operate in half duplex mode The twisted pair ports on the AT FS750 24POE Fast Ethernet Smart switch can operate in either half or full duplex mode They are IEEE 802 3u compliant and you can set them to Auto Negotiation For Auto Negotiation to operate properly on a switch the end nodes connected to the switch should also use Auto Negotiation If an end node does not have this feature and has a fixed duplex mode of full duplex the result will be a duplex mode mismatch between the end node and a switch port A port on the Fast Ethernet switch connected to an end node with a fixed duplex mode of full duplex will operate at only half duplex This results in the end node using full duplex and the switch port using half duplex This can produce network performance problems If you encounter this situation you must configure the port on the end node to use Auto Negotiation or if it lacks that
35. ted ambient temperature Tmra 47 E35 Caution Installation of the equipment in a rack should be such that the amount of air flow required for safe operation of the equipment is not compromised E36 Warning Reliable earthing of rack mounted equipment should be maintained Particular attention should be given to supply connections other than direct connections to the branch circuits e g use of power strips E37 Warning To reduce the risk of electric shock the PoE ports on this product must not connect to cabling that is routed outside the building where this device is located E40b 35 Chapter 2 Installation Selecting a Site for the Switch Observe the following requirements when choosing a site for your switch o u uuu If you plan to install the switch in an equipment rack ensure that the rack is safely secured and that it will not tip over Devices in a rack should be installed starting at the bottom with the heavier devices near the bottom of the rack If you are installing the switch on a table ensure that the table is level and secure The power outlet for the switch should be located near the unit and should be easily accessible The site should provide for easy access to the ports on the front of the switch This will make it easy for you to connect and disconnect cables as well as view the switch s LEDs To allow proper cooling of the switch air flow around the unit and th
36. transmit data using the same data link at the same time A collision causes end nodes to stop sending data When the switch needs to stop a 100 Mbps half duplex end node from transmitting data it forces a collision on the data link which stops the end node When the switch is ready to receive 28 AT FS750 24POE Fast Ethernet Smart Switch Installation Guide data again the switch stops forcing collisions This is referred to as back pressure A port operating at 100 Mbps and full duplex mode uses PAUSE frames as specified in the IEEE 802 3x standard to stop the transmission of data from an end node Whenever the switch wants an end node to stop transmitting data it issues this frame The frame instructs the end node to cease transmission The switch continues to issue PAUSE frames until it is ready again to receive data from the end node This is referred to as flow control The AT FS750 24POE Fast Ethernet Smart switch supports both TX and RX flow control 29 Chapter 1 Overview Network Topologies This section illustrates two network topologies that you can create with the AT FS750 24POE Fast Ethernet Smart switch a power workgroup and collapsed backbone Both types of topologies are described below Power The topology shown in Figure 6 is commonly referred to as a power Workgroup workgroup topology Two AT FS750 24POE Fast Ethernet Smart switches are connected to an AT 9424T SP Gigabit Ethernet Switch one via an RJ45 c
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