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Allied Telesis AT-8500 Series User's Manual

1. Redundant Power Supply RPS present 2 5V DC Return 3 3V DC Return 3 3V DC O 0 JJ OoO OoOo Aaj o nNn 5V DC Return o 2 5V DC 2 5 DC Return PEN N 2 5V DC ae wo 2 5V DC Return A 2 5V DC al 3 3V DC 87 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 1 Al A O 000 a i bos Y i 7ooooooooVX YI SZ 15 8 Figure 31 AT 8524POE RPS Connector Pin Layout Table 17 lists the RPS connector pins and definitions Table 17 Pin Definitions for the RPS Connector on the AT 8524POE Switch Pin Definition A1 48V Return A2 Return 1 48V 2 48V RS 3 Redundant Power Supply RPS present 4 12V RS 5 12V RS 6 12V 7 3 3V 8 48V 9 48V 10 48V RS 11 RPS GOOD 12 3 3V RS 88 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 3V 89 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
2. Connectors AT 8516F SC Type of Cabling Operating Wavelength Transmitter Output Power 50 125 micron cabling Minimum Maximum 62 5 125 micron cabling Minimum Maximum Receiver Sensitivity Minimum Maximum 100Base FX 100 Mbps 2 km 1 24 mi Dual SC Connector 50 125 micron or 62 5 125 micron core cladding multimode fiber optic cabling 1310 nm 22 5 dBm average 14 dBm average 19 dBm average 14 dBm average 31 dBm average 14 dBm average 85 Appendix A Technical Specifications RS 232 Terminal Port Pinouts Table 15 lists the pin signals on the RS 232 terminal port Table 15 RS 232 Terminal Port Pin Signals Pin Signal Data Carrier Detect Transmit Data Receive Data Data Set Ready Ground Data Terminal Ready Clear to Send Request to Send o O0 oC BR wy bd Ring Indicator 86 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 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 5V DC Remote Sense RS 3 3 V DC RS 3 3 V DC RS 2 5V DC
3. 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 AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide Network Topologies Power Workgroup Topology Collapsed Backbone Topology This section illustrates several of the network topologies you can create with the AT 8500 Series Fast Ethernet switch 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 This provides each end node with a dedicated data link to the switch for best performance and reliability The devices can operate at either 10 Mbps or 100 Mbps LAME Nied Teles AT 8524M rea arce Ca AT 8524M Fast Ethernet Switch gt Legend 10 Mbps Rcx 100 Mbps Figure 9 Power Workgroup Topology In the topology illustrated in Figure 10 an AT 8524M Fast Ethernet Switch connects together 10 100 Mbps Ethernet hubs This type of topology is often referred to as
4. 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 Note Ports 49R and 50R can operate at 1000 Mbps only when set to Auto Negotiation You cannot manually set these ports to 1000 Mbps Duplex Mode The ports can operate in either half or full duplex mode The ports are IEEE 802 3u compliant and will Auto Negotiate the duplex mode If needed Auto Negotiation can be disabled so that you can set the duplex mode manually through the management software Note In order for a 10 100 1000Base T port to successfully Auto Negotiate its duplex mode with an end node the end node should also be using Auto Negotiation Otherwise a duplex mode mismatch can occur A 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 To avoid this problem when you connect an end node with a fixed duplex mode of full duplex to a 10 100 1000Base T port you should use the AT S62 management software to disable Auto Negotiation on the port and set the port speed and duplex mode manually Maximum Distance The ports have a maximum operating distance of 100 meters 328 fe
5. 000405 on the Allied Telesis website at www alliedtelesis com A 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 Warning Do not work on equipment or cables during periods of A lightning activity 41 E2 Warning Power cord is used as a disconnection device To de A energize equipment disconnect the power cord amp E3 A 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 hazardous voltages on accessible metal parts 27 E4 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible amp E5 A 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 All Countries Install product in accordance with local and National Electrical Codes 2 E8 AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide Warning As a safety precaut
6. 8524POE switch adds to the installation and maintenance of your network First because the switch acts as the central power source for your powered devices adding an uninterruptible power source UPS to the switch increases the protection not just to the switch itself from possible power source problems but also to all of the powered devices connected to it This can increase the reliability of your network by minimizing the impact to network operations from a power failure PoE can also simplify the installation of your network A frequent issue in selecting a location for a network device is whether there is a power source nearby This often limits equipment placement or requires the added cost and time of having additional electrical sources installed With PoE you can install PoE compatible network equipment wherever they are needed without having to worry about whether they are near a power source The switch automatically determines whether or not a device connected to a port is a powered device 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 8524POE Layer 2 Fast Ethernet Switch provides a maximum of 15 4 W of power per port on all 24 ports for a total power consumption of 370 W while at the same time furnishing standard 10 100 Mbps Ethernet functionality Th
7. ACT OFF Indicates that there is no activity on the port Flashing Indicates that the port is transmitting and or Green receiving data packets System LEDs The system LEDs on the front panel display general status information as described in Table 9 Table 9 System LEDs LED State Description FAULT OFF Indicates normal operation FLT x Red Indicates that the management software is saving a change to its configuration The LED goes off once the configuration has been saved If the FAULT LED remains on the switch or management software may have experienced a malfunction Refer to Chapter 3 Troubleshooting on page 77 for instructions on how to troubleshoot a problem MASTE Green Indicates that the switch is functioning as the R or master switch of an enhanced stack MSTR 3 q A a OFF Indicates that the switch is a slave switch or is not a member of a stack RPS Green Indicates that an optional redundant power supply is connected to the switch OFF Indicates that there is no optional redundant power supply connected to the switch PWR Green Indicates that the switch is receiving power 36 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 ma
8. EE e PE ce 64 Cabling Fiber Optic PortS HP ti dle 65 Cabling Expansion Modules ui aos 67 Powering on an AC Powered Within 68 Wiring and Powering on an DC Powered Unit sssssssseeenenenen nennen eren nnne neret nene inneren enne 70 Starting a Local Management Session sesssssssseeeeeenene nennen nemen en ern en nennen enhn rennen nnn nennen nnne 73 Lunas eir E 75 Chapter 3 Troubleshooting eri Etude nest no Ges ic O ae Pega n dede 77 PWR LED is Off M 77 twisted Pair Port CINK LED iS OfF 2 5 4 bee ie d aio 77 Fiber Optic Port Link LED Is Off i aie Sie ee ee er ened eee eee ioe 78 PoE Device is Not Receiving POWSTF certet rennen Enero ebat dee nb tese ded ka seue de dh deewhcedveavessdudvhsboubessdberdensedvoscenneacie 79 Fault EED 1s On Continuously 1 A ia 79 Cannot Establish a Local Management Session sse eene nnne nnne ran nennen 80 Appendix A Technical Specifications ooooooononiccccnnnnnccccccnnoconoccncnncnnononcnnnnnnnnnnncnnnnn EEES eret nte ness n nn nr nns SEEE EE EESE nennen 81 Physical Specifications 3 2 aet Qe eet Osh eed A A 81 Environmental Specification S errno eL tie eere eben tt iene as 81 Power Specificatii RR P 82 Safety and Electromagnetic Emissions Certifications essssssseesseeeneeenen nennen enne ennemi nennen 82 RJ 45 Twisted Pair Po
9. 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 Maximum Model Speed Cable Type Operating Distance AT 8516F SC 100 Mbps 50 125 or 62 5 125 Full duplex micron core cladding mode 2 km multimode fiber optic 1 25 mi cable Half duplex mode 412 m 1 360 ft Note For cabling specifications for an optional GBIC module SFP module expansion module or stacking module refer to the installation guide included with the option 53 Chapter 2 Installation Unpacking the Switch 54 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 If any item is missing or damaged contact your Allied Telesis sales representative for assistance O O O One AT 8500 Series Fast Ethernet Switch Two mounting brackets Eight flathead Phillips screws All models except the AT 8524POE switch Twelve flathead Phillips screws AT 8524POE switch only AC power cord AC switches only Americas EC Australia and UK only M
10. 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 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 module 2 Check that the SFP transceiver includes the items listed below If any item is missing or damaged contact your Allied Telesis sales representative for assistance O One SFP module O Installation Guide O Warranty card Note For fiber optic cabling specifications refer to the SFP installation guide provided with the module 3 Follow these guidelines to ensure proper performance of your SFP transceiver O SFP transceivers are static sensitive To prevent Electrostatic Discharge ESD damage follow your normal board and component handling procedures O SFP transceivers are dust sensitive Do not remove the dust cover from the port until you are ready to attach the fiber optic cable O The most common source of contaminants in the optical bore is 62 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 inserti
11. Switches Installation Guide A 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 U Figure 26 Stripped Wire 4 Connect the frame ground wire to the terminal marked with the ground symbol by inserting the wire into the terminal and tightening the connection with a flathead screwdriver as shown in Figure 27 Warning When installing this equipment always ensure that the frame ground connection is installed first and disconnected last E11 Figure 27 Connecting the Stripped Wire 5 Connect the positive feed wire to the terminal block marked 6 Connect the negative feed wire to the terminal block marked A Warning Check to see if there are any exposed copper strands coming from the installed wires When this installation is done correctly there should be no exposed copper wire strands extending from the terminal block Any exposed wiring can conduct harmful levels of electricity to persons touching the wires E12 71 Chapter 2 Installation 72 10 11 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 ap
12. 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 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 European Union Restriction of the Use of Certain Hazardous Substances RoHS in Electrical and Electronic Equipment This Allied Telesis RoHS compliant product conforms to the European Union Restriction of the Use of Certain Hazardous Substances RoHS in Electrical and Electronic Equipment Allied Telesis ensures RoHS conformance by requiring supplier Declarations of Conformity monitoring incoming materials and maintaining manufacturing process controls RFI Emissions FCC Class A EN55022 Class A EN61000 3 2 EN61000 3 3 VC
13. 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 8500 Series switches can operate in either half or full duplex mode The twisted pair ports are IEEE 802 3u compliant and will Auto Negotiate the duplex mode setting for you By allowing the switch to configure the duplex mode for each port you will not need to change the setting for a port on the switch should you replace an end node with an end node that has a different duplex mode capability With Auto Negotiation the switch automatically resets the port to a new duplex mode setting If desired you can disable Auto Negotiation on the switch ports so that you can set the duplex mode manually through the switch s management software 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 Auto Negotiation Otherwise a duplex mode mismatch can occur A switch port using Auto Negotiation defaults to half duplex if it detects that the end node is not using Auto Negotiation This results in a mismatch if the end node is operating at a fixed duplex mode of full duplex Consequently when you connect an end node with a fixed duplex mode of full duplex to a switch port you should use the AT S62 management software to disable Auto Negotiation on the port and set the port speed
14. power budget on the switch is not being exceeded by the powered devices This should not be a problem for the AT 8524POE switch which can support powered devices on all ports 1 to 24 even when all devices require the maximum of 15 4 W Fault LED is On Continuously 79 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 O 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 O If the FAULT LED remains ON try downloading a new version of the switch s management software through the RS 232 terminal port on the front panel of the switch For instructions refer to the switch s software management guide O If the LED remains on even after you have tried the above suggestions the switch may be having a hardware problem Contact your Allied Telesis representative for assistance Cannot Establish a Local Management Session 80 If you are unable to establish a local management session with the switch through the RS 232 terminal port on the front panel do the following O Check to be sure that the RS 232 cable is securely connected to the RS 232 terminal port on the switch and to the RS 232 port on the terminal or personal
15. the DC terminal block at the rear of the switch review the following warning A 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 E9 A tray cable is required to connect the power source if the unit is powered by centralized DC power The tray cable must be a UL listed Type TC tray cable and rated at 600 V and 90 degrees C with three conductors minimum 14 AWG E24 On the rear side of the chassis is a DC terminal block Starting from the left side of the terminal block identify the positive frame ground and negative terminals using the symbols beneath the terminal block or the illustration in Figure 25 For CENTRALIZED po DC INPUT POWER CONNECTION INSTALL ONLY IN A RESTRICTED AREA O 919 9 Positive Negative Ground Figure 25 Positive Ground and Negative Terminals With a 14 gauge wire stripping tool strip the three wires in the tray cable coming from the DC input power source to 8mm 1mm 0 31 in 0 039 in AT 8500 Series Layer 2 Fast Ethernet
16. www alliedtelesis com support rma Select your country from the list displayed on the website Then select the appropriate 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 8500 Series Layer 2 Fast Ethernet Switches have 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 New releases of management software for our managed products are available from either of the following Internet sites r Allied Telesis web site www alliedtelesis com r Allied Telesis FTP server ftp ftp alliedtelesis com If you prefer to download new software from the Allied Telesis FTP server from your workstation s command prompt you will need FTP client software and you must log in to the server Enter anonymous for the user name and your email address for the password 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 This chapter contains the following sections Model Configurations on page 16 Model Descriptions on page 17 Port Descriptions on page 22 Power Over Ethernet on page 27 GBIC and SFP S
17. 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 8524POE Layer 2 Fast Ethernet Switch should also work with most legacy PD s as long as the device can be powered 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 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 You can use the modules to extend the distance of your network build a high speed backbone network between switches or connect additional end nodes to the network such as high speed servers Figure 6 shows an example of a fiber optic GBIC and Figure 7 shows an SFP transceiver Figure 7 SFP Transceiver When you install a G
18. 9 AT 8550GB A Eit 20 AT 8550S M T HP 21 Port Descriptions Aci 22 10 100Base TX Twisted Pair Ports eire rediere id 22 10 100 1000Base T Twisted Pair Ports cummins 24 100Base FX Fiber Optic POTS voor od etc pida Dna ende SE Fe FREE de dn 25 ls ied mur 27 Power Budgetirng 2 deri A a 27 Implementation merran rer Ere eoe E dete ee esee a d e bue ee ee PR RE poe dd vg ee ee ve re 28 GBIG land SFP lecce 29 Module Expansion Slots octo eee d lich deste etre Sheth n rp lee spesso trate toc wlth eel Seeds ci ed ce dec ces 30 Ei ERRARE LATAU MAL LT 31 Twisted Pair Port LEDs and the LED Mode Select Button ooooocccocccnnnocccononcnnonononnnnnc conc cor non cnn nn eem emen nre 31 Fiber Optic Port LEDS in etna ettet e et tete 34 GBIC and SEP Expansion Slot EEDS 2 Innen ep iba 35 SYSTEM EEDS ert tore A temo reiner tones 36 RS 232 Terminal Portuaria aaa cb 37 Power Options and Connectors cnet ottiene redet diede cti 38 RPS CONNECTION ienie aiae cei ii 38 ACG Power Connector 1 gei p eee e i ede its 39 DC Power Connector ss sia E 39 A Few Basics about Ethernet Switching enne enrnen nennen ran rra nennen nnn nen ener 40 MAC Address Table ete ed up RIO nior e RR xe eit 40 IB dne HEE ijas 40 otore
19. AC Power Cord 60 Connecting the RPS DC Cable 61 Positive Ground and Negative Terminals 62 Stripped Wire 63 Connecting the Stripped Wire 63 Connecting an RS 232 Cable to the RS 232 Terminal Port on an AT 8524M Switch 65 RJ 45 Connector and Port Pin Layout 75 RPS 16 pin Molex Connector Pin Layout 79 AT 8524POE RPS Connector Pin Layout 80 Dual SC Connector 82 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 AT 8516F SC Switch Front and Back Panels sesssesseee eene nrren nne enne nns 17 AT 8524M Switch Front and Back Panels oooconocccnncoccncoccccnnonccnnnncnonon cc conocio non cnn nan nennen EENAA EAE nen nene entren nns 18 AT 8524POE Switch Front and Back Panels esssssseseeeene emen nne errem nene nennen nns 19 AT 8550GB Switch Front and Back PanelS ooonconcccconoccccnncnccnnccnnoncncnnonornnn cnn nan nnrnnn nn nn eene nennen nenne enn rennes 20 AT 8550SP Switch Front and Back Panels ssssssssseeeeee nennen nennen narran rra 21 GBIG on E 29 oEP Trarnscelver 5 ut Sates estas OUR ee RAEE 29 AT RPS3004 Redundant P
20. AT 8500 Series Layer 2 Fast Ethernet Switches AT 8516F SC AT 8524M AT 8524POE AT 8550GB AT 8550SP Installation Guide AVE Allied Telesis Copyright O 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
21. BIC or SFP in Port 49 or Port 50 and the module establishes a link with its end node the corresponding twisted pair port Port 49R or 50R changes to a redundant status A link on a GBIC or SFP port always takes precedence over that of the corresponding 10 100 1000Base T twisted pair port For a list of the GBIC and SFP modules supported by the AT 8550GB and AT 8550SP switches contact your Allied Telesis sales representative or refer to our web site at www alliedtelesis com 29 Chapter 1 Overview Module Expansion Slots 30 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 O Twisted Pair Port LEDs and the LED Mode Select Button next O Fiber Optic Port LEDs on page 34 O GBIC and SFP Expansion Slot LEDs on page 35 O System LEDs on page 36 Twisted Pair Port This section applies to the AT 8524M AT 8524POE AT 8550GB and LEDs and the 1 95508P switches LED Mode Select Button The port LED
22. CI 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 TUV UL 60950 cULys 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 11 Safety Symbols Used in this Document ssssssssssssessseseeeeeeen nennen nnne en nene 12 Where to Find Web based Guides mee ode e A lees dte 13 Contacting Allied MEC rm asia 14 Online SUpport eee Em 14 Email and Telephone Support siisii iie teint A aede de dece denne eiue 14 Returning Products cc 14 For Sales or Corporate Information issus iscissi eiecti eret oie 14 EN A eoe a reset eee ease der E NE AEN E ERR SEE FERRE SPEED O ue tace ra eral 14 Management Software Updates siirtotien iodine citado 14 Chapter 1 OVerVIewW i onn i Rees I D reso ker R Era HERE ad asepsia 15 Model Configurations en 16 Model Descriptions PE 17 BATERIA iS 17 AT 8524M O Rer SERE ee FDA NES R EM PET ay datenan GE ER nies Rt ee re AGERE Te Ri ter re eps 18 AT 8524 POE aC 1
23. Dual SC Connector 90
24. E EERE RPS INPUT LI A L L nu n A A 9 ALLELLA a rit TTT TTT tT TTT TY El p Power Connector RPS Connector RS 232 Terminal Port Figure 4 AT 8550GB Switch Front and Back Panels 20 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 They have RJ 45 connectors require Category 5 or 5E 100 ohm twisted pair cable and have a maximum operating distance of 100 meters 328 feet There are also two slots for two Small Form factor Pluggable SFP transceivers You can use the slots to add 1000Base X fiber optic ports to the switch For a list of supported SFP transceivers contact your Allied Telesis sales representative or refer to the Allied Telesis web site www alliedtelesis com Note The twisted pair ports 49R and 50R change to a redundant status when SFP transceivers are installed and establish links with their end nodes A link on an SFP port always takes precedence over that of the corresponding 10 100 1000Base T twisted pair port Figure 5 shows the front and back panels of the AT 8550GB swi
25. a collapsed backbone topology The switch functions as the focal point of the network by acting as a bridge between the different workgroups The switch transfers an Ethernet frame from hub to hub only when the destination end node for the frame is on a different hub 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 43 44 Chapter 1 Overview Mixed Topology cc EEES mil AT 8524M Fast Ethernet Switch Ethernet Hubs Legend 10 Mbps SS 100 Mbps Figure 10 Collapsed Backbone Topology 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 If the switches are further apart then you can use fiber optic 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 AT 8524M Fast Ethernet Switch AT 8524M Fast Ethernet Switc
26. acket on the other side of the switch using the four remaining screws 6 Mount the switch in the 19 inch rack using standard screws not provided A 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 A lightning activity 41 E2 Warning Power cord is used as a disconnection device To de A energize equipment disconnect the power cord E3 Warning Class Equipment This equipment must be earthed A The power plug must be connected to a properly wired earth ground socket outlet An improperly wired socket outlet could place hazardous voltages on accessible metal parts 4 7 E4 Pluggable Equipment The socket outlet shall be installed near the equipment and shall be easily accessible amp E5 56 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 amp E6 Warning Operating Temperature This product is designed for a maximum ambient temperature of 40 degrees C amp E7 Circuit Overloading Consideration should b
27. anagement cable for local management Documentation CD Warranty card 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 Method A Flush with front of rack Method B 4 5cm 1 75 in Method C 18 4 cm 7 25 in Method D 21 6 cm 8 5 in Figure 12 Rack Mount Bracket Positions Note The AT 8524POE switch only supports Method A Perform the following procedure to install the switch in a standard 19 inch rack If you are not installing the switch in a rack proceed to Installing an Optional GBIC on page 60 1 Place the unit upside down on a level secure surface 55 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 br
28. and duplex mode manually These Fast Ethernet switches use store and forward as the method for receiving and transmitting frames When an 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 41 Chapter 1 Overview 42 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 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 After the switch is ready to receive data again the switch stops forcing collisions
29. and or Green receiving data packets D C Green Indicates that the port is operating in full duplex mode Amber Indicates that the port is operating in half duplex mode Flashing Indicates that data collisions are occurring on Amber the port Note The AT 8516F SC switch does not have an LED Mode Select button The GBIC and SFP slots on the AT 8550GB and AT 8550SP switches respectively have two LEDs The LEDs display the operating status of the fiber optic port Use the Mode Select button on the switch to toggle the status information displayed by the MODE LED The LEDs are defined in Table 8 Table 8 LEDs for the Optional GBIC and SFP Ports on an AT 8550GB and AT 8550SP Switches LED State Description LINK OFF Indicates that there is no link between the port and the end node Solid Indicates a valid link has been established Green between the port and the end node Mode COL OFF Indicates that no data collisions are occurring on the port Flashing Indicates that data collisions are occurring Green on the port 35 Chapter 1 Overview Table 8 LEDs for the Optional GBIC and SFP Ports on an AT 8550GB and AT 8550SP Switches LED State Description Mode SPD Solid Indicates that the port is operating at 1000 Green Mbps Mode FDX OFF Indicates that the port is operating in half duplex mode Solid Indicates that the port is operating in Green full duplex mode Mode
30. apable 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 They have RJ 45 connectors require Category 5 or 5E 100 ohm twisted pair cable and have a maximum operating distance of 100 meters 328 feet The switch also has two slots for two Gigabit Interface Converters GBICs You can use the GBICs to add 1000Base X fiber optic ports to the switch to extend the distance of your network For a list of GBICs supported by the switch contact your Allied Telesis sales representative or refer to the Allied Telesis web site www alliedtelesis com Note The twisted pair ports 49R and 50R change to a redundant status when GBICs are installed and establish links with their end nodes A link on a GBIC port always takes precedence over that of the corresponding 10 100 1000Base T twisted pair port Figure 4 shows the front and back panels of the AT 8550GB switch 10 100 1000Base T Ports Port LEDs Eds E LL Tele Sn ATSSDDGB Fast Ethern e suus m Os mU UT 7 T T LE E EET ae ES e E q m 3332 GBIC Slots 10 100Base TX Ports LED Mode Select Button 100 240V4 SERRE ERR EN A EER
31. arid A O M NR TRETEN E EFIE DAE ER Ee RERO ER E RE eer Re MT 41 Back Pressure and Flow Controls iiaeiai e ii 41 Network Topologles in A eade 43 Power Workgroup Topology 5 ette tite ttr eene duc eget damen ug tui MSS oua us eun db xu exe ase oder Exon d en aane sr epe dtes 43 Collapsed Backbone Topology sssssssssssssssssssseseeeenenneh ennt RAR RRE RR RRE RR sina snnt ness enn SEEE 43 elKeeojes Rc EE 44 Chapter 2 Installation ooococconnnnconncoooooooonnnnnnnnnonononcncncnnonononannnnnnnnno nono nn e isis is isis sias senses cass eee ne seines sais asses e nnne 47 Reviewing Safety Precautions civic oia 48 Contents Selectirig a Site for the SWIECh uote tte ia 51 Planningithe R EIAS SES PCTH MS 52 Unpacking the Switch a mm RE ERE A RR EROR Eee 54 Installing the Switch ina RACK rco cete Pec eed coni creed Aero 55 Installing an Optional Expansion or Stacking Module ssseseeeeen ene een menm en errem eene nns 58 Installing an Optional GBIG e eec rne tie He dnte eR hee UR Rogue dee AE gren Eee ud e Eden dme E eee dg ne doch 60 Installing an Optional SFP Transceiver essssssseeeeeene nene ennemi nene nnenen enr in nene entre en eere en nennen nenne 62 Cabling the Switch eei eq dete eue dee ie ter fele o ead 64 Cabling Twisted Pair Ports a E HE ee RU eric e
32. art 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 Ensure that the circuit breaker is in the Off position Connect the DC wires to the circuit breaker Refer Power Specifications on page 82 for power requirements Power on the circuit breaker 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 The switch runs a series of self diagnostic tests which take a few seconds to perform After the self tests are complete the switch is ready for normal network operations A Warning This unit might have more than one power cord To reduce the risk of electric shock disconnect all power cords before servicing the unit E30 No further installation steps are required if you do not intend to change the default operating parameter settings of the switch which are listed in the AT S62 Management Software User s Guide However if you want to manage the switch refer to Starting a Local Management Session on page 73 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 parameter
33. ating at the same speed and duplex mode AT 8550GB and AT 8550SP switches only Verify that the GBIC module or SFP module is completely inserted into the expansion slot on the front of the switch A 1000Base connection can take from five to ten seconds to establish a link PoE Device is Not Receiving Power If you attached a powered device to a port on an AT 8524POE the PoE LED for the port should be green Remember to use the Mode Select button to toggle the Mode LEDs to the PoE state If the device is not receiving power or the PoE LED is flashing amber steady amber or is OFF do the following o Check to be sure that the powered device is designed to receive power over pins 1 2 3 and 6 on the RJ 45 port This can be verified by reviewing the device s documentation or data sheet Check that the device s power requirements do not exceed 15 4 W This can be verified by reviewing the device s documentation or data sheet Verify that the twisted pair cable is Category 5 or 5E Verify that the twisted pair cable is not faulty Use the AT 862 management software to determine whether PoE is enabled on the switch and the port The default setting for PoE is enabled Use the management software to determine whether the PoE power setting for the port has been reduced from the default setting of 15 4 W to a value below the power requirements of the device PoE is not supported on expansion modules Verify that the
34. bps Green Indicates that the port is operating at 100 Mbps Mode SPD OFF Indicates that the port is operating at 10 AT 8550GB Mbps and AT 8550SP Green Indicates that the port is operating at 100 Mbps Mode FULL OFF Indicates that the port is operating in half AT 8524M duplex mode Green Indicates that the port is operating in full duplex mode MODE FDX OFF Indicates that the port is operating in half AT 8550GB duplex mode and AT 8550SP Green Indicates that the port is operating in full duplex mode Mode ACT OFF Indicates that there is no activity on the port Flashing Indicates that the port is transmitting and or Green receiving data packets Table 5 describes the LEDs for the 10 100 1000Base TX twisted pair ports Ports 49R and 50R on the AT 8550GB and AT 8550SP switches Table 5 LEDs for Ports 49R and 50R on the AT 8550GB and AT 8550SP Switches LED State Description LINK OFF Indicates that there is no link between the port and the end node Green Indicates a valid link has been established between the port and the end node Mode COL OFF Indicates that no data collisions are occurring on the port Flashing Indicates that data collisions are occurring on Green the port 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 State Descr
35. computer O Check to be sure that you are using a straight through RS 232 cable Do not use a cross over cable O Check to be sure that the operating parameters on the terminal or the terminal emulation program if you are using a personal computer have been set correctly The default settings for Planning the Installation on page 52the RS 232 terminal port can be found in See Planning the Installation on page 52 Appendix A Technical Specifications Physical Specifications AT 8516F SC and AT 8524M Dimensions AT 8550GB and AT 8550SP Dimensions AT 8524POE Dimensions Weight AT 8516F SC AT 8524M AT 8524POE AT 8550GB AT 8550SP Recommended Minimum Ventilation on All Sides Environmental Specifications 4 4 cm x 44 0 cm x 22 2 cm 1 75 in x 17 3 in x 8 75 in HxWxD 4 4 cm x 44 0 cm x 25 5 cm 1 75 in x 17 3 in x 10 0 in HxWxD 4 4 cm x 43 8 cm x 40 6 cm 1 75 in x 17 25 in x 16 0 in HxWxD 3 4 kg 7 4 Ib 3 2 kg 7 1 Ib 6 0 kg 13 3 Ib 3 6 kg 7 9 Ib 3 5 kg 7 7 Ib 10 cm 4 0 in Operating Temperature Storage Temperature Operating Humidity Storage Humidity Maximum Operating Altitude 0 C to 40 C 32 F to 104 F 25 C to 70 C 13 F to 158 F 596 to 9096 non condensing 596 to 9596 non condensing 4 000 m 13 000 ft Maximum Non operating Altitude 4 000 m 13 000 ft 81 Appendix A Technical Specifications Power Specificatio
36. d the transmitter fiber connector is connected to the receiver connector on the remote node Make sure that you are using the appropriate type of fiber optic cable and that the cable length does not exceed the allowed maximum distance For an AT 8516F Series switch refer to Planning the Installation on page 52 For an optional GBIC or SPF module or other expansion module refer to the Installation Guide shipped with the module Use a fiber optic tester to test the attenuation on the cable to determine if the strength of the fiber optic signal falls below acceptable limits For fiber optic port specifications for an AT 8516F Series Switch refer to AT 8516F SC Fiber Optic Port Specifications on page 85 For an optional GBIC or SPF module or other expansion module refer to the Installation Guide shipped with the module Check that the operating specifications for instance wavelength and maximum operating distance of the fiber optic port on the remote end node are compatible with the fiber optic port on the switch For 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 oper
37. e 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 Note Auto Negotiation is activated as the default on all twisted pair ports on the switch To deactivate Auto Negotiation and set the speeds manually refer to the AT S62 Management Software User s Guides Duplex Mode 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 will Auto Negotiate the duplex mode setting If desired you can disable Auto Negotiation on one or all of the switch ports so that you can set the duplex mode manually through the switch s management software 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 Auto Negotiation 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 To avoid this problem when you connect an end node with a fixed duplex mode of full duplex to a switch port you should use the AT S62 management software to disable Auto Negotiation on the port and set the port
38. e 15 Installing a Module 7 Using a Phillips screwdriver tighten the captive screws as shown in Figure 16 to secure the module in the switch Figure 16 Securing the Module in the Expansion Slot Caution Always use the captive screws to secure the module to the switch Leaving a module partially seated may cause the system to halt and subsequently crash Note When you remove a module store the device in an antistatic bag or immediately install it in another switch 59 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 Be sure to observe all standard electrostatic discharge ESD precautions such as wearing an antistatic wrist strap to avoid damaging the module 2 Check that the GBIC package includes all the items listed below If any item is missing or damaged contact your Allied Telesis sales representative for assistance O One GBIC module O Installation Guide O Warranty card Note For fiber optic cabling specifications refer to the GBIC
39. e AT 8524POE smart power management functionality supports any combination of Ethernet ports 1 24 that supply power for IEEE 802 3af Class 0 1 2 or 3 powered devices up to a maximum of 370 watts as 27 Chapter 1 Overview 28 Implementation described in Table 3 Table 3 IEEE 802 3af Class vs Power Levels Minimum Power Maximum Power Class Usage Levels 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 8524POE Layer 2 Fast Ethernet Switch is Alternative A where power is transmitted over strands 1 2 3 and
40. e eeeenaece ee enne eee anno nnnn nn enrtns sensn nn tentes e nnn tentes nnn 52 Fiber Optic Cabling and Distances netter e eei eri nnne tpe eerie teer gren niii 53 10 100Base TX Port MDI MDI X Pin Signals seen enn enm en nennen nnn 83 10 100Base T Port MDI MDI X Pin Signals with POE sssseeeeneenm em nemen enne 83 MDI and MDI X Pin Signals 1000Base T esee nennen ennennenrnen nennen nania nennen nnne 84 RS 232 Terminal Port Pin Signals 7 peer e Vbi odo ue eae ee aba 86 Pin Definitions of the 16 pin RPS Connector sssssssssseseeeneneen eene enne eene en nr nennen 87 Pin Definitions for the RPS Connector on the AT 8524POE Switch ess mee 88 Tables Preface This guide provides the hardware installation instructions for you managed Layer 2 AT 8500 Series 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 A result in equipment damage or loss of data Warning Performing or omitting a specific action may A result in electrical shoc
41. e 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 41 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 rated 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 41 E37 57 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 y
42. e to a dual SC port be sure that the receiver fiber connector is connected to the transmitter connector on the remote end node and the transmitter fiber connector is connected to the receiver connector on the remote node Transmitter Fiber Connector Receiver Fiber Connector Figure 22 Dual SC Port You should verify that you are using the appropriate type of fiber optic cabling For an AT 8516F xx Series switch refer to Planning the Installation on page 52 For an optional GBIC module refer to the GBIC installation guide For an optional fiber optic expansion module refer to the expansion module installation guide You should verify that the operating specifications of the switch s fiber optic port are compatible with the fiber optic port on the 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 O lf your network topology will contain a loop where two or more network devices can communicate with each other over more than one data path do not connect the network cables forming the loop until after you have activated a spanning tree pr
43. e to the RS 232 Terminal Port on an AT 8524M Swvitch sess 73 RJ 45 Connector and Port Pin Layout eee cee eeeee nesses nono nc nn cnnnno rra 83 RPS 16 pin Molex Connector Pin Layout nnnm nennen enn en nne enne EAEan EEEn 87 AT 8524POE RPS Connector Pin Layout sssssese eene nennen nennen nennen naar rr rn ner nennen 88 Dual SC COmMO cts E 90 Tables Table 1 Table 2 Table 3 Table 4 Table 5 Table 6 Table 7 Table 8 Table 9 Table 10 Table 11 Table 12 Table 13 Table 14 Table 15 Table 16 Table 17 Safety SYMDOIS ie 12 Model Configurations comi eoe Dite I eta ret suede Sacre Pede Toce de Pene Sea e de dne erede dee 16 IEEE 802 3af Class vs Power Levels inicio d 28 LEDs for the 10 100Base TX Twisted Pair Ports on the AT 8524M AT 8550GB and AT 8550SP Switches 31 LEDs for Ports 49R and 50R on the AT 8550GB and AT 8550SP Switches sse 32 LEDs for the 10 100Base TX Twisted Pair Ports on the AT 8524POE Switch sseee 33 LEDs for the Fiber Optic Ports on the AT 8516F SC Switch esses eene enn nennen 35 LEDs for the Optional GBIC and SFP Ports on an AT 8550GB and AT 8550SP Switches 35 5ystenr EEDSs A E e i OE cab usep yas CER D HERE ERR e sacaewseceas Aida 36 Twisted Pair Cabling and Distances 0 c ccccccececeeeeceeceeeeeseeae ce
44. er 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 If the LED is OFF indicating that the unit is not receiving power do the following O Make sure that the power cord is securely connected to the power source and to the AC connector on the back panel of the switch O Verify that the power outlet has power by connecting another device to it D Try connecting the unit to another power source O Try using a different power cord O Check that the voltage from the power source is within the required levels for your region Twisted Pair Port Link LED is Off For twisted pair ports verify that the LINK LED for each port is ON If a Link LED is OFF do the following O Verify that the end node connected to the port is powered ON and is operating properly O Check that the twisted pair cable is securely connected to the port on the switch and to the port on the end node O Make sure that the twisted pair cable does not exceed 100 m 328 ft TT Chapter 3 Troubleshooting o Verify that you are using the appropriate category of twisted pair cable Category 3 or better for 10 Mbps operatio
45. ers routers and other Ethernet switches so that they can communicate with each other by sending and receiving Ethernet frames 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 For example the network interface cards that you install in your computers have a unique MAC address assigned to them by the adapter manufacturers An AT 8500 Series Fast Ethernet Switch has a MAC address table capable of storing up to 8 000 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 result 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 packet to the appropriate por
46. et Type of Cable 100Base FX Fiber Optic Ports 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 BE 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 This feature allows you to use a straight through twisted pair cable to connect any type of device to a port Note The auto MDI MDI X feature on a 10 100 1000Base T port is functional only when the port is set to Auto Negotiation If you disable Auto Negotiation and set the port s speed and duplex mode manually the port defaults to MDI X For instructions on configuring a port refer to the AT S62 Management Software User s Guides Port Pinouts For the pinouts of these ports when operating at 10 or 100 Mbps refer to Table 12 on page 83 For port pinouts when the ports are operating at 1000 Mbps refer to Table 14 on page 84 This section applies to the AT 8516F SC switch Type of Connector The fiber optic ports on the AT 8516F SC switch have dual SC connectors Speed The fiber optic ports have a fixed operating speed of 100 megabits per second Mbps The speed cannot be changed Duplex Mode The fiber optic ports can operate in either half or ful
47. h AT 8524M Fast Ethernet Switch y Y Legend e a Y 10 Mbps 100 Mbps y j 1000 Mbps l wee Fiber Optic Figure 11 Mixed Topology 45 Chapter 1 Overview 46 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 page 62 Cabling the Switch on page 64 Powering on an AC Powered Switch on page 68 Wiring and Powering on an DC Powered Unit on page 70 Starting a Local Management Session on page 73 uuuuuuuuul uu uu amp ulw ulu iu Warranty Registration on page 75 Note To install an optional redundant power supply refer to the installation guide included with the unit 47 Chapter 2 Installation Reviewing Safety Precautions 48 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
48. installation guide provided with your module 3 Follow these guidelines to ensure proper performance of your GBIC O GBIC modules are dust sensitive When the GBIC is stored or when a fiber optic cable is not plugged in always keep plugs in the GBIC optical bores O The most common source of contaminants in the optical bore is debris picked up on the ferrules of the optical connectors as shown in Figure 17 Use an alcohol swab or wipe to clean the 60 AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide ferrules of the optical connector 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 Figure 18 Installing a GBIC Module 5 If you purchased two GBIC modules for the switch repeat this procedure to install the second module Note Unnecessary removal and insertion of a GBIC can lead to premature failure 61 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
49. ion 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 E9 Warning Do not strip more than the recommended amount of wire Stripping more than the recommended amount can create a safety hazard by leaving exposed wire on the terminal block after installation E10 Warning When installing this equipment always ensure that the frame ground connection is installed first and disconnected last amp E11 Warning Check to see if there are any exposed copper strands coming from the installed wire When this installation is done correctly there should be no exposed copper wire strands extending from the terminal block Any exposed wiring can conduct harmful levels of electricity to persons touching the wires amp E12 This system works with positive grounded or negative grounded DC systems amp E13 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 u
50. iption Mode SPD OFF Indicates that the port is operating at 10 or 100 Mbps Green Indicates that the port is operating at 1000 Mbps Mode FDX OFF Indicates that the port is operating in half duplex mode Green Indicates that the port is operating in full duplex mode Mode ACT OFF Indicates that there is no activity on the port Flashing Indicates that the port is transmitting and or Green receiving data packets Table 6 describes the LEDs for the 10 100Base TX twisted pair ports on the AT 8524POE switch Table 6 LEDs for the 10 100Base TX Twisted Pair Ports on the AT 8524POE Switch LED State Description L A OFF Indicates that the port has not established a link with its end node Steady Indicates the port has established a valid Green 100 Mbps link with its end node Flashing Indicates the port is receiving or transmitting Green packets at 100 Mbps Steady Indicates the port has established a valid 10 Amber Mbps link with its end node Flashing Indicates the port is receiving or transmitting Amber packets at 10 Mbps 33 Chapter 1 Overview 34 Table 6 LEDs for the 10 100Base TX Twisted Pair Ports on the AT 8524POE Switch Continued LED State Description Mode DC OFF Indicates that the port has not established a valid link with its end node Steady Indicates that the port is operating in full Green duplex
51. itches The AT RPS3104 unit is used with the AT 8524POE switch Do not use the AT RPS3004 unit with the AT 8524POE switch A redundant external power supply comes with one pre installed power module and has three empty slots for additional power modules Each power module can support one switch making the unit capable of supporting up to four switches simultaneously 38 Figure 8 AT RPS3004 Redundant Power Supply Unit Note DC models of the AT 8500 Series switches do not feature an RPS connector AC Power Connector DC Power Connector AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide 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 Some models of the AT 8500 Series switch are offered with a DC terminal block on the back panel instead of an AC socket for those network installations that require DC equipment Refer to Appendix A Technical Specifications on page 81 for the input voltage range and Wiring and Powering on an DC Powered Unit on page 70 for instructions on how to wire a DC powered unit 39 Chapter 1 Overview A Few Basics about Ethernet Switching 40 MAC Address Table Duplex Mode An Ethernet switch interconnects network devices such as workstations print
52. k 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 Online Support Email and Telephone Support Returning Products For Sales or Corporate Information Warranty Management Software Updates 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
53. l duplex mode You can set the duplex mode manually or allow the switch to set it automatically through Auto Negotiation Maximum Distance Each fiber optic port has a maximum operating distance of two kilometers 1 25 miles when operating in full duplex mode and 412 meters 1 360 feet when operating in half duplex mode 25 Chapter 1 Overview 26 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 Power Budgeting 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 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 telephones web cams 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 There are several advantages that the PoE feature of the AT
54. lines m m An RJ 45 connector should fit snugly into the port on the switch The tab on the connector should lock the connector into place Because 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 If you disable Auto Negotiation on a port the auto MDI MDI X feature is disabled and the port defaults to MDI X For instructions on how to configure a port refer to the AT S62 Management Software User s Guides If your network topology will contain a loop where two or more network devices can communicate with each other over more than one data path do not connect the network cables forming the loop until after you have activated a spanning tree protocol on the switch Data loops can adversely affect network performance For information on spanning tree refer to the AT S62 Management Software User s Guides If you are creating a port trunk do not connect the cables of the trunk to the switch until you after have configured the trunk using the switch s management software Connecting the trunk cables to the switch before you have configured the software will result in a data loop which can adversely affect network performance For 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 O When yo
55. lots on page 29 Module Expansion Slots on page 30 LEDs on page 31 RS 232 Terminal Port on page 37 Power Options and Connectors on page 38 A Few Basics about Ethernet Switching on page 40 uuuuuuuaulz lutuiuiu Network Topologies on page 43 Chapter 1 Overview Model Configurations Table 2 lists the basic model configurations Table 2 Model Configurations Model 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 8524POE 24 10 100Base TX ports with Power Over Ethernet technology plus two expansion slots for optional fiber optic and twisted pair port expansion modules AT 8550GB 48 10 100Base TX ports two 10 100 1000Base T ports and two expansion slots for optional GBIC modules AT 8550SP 48 10 100Base TX ports two 10 100 1000Base T ports and two expansion slots for optional SFP 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 me
56. mode Steady Indicates that the port is operating in half Amber duplex mode Flashing Indicates that the port is operating in half Amber duplex mode and that data collisions are occurring on the port Mode POE OFF Indicates that the device connected to the port is not a powered device and does not require PoE Green Indicates that the end node is a powered device and that the port is providing power to it Steady Indicates that the port experienced a Amber problem providing PoE to the end node For further information refer to Chapter 3 Troubleshooting on page 77 Flashing Indicates that the port is connected to a Amber powered device but that providing power to it would exceed the maximum PoE power budget of the switch For further information refer to Chapter 3 Troubleshooting on page 77 Fiber Optic Port This section applies to the AT 8516F SC switch The fiber optic ports on LEDs 8nAT 8516F SC switch have two LEDs labeled L A and D C The LEDs GBIC and SFP Expansion Slot LEDs are defined in Table 7 AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide Table 7 LEDs for the Fiber Optic Ports on the AT 8516F SC Switch LED State Description L A 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 Indicates that the port is transmitting
57. n 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 However if you disable Auto Negotiation on a port and set a port s speed and duplex mode manually the port defaults to MDI X For port pinouts refer to RJ 45 Twisted Pair Port Pinouts on page 83 Make sure that the operating parameters of the port on the switch are compatible with the end node to which the port is connected This may require that you use the switch s management software For instructions refer to the AT S62 Management Software User s Guides Fiber Optic Port Link LED is Off 78 For fiber optic ports verify that the LINK LED for each port is ON If a LINK LED is OFF do the following o m Verify that the end node connected to the port is powered ON and is operating properly Check that the fiber optic cable is securely connected to the port on the switch and to the port on the end node Dual SC ports consist of two separate connectors as shown in Figure 32 on page 90 Each connects to a separate fiber strand One is for receiving data and the other is for transmitting data When connecting a fiber optic cable to an SC port be sure that the receiver fiber connector is connected to the transmitter connector on the remote end node an
58. nagement 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 If the default switch settings are adequate for your network you can use the unit as an unmanaged switch For the default settings refer to the AT S62 Management Software User s Guides The RS 232 terminal port has a DB 9 female connector and uses a straight through RS 232 cable included with the switch The default settings for the RS 232 terminal port are Baud rate 9600 bps Data bits 8 Parity None Stop bits 1 Flow control None u uuu iu Note These settings are for a DEC VT100 or ANSI terminal or an equivalent terminal emulation program 37 Chapter 1 Overview Power Options and Connectors RPS Connector This section provides information about the power options and features on the AT 8500 Series switches oO RPS Connector next D AC Power Connector on page 39 o 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 A redundant power supply unit can provide power to the switch in the event the switch s internal power supply should fail Note The AT RPS3004 unit is used with the AT 8516F SC AT 8524M AT 8550GB and AT 8550SP sw
59. ns Input Voltage All models except for the AT 8524POE AC DC AT 8524POE AC 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 3af Mode 100 240 VAC 2A Max 50 60 Hz 36 60 VDC 4A Max 100 240 VAC 6A Max 50 60 Hz 74 watts 450 watts 370 W 48 VDC Max 24 ports Max 24 ports Alternative A MDI Safety and Electromagnetic Emissions Certifications EMI Immunity Safety Quality and Reliability 82 FCC Class A EN55022 Class A VCCI Class A C TICK EN61000 3 2 EN61000 3 3 EN55024 UL 60950 UL EN60950 TUV MTBF gt 90 000 hrs MTTR 1 2 hr 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 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 10 100Base TX Port MDI MDI X Pin Signals Pin MDI Signal d 1 TX RX 2 TX RX 3 RX TX 4 Unused Unused 5 Unused Unused 6 RX TX 7 Unused Unused 8 Unused Unused Table 13 lists the RJ 45 port pin signals on the 10 100Base TX ports on an AT 8524POE switch Table 13 10 100Base T Port MDI MDI X Pin Signals wi
60. on 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 Slide the SFP transceiver into an SFP slot on the switch The SFP module can be installed in either slot The SFP module is seated in the slot when it clicks into place 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 slot When you do remove the plug keep it for future use Note Unnecessary removal and insertion of an SFP transceiver can lead to premature failure 7 f you purchased two SFP transceivers for the switch repeat this procedure to install the second transceiver For information about cabling for the SFP transceiver consult the documentation that was shipped with the SFP 63 Chapter 2 Installation Cabling the Switch 64 Cabling Twisted Pair Ports To connect the data cables to the switch ports and to apply power to the switch perform the following procedure 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 Figure 19 Connecting the Twisted Pair Data Cables When you connect a twisted pair cable to a port observe the following guide
61. one 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 lt CTRL gt B to go to Boot Prompt This message is intended for manufacturing purposes only If you inadvertently display the boot prompt gt type boot and press Return to start the switch 4 Press Return You are prompted for a user name and password To view and configure all of the switch s operating parameters enter the login name manager The default password for manager access is friend To only view the parameter settings enter the login name operator The default password for operator access is operator The user names and passwords are case sensitive The Main Menu is displayed If you logged in with manager access you can now fully manage the switch using the management interface For instructions refer to the AT S62 Management Software User s Guides The guides are available from the Allied Telesis web site at www alliedtelesis com and on the CD included with the switch 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 75 Chapter 2 Installation 76 Chapter 3 Troubleshooting This chapt
62. otocol on the switch Data loops can adversely affect network performance For information on spanning tree refer to the AT S62 Management Software User s Guides O If you are creating a port trunk do not connect the cables of the trunk to the switch until you after have configured the trunk using the switch s management software Connecting the trunk cables to the switch before you have configured the software will result in a data loop which can adversely affect network performance For instructions on how to configure a port trunk refer to the AT S62 Management Software User s Guides Cabling If you installed a fiber optic or twisted pair expansion module stacking Expansion module GBIC module or SFP module connect the data cable to the port on the module Modules 67 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 A Warning The power cord is used as a disconnection device To de energize equipment disconnect the power cord E3 Figure 23 Connecting the AC Power Cord 3 Plug the other end of the power cord into a wall outlet When power is applied the
63. ou 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 Note You must use the original shipping material if you need to return the module to Allied Telesis Warning An expansion or stacking module 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 module Refer to the module s installation guide for a list of the items included with the option If any item is missing or damaged contact your Allied Telesis sales representative for assistance 2 Locate the expansion slots on the left side of switch 3 Using a Phillips screwdriver loosen the captive screws on the faceplate and remove it as shown in Figure 14 Figure 14 Removing the Expansion Slot Faceplate 58 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 Figur
64. ower Supply Unit eese ennemi nns 38 Power Workgroup TOpoloQy inne eve tinea eee eee el ve e VEO E RYE 43 Collapsed Backbone Topology 2 iriure eterne idioteces 44 Mixed TOPOlOGY enei E 45 Rack MouritBracket Positlons 2 dc 55 Removing the Feet I a tes ete eri nce 56 Removing the Expansion Slot Faceplate i e ceeseceeeeceeeeeeeeeeeaeeeeeeeeeeeaeeeeeaaeeceeeeeeseeeseaeeseeeeessieeeseaeeeseeeees 58 Installing a ure 59 Securing the Module in the Expansion Slot enne enne nnne enne 59 Optical Bore and Ferrule of GBIC Module oooooocconnoccccnconcnonoccnonono conan nor nnnn conan eene eem nennen enne nennen nenne enne 61 Installing a GBIC Module ooooocococccconocccononcncnoncnononcnnn nono nono nennen enne nennen nerit een nrns ener rentre entre nennen nnns 61 Connecting the Twisted Pair Data Cables sse eee nenen nnnm erret 64 Removing the Dust Covers from the Fiber Optic Ports em enne enne 65 Attaching a Fiber Optic Cable erede tenent ii ca e PR ocn pde uude epe dung dba OR 66 Dual SC o c id 66 Connecting the AC Power Cord ica 68 Connecting the RPS DC Cable Ranas 69 Positive Ground and Negative Terminals ooococnnicocccininocococccononononcnnnnnononcnnnnnnnnnnnn cnn n nn nn nnne nnn nnn nnns en nnns 70 Stripped Wie A nE EE E EAEE E A A PA Ree ae aceon 71 Connectingthe Stripped Wire 2 1o sete a 71 Connecting an RS 232 Cabl
65. rt Piriouts 2 4 etes ee ep D Ret E RE 83 AT 8516F SC Fiber Optic Port SpecificatiONS oonnoocconnnccnnnnncnncccnnoncncnnnnnnnorn conan eene nennen nnne enne nennen nenne 85 RS 232 Terminal Port PinOuts rere rrr aia 86 RPS Connector Port PINGUIS voir ia iD 87 Dual SETYpO Cometa A HOHER D DE epi 90 Figures Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 15 Figure 16 Figure 17 Figure 18 Figure 19 Figure 20 Figure 21 Figure 22 Figure 23 Figure 24 Figure 25 Figure 26 Figure 27 Figure 28 Figure 29 Figure 30 Figure 31 Figure 32 AT 8516F SC Switch Front and Back Panels 9 AT 8524M Switch Front and Back Panels 10 AT 8524POE Switch Front and Back Panels 11 AT 8550GB Switch Front and Back Panels 12 AT 8550SP Switch Front and Back Panels 13 GBIC Module 21 SFP Transceiver 21 AT RPS3004 Redundant Power Supply Unit 30 Power Workgroup Topology 35 Collapsed Backbone Topology 36 Mixed Topology 37 Rack Mount Bracket Positions 47 Removing the Feet 48 Removing the Expansion Slot Faceplate 50 Installing a Module 51 Securing the Module in the Expansion Slot 51 Optical Bore and Ferrule of GBIC Module 53 Installing a GBIC Module 53 Connecting the Twisted Pair Data Cables 56 Removing the Dust Covers from the Fiber Optic Ports 57 Attaching a Fiber Optic Cable 58 Dual SC Port 58 Connecting the
66. rts Table 10 Twisted Pair Cabling and Distances Maximum Model Speed Cable Type Operating Distance AT 8524M 10 Mbps Category 3 or better 100 m 328 ft AT 8524POE 100 ohm shielded or AT 8550GB unshielded twisted pair AT 8550SP cable 100 Mbps Category 5 or Category 100 m 328 ft 5E Enhanced 100 ohm shielded or unshielded twisted pair cable AT 8550GB 1000 Mbps Category 5 and 100 m 328 ft AT 8550SP Category 5E Ports 49R Enhanced 100 ohm and 50R shielded or unshielded twisted pair cable Note The twisted pair ports on the switch feature auto MDI MDI X They configured themselves automatically as MDI or MDI X when connected to an end node This allows you to use a straight through twisted pair cable when connecting any type of network device to a port on the switch The auto MDI MDI X feature is disabled if you disable Auto Negotiation on a port and set a port s speed and duplex mode manually using the AT S62 management software A port where Auto Negotiation has been disabled defaults to MDI X Disabling Auto Negotiation may require that you manually configure a port s MDI MDI X setting or use a crossover cable Note The 10 100 1000Base T ports Ports 49R and 50R on the AT 8550GB and AT 8550SP switches can operate at 1000 Mbps only when set to Auto Negotiation which is the default setting You cannot manually set these ports to 1000 Mbps 52 AT 8500 Series Layer 2
67. s and view performance and error statistics Note If you already installed an AT 8500 Series Switch AT 8400 Series Switch or AT 8000 Series Switch on your network and configured it as a Master switch of an enhanced stack you can begin to remotely manage the new switch you have just installed by connecting locally or remotely to the Master switch and then using the enhanced stacking feature to access the new switch For instructions refer to the AT S62 Management Software User s Guides To start a local management session perform the following procedure 1 Connect one end of the RS 232 straight through management cable included with the AT 8500 Series switch to the RS 232 terminal port on the switch See Figure 28 This port is located on the front panel on the AT 8516F SC AT 8524M and AT 8524POE switches and on the back panel of the AT 8550GB and AT 8550SP switches es yy A Tes 2 Mop AM rast 0 E ES themet Swit 0 x ite en TERMINAS E h STATUS Ol AULT Mr MASTER RPS 0 PWR 0 Figure 28 Connecting an RS 232 Cable to the RS 232 Terminal Port on an AT 8524M Switch 2 Connect the other end of the cable to an RS 232 port on a terminal or a personal computer with a terminal emulation program 3 Set the terminal or the terminal emulation program to the following settings O Baud rate 9600 bps O Data bits 8 73 Chapter 2 Installation 74 O Parity None O Stop bits 1 O Flow control N
68. s on the front panel display port status information Each port has two LEDs One of the LEDs displays the status of the link between a port and its end node The second LED labeled MODE displays a variety of status information depending on the switch model You use the Mode Select button on the front panel to toggle the Mode LEDs to display different status information The LEDs next to the Mode Select button indicate the status being displayed by the port Mode LEDs Note Toggling the Mode Selection button does not affect the normal operations of the switch Table 4 describes the LEDs for the 10 100Base TX twisted pair ports on the AT 8524M AT 8550GB and AT 8550SP switches Table 4 LEDs for the 10 100Base TX Twisted Pair Ports on the AT 8524M AT 8550GB and AT 8550SP Switches LED State Description LINK OFF Indicates that there is no link between the port and the end node Green Indicates a valid link has been established between the port and the end node Mode COL OFF Indicates that no data collisions are occurring on the port Flashing Indicates that data collisions are occurring Green on the port 31 Chapter 1 Overview 32 Table 4 LEDs for the 10 100Base TX Twisted Pair Ports on the AT 8524M AT 8550GB and AT 8550SP Switches Continued LED State Description Mode 100 OFF Indicates that the port is operating at 10 AT 8524M M
69. sed when addressing this concern amp E21 A tray cable is required to connect the power source if the unit is powered by centralized DC power The tray cable must be a UL listed Type TC tray cable and rated at 600 V and 90 degrees C with three conductors minimum 14 AWG amp E24 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 49 Chapter 2 Installation 50 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 47 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 41 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 prod
70. speed and duplex mode manually Maximum Distance Each twisted pair port has a maximum operating distance of 100 meters 328 feet Type of Cabling For 10 Mbps operation Category 3 or better 100 ohm shielded or unshielded twisted pair cabling is required For 100 Mbps operation Category 5 or Enhanced Category 5 BE 100 ohm shielded or unshielded twisted pair cabling is required Auto MDI MDI X The twisted pair ports are auto MDI MDI X They automatically configure themselves as either MDI or MDI X depending on the configuration of the port on the end node This feature allows you to use either straight through or crossover twisted pair cables to connect devices to the ports Note The auto MDI MDI X feature on a port is available only when the port is set to Auto Negotiation If you disable Auto Negotiation and set a port s speed and duplex mode manually the port defaults to MDI X For instructions on configuring a port refer to the AT S62 Management Software User s Guides Port Pinouts For the port pinouts for the AT 8524M AT 8550GB and AT 8550SP switches refer to Table 12 on page 83 For the port pinouts for the AT 8524POE switch refer to Table 13 on page 83 23 Chapter 1 Overview 10 100 1000Base T Twisted Pair Ports 24 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
71. switch begins to load the AT S62 software The loading process takes approximately 20 to 30 seconds to complete 68 4 AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide 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 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 The switch runs a series of self diagnostic tests which take a few seconds to perform After the self tests are complete the switch is ready for normal network operations A Warning This unit might have more than one power cord To reduce the risk of electric shock disconnect all power cords before servicing the unit E30 No further installation steps are required if you do not intend to change the default operating parameter settings of the switch which are listed in the AT S62 Management Software User s Guide However if you want to manage the switch refer to Starting a Local Management Session on page 73 69 Chapter 2 Installation Wiring and Powering on an DC Powered Unit 70 To provide power for a DC powered switch perform the following steps 1 Before you attach wires to
72. t and Back Panels AT 8524POE 4D mu am um MVE Alied Tel amp yn AT 8524POE rast etn tH Le EE s Jc e m o e O s 2e AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide 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 The ports when not using PoE can use 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 For ports using PoE Category 5 or 5E 100 ohm twisted pair cable is required for both 10 and 100 Mbps operation The switch also features two expansion slots that are compatible with 100Base and 1000Base fiber optic and twisted pair port expansion modules and the AT STACKM stacking module Figure 3 shows the front and back panels of the AT 8524POE switch 10 100Base TX Ports Syst with PoE EDs LED Mode ae Select Button nig d Module u Slots RS 232 Port Status Terminal Port LEDs 100 240V RPS INPUT RPS INI EBE ur ih illa H AC Power Connector RPS Connector Figure 3 AT 8524POE Switch Front and Back Panels Chapter 1 Overview AT 8550GB The AT 8550GB switch has 48 10 100Base TX twisted pair ports c
73. t 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 increasing network security When the destination an 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 Because 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 switch to forward the packet Duplex mode refers to the manner in which an end node receives and Store and Forward Back Pressure and Flow Control 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 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
74. tch System 10 100 1000Base T Ports Port LEDs LEDs id ba AA Alied Telesyn AT 8550SP Fast Ethernet Swi I3 pal 7 a g 0 2 04 E 18 0 2 E 26 E EJ 32 EJ EJ EJ EJ 4 a E E em pm staus coL OZ 3332 SFP Slots 10 100Base TX Ports LED Mode Select Button 100 240V EA ana Em RPS INPUT E amm a EH a HEHEEHEEHEHEEEH a mu 7 POE a E AC Power Connector RPS Connector RS 232 Terminal Port Figure 5 AT 8550SP Switch Front and Back Panels 21 Chapter 1 Overview Port Descriptions 22 10 100Base TX Twisted Pair Ports This section provides information on the following port types found on the AT 8500 Series switches o 10 100Base TX Twisted Pair Ports next o 10 100 1000Base T Twisted Pair Ports on page 24 o 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 Only four of the pins are used when a port is operating at 10 or 100 Mbps Speed The twisted pair ports are 10 100Base TX compliant and are capable of 10 megabits per second Mbps or 100 Mbps speeds You can set the port speed manually or because the ports are IEEE 802 3u Auto Negotiation compliant you can let the switch set each port s speed automatically With Auto Negotiation the switch automatically matches the highest possibl
75. ters 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 Port LEDs System LEDs PORT ACTIVITY Du FULL DU p petes bud e e D O QU 1 AA EA Herer e cA iL er ren DESEE a gt Module Expansion Slots 100Base FX Ports RS 232 Terminal Port H H H H 100 240V RPS INPUT CA CEL EHHEHEN BEHHHHENH AC Power Connector nan EERE EERE RPS Connector Figure 1 AT 8516F SC Switch Front and Back Panels 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 The expansion slots are compatible with 100Base and 1000Base fiber optic and twisted pair port expansion modules and the AT STACKM stacking module Figure 2 shows the front and back panels of the AT 8524M switch System LEDs 10 100Base TX Ports LED Mode Select Button Module Expansion Slots Port Status RS 232 LEDs Terminal Port EHI 100 240V RPS INPUT AC Power Connector RPS Connector Figure 2 AT 8524M Switch Fron
76. th PoE Pin MDI Signal MDI X Signal 1 TX and Vport 1 RX and Vport 1 2 TX and Vport 1 RX and Vport 1 3 RX and Vport 2 TX and Vport 2 83 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 depend ing on the requirements of the powered device con nected to a port 2 Vport 2 can be positive or negative depend ing on the requirements of the powered device con nected to a port If Vport 1 is positive then Vport 2 will be negative If Vport 1 is negative then Vport 2 will be positive Table 14 lists the RJ 45 pin signals for the two 10 100 1000 Base T ports on the AT 8550GB switch when the ports are operating at 1000 Mbps Table 14 MDI and MDI X Pin Signals 1000Base T 84 MDI Configuration MDI X Configuration Pinout Pair Pinout Pair 1 Pair 1 1 Pair 2 2 Pair 1 2 Pair 2 3 Pair 2 3 Pair 1 4 Pair 3 4 Pair 4 5 Pair 3 5 Pair 4 6 Pair 2 6 Pair 1 7 Pair 4 7 Pair 3 8 Pair 4 8 Pair 3 AT 8500 Series Layer 2 Fast Ethernet Switches Installation Guide AT 8516F SC Fiber Optic Port Specifications Standard Speed Maximum Operating Distance
77. u 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 A 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 4 7 E40 Cabling Fiber If your switch has fiber optic ports perform the following procedure Optic Ports 1 Remove the dust covers from the ports as shown in Figure 20 Figure 20 Removing the Dust Covers from the Fiber Optic Ports Note Do not remove the dust covers if you do not intend to connect the fiber optic cables at this time Dust contamination can adversely impact the operation of the ports 65 Chapter 2 Installation 66 2 Attach the fiber optic data cables to the fiber optic ports as shown in Figure 21 Figure 21 Attaching a Fiber Optic Cable When you attach a fiber optic cable be sure to observe the following guidelines m m 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 One is for receiving packets and the other is for transmitting packets When you connect a fiber optic cabl
78. uct must not connect to cabling that is routed outside the building where this device is located E40 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 o 02 uuu 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 If you are installing the switch on a table be sure 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 to view the switch s LEDs To allow proper cooling of the switch air flow around the unit and through its vents on the side and rear should be unrestricted Do not place objects on top of the switch Do not expose the switch to moisture or water Make sure 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 51 Chapter 2 Installation Planning the Installation Table 10 contains the cabling specifications for the twisted pair po

Allied Telesis AT-8500 Series User's Manual

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