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| Troubleshooting

Stack Troubleshooting

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ES-4550G / ES-4526G

If any changes occur to a slave unit, such as unit failure or insertion of a new
unit, operation of the other units in the stack are not affected. On the other
hand, if the master unit fails, the unit with the lowest MAC address is elected as
the new master. The stack reboots, discovers the new stack topology, assigns
identifiers to each unit, and checks the software images on each unit. This
process make take up to two minutes.

If you do not connect a wrap-around cable from the bottom unit back up to the
top unit in the stack, the failure of a single unit will cause the stack to break into
two separate stacks. In this case, a master unit will be elected for both of the
stacks. However, backup information inherited from the previous master unit will
cause the same IP address to be used by both master units in the two stacks.
You must therefore manually reconfigure the IP address of the management
interface on one of the master units.

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Summary of Contents for iPECS ES-4526G

Page 1: ...Installation Manual ES 4550G ES 4526G Managed Layer 3 Stackable GE Switch ...

Page 2: ......

Page 3: ...J 45 Ports 4 Gigabit Combination Ports RJ 45 SFP 2 10 Gigabit Extender Module Slots and 2 Stacking Ports ES 4526G MANAGED 24 PORT L3 STACKABLE GE SWITCH Layer 3 Stackable Gigabit Ethernet Switch with 20 10 100 1000BASE T RJ 45 Ports 4 Gigabit Combination Ports RJ 45 SFP 2 10 Gigabit Extender Module Slots and 2 Stacking Ports E052011 DT R01 150200000267A ...

Page 4: ......

Page 5: ...rmful 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 You are cautioned that changes or modifications not expressly approved by the party responsible for compliance could void your authority to operate the equipment You may use unshie...

Page 6: ...22 2006 A1 2007 Limit class A for harmonic current emission according to IEC 61000 3 2 2006 Limitation of voltage fluctuation and flicker in low voltage supply system according to IEC 61000 3 3 1995 A2 2005 Immunity Product family standard according to IEC 55024 1998 A2 2003 Electrostatic Discharge according to IEC 61000 4 2 1995 A2 2001 Contact Discharge 4 kV Air Discharge 8 kV Radio frequency el...

Page 7: ...écurité sur le plan optique Warnhinweis Faseroptikanschlüsse Optische Sicherheit When using a fiber optic port never look at the transmit laser while it is powered on Also never look directly at the fiber TX port and fiber cable ends when they are powered on Ne regardez jamais le laser tant qu il est sous tension Ne regardez jamais directement le port TX Transmission à fibres optiques et les embou...

Page 8: ...e inlet The socket outlet must be near to the unit and easily accessible You can only remove power from the unit by disconnecting the power cord from the outlet This unit operates under SELV Safety Extra Low Voltage conditions according to IEC 60950 The conditions are only maintained if the equipment to which it is connected also operates under SELV conditions France and Peru only This unit cannot...

Page 9: ...20 IEC 320 Power Cord Set U S A and Canada The cord set must be UL approved and CSA certified The minimum specifications for the flexible cord are No 18 AWG not longer than 2 meters or 16 AWG Type SV or SJ 3 conductor The cord set must have a rated current capacity of at least 10 A The attachment plug must be an earth grounding type with NEMA 5 15P 15 A 125 V or NEMA 6 15P 15 A 250 V configuration...

Page 10: ...e connexion portant l appellation Neutre et avec raccordement direct à la terre masse Cordon électrique Il doit être agréé dans le pays d utilisation Etats Unis et Canada Le cordon doit avoir reçu l homologation des UL et un certificat de la CSA Les spécifications minimales pour un cable flexible sont AWG No 18 ouAWG No 16 pour un cable de longueur inférieure à 2 mètres type SV ou SJ 3 conducteurs...

Page 11: ...ierten Geräteeingang haben Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich sein Die Stromversorgung des Geräts kann nur durch Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden Der Betrieb dieses Geräts erfolgt unter den SELV Bedingungen Sicherheitskleinstspannung gemäß IEC 60950 Diese Bedingungen sind nur gegeben wenn auch die an das Gerät angeschlossen...

Page 12: ...tain any serviceable user parts WARNING Installation and removal of the unit must be carried out by qualified personnel only WARNING When connecting this device to a power outlet connect the field ground lead on the tri pole power plug to a valid earth ground line to prevent electrical hazards WARNING This switch uses lasers to transmit signals over fiber optic cable The lasers are compliant with ...

Page 13: ... of all included electrical components once the product has reached the end of its life MANUFACTURING MATERIALS There are no hazardous nor ozone depleting materials in this product DOCUMENTATION All printed documentation for this product uses biodegradable paper that originates from sustained and managed forests The inks used in the printing process are non toxic ...

Page 14: ...COMPLIANCES AND SAFETY STATEMENTS 14 ES 4550G ES 4526G ...

Page 15: ...following conventions are used throughout this guide to show information RELATED PUBLICATIONS The following publication gives specific information on how to operate and use the management functions of the switch The User Manual Also as part of the switch s software there is an online web based help that describes all management related features NOTE Emphasizes important information or calls your a...

Page 16: ...S 4550G ES 4526G REVISION HISTORY This section summarizes the changes in each revision of this guide APRIL 2011 REVISION This is the first revision of this guide It is valid for the initial release for the standard version ...

Page 17: ...xamples 38 Application Notes 43 3 INSTALLING THE SWITCH 45 Selecting a Site 45 Ethernet Cabling 46 Equipment Checklist 47 Mounting 48 Connecting to a Power Source 52 Connecting to the Console Port 53 Installing an Optional Module into the Switch 54 Installing an Optional SFP Transceiver 55 Connecting Switches in a Stack 56 4 MAKING NETWORK CONNECTIONS 59 Connecting Network Devices 59 Twisted Pair ...

Page 18: ...witch Indicators 71 Power and Cooling Problems 72 Installation 72 In Band Access 73 Stack Troubleshooting 73 B CABLES 75 Twisted Pair Cable and Pin Assignments 75 C SPECIFICATIONS 81 Physical Characteristics 81 Switch Features 83 Management Features 84 Standards 85 Compliances 85 10GBASE Extender Module XFP 86 10GBASE Extender Module SFP 86 GLOSSARY 89 INDEX 95 ...

Page 19: ...um 10GBASE ER 10 Gigabit Ethernet Cable Length 67 Table 12 Maximum 1000BASE T Gigabit Ethernet Cable Length 67 Table 13 Maximum 1000BASE SX Gigabit Ethernet Cable Lengths 67 Table 14 Maximum 1000BASE LX Gigabit Ethernet Cable Length 67 Table 15 Maximum 1000BASE LH Gigabit Ethernet Cable Length 68 Table 16 Maximum 100BASE FX Cable Length 68 Table 17 Maximum Fast Ethernet Cable Lengths 68 Table 18 M...

Page 20: ...TABLES 20 ES 4550G ES 4526G ...

Page 21: ...ing VLAN Connections 41 Figure 14 IP Routing for Unicast Traffic 42 Figure 15 RJ 45 Connections 46 Figure 16 Grounding Point 48 Figure 17 Attaching the Brackets 49 Figure 18 Installing the Switches in a Rack 50 Figure 19 Attaching the Brackets 51 Figure 20 Power Inlet 52 Figure 21 Console Cable 53 Figure 22 Installing an Optional Module 54 Figure 23 Installing an Optional SFP Transceiver 55 Figure...

Page 22: ...FIGURES 22 ES 4550G ES 4526G Figure 30 Crossover Wiring 77 ...

Page 23: ... main board which supports both in band and out of band access for managing the stack These switches can easily tame your network with full support for Spanning Tree Protocol Multicast Switching Virtual LANs and IP routing It brings order to poorly performing networks by segregating them into separate broadcast domains with IEEE 802 1Q compliant VLANs empowers multimedia applications with multicas...

Page 24: ... Rear Panel ES 4526G Port Status Indicators System Indicators 10 100 1000 Mbps RJ 45 Ports SFP Ports Console Port Mode Button ES 4550G Console Port Mode Button System Indicators 10 100 1000 Mbps RJ 45 SFP Ports RPS Inlet Grounding Point Power Inlet 10G Expansion Modules Stacking Ports ...

Page 25: ...d throughout the network These switches include built in stacking ports that enable up to eight units to be connected together through a 48 Gbps stack backplane The switch stack can be managed from a master unit using a single IP address These switches also include two slots on the rear panel for slide in single port 10GBASE modules NETWORK MANAGEMENT OPTIONS These switches contain a comprehensive...

Page 26: ...o one of these ports does not support auto negotiation the communication mode of that port can be configured manually SFP TRANSCEIVER SLOTS The Small Form Factor Pluggable SFP transceiver slots are shared with four of the RJ 45 ports ports 21 24 for the ES 4526G and ports 45 48 for the ES 4550G In its default configuration if an SFP transceiver purchased separately is installed in a slot and has a...

Page 27: ...mation on these modules and the supported 10G transceivers Figure 3 10 Gigabit Ethernet Module Slots Table 1 Supported SFP Transceivers Media Standard Fiber Diameter microns Wavelength nm Maximum Distance 1000BASE SX 50 125 850 700 m 62 5 125 850 400 m 1000BASE LX 50 125 1300 550 m 62 5 125 1300 550 m 9 125 1300 10 km 1000BASE LH 9 125 1310 35 km 1550 80 km 100BASE FX 50 125 or 62 5 125 1300 2 km ...

Page 28: ... 48 port switches can be mixed in the same stack The Stack Master button enables one switch in the stack to be selected as the Master unit for managing the entire stack Figure 4 Stacking Ports PORT AND SYSTEM LEDS These switches include a display panel for key system and port indications that simplify installation and network troubleshooting The LEDs which are located on the front panel for easy v...

Page 29: ... Ports 21 24 or 49 52 SFP Inserted On Green A valid SFP transceiver is installed in the slot Off No SFP transceiver is installed in the slot Table 3 System Status LEDs LED Condition Status PWR On Green The unit s internal power supply is operating normally Amber Internal power supply failure Off The unit has no power connected Diag Flashing Green The system diagnostic test is in progress Green The...

Page 30: ... unit in the stack Flashing Amber System in Master arbitration election state Off System in standalone mode Stack Link Green Uplink and downlink operating normally Flashing Green Uplink has failed Flashing Amber Downlink has failed Off No stacking link present Module Green An expansion module is installed and operating normally Amber An expansion module is installed but has failed Off There is no ...

Page 31: ...revent accidental electrical shock or damage to your switch it is recommended that you ground the switch to an earth point by attaching a grounding wire not supplied to the grounding point located next to the power inlet with a metal screw If located in a tall building grounding points include metal drain pipes and other electrostatic conductive devices that lead to the ground or if located on the...

Page 32: ...switch through a serial cable The console device can be a PC or workstation running a VT 100 terminal emulator or a VT 100 terminal A crossover RJ 45 to DB 9 cable is supplied with the unit for connecting to the console port Figure 8 Console Port OPTIONAL MEDIA EXTENDER MODULES 10GBASE MODULES Figure 9 Single Port 10GBASE Modules Console Port ...

Page 33: ...ted LED indicators on the module s front panel The following table describes the LEDs NOTE Due to a chipset limitation the SFP transceivers will only operate at 10 Gbps and cannot operate at lower speeds Table 4 Supported XFP Transceivers Media Standard Maximum Distance 10GBASE SR 300 m 10GBASE LR 10 km Table 5 Supported SFP Transceivers Media Standard Maximum Distance 10GBASE SR 300 m 10GBASE LR ...

Page 34: ...r for 10 Mbps connections Category 5 or better for 100 Mbps connections and Category Category 5 5e 6 or better for 1000 Mbps connections IEEE 802 3 2005 Ethernet Fast Ethernet Gigabit Ethernet and IEEE 802 3ae 10 Gigabit Ethernet compliance ensures compatibility with standards based hubs network cards and switches from any vendor Provides stacking capability via high speed serial ports with 48 Gbp...

Page 35: ...4K IPv6 address entries Provides store and forward switching for intra VLAN traffic and IP routing for inter VLAN traffic Supports wire speed switching at layer 2 and wire speed routing at layer 3 Broadcast storm control MANAGEMENT At a glance LEDs for easy troubleshooting Network management agent Manages switch or entire stack in band or out of band Supports console Telnet SSH SNMP v1 v2c v3 RMON...

Page 36: ...CHAPTER 1 Introduction Features and Benifits 36 ES 4550G ES 4526G ...

Page 37: ...he device experiencing congestion server power user or hub can be attached directly to a switched port And by using full duplex mode the bandwidth of the dedicated segment can be doubled to maximize throughput When networks are based on repeater hub technology the distance between end stations is limited by a maximum hop count However a switch turns the hop count back to zero So subdividing the ne...

Page 38: ...fullduplex connections for up to 24 48 workstations or servers You can easily build on this basic configuration adding direct full duplex connections to workstations or servers When the time comes for further expansion just connect to another hub or switch using one of the Gigabit Ethernet ports built into the front panel a Gigabit Ethernet port on a plug in SFP transceiver or a 10G transceiver on...

Page 39: ...ABLE Fiber optic technology allows for longer cabling than any other media type A 1000BASE SX MMF link can connect to a site up to 550 meters away a 1000BASE LX SMF link up to 5 km and a 1000BASE LH link up to 70 km This allows a switch stack to serve as a collapsed backbone providing direct connectivity for a widespread LAN A 1000BASE SX SFP transceiver can be used for a high speed connection bet...

Page 40: ...ever tagged VLANs should be used for larger networks and all the VLANs assigned to the inter switch links These switches also support multiple spanning trees which allow VLAN groups to maintain a more stable path between all VLAN members This can reduce the overall amount of protocol traffic crossing the network and provide a shorter reconfiguration time if any link in the spanning tree fails At L...

Page 41: ...gateway router linked to the WAN Just assign an IP address to any VLANs that need to communicate The switch will continue to segregate Layer 2 traffic based on VLANs but will now provide inter VLAN connections for IP applications The switches will perform IP routing for specified VLAN groups a directly connected subnetwork a remote IP subnetwork or host address a subnetwork broadcast address or an...

Page 42: ...CHAPTER 2 Network Planning Application Examples 42 ES 4550G ES 4526G Figure 14 IP Routing for Unicast Traffic IP Network 1 R D VLAN 1 VLAN 2 Testing IP Network 2 ...

Page 43: ...ver if you have to interconnect distinct VLANs or IP subnets you can take advantage of the wire speed Layer 3 routing provided by this switch 3 As a general rule the length of fiber optic cable for a single switched link should not exceed 1000BASE SX 550 m 1805 ft for multimode fiber 1000BASE LX 5 km 3 1 miles for single mode fiber 1000BASE LH 70 km 43 5 miles for single mode fiber 10GBASE SR 300 ...

Page 44: ...CHAPTER 2 Network Planning Application Notes 44 ES 4550G ES 4526G ...

Page 45: ...ling cabling and maintaining the devices allow the status LEDs to be clearly visible Make sure twisted pair cable is always routed away from power lines fluorescent lighting fixtures and other sources of electrical interference such as radios and transmitters Make sure that the unit is connected to a separate grounded power outlet that provides 100 to 240 VAC 50 to 60 Hz is within 2 m 6 6 feet of ...

Page 46: ...our network Cable type Unshielded twisted pair UTP or shielded twisted pair STP cables with RJ 45 connectors Category 3 or better for 10BASE T Category 5 or better for 100BASE TX and Category 5 5e or 6 for 1000BASE T Protection from radio frequency interference emissions Electrical surge suppression Separation of electrical wires switch related or other and electromagnetic fields from data based n...

Page 47: ...net Switch ES 4526G or ES 4550G RJ 45 to RS232 console cable Four adhesive foot pads Grounding screw Bracket Mounting Kit containing two brackets and eight screws for attaching the brackets to the switch Power Cord Quick Installation Guide Manual CD OPTIONAL RACK MOUNTING EQUIPMENT If you plan to rack mount the switches be sure to have the following equipmentavailable Four mounting screws for each...

Page 48: ...aracteristics on page 81 Mechanical Loading Do not place any equipment on top of the rack mounted unit Circuit Overloading Be sure that the supply circuit to the rack assembly is not overloaded Grounding Rack mounted equipment should be properly grounded Particular attention should be given to supply connections other than direct connections to the mains Figure 16 Grounding Point CAUTION Stacking ...

Page 49: ...ets to the device using the screws provided in the Bracket Mounting Kit Figure 17 Attaching the Brackets 2 Mount the device in the rack using four rack mounting screws not provided Be sure to secure the lower rack mounting screws first to prevent the brackets being bent by the weight of the switch 28 27 ...

Page 50: ... 4550G ES 4526G Figure 18 Installing the Switches in a Rack 3 If installing a single switch only turn to Connecting to a Power Source on page 52 at the end of this chapter 4 If installing multiple switches mount them in the rack one below the other ...

Page 51: ...2 Set the device on a flat surface near an AC power source making sure there are at least two inches of space on all sides for proper air flow 3 If installing a single switch only go to Connecting to a Power Source on page 52 at the end of this chapter 4 If installing multiple switches attach four adhesive feet to each one Place each device squarely on top of the one below in any order ...

Page 52: ...ack of the switch Figure 20 Power Inlet 2 Plug the other end of the cable into a grounded 3 pin AC power source 3 Check the front panel LEDs as the device is powered on to be sure the Power LED is on green If not check that the power cable is correctly plugged in NOTE For International use you may need to change the AC line cord You must use a line cord set that has been approved for the wall sock...

Page 53: ...connecting to the console port as illustrated below The PIN assignments used to connect to the serial port are described below Figure 21 Console Cable WIRING MAP FOR SERIAL CABLE The serial port s configuration requirements are as follows Default Baud rate 115 200 bps Character Size 8 Characters Table 8 Serial Cable Wiring Switches 8 PIN Serial Port Null Modem PC s 9 PIN DTE Port 6 RXD receive dat...

Page 54: ...ning the package that contains the module touch the bag to the switch casing to discharge any potential static electricity Also it is recommended to use an ESD wrist strap during installation 3 Remove the module from the anti static shielded bag 4 Holding the module level guide it into the carrier rails on each side and gently push it all the way into the slot ensuring that it firmly engages with ...

Page 55: ...e transceivers To install an SFP transceiver do the following To install an SFP transceiver do the following 1 Consider network and cabling requirements to select an appropriate SFP transceiver type 2 Insert the transceiver with the optical connector facing outward and the slot connector facing down Note that SFP transceivers are keyed so they can only be installed in one orientation 3 Slide the S...

Page 56: ...ant path for the stack link so if one link fails stack communications can still be maintained Figure 24 illustrates a ring topology stacking configuration To connect up to eight switches in a stack perform the following steps 1 Plug one end of the stack cable ordered separately in the Down right port of the top unit 2 Plug the other end of the stack cable into the Up left port of the next unit 3 R...

Page 57: ...tches are selected the system will select the unit with the lowest MAC address as the Master STACKING TOPOLOGIES All units in the stack must be connected via stacking cable You can connect units in a simple cascade configuration connecting Down ports to Up ports from the top unit to the bottom unit Using this line topology if any link or unit in the stack fails the stack is split and two separate ...

Page 58: ...eboots and resumes operations note that the IP address will be the same for both of the stack segments To resolve the conflicting IP addresses you should manually replace the failed link or unit as soon as possible If you are using a wrap around stack topology a single point of failure in the stack will not cause the stack to fail It would take two or more points of failure to break the stack apar...

Page 59: ...onnections Category 5 or better for 100BASE TX connections and Category 3 or better for 10BASE T connections CABLING GUIDELINES The RJ 45 ports on the switch support automatic MDI MDI X pinout configuration so you can use standard straight through twisted pair cables to connect to any other network device PCs servers switches routers or hubs See Appendix B Cables for further information on cabling...

Page 60: ... attach the other end to an available port on the switch Make sure each twisted pair cable does not exceed 100 meters 328 ft in length 3 As each connection is made the relevant Port LED on the switch corresponding to each port will light green or amber to indicate that the connection is valid NOTE Avoid using flow control on a port connected to a hub unless it is actually required to solve a probl...

Page 61: ...panel Instructions for making connections in the wiring closet with this type of equipment follows 1 Attach one end of a patch cable to an available port on the switch and the other end to the patch panel 2 If not already in place attach one end of a cable segment to the back of the patch panel where the punch down block is located and the other end to a modular wall outlet 3 Label the cables to s...

Page 62: ...nsceiver can be used for a backbone connection between switches or for connecting to a high speed server Each single mode fiber port requires 9 125 micron single mode fiber optic cable with an LC connector at both ends Each multimode fiber optic port requires 50 125 or 62 5 125 micron multimode fiber optic cabling with an LC connector at both ends Equipment Rack side view Switch Patch Panel Punch ...

Page 63: ...the cable to the LC port on the switch and the other end to the LC port on the other device Since LC connectors are keyed the cable can be attached in only one orientation Figure 27 Making Fiber Port Connections WARNING Warning These switches use lasers to transmit signals over fiber optic cable The lasers are compliant with the requirements of a Class 1 Laser Product and are inherently eye safe i...

Page 64: ...le Multimode fiber optic ports require 50 125 or 62 5 125 micron multimode fiber optic cable Each fiber optic cable must have an LC connector attached at both ends 1 Remove and keep the port s protective cover When not connected to a fiber cable the cover should be replaced to protect the optics 2 Check that the fiber terminators are clean You can clean the cable plugs by wiping them gently with a...

Page 65: ... device Since LC connectors are keyed the cable can be attached in only one orientation 4 As a connection is made check the Link LED on the module to be sure that the connection is valid The 10G fiber optic ports operate at 10 Gbps full duplex The maximum length for fiber optic cable operating at 10 Gbps will depend on the fiber type as listed under 10 Gbps Ethernet Collision Domain on page 66 ...

Page 66: ...nections or any new cable installations Category 5e enhanced Category 5 or Category 6 cable should be used The Category 5e and 6 specifications include test parameters that are only recommendations for Category 5 Therefore the first step in preparing existing Category 5 cabling for running 1000BASE T is a simple test of the cable installation to be sure that it complies with the IEEE 802 3 2005 st...

Page 67: ...24 85 miles LC Table 12 Maximum 1000BASE T Gigabit Ethernet Cable Length Cable Type Maximum Cable Length Connector Category 5 5e or 6 100 ohm UTP or STP 100 m 328 ft RJ 45 Table 13 Maximum 1000BASE SX Gigabit Ethernet Cable Lengths Fiber Size Fiber Bandwidth Maximum Cable Length Connector 62 5 125 micron multimode fiber 160 MHz km 2 220 m 7 722 ft LC 200 MHz km 2 275 m 7 902 ft LC 50 125 micron mu...

Page 68: ...miles LC Table 16 Maximum 100BASE FX Cable Length Type Fiber Type Max Cable Length Connector 100BASE FX 9 125 micron single mode fiber 2 m 20 km 7 ft 12 43 miles LC 62 5 125 or 50 125 multimode fiber up to 2 km 1 24 miles LC Table 17 Maximum Fast Ethernet Cable Lengths Type Cable Type Max Cable Length Connector 100BASE TX Category 5 or better 100 ohm UTP or STP 100 m 328 ft RJ 45 Table 18 Maximum ...

Page 69: ...ollow these guidelines Clearly label the opposing ends of each cable Using your building s floor plans draw a map of the location of all network connected equipment For each piece of equipment identify the devices to which it is connected Note the length of each cable and the maximum cable length supported by the switch ports For ease of understanding use a location based key when assigning prefix...

Page 70: ...CHAPTER 4 Making Network Connections Cable Labeling and Connection Records 70 ES 4550G ES 4526G ...

Page 71: ...rocess to complete Check that all stacking cables are properly connected Stack Link LED is Flashing Green Amber The uplink downlink has failed For the indicated stack link check that the stacking cables are properly connected Replace the stacking cable if necessary Power cycle the switch to try and clear the condition Link LED is Off Verify that the switch and attached device are powered on Be sur...

Page 72: ... cannot isolate the problem the internal power supply may be defective INSTALLATION Verify that all system components have been properly installed If one or more components appear to be malfunctioning such as the power cord or network cabling test them in an alternate environment where you are sure that all the other components are functioning properly Table 20 Power RPU LEDs PWR LED RPU LED Statu...

Page 73: ...TROUBLESHOOTING If a stack fails to initialize or function first check the following items Check that all stacking cables are properly connected Check if any stacking cables appear damaged Check that only one Stack Master button is pressed in Check that all switches in the stack are powered on After checking all items reboot all the switches in the stack Switches in the stack may be configured usi...

Page 74: ...ch unit and checks the software images on each unit This process make take up to two minutes If you do not connect a wrap around cable from the bottom unit back up to the top unit in the stack the failure of a single unit will cause the stack to break into two separate stacks In this case a master unit will be elected for both of the stacks However backup information inherited from the previous ma...

Page 75: ...en with white stripes Also an RJ 45 connector must be attached to both ends of the cable The figure below illustrates how the pins on the RJ 45 connector are numbered Be sure to hold the connectors in the same orientation when attaching the wires to the pins Figure 28 RJ 45 Connector Pin Numbers CAUTION DO NOT plug a phone jack connector into any RJ 45 port Use only twisted pair cables with RJ 45 ...

Page 76: ...t the other end of the cable When using any RJ 45 port on this switch you can use either straight through or crossover cable Note The and signs represent the polarity of the wires that make up each wire pair STRAIGHT THROUGH WIRING If the twisted pair cable is to join two ports and only one of the ports has an internal crossover MDI X the two pairs of wires must be straight through When auto negot...

Page 77: ... through or crossover cable to connect to any device type You must connect all four wire pairs as shown in the following diagram to support Gigabit Ethernet Figure 30 Crossover Wiring White Orange Stripe Orange White Green Stripe Green 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 EIA TIA 568B RJ 45 Wiring Standard 10 100BASE TX Straight Through Cable End A End B Blue White Blue Stripe Brown White Brown Stripe ...

Page 78: ...ble testing information is specified in the ANSI TIA EIA TSB 67 standard Additionally cables must also pass test parameters for Return Loss and Equal Level Far End Crosstalk ELFEXT These tests are specified in the ANSI TIA EIA TSB 95 Bulletin The Additional Transmission Performance Guidelines for 100 Ohm 4 Pair Category 5 Cabling Note that when testing your cable installation be sure to include al...

Page 79: ...hese are summarized in the following table Table 23 1000BASE T MDI and MDI X Port Pinouts ITU T Standard Description Application G 651 Multimode Fiber 50 125 micron core Short reach connections in the 1300 nm or 850 nm band G 652 Non Dispersion Shifted FiberSingle mode 9 125 micron core Longer spans and extended reach Optimized for operation in the 1310 nm band but can also be used in the 1550 nm ...

Page 80: ... high power transmission in the 1500 to 1600 nm region with low loss in the 1550 nm band G 655 Non Zero Dispersion Shifted FiberSingle mode 9 125 micron core Extended long haul applications Optimized for high power dense wavelength division multiplexing DWDM operation in the region from 1500 to 1600 nm Table 23 1000BASE T MDI and MDI X Port Pinouts ITU T Standard Description Application ...

Page 81: ...ers NETWORK INTERFACE Ports 1 24 48 RJ 45 connector auto MDI MDI X 10BASE T RJ 45 100 ohm UTP cable Category 3 or better 100BASE TX RJ 45 100 ohm UTP cable Category 5 or better 1000BASE T RJ 45 100 ohm UTP or STP cable Category 5 5e or 6 Maximum Cable Length 100 m 328 ft Ports 25 28 RJ 45 SFP shared ports 1000BASE T RJ 45 100 ohm UTP or STP cable Category 5 5e or 6 Maximum Cable Length 100 m 328 f...

Page 82: ...6 IPv6 entries in the IP routing table 64 static IP routes 32 IP interfaces 255 multicast groups LEDS System Stack Master Stack Link Module Power Diag RPS Port Status link speed activity WEIGHT EC 4526G 5 7 kg 12 6 lbs EC 4550G 6 1 kg 13 4 lbs SIZE W x D x H 440 mm x 415mm x 440 mm 17 3 x 16 3 x 1 7 inches TEMPERATURE Operating 0 C to 50 C 32 F to 122 F Storage 40 C to 70 C 40 F to 158 F HUMIDITY ...

Page 83: ...es 130 Watts with two expansion modules MAXIMUM CURRENT ES 4526G 1 A 110 VAC without expansion modules 1 1 A 110 VAC with two expansion modules 0 38 A 240 VAC without expansion modules 0 44 A 240 VAC with two expansion modules ES 4550G 1 6 A 110 VAC without expansion modules 1 8 A 110 VAC with two expansion modules 0 66 A 240 VAC without expansion modules 0 72 A 240 VAC with two expansion modules ...

Page 84: ...cations Management Features 84 ES 4550G ES 4526G MANAGEMENT FEATURES IN BAND MANAGEMENT Web Telnet SSH or SNMP manager OUT OF BAND MANAGEMENT RS 232 RJ 45 console port SOFTWARE LOADING TFTP in band or XModem out of band ...

Page 85: ...D Spanning Tree Protocol IEEE 802 1w Rapid Spanning Tree Protocol IEEE 802 1s Multiple Spanning Tree Protocol IEEE 802 1Q Virtual LAN ISO IEC 8802 3 CSMA CD COMPLIANCES CE MARK EMISSIONS FCC Class A Industry Canada Class A EN55022 CISPR 22 Class A EN 61000 3 2 3 VCCI Class A C Tick AS NZS 3548 1995 Class A IMMUNITY EN 61000 4 2 3 4 5 6 11 SAFETY UL 60950 1 CSA 60950 1 IEC 60950 1 EN 60950 1 ...

Page 86: ... PORTS 1 slot for 10GBASE XFP transceiver COMMUNINICATION SPEED 10 Gbps COMMUNINCATION MODE Full duplex NETWORK INTERFACE XFP Slot STANDARDS IEEE 802 3ae 10 Gigabit Ethernet 10GBASE EXTENDER MODULE SFP PORTS 1 slot for 10GBASE SFP transceiver COMMUNINICATION SPEED 10 Gbps COMMUNINCATION MODE Full duplex ...

Page 87: ...APPENDIX C Specifications 10GBASE Extender Module SFP 87 ES 4550G ES 4526G NETWORK INTERFACE SFP Slot STANDARDS IEEE 802 3ae 10 Gigabit Ethernet ...

Page 88: ...APPENDIX C Specifications 10GBASE Extender Module SFP 88 ES 4550G ES 4526G ...

Page 89: ...6 twisted pair cable using all four wire pairs 1000BASE LH Long haul Gigabit Ethernet over two strands of 9 125 micron core fiber cable 1000BASE LX IEEE 802 3z specification for Gigabit Ethernet over two strands of 50 125 62 5 125 or 9 125 micron core fiber cable 1000BASE SX IEEE 802 3z specification for Gigabit Ethernet over two strands of 50 125 or 62 5 125 micron core fiber cable 1000BASE T IEE...

Page 90: ...NET A 10 Gbps network communication system based on Ethernet AUTO NEGOTIATION Signalling method allowing each node to select its optimum operational mode e g speed and duplex mode based on the capabilities of the node to which it is connected BANDWIDTH The difference between the highest and lowest frequencies available for network signals Also synonymous with wire speed the actual speed of the dat...

Page 91: ...le FAST ETHERNET A 100 Mbps network communication system based on Ethernet and the CSMA CD access method FULL DUPLEX Transmission method that allows two network devices to transmit and receive concurrently effectively doubling the bandwidth of that link GIGABIT ETHERNET A 1000 Mbps network communication system based on Ethernet and the CSMA CD access method IEEE Institute of Electrical and Electro...

Page 92: ...005 LAN SEGMENT Separate LAN or collision domain LED Light emitting diode used for monitoring a device or network condition LOCAL AREA NETWORK LAN A group of interconnected computer and support devices MEDIA ACCESS CONTROL MAC A portion of the networking protocol that governs access to the transmission medium facilitating the exchange of data between network nodes MIB An acronym for Management Inf...

Page 93: ...e that includes TCP as the primary transport protocol and IP as the network layer protocol USER DATAGRAM PROTOCOL UDP UDP provides a datagram mode for packet switched communications It uses IP as the underlying transport mechanism to provide access to IP like services UDP packets are delivered just like IP packets connection less datagrams that may be discarded before reaching their targets UDP is...

Page 94: ...GLOSSARY 94 ES 4550G ES 4526G A VLAN serves as a logical workgroup with no physical barriers allowing users to share information and resources as though located on the same LAN ...

Page 95: ... buffer size 81 C cable Ethernet cable compatibility 46 fiber standards 79 labeling and connection records 69 lengths 66 68 compliances EMC 85 safety 85 connectivity rules 10 Gbps 66 10 Mbps 66 68 100 Mbps 68 1000 Mbps 67 contents of package 47 cooling problems 72 E electrical interference avoiding 45 equipment checklist 47 Ethernet connectivity rules 66 68 F Fast Ethernet connectivity rules 68 fr...

Page 96: ...pads attaching 48 49 50 51 52 53 S SFP transceiver slots 28 site selelction 45 specifications compliances 85 environmental 82 power 83 standards compliance 85 IEEE 85 surge suppressor using 45 switch architecture 25 T troubleshooting in band access 72 power and cooling problems 72 twisted pair connections 59 ...

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Page 98: ...Printed in China MARCH 2011 ISSUE 1 0 ...

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