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4-8

Troubleshooting

Diagnosing with the LEDs

LED Patterns for PoE Troubleshooting

If the PoE Status LED is flashing, that indicates a problem with the delivery
of PoE power out one or more switch ports. Press the LED Mode button to
put the switch into PoE mode and the port LEDs will show which ports are
experiencing the problem. The following tables identify the specific problems
that are shown by the LEDs.

1.

Check in the table for the LED pattern you see on your switch.

2.

Refer to the corresponding diagnostic tip.

Table 4-2.

LED Error Indicators

Diagnostic Tips:

LED Pattern Indicating Problems

Diagnostic

Tips

Fault

PoE Status

Port Link

Port Mode

Off Fast

Flash

Orange

Slow Flash

Green

Off

Slow Flash

Slow Flash

Orange

Slow Flash

Green

Off

Tip

Problem

Solution

➊

PoE oversubscription
condition. All available
PoE power is already
taken by higher-priority
ports.

If possible add additional PoE power, or redefine port
priorities.

➋

PoE hardware fault. A
switch hardware
component that is
involved with PoE power
delivery has failed.

The switch must be replaced.

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Summary of Contents for E2620

Page 1: ...Power over Ethernet HP E2620 Switches Installation and Getting Started Guide ...

Page 2: ......

Page 3: ...HP E2620 Switches Installation and Getting Started Guide ...

Page 4: ...d be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein Hewlett Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett Packard Warranty See the Customer Support Warranty booklet included with the product A copy of the specific warranty terms appli...

Page 5: ...lling the Switch Included Parts 2 1 Installation Precautions 2 3 Installation Procedures 2 4 1 Prepare the Installation Site 2 6 2 Verify the Switch Passes Self Test 2 6 LED Behavior 2 8 3 Mount the Switch 2 9 Rack or Cabinet Mounting 2 9 Rack Mounting the E2620 PoE switches 2 10 Rack Mounting the Non PoE Switches 2 12 Flat Wall Mounting non PoE models only 2 14 Horizontal Surface Mounting 2 15 4 ...

Page 6: ...onsole to the Switch 2 25 Terminal Configuration 2 25 Direct Console Access 2 26 Sample Network Topologies for Non PoE Switches 2 27 As a Desktop Switch 2 27 As a Segment Switch 2 28 Connecting to a Backbone Switch 2 29 Sample Network Topologies for PoE Switches 2 31 As a Desktop Switch Implementing PoE 2 31 As a Segment Switch Implementing PoE 2 32 Stacking the Switch 2 34 3 Configuring the Switc...

Page 7: ...cking Console Messages 4 10 Testing Twisted Pair Cabling 4 11 Testing Switch to Device Network Communications 4 11 Testing End to End Network Communications 4 11 Restoring the Factory Default Configuration 4 12 Downloading New Switch Software 4 13 HP Customer Support Services 4 13 Before Calling Support 4 13 A Switch Specifications Physical A 1 Electrical A 1 RPS EPS Electrical Input A 2 Environme...

Page 8: ...work Connection B 7 Cable Diagram B 7 Pin Assignments B 7 Straight Through Twisted Pair Cable for 1000 Mbps Network Connections B 8 Cable Diagram B 8 Pin Assignments B 8 C Safety and EMC Regulatory Statements Safety Information C 1 Informations concernant la sécurité C 2 Hinweise zur Sicherheit C 3 Considerazioni sulla sicurezza C 4 Consideraciones sobre seguridad C 5 Informações de Segurança C 6 ...

Page 9: ...vii D Recycle Statements Waste Electrical and Electronic Equipment WEEE Statements D 1 Index ...

Page 10: ...viii ...

Page 11: ...ces that offer low latency for high speed networking The non PoE and PPoE switches support Redundant power supply HP 600 RPS EPS The E2620 PoE Switches also support Redundant and External Power Supply and Power over Ethernet PoE PoE technologies HP E2620 24 Switch J9623A HP E2620 48 Switch J9626A HP E2620 24 PPoE Switch J9624A HP E2620 24 PoE Switch J9625A HP E2620 48 PoE Switch J9627A ...

Page 12: ...e other for Power over Ethernet PoE power Table 1 1 Optional Network Connectivity Speeds and Technologies Transceiver Form Factor and Connector1 Speed Technology Cabling SFP mini GBIC Connector 100 Mbps 100 FX Fiber multimode LC 100 BX Fiber single mode LC 1 Gbps 1000 T Copper twisted pair RJ 45 1000 SX Fiber multimode LC 1000 LX Fiber multimode or single mode LC 1000 LH Fiber single mode LC 1000 ...

Page 13: ...vide all the AC power necessary to keep the switch running should the switch internal AC power supply fail The 600 RPS EPS can not be used for EPS PoE power for the E2620 PoE switches The E2620 PoE switches can be connected to an HP 620 Redundant and External Power Supply J8696A hereafter referred to as the 620 RPS EPS for RPS only As an RPS unit the 620 RPS EPS will provide all the AC power neces...

Page 14: ... devices and you can builda switched network infrastructure by connecting the switch to hubs other switches or routers In addition the E2620 Switches offer full network management capabilities Switch RPS Support EPS Support HP E2620 24 J9623A 600 N A HP E2620 48 J9626A 600 N A HP E2620 24 PPoE J9624A 600 N A HP E2620 24 PoE J9625A 620 630 630 HP E2620 48 PoE J9627A 620 630 630 ...

Page 15: ...ttons LED Mode select button and indicator LEDs 10 100Base TX RJ 45 ports1 Uplink ports 1000Base T2 and Mini GBIC Switch port LEDs RPS EPS Fan and Test Status LEDs Power and Fault LEDs Console Port HP E2620 24 Switch J9623A 1 All 10 100Base TX RJ 45 ports have the Auto MDIX feature 2 Two RJ 45 10 100 1000Base T ports and two Mini GBIC SFP slots Console Port Reset and Clear buttons Switch port LEDs...

Page 16: ...ing Power green On The internal power supply is working properly Off No power connection The switch is NOT receiving power Flashing2 Afailureoftheinternalpowersupply Itshouldbeflashingsimultaneously with the Fault LED If an RPS is connected to the switch the RPS is actively powering the switch the RPS LED will be on Fault orange Off The normal state indicates there are no fault conditions on the s...

Page 17: ...de The Mode LEDs for the ports with the alert condition will also be flashing RPS Status green orange On Flashing orange1 Off Normal operation An external power supply is connected and operating correctly The external power supply could be powering the unit An external power supply is connected but may be powering another switch or the external power supply has experienced a fault Only this LED fl...

Page 18: ...h is not operational until this LED goes off The Test LED also comes on briefly when you hot swap a mini GBIC into the switch the mini GBIC is tested when it is hot swapped Flashing orange2 A component of the switch has failed its self test The switch Fault LED Test LED and the failed component LED will flash simultaneously 1 The flashing behavior is an on off cycle once every 0 8 seconds approxim...

Page 19: ... normal operation This indicates the mini GBIC has been recognized by the switch Switch E2620 PoE Switches Link green On The port is enabled and receiving a link indication from the connected device In PoE mode indicates that the port is configured to enable PoE power delivery to the connected device Off One of these condition exists no active network cable is connected to the port the port is not...

Page 20: ... controlled by the LED Mode select button and the current setting is indicated by the LED Mode indicator LEDs near the button Press the button to step from one view mode to the next The de fault view is Activity Act Link LED port number LED Mode select button and indicator LEDs The PoE switches also have two LEDs per port The Link status is always shown by the Link LED as with the non PoE switches...

Page 21: ...have configured Use this feature if you have misplaced the password and need console access This button is provided as a convenience however if you areconcernedwiththesecurityoftheswitchconfigurationandoperation you should make sure the switch is installed in a secure location This button can be disabled by a CLI command Restoring Factory Default Configuration See Reset Button above Switch LEDs St...

Page 22: ... in chapter 2 Installing the Switch The console can be a PC or workstation running a VT 100 terminal emulator or a VT 100 terminal Back of the Switch Figure 1 4 HP Switch E2620 24 and E2620 48 non PoE Figure 1 5 HP Switch E2620 24 PoE and E2620 48 PoE Figure 1 6 HP Switch 2620 24 PPoE AC power connector Attachgroundinglug optional RPS Input AC power connector RPS Input Attachgroundinglug optional ...

Page 23: ...uppliesprovideredundant system power in case the switch s internal power supply fails The EPS functionality of the 630 provides additional PoE power The E2620 Switches do not support EPS power from the 620 RPS EPS Also refer to the RPS EPS Compatibility Matrix on page 1 4 Power Connector The E2620 Switches and E2620 PoE Switches do not have a power switch they are powered on when connected to an a...

Page 24: ...igurable address aging value Automatically negotiated full duplex operation for the 10 100 and 10 100 1000 RJ 45 ports when connected to other auto negotiating devices the mini GBIC ports always operate at full duplex unless a 100 FX SFP transceiver is installed The 100 FX SFP transceiver can operate at half duplex Easy management of the switches through several available interfaces console interf...

Page 25: ...t Read Me First HP Switches General Safety and Regulatory Information booklet E2620 Switch Specific Safety and Regulatory Information sheet Console cable Customer Support Warranty booklet Accessory kits E2620 Non PoE switches and the J9624A 24 port PPoE switch E2620 PoE switches J9625A and J9627A Kit number 5069 6535 Contains two mounting brackets eight 8 mm M4 screws to attach the mounting bracke...

Page 26: ...ngapore South Africa Thailand Taiwan United States Canada Mexico Israel Chile Brazil Argentina 8121 0834 8120 8377 8120 6802 8120 6806 8120 6804 8120 6807 8120 6809 8121 0919 8121 0673 8121 0964 8120 6805 8121 1035 8120 6980 8121 1069 8120 6869 8121 0857 8121 1034 8120 5336 8120 5340 8120 5342 8120 5339 8120 5334 8120 5341 8121 0671 8121 0967 8121 0973 8121 1009 8120 8389 8121 1132 8120 8375 1 The...

Page 27: ...d for the switch s current requirements In addition be sure to use a power cord displaying the mark of the safety agency that defines the regulations for power cords in your country The mark is your assurance that the power cord can be used safely with the switch If the PoE device s supplied power cord does not fit contact HP networking support When installing the switch the AC outlet should be ne...

Page 28: ... also be wall mounted See page 2 14 for wall mounting instructions The following switches can be rack mounted with rack kit J9583A HP X410 1U Universal 4 Post Rack Mounting Kit J9623A HP Switch E2620 24 J9626A HP Switch E2620 48 J9624A HP Switch E2620 24 PPoE 4 Connect power to the switch page 2 15 Once the switch is mounted plug it into the main power source 5 Connect the network devices page 2 1...

Page 29: ...managedusingawebbrowser fromanSNMPnetwork management station or through a Telnet session Configuration changes can be made by using the included console cable to connect a PC to the switch s console port At this point your switch is fully installed See the rest of this chapter if you need more detailed information on any of these installation steps Figure 2 1 Air flow direction of the E2620 switch...

Page 30: ...t 7 6 cm 3 inches of space for the twisted pair and fiber optic cabling In the back of the switch leave at least 3 8 cm 1 1 2 inches of space for the power cord On the sides of the switch leave at least 7 6 cm 3 inches for cooling 2 Verify the Switch Passes Self Test Before mounting the switch in its network location you should first verify it is working properly by plugging it into a power source...

Page 31: ...installation requires a different power cord than the one supplied with the switch be sure the cord is adequately sized for the switch s current requirements In addition be sure to use a power cord displaying the mark of the safety agency that defines the regulations for power cords in your country The mark is your assurance that the power cord can be used safely with the switch If the PoE device ...

Page 32: ...ult and Test LEDs go off The port LEDs on the front of the switch go into their normal opera tional mode If the ports are connected to active network devices the LEDs behave according to the Port LED View or LED Mode selected The default view mode Link the LEDs should be on and the Mode LEDs will flicker if there is network activity If the ports are not connected to active network devices the Link...

Page 33: ...the manufacture s safety guidelines WARN I NG For safe operation please read the mounting precautions on page 2 3 before mounting a switch E q u i p m e n t C a b i n e t Not e The 12 24 screws supplied with the switch are the correct threading for standard EIA TIA open 19 inch racks If installing the switch in an equipment cabinet such as a server cabinet use the clips and screws that came with t...

Page 34: ... attach the mounting brackets to the switch Not e The mounting brackets have multiple mounting holes and can be rotated allowing for a wide variety of mounting options These include mounting the switch so that its front face is flush with the face of the rack or mounting it in a more balanced position as shown in the illustration above 2 Hold the switch with attached brackets up to the rack and mo...

Page 35: ...2 11 Installing the Switch Installation Procedures Figure 2 6 Mounting in a rack Install 12 24 screws ...

Page 36: ...rackets Not e The mounting brackets have multiple mounting holes and can be rotated allowing for a wide variety of mounting options These include mounting the switch so that its front face is flush with the face of the rack or mounting it in a more balanced position as shown in the illustration WARN I NG For safe reliable installation only use the screws provided in the accessory kit to attach the...

Page 37: ...d the switch with attached brackets up to the rack and move it vertically until rack holes line up with the bracket holes then insert and tighten the four number 12 24 screws holding the brackets to the rack Figure 2 8 Mounting in a rack Install 12 24 screws ...

Page 38: ...side vent holes facing downward C a u t i o n The switch should be mounted only to a wall or wood surface that is at least 1 2 inch 12 7 mm plywood or its equivalent 1 Use a 1 Phillips cross head screwdriver and attach the mounting brackets to the switch with the included 8 mm M4 screws 2 Attach the switch to the wall or wood surface with two 5 8 inch number 12 wood screws not included Figure 2 9 ...

Page 39: ...ch power cord to the table leg or other part of the surface structure to help prevent tripping over the cords C a u t i o n Ensure the air flow is not restricted around the sides and back of the switch 4 Connect the Switch to a Power Source 1 Plug the included power cord into the switch s power connector and into a nearby AC power source See page 2 6 2 Re check the LEDs during self test See LED Be...

Page 40: ...example an end node is at the other end of the cable If the Link LED does not go on when the network cable is connected to the port see Diagnosing With the LEDs in chapter 4 Troubleshooting To disconnect Press the small tab on the plug and pull the plug out of the port RJ 45 connector Unshielded twisted pair cable Category 3 4 or 5 for 10 Mbps ports Category 5 or better for 100 Mbps ports Category...

Page 41: ...operate at half duplex Ensure the network cable is NOT connected when you install or remove an SFP C a u t i o n Use only supported genuine HP SFP transceivers with your switch Non HP SFP transceivers are not supported and their use may result in product malfunction Should you require additional HP SFP transceivers contact your HP networking Sales and Service Office or authorized dealer Installing...

Page 42: ...m the switch you can see it move outward slightly and then pull it from the slot To remove the transceivers that have the wire bail lower the bail until it is approximately horizontal and then using the bail pull the transceiver from the slot Replace the protective plastic cover on the transceiver Connecting Cables to SFP transceivers If you have any SFP transceivers installed in the switch the ty...

Page 43: ... of power to the switches Redundant power to back up the internal switch power supply in case of AC power loss or a fault condition Should the internal switch power supply fail power will be supplied from the external power supply External Power over Ethernet PoE PoE power The external power supplies can supply PoE PoE power to the switch if the internal PoE PoE power supply fails For the 48 port ...

Page 44: ...0 external power supplies can not be used by the E2620 switches for PoE PoE EPS power The 630 external power supply has one EPS port and can provide a maximum of 388 watts of PoE PoE power PoE power is provided at 50 volts and PoE power is provided at 54 Volts It is important to understand the PoE PoE power requirements of the switches because if the PoE PoE power is not planned and implemented co...

Page 45: ...al colored green orange LEDs for each RPS and EPS port Device Connected Power Status Figure 2 12 Back of the 600 RPS EPS Figure 2 13 Back of the 620 RPS EPS Figure 2 14 Front and back of the 630 RPS EPS EPS 1 RPS 5 R5 RPS 3 R3 R1 Power Status RPS 1 R2 RPS 2 RPS 4 R4 R6 RPS 6 E1 E2 EPS 2 Device Connected Power Status Device Connected RPS ports EPS ports RPS port LEDs EPS port LEDs EPS ports RPS por...

Page 46: ...Status green and orange On The cooling fans are operating normally Blink orange1 A cooling fan has failed The unit Fault LED will be blinking simultaneously Port Status also on back panel of the external power supplies Device Connected green over laid with the port number On There is a valid connection to a device Off There is no valid device connected to the port Power Status green and orange On ...

Page 47: ...PScanprovidebackuppowersupportforuptosixHPswitches In the illustration below one HP E2620 24 PoE switch is connected to an RPS port on a 600 RPS EPS Figure 2 15 Connecting RPS to one switch 620 RPS EPS The 620 RPS EPS can provide backup power support for two HP switches In Figure 2 16 two HP E2620 PoE switches are connected to the RPS ports on a 620 RPS EPS Figure 2 16 Connecting RPS to two switch...

Page 48: ...the following illustration one HP E2620 48 PoE switch is being supplied with external PoE power from a 630 RPS EPS The switch provides PoE power to Ethernet devices connected to the ports Figure 2 18 Connecting the 630 EPS to a switch For further information regarding the external power supply PoE PoE capabilities see the following manuals HP Power over Ethernet PoE PoE Planning and Implementation...

Page 49: ...band console access or through DHCP Bootp For more information on IP addressing and on starting a Telnet session see chapter 3 Configuring the Switch in the Management and Configuration Guide which is on the HP Web site at www hp com networking support See page 1 14 The E2620 Switches can simultaneously support one out of band console session through the Console Port and in band Telnet console ses...

Page 50: ... two or three times and you will see the copyright page and the message Press any key to continue Press a key and you will then see the switch console command CLI prompt for example ProCurve Switch If you want to continue with console management of the switch at this time see chapter 3 Getting Started With Switch Configuration for some basic configuration steps For more detailed information refer ...

Page 51: ...op Switch Figure 2 20 Basic desktop configuration The E2620 Switches are designed to be used primarily as desktop switches to which end nodes printers other peripherals and servers are directly connected as shown in the above illustration The end node devices are connected to the switch by straight through or crossover twisted pair cables Either cable type can be used because of the Auto MDIX feat...

Page 52: ...cal servers attached are both connected to a Switch E2620 48 The devices attached to the two desktop switches can now communicate with each other through the switch They can also all communicate with the server that is connected to a 1000Base T port on the switch Switch E2620 48 Server with Gigabit Ethernet NIC Category 5e twisted pair straight through or crossover cable for 1000 Mbps connection t...

Page 53: ...ate the link characteristics for this feature to work The switch in turn can be connected to a network backbone through fiber optic cabling connected to a Gigabit SX LX or LH mini GBIC Now all the devices on these network segments can access other network resources that are connected elsewhere on the network backbone Always remember when connecting fiber optics that all components match in specifi...

Page 54: ...the devices in this network can communicate with each other For example with Gigabit SX Mini GBICs installed in a Mini GBIC Module in the E5406 zl Switch the entire switched topology could be connected to a campus backbone as shown in the illustration above Not e In the Figure 2 22 the 1000 Mbps fiber optic connection between the E2620 Switches and the 5406 zl Switch is by way of a Gigabit SX mini...

Page 55: ...bove illustration Except now these switches can supply PoE power to end devices such as IP telephones As shown in the above illustration the IP telephones can be connected in line that is between the switch and the end device in this case a PC The IP telephones have two ports one in and one out Therefore the phone receives voice and power from the switchand thePC can send andreceive data through t...

Page 56: ...oth the telephones and WAPs will receive PoE power from each of the switches Only devices directly connected to the PoE switches can receive PoE power Devices connected to a non PoE segment switch cannot receive PoE power Server with Gigabit Ethernet NIC E2620 48 Non PoE Switch E2620 48 PoE Switch 630 RPS EPS PCs printers and local servers Twisted pair straight throughorcrossovercables Wireless Ac...

Page 57: ...ting to a Backbone Switch Implementing PoE Figure 2 25 Networking PoE switches to a gigabit ethernet backbone To Gigabit Ethernet backbone Wireless Access Point 630 RPS EPS E2620 48 PoE Switch E2620 48 PoE Switch Gigabit fiber optic cable E5406 zl Switch E2620 48 non PoE Switch ...

Page 58: ...620 or E2620 PoE Switch as the Commander and give that switch an IP address Up to 15 other switches in the network can then easily be configured as Members of the stack and managed through the Commander s IP address The management includes Telnet access and web browser interface access to the Commander and to each Member switch through the Commander For more information on stacking your switch see...

Page 59: ...at their default settings or you can configure them with values you enter Many other features can be configured through the switch s console interface to optimize the switch s performance to enhance your control of the network traffic and to improve network security Once an IP address has been configured on the switch these features can be accessed more conveniently through a remote Telnet session...

Page 60: ...LI prompt the default display The CLI prompt appears for example HP 2 At the prompt enter the setup command to display the Switch Setup screen The following illustration shows the Setup screen with the default settings Figure 3 1 Example console setup screen 3 Use the Tab key to select the Manager Password field and enter a manager password of up to 16 printable ASCII characters 4 Tab to the IP Co...

Page 61: ...Name public Default setting recommended Spanning Tree Enabled No Default setting recommended unless STP is already running on your network or the switch will be used in complex network topologies Default Gateway blank Optional Enter the IPaddressofthenext hopgateway node ifnetwork traffic needs to be able to reach off subnet destinations Time Sync Method None Optional The protocol the switch uses ...

Page 62: ... that can be configured on the E2620 Switches see the Management and Configuration Guide which is on the HP Web site at www hp com networking support see page 1 14 To Recover from a Lost Manager Password If you cannot start a console session at the manager level because of a lost Manager password you can clear all passwords and user names by getting physical access to the switch and pressing and h...

Page 63: ...o the switch s IP address 3 You will see the copyright page and the message Press any key to continue Press a key and you will then see the switch console command CLI prompt for example HP Enter help or to see a list of commands that can be executed at the prompt Entering any command followed by help provides more detailed context help information about the command Entering any command followed by...

Page 64: ... using the web browser interface please see the Management and Configuration Guide which is on the HP Web site at www hp com networking support see page 1 14 An extensive help system is also available for the web browser interface To access the help system though the subnet on which the switch is installed must have access to the internet ...

Page 65: ... 9 hardware diagnostic tests page 4 10 restoring the factory default configuration page 4 12 downloading new software to the E2620 Switches page 4 13 HP Customer Support Services page 4 13 Basic Troubleshooting Tips Most problems are caused by the following situations Check for these items first when starting your troubleshooting Connecting to devices that have a fixed full duplex configuration Th...

Page 66: ...le tester is a recommended tool for every 100Base TX and 1000Base T network installation Improper Network Topologies It is important to make sure you have a valid network topology Common topology faults include excessive cablelengthandexcessiverepeaterdelaysbetweenendnodes Ifyouhave network problems after recent changes to the network change back to the previous topology If you no longer experienc...

Page 67: ...he normal operation of the Spanning Tree GVRP and LACP features may put the port in a blocking state Or the port just may have been configured as disabled through software Use the switch console to determine the port s configuration and verify that there is not an improper or undesired configuration of any of the switch features that may be affecting the port For more information see the Managemen...

Page 68: ...rresponding diagnostic tip on the next few pages Table 4 1 LED Error Indicators LED Pattern Indicating Problems Diagnostic Tips Power Fault RPS EPS Test Fan Port Link LED Off with powercord plugged in 1 1 1 1 1 1 On Prolonged On 1 1 Prolonged On 1 1 On Flashing2 1 1 Flashing2 1 1 On Flashing2 1 1 Off Flashing2 1 On Flashing2 1 1 Flashing2 1 Flashing2 On Off 1 1 Off 1 Off with cable connected On Of...

Page 69: ...y selecting it from the console Main Menu or by typing Show log at the Manager command prompt If necessary to resolve the problem contact your HP authorized LAN dealer or use the electronic support services from HP to get assistance See the Customer Support Warranty booklet for more information Oneoftheswitch cooling fans may have failed Try disconnecting power from the switch and wait a few momen...

Page 70: ...eceive port is connected to the transmit port on the connected device For the dual personality 10 100 1000 T ports be sure a mini GBIC is not installed in the associated slot For1000Base Tconnections verifythenetworkcablingcomplieswiththeIEEE802 3ab standard The cable should be installed according to the ANSI TIA EIA 568 A 5 specifications Cable testing should comply with the statedlimitations for...

Page 71: ...reen using the show interfaces command to see if the port has been configured as disabled Other switch features that may affect the port operation include VLANs and IGMP Use the switch console to see how the port is configured for these features For software troubleshooting tips seethechapter Troubleshooting inthe Management and Configuration Guide which is on the HP Web site at www hp com network...

Page 72: ...e table for the LED pattern you see on your switch 2 Refer to the corresponding diagnostic tip Table 4 2 LED Error Indicators Diagnostic Tips LED Pattern Indicating Problems Diagnostic Tips Fault PoE Status Port Link Port Mode Off Fast Flash Orange Slow Flash Green Off Slow Flash Slow Flash Orange Slow Flash Green Off Tip Problem Solution PoE oversubscription condition All available PoE power is a...

Page 73: ...ts network connections and to help you take advantage of these proactive networking features A graphical web browser interface you can use to manage your switch from a PC running a supported web browser for example Microsoft Internet Explorer and Netscape Communicator Afull featuredeasy to useconsoleinterfaceyoucanaccessbyconnecting a standard terminal or PC running a terminal emulator to the swit...

Page 74: ...Test LEDs on the front of the switch go off after approximately 50 seconds If these LEDs stay on longer than 60 seconds or begin flashing there may be a problem with the switch See Diagnosing With the LEDs on page 4 4 for information on interpreting the LED patterns Checking Console Messages Useful diagnostic messages may be displayed on the console screen when the switch is reset As described in ...

Page 75: ...ts MAC address Ping Test a network layer test used on IP networks that sends test packets to any device identified by its IP address These tests can be performed through the switch console interface from a terminal connected to the switch or through a Telnet connection or from the switch s web browser interface For more information see the Management and Configuration Guide which is on the HP Web ...

Page 76: ...oblems you should save the switch configuration prior to performing the factory default reset Then after the reset and resolution of the original problem you can restore the saved configuration to the switch For both the save and restore processes you can use the console copy command For more information on this command see the Management and Configuration Guide which is on the HP Web site at www ...

Page 77: ...P Web site www hp com networking support also provides up to date support information Additionally your HP authorized network reseller can provide you with assistance both with services that they offer and with services offered by HP Before Calling Support Before calling your networking dealer or HP Support to make the support process most efficient you first should retrieve the following informat...

Page 78: ......

Page 79: ... 3 2 kg 7 04 lbs E2620 24 PoE J9625A 44 3 cm 17 4 in 36 6 cm 14 4 in 4 4 cm 1 73 in 4 83 kg 10 67 lbs E2620 48 PoE J9627A 44 3 cm 17 4 in 36 6 cm 14 4 in 4 4 cm 1 73 in 5 22 kg 11 53 lbs E2620 Non PoE Switches AC voltage Maximum current Frequency range E2620 24 J9623A 100 127 volts 200 240 volts 0 43A 0 27A 50 60 Hz 50 60 Hz E2620 48 J9626A 100 127 volts 200 240 volts 0 68A 0 39A 50 60 Hz 50 60 Hz...

Page 80: ...ut EPS Input 12 VDC 54 VDC 4 0A 8 0A E2620 Switches Operating Non Operating Temperature 0 C to 55 C 32 F to 131 F 40 C to 70 C 40 F to 158 F Relative humidity non condensing 15 to 95 at 40 C 104 F 15 to 90 at 65 C 149 F Maximum altitude 3 0 Km 10 000 ft 4 6 Km 15 000 ft Theoperatingmaximumaltitudeshouldnotexceedthatofanyaccessorybeingconnected to any switch in the E2620 series Switch Model Combine...

Page 81: ...tch E2620 24 PoE J9625A Geraeuschemission LwA 29 7 dB am fiktiven Arbeitsplatz nach DIN 45635 T 19 Noise Emission LpA 34 0 dB at virtual work space according to DIN 45635 T 19 Switch E2620 48 PoE J9627A Geraeuschemission LwA 25 3 dB am fiktiven Arbeitsplatz nach DIN 45635 T 19 Noise Emission LpA 34 0 dB at virtual work space according to DIN 45635 T 19 RPS EPS Connectors EPS connector A 2x7 Molex ...

Page 82: ...2 3u 100BASE TX IEEE 802 3ab 1000BASE T 100 FX IEEE 802 3u 100BASE FX EN IEC 60825 Class 1 Laser Product Laser Klasse 1 100 BX IEEE 802 3ah 100BASE BX10 EN IEC 60825 Class 1 Laser Product Laser Klasse 1 1000 SX IEEE 802 3z 1000BASE SX EN IEC 60825 Class 1 Laser Product Laser Klasse 1 1000 LX IEEE 802 3z 1000BASE LX EN IEC 60825 Class 1 Laser Product Laser Klasse 1 1000 LH not an IEEE standard EN I...

Page 83: ... B 2 Cabling Specifications Twisted pair copper 10 Mbps Operation Category 3 4 or 5 100 ohm unshielded twisted pair UTP or shielded twisted pair STP cable complying with IEEE 802 3 10BASE T specifications 100 Mbps Operation Category 5 100 ohm UTP or STP cable complying with IEEE 802 3u 100BASE TX specifications 1000 Mbps Operation Category 5 100 ohm 4 pair UTP or STP cable complying with IEEE 802 ...

Page 84: ...uently overlooked when testing cable and they must also comply with the cabling standards Technology distance specifications Table B 3 Technology Distance Specifications Technology Supported cable type Multimode fiber modal bandwidth Supported distances 100 FX multimode fiber any up to 2 000 meters 100 BX single mode fiber N A 0 5 10 000 meters 1000 T twisted pair copper N A up to 100 meters 1000 ...

Page 85: ...oth ends of the network link The patch cord consists of a short length of single mode fiber cable coupled to graded index multimode fiber cable on the transmit side and only multimode cable on the receive side The section of single mode fiber is connected in such a way that it minimizes the effects of the differential mode delay in the multimode cable Not e Most of the time if you are using good q...

Page 86: ...lthough crossover cables can also be used for any of the connections The 10 100 1000 T ports support the IEEE 802 3ab standard which includes the Auto MDI MDI X feature which operates the same way If you connect a E2620 or E2620 PoE Switch twisted pair port to another switch or hub which typically have MDI X ports the E2620 Switch port automatically operates as an MDI port If you connect it to an ...

Page 87: ...sion See Note on 1000Base T Cable Require ments on page B 1 for more information on 1000Base T cabling For 10 Mbps connections to the ports you can use Category 3 4 or 5 unshielded twisted pair cable as supported by the IEEE 802 3 Type 10Base T standard For 100 Mbps connections to the ports use 100 ohm Category 5 UTP or STP cable only as supported by the IEEE 802 3u Type 100Base TX standard For 10...

Page 88: ...ple 100 Mbps Full Duplex the ports operate as MDI X ports and straight through cables must be then used for connections to PC NICs and other MDI ports Cable Diagram Not e Pins 1 and 2 on connector A must be wired as a twisted pair to pins 1 and 2 on connector B Pins 3 and 6 on connector A must be wired as a twisted pair to pins 3 and 6 on connector B Pins 4 5 7 and 8 are not used in this applicati...

Page 89: ...uplex the ports operate as MDI X ports and crossover cables must be then used for connections to hubs or switches or other MDI X network devices Cable Diagram Not e Pins 1 and 2 on connector A must be wired as a twisted pair to pins 3 and 6 on connector B Pins 3 and 6 on connector A must be wired as a twisted pair to pins 1 and 2 on connector B Pins 4 5 7 and 8 are not used in this application alt...

Page 90: ...on connector A must be wired as a twisted pair to pins 1 and 2 on connector B Pins 3 and 6 on connector A must be wired as a twisted pair to pins 3 and 6 on connector B Pins 4 and 5 on connector A must be wired as a twisted pair to pins 4 and 5 on connector B Pins 7 and 8 on connector A must be wired as a twisted pair to pins 7 and 8 on connector B Pin Assignments For 1000Base T operation all four...

Page 91: ...ent volt ages such as lightning or disturbances in the electrical utilities power grid Handle exposed metalcomponents ofthe network with caution Servicing There are no user serviceable parts inside these products Any servicing adjustment maintenance or repair must be performed only by service trained personnel These products do not have a power switch they are powered on when the power cord is plu...

Page 92: ...nsions transitoires dangereuses telles que la foudre ou des perturba tions dans le réseau d alimentation public Manipulez les composants métalliques du réseau avec précautions Aucune pièce contenue à l intérieur de ce produit ne peut être réparée par l utilisateur Tout dépannage réglage entretien ou réparation devra être confié exclusivement à un personnel qualifié Cet appareil ne comporte pas de ...

Page 93: ... werden beispielsweise durch Blitz oder Störungen in dem Starkstromnetz des Elektrizitätswerks Bei der Handhabung exponierter Metallbestandteile des Netzwerkes Vorsicht walten lassen Dieses Gerät enthält innen keine durch den Benutzer zu wartenden Teile Wartungs Anpassungs Instandhaltungs oder Reparaturarbeiten dürfen nur von geschultem Bedienungspersonal durchgeführt werden Dieses Gerät hat keine...

Page 94: ...AN possono occasionalmente andare soggetti a pericolose tensioni transitorie ad esempio provocate da lampi o disturbi nella griglia d alimen tazione della società elettrica siate cauti nel toccare parti esposte in metallo della rete Nessun componente di questo prodotto può essere riparato dall utente Qualsiasi lavoro di riparazione messa a punto manutenzione o assistenza va effettuato esclusi vame...

Page 95: ...que los cables de la LAN se vean sometidos de vez en cuando a voltajes momentáneos que entrañen peligro rayos o alteraciones en la red de energía eléctrica Manejar con precaución los componentes de metal de la LAN que estén al descubierto Este aparato no contiene pieza alguna susceptible de reparación por parte del usuario Todas las reparaciones ajustes o servicio de mantenimiento debe realizarlos...

Page 96: ...terconectados com segurança Os cabos de LAN podem ocasionalmente estar sujeitos a tensões tran sitórias perigosas como raios ou perturbações na rede de energia Tenha cuidado ao manipular componentes metálicos da rede Manutenção Não há peças internas que possam sofrer manutenção pelo usuário nestes produtos Qualquer manutenção ajuste ou reparo deve ser realizado apenas por pessoal treinado Estespro...

Page 97: ...C 7 Safety and EMC Regulatory Statements Safety Information Japan Safety Information Japan J a p a n P o w e r C o r d Wa r n i n g ...

Page 98: ...C 8 Safety and EMC Regulatory Statements Safety Information China Safety Information China ...

Page 99: ...n a commercial environment This equipment gener ates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications Operation of this equipment in a residential area may cause interference in which case the user will be required to correct the interference at his own expense Canada This product comp...

Page 100: ...C 10 Safety and EMC Regulatory Statements EMC Regulatory Statements Korea Taiwan ...

Page 101: ...ith part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The product herewith complies with the requirements of the Low Voltage Directive 2006 95 EC the EMC Directive 2004 108 EC and carries the CE marking accord...

Page 102: ...he FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The product herewith complies with the requirements of the Low Voltage Directive 2006 95 EC the EMC Directive 2004 108 EC and carries the CE marking accordingly Additional...

Page 103: ...plies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation The product herewith complies with the requirements of the Low Voltage Directive 2006 95 EC the EMC Directive 2004 108 EC and carries the CE marking...

Page 104: ...C 14 Safety and EMC Regulatory Statements EMC Regulatory Statements ...

Page 105: ...yret genvindes på en måde der beskytter både mennesker og miljø Yderligere oplysninger om hvor du kan aflevere kasseret udstyr til genvinding kan du få hos kommunen den lokale genbrugsstation eller i den butik hvor du købte produktet Seadmete jäätmete kõrvaldamine eramajapidamistes Euroopa Liidus See tootel või selle pakendil olev sümbol näitab et kõnealust toodet ei tohi koos teiste majapidamisjä...

Page 106: ...etrennte Sammlung und ordnungs gemäße Entsorgung Ihrer Altgeräte trägt zur Erhaltung der natürlichen Ressourcen bei und garantiert eine Wiederverwertung die die Gesundheit des Menschen und die Umwelt schützt Informationen dazu wo Sie Rücknahmestellen für Ihre Altgeräte finden erhalten Sie bei Ihrer Stadtverwaltung den örtlichen Müllentsorgungsbetrieben oder im Geschäft in dem Sie das Gerät erworbe...

Page 107: ...ritumiem Jūs atbildat par to lai nolietotās iekārtas tiktu nodotas speciāli iekārtotos punktos kas paredzēti izmantoto elektrisko un elektronisko iekārtu savākšanai otrreizējai pārstrādei Atsevišķa nolietoto iekārtu savākšana un otrreizējā pārstrāde palīdzēs saglabāt dabas resursus un garantēs ka šīs iekārtas tiks otrreizēji pārstrādātas tādā veidā lai pasargātu vidi un cilvēku veselību Lai uzzinā...

Page 108: ... k ochrane prírodných zdrojov a zabezpečuje že recyklácia sa vykonáva spôsobom chrániacim ľudské zdravie a životné prostredie Informácie o zberných miestach na recykláciu vyradených zariadení vám poskytne miestne zastupiteľstvo spoločnosť zabezpečujúca odvoz domového odpadu alebo obchod v ktorom ste si výrobok zakúpili Odstranjevanje odslužene opreme uporabnikov v zasebnih gospodinjstvih v Evropsk...

Page 109: ... RPS EPS cable length 2 20 cable length specifications A 3 cables connecting cables to switch ports 2 15 effects of non standard cables 4 2 infrastructure requirements 2 6 serial for direct console connection 2 26 cables twisted pair category 3 4 5 B 5 cross over cable pin out B 7 MDI X to MDI connections B 6 B 8 MDI X to MDI X connections B 7 pin outs B 6 B 8 straight through cable pin out B 6 B ...

Page 110: ...ctrical specifications switch A 1 EMC regulatory statements C 9 environmental specifications BTU ratings A 2 environmental specifications switch A 2 EPS input port 1 13 external power supply cables 2 20 operating characteristics 2 20 External power supply connections sample topology 2 23 F factory default configuration restoring 1 11 4 12 Fan Status LED 1 7 2 22 Fault LED 1 6 2 22 behavior during ...

Page 111: ... the switch considerations 2 6 M MDI X to MDI network cable B 6 B 8 MDI X to MDI X network cable B 7 mini GBICs full duplex operation half duplex operation 2 17 slot location on switch 1 5 mounting the switch in a rack or cabinet 2 9 precautions 2 3 on a horizontal surface 2 15 on a wall 2 14 precautions 2 14 Multiple Display Port LEDs 1 10 N network cables HP Auto MDIX feature B 4 required types ...

Page 112: ...et 4 12 location of Reset button 1 11 troubleshooting procedure 4 10 RPS EPS 2 19 operation 2 20 S safety and regulatory statements C 1 safety specifications A 4 segment switch sample topology 2 28 2 32 self test Fault LED behavior 2 8 LED behavior during 2 8 Power LED behavior 2 8 Self Test LED 1 8 behavior during factory default reset 4 12 behavior during self test 2 8 serial cable for direct co...

Page 113: ...nfiguration 4 3 checking the console messages 4 10 checking the LEDs 4 10 common network problems 4 1 connecting to fixed full duplex devices 4 1 diagnostic tests 4 10 effects of improper topology 4 2 effects of non standard cables 4 2 link test 4 11 Ping test 4 11 Proactive Network tools 4 9 restoring factory default configuration 4 12 testing connections to other devices 4 11 testing end to end ...

Page 114: ...6 Index ...

Page 115: ......

Page 116: ...in is subject to change without notice The only warranties for HP products and services are set forth in the express warranty statements accompany ing such products and services Nothing herein should be construed as constituting an additional warranty HP will not be liable for technical or editorial errors or omissions contained herein January 2013 Manual Part Number 5998 0902 ...

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