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4-4

Troubleshooting

Diagnosing with the LEDs

rou

esh

oot

Diagnosing with the LEDs

Table 3-1 shows LED patterns on the switch and the switch modules that
indicate problem conditions.

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

Refer to the corresponding diagnostic tip on the next few pages.

Table 4-1.

LED Error Indicators

LED Pattern Indicating Problems

Diagnostic

Tips

Power

Fault

Self Test

Fan

Status

Port LED

(in Link view mode)

Off with

power cord

plugged in

➊

Prolonged On

➋

Blinking

†

Blinking

†

➌

Blinking

†

Off

Blinking

†

➍

Blinking

†

Blinking

†

Blinking

†

➎

Off

Off with cable

connected

➏

Off

On, but the port is not

communicating

➐

* This LED is not important for the diagnosis.

†

The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.

Содержание J4899A

Страница 1: ...hp procurve switch 2650 installation and getting started guide www hp com go hpprocurve ...

Страница 2: ......

Страница 3: ...HP Procurve Switch 2650 Installation and Getting Started Guide ...

Страница 4: ... TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Hewlett Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett Packard W...

Страница 5: ... Switch 2650 Included Parts 2 1 Installation Procedures 2 2 Summary 2 2 Installation Precautions 2 3 1 Prepare the Installation Site 2 4 2 Installing or Removing mini GBICs 2 6 3 Verify the Switch Passes Self Test 2 8 LED Behavior 2 9 4 Mount the Switch 2 10 Rack or Cabinet Mounting 2 10 Wall Mounting 2 13 Horizontal Surface Mounting 2 15 5 Connect the Switch to a Power Source 2 15 6 Connect the N...

Страница 6: ...ress for Remote Switch Management 3 5 Starting a Telnet Session 3 5 Starting a Web Browser Session 3 5 4 Troubleshooting Basic Troubleshooting Tips 4 1 Diagnosing with the LEDs 4 4 Proactive Networking 4 8 Hardware Diagnostic Tests 4 9 Testing the Switch by Resetting It 4 9 Checking the Switch LEDs 4 9 Checking Console Messages 4 9 Testing Twisted Pair Cabling 4 10 Testing Switch to Device Network...

Страница 7: ...4 Twisted Pair Cable Connector Pin Outs B 5 Straight Through Twisted Pair Cable for 10 Mbps or 100 Mbps Network Connections B 7 Cable Diagram B 7 Pin Assignments B 7 Crossover Twisted Pair Cable for 10 Mbps or 100 Mbps Network Connection B 8 Cable Diagram B 8 Pin Assignments B 8 Straight Through Twisted Pair Cable for 1000 Mbps Network Connections B 9 Cable Diagram B 9 Pin Assignments B 9 C Safety...

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Страница 9: ...ndirectlyconnectcomputers printers and servers to provide dedicated bandwidth to those devices and you can build a switched network infrastructure by connecting the switch to hubs other switches or routers In addition the Switch 2650 offers full network management capabilities This chapter describes your HP Switch 2650 including Front and back of the switch Switch features Port LED View Self Test ...

Страница 10: ...enabled and the associated RJ 45 connector is disabled and cannot be used If the mini GBIC is removed the associated RJ 45 port is automatically re enabled Port LED View Self Test Clear Reset Fan Status 4 5 48 47 46 45 43 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 Spd mode off 10 Mbps flash 100 Mbps on 1000 Mbps 10 100Base TX Ports...

Страница 11: ...e an RJ 45 port and the switch Fault LED will blink simultaneously Port LEDs green over laid with the port number Displays port link information network activity information whether the port is configured for full duplexoperation or the speed of the connection depending on the Port LED View selected See Port LED View Select Button and Indicator LEDs on the next page for more information Port LED V...

Страница 12: ... the Activity Act indicator LED is lit each port LED displays activity information for the associated port it flickers as network traffic is received and transmitted through the port If the Full Duplex FDx indicator LED is lit the port LEDs light for those ports that are operating in full duplex T M green ports 49 and 50 only On For the dual personality ports indicates the enabled port if the T is...

Страница 13: ... any switch console access passwords that you may have configured Use this feature if you have misplaced the password and need console access This button is provided for your convenience but its presence means that if you are concerned with the security of the switch configuration and operation you should make sure the switch is installed in a secure location such as a locked wiring closet Restori...

Страница 14: ...itch 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 Power Connector The Switch 2650 does not have a power switch it is powered on when connected to an active AC power source The switch automatically adjusts to any voltage between 100 240 volts and either 50 or 60 Hz There are no voltage range settings required Conso...

Страница 15: ...resses in each switch s 8000 address forwarding table with configurable 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 easy management of the switch through several available interfaces console interface a full featured easy to use VT 100...

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Страница 17: ...2650 Installation and Getting Started Guide J4899 90001 this manual HP Procurve Product Documentation CD ROM contains PDF file copies of the documentation for the Switch 2650 including the Management and Configuration Guide and for most other HP Procurve switches HP TopTools for Hubs Switches CD ROM and booklet Console cable Customer Support Warranty booklet Accessory kit 5064 2085 two mounting br...

Страница 18: ...s self test page 2 8 This is a simple process of plugging the switch into a power source and observing that the LEDs on the switch s front panel indicate correct switch operation 4 Mount the switch page 2 10 The Switch 2650 can be mounted in a 19 inch telco rack in an equipment cabinet on a wall or on a horizontal surface 5 Connect power to the switch page 2 15 Once the switch is mounted plug it i...

Страница 19: ...r cord than the one supplied with the switch be sure to use a power cord displaying the mark of the safety agency thatdefinesthe regulations for power cords in your country The mark is your assurance that the power cord can be used safely with the switch When installing the switch note that the AC outlet should be near the switch and shouldbe easily accessible incase the switch mustbe powered off ...

Страница 20: ... would be best to cable the ports initially with category 5 cable The 10 100 Base TX ports on the Switch 2650 include the HP Auto MDIX feature which allows you to use either straight through or crossover twisted pair cables for connecting to any network devices including end nodes suchascomputers ortootherswitches hubs and routers 10 100 1000Base T For either 10 100 Mbps or 1000 Mbps operation Cat...

Страница 21: ... SX LC mini GBIC 62 5 125 µm or 50 125 µm core cladding diameter graded index multimode fiber optic cables that are fitted with LC connectors 62 5 µm cable 160 MHz km 220 meters 200 MHz km 275 meters 50 µm cable 400 MHz km 500 meters 500 MHz km 550 meters Gigabit LX on Gigabit LX LC mini GBIC Single mode cables fitted with LC connectors 62 5 125 µm or 50 125 µm core cladding diameter graded index ...

Страница 22: ...rted Make sure that the network cable is NOT connected when you install or remove a mini GBIC When this manual was printed the supported mini GBICs include the following HP Procurve Gigabit SX LC mini GBIC J4858A HP Procurve Gigabit LX LC mini GBIC J4859A HP Procurve Gigabit LH LC mini GBIC J4860A Ca ut ion The HP Procurve mini GBICs are Class 1 laser devices Avoid direct eye exposure to the beam ...

Страница 23: ...rent release mechanisms a plastic tab on the bottom of the mini GBIC a plastic collar around the mini GBIC or a wire bail To remove the mini GBICs that have the plastic or plastic collar push the tab orcollartowardtheswitchuntilyouseethemini GBICreleasefromtheswitch you can see it move outward slightly and then pull it from the slot To remove the mini GBICs that have the wire bail lower the bail u...

Страница 24: ...oes not have a power switch It is powered on when the power cord is connected to the switch and to a power source For safety the power outlet should be located near the switch installation The switch automatically adjusts to any voltage between 100 240 volts and either 50 or 60 Hz There are no voltage range settings required If your installation requires a different power cord than the one supplie...

Страница 25: ...s 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 selected In the default view mode Link the LEDs should be on Iftheportsare not connectedto active network devices the LEDs will stay off If the LED display is different than what is described above especially if the Fault and Self T...

Страница 26: ...e rotated allowing for a wide variety of mounting options Wa r n i ng For safe operation please read the mounting precautions on page 2 3 before mounting a switch Eq ui pm en t Ca bi ne t N ot e The 12 24 screws supplied with the switch are the correct threading for standard EIA TIA open 19 inch racks If you are installing the switch in an equipment cabinet such as a server cabinet use the clips a...

Страница 27: ...unting 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 N ot e Steps 2 3 and 4 on the next page describe a convenient method of mounting the switch in a rack by placing it on two screws that you first install in the rack You may instead just hold the switch with attached brackets up to the rack and move it ...

Страница 28: ...k cabinet upright as shown in the illustration below Ensure that the screws are at the same level in each upright 3 Place the switch in the rack and lower it so the notches in the bottom of the bracket slide onto the screws then tighten these screws Partiallyinstallascrew into the top hole of a close 0 5 inch pair on both sides of the rack Lowerswitchwithmounting brackets onto the partially instal...

Страница 29: ...afe operation do not install the switch with the back face of the switch with the fan vents facing either downward or upward Ca ut ion The switch should be mounted only to a wall or wood surface that is at least 1 2 inch 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...

Страница 30: ...he Switch 2650 For Bookshelf Wall Mounting For Flat Wall Mounting 5 8 inch wood screw Second 5 8 inch wood screw hidden M4 screws 5 8 inch wood screws M4 screws Note that the brackets are attached on opposite corners This improves the stability of the switch on the wall ...

Страница 31: ... of the switch within the embossed angled lines Use a sturdy surface in an uncluttered area You may want to secure the networking cables and switch power cord to the table leg or other part of the surface structure to help prevent tripping over the cords Ca ut ion Make sure the air flow isnot restricted around the sides and back of the switch 5 Connect the Switch to a Power Source 1 Plug the inclu...

Страница 32: ...mini GBICs N ot e The mini GBIC slots are shared with the two 10 100 1000Base T RJ 45 ports If a mini GBIC is installed in a slot the associated RJ 45 port is disabled If you have any mini GBICs installed in the switch the type of network connections you will need to use depends on the type of mini GBICs you have installed See the table on page 2 5 and appendix B Switch Ports and Network Cables fo...

Страница 33: ... either out of band console access or through DHCP Bootp For more information on IP addressing and on starting a Telnet session see chapter 3 Getting Started With Switch Configuration and the Manage ment and Configuration Guide whichison the DocumentationCD ROM that came with your switch The Switch 2650 can simultaneously support one out of band console session through the Console Port and one in ...

Страница 34: ...start the PC terminal program 3 Press Enter 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 HP Procurve Switch 2650 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 confi...

Страница 35: ...t 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 HP Auto MDIX and IEEE Auto MDI MDI X features on the Switch 2650 Port LED View Self Test Clear Reset Fan Status 4 5 48 47 46 45 43 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 Spd mode o...

Страница 36: ...n all cases the device ports must be configured to auto negotiate 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 installed in the switch Now all the devices on these network segments can access other network resources that are connected elsewhere on the network back...

Страница 37: ...0 49 T M T M Power Fault hp procurve switch 2650 J4899A Use only one T or M for each Gigabit port 1 2 3 Spd Lnk Act FDx Port LED View Self Test Clear Reset Fan Status 4 5 48 47 46 45 43 44 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 Spd mode off 10 Mbps flash 100 Mbps on 1000 Mbps 10 100Bas e TX Ports 1 48 Gig T Ports Mini GBIC Ports 1...

Страница 38: ...dentifytheswitchasthe Commander andgivethatswitchanIPaddress 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 2650 please see th...

Страница 39: ...ess and subnet mask compatible with your network Also you should configure a Manager password to control access privileges from the console and web browser interface Other parameters in the Switch Setup screen can be left 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 pe...

Страница 40: ...re the switch for manage ment and password protection in your network is to use a direct console connection to the switch start a console session and access the Switch Setup screen 1 Using the method described in the preceding section connect a terminal device to the switch and display the switch console command CLI prompt the default display The CLI prompt appears displaying the switch model numb...

Страница 41: ...e West or East of GMT Community 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 Enterthe IPaddress ofthenext hop gatewaynodeif network traffic needs to be able to reach off subnet destinations Time Sync Method None Option...

Страница 42: ...ubs Switches Some basic information on managing your switch is included in the next section For more information on the console web browser and SNMP management interfaces and all the features that can be configured on the Switch 2650 please see the Management and Configuration Guide which is on the Documentation CD ROM that came with your switch To Recover from a Lost Manager Password If you canno...

Страница 43: ...the switch and connect to 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 Procurve Switch 2650 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...

Страница 44: ...e see the Management and Configuration Guide which is on the Documentation CD ROM that came with your switch 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 or HP TopTools for Hubs Switches needs to be installed on a network management station that is on the subnet...

Страница 45: ... following basic troubleshooting tips page 4 1 diagnosing with the LEDs page 4 4 Proactive Networking tools page 4 8 hardware diagnostic tests page 4 9 restoring the factory default configuration page 4 11 downloading new software to the Switch 2650 page 4 12 HP Customer Support Services page 4 12 Basic Troubleshooting Tips Most problems are caused by the following situations Check for these items...

Страница 46: ...Cables and Connectors for pinouts and correct cable wiring A category 5 cable 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 cablelengthandexcessive repeaterdelaysbetweenendnodes Ifyouhave network problems after recent changes to...

Страница 47: ...e that the 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 M...

Страница 48: ...n the next few pages Table 4 1 LED Error Indicators LED Pattern Indicating Problems Diagnostic Tips Power Fault Self Test Fan Status Port LED in Link view mode Off with powercord plugged in On Prolonged On Prolonged On On Blinking Blinking On Blinking Off Blinking On Blinking Blinking Blinking On Off Off Off with cable connected On Off Off On but the port is not communicating This LED is not impor...

Страница 49: ...ndition You can view the console log at that point by selecting it from the console Main Menu 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 Oneorbothofthe switch cooling fans may have failed Try disconnecting power from the switch and wait a fe...

Страница 50: ...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 For 1000Base T connections verify that the network cabling complies with the IEEE 802 3ab standard the cable should be installed according to the ANSI TIA EIA 568 A 5 specifications Cable testing should comply with the stated limitations for Attenu a...

Страница 51: ...d displays the port status for Spanning Tree Also check the Port Status screen 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 Forsoftware troubleshootingtips see the chapter Troubleshooting in the Managemen...

Страница 52: ...ke advantage of these proactive networking features HP TopTools for Hubs Switches an SNMP based network management tool that is included with your switch A graphicalwebbrowser interface thatyoucanuse to manage your switch from a PC running a supported web browser for example Microsoft Internet Explorer and Netscape Communicator A full featured easy to use console interface that you can access by c...

Страница 53: ...st passes if the Fault and Self 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 blinking 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 ...

Страница 54: ... 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 whichisontheDocumentationCD ROMthatcame with your switch These tests can also b...

Страница 55: ...ory default settings for a reason other than configuration problems 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 Managemen...

Страница 56: ... on how to use these services to get technical support The HP Procurve web site http www hp com go hpprocurve also provides up to date support information Additionally your HP authorized network reseller can provide you with assis tance 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 p...

Страница 57: ... 0 cm 17 32 in Depth 32 5 cm 12 8 in Height 4 4 cm 1 7 in Weight 4 44 kg 9 78 lbs AC voltage 100 240 volts Maximum current 1 5 A Frequency range 50 60 Hz 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 4 6 Km 15 000 ft 4 6 Km 15 000 ft ...

Страница 58: ...J 45 twisted pair ports are compatible with the following standards IEEE 802 3ab 1000Base T IEEE 802 3u 100Base TX IEEE 802 3 10Base T The1000MbpsLCfiber opticportsontheGigabit SX andGigabit LXmini GBIC transceivers are compatible with the IEEE 802 3z Gigabit SX and Gigabit LX standards Safety Complies with EN60950 IEC 950 CSA 22 2 No 950 UL 1950 Lasers The Gigabit SX LC mini GBIC and the Gigabit ...

Страница 59: ...0Base T Cable Requirements The Category 5 networking cables that work for 100Base TX connections should also work for 1000Base T as long as all four pairs are connected But for the most robust connections you should use cabling that complies with the Category 5E specifications as described in Addendum 5 to the TIA 568 A standard ANSI TIA EIA 568 A 5 10 Mbps Operation Category 3 4 or 5 100 ohm unsh...

Страница 60: ...ng cable and they must also comply with the cabling standards Fiber Optic 1000Base SX 62 5 125 µm or 50 125 µm core cladding diameter graded index multimode fiber optic cables complying with the ITU T G 651 and ISO IEC 793 2 Type A1b or A1a respec tively fitted with LC connectors 1000Base LX single mode fiber optic cables complying with the ITU T G 652 and ISO IEC 793 2 Type B1 standards fitted wi...

Страница 61: ...ting device and the multimode network cable to provide the transmission conditioning If you experience a high number of transmission errors on the Gigabit LX ports usually CRC or FCS errors you may need to install one of these patch cords between the Gigabit LX port in your switch and your multimode fiber optic network cabling and between the Gigabit LX transmission device and the network cabling ...

Страница 62: ...chase a patch cord that has LC connectors on the end that connects to the Gigabit LX mini GBIC and has multimode fibers that match the characteristics of the multimode fiber in your network Recommended Patch Cords Hewlett Packard maintains a list of recommended Mode Conditioning Patch Cords that have been tested and verified to operate correctly with the HP Procurve Gigabit LX Transceiver and HP P...

Страница 63: ...ates as an MDI X port In all cases you can use standard straight through cables or crossover cables If you happen to use a correctly wired crossover cable though the switch will still be able to automatically detect the MDI MDI X operation and link correctly to the connected device N ot e Using Fixed Configurations If the port configuration is changed to any of the fixed configurations though for ...

Страница 64: ...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 stan dard For 1000 Mbps connections 100 ohm Category 5E or better cabling is recommended ...

Страница 65: ...ration for example 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 N ot 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 i...

Страница 66: ... 100 Mbps Full Duplex 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 N ot 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 thi...

Страница 67: ...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 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 ope...

Страница 68: ......

Страница 69: ...to hazardous transient volt ages such aslightning or disturbancesin the electrical utilities power grid Handle exposed metal components ofthe networkwith caution Servicing There are no user serviceable parts inside these products Any servicing adjustment maintenance or repair mustbe performed only by service trained personnel These products do not have a power switch they are powered on when the p...

Страница 70: ...tre soumis à des surtensions 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 appare...

Страница 71: ...ungen aus gesetzt 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 Diese...

Страница 72: ...i fra loro i cavi LAN 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 effe...

Страница 73: ... modo seguro Es posible 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 manten...

Страница 74: ...C 6 Safety and EMC Regulatory Statements Safety Information Japan Safety and EMC Regulatory Statements Safety Information Japan ...

Страница 75: ...C 7 Safety and EMC Regulatory Statements Safety Information China Safety and EMC Regulatory Statements Safety Information China ...

Страница 76: ...ment is operated in 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...

Страница 77: ...C 9 Safety and EMC Regulatory Statements EMC Regulatory Statements Safety and EMC Regulatory Statements Korea Taiwan ...

Страница 78: ...1992 A1 A2 A3 A4 A11 IEC 950 1991 A1 A2 A3 A4 EN60825 1 1994 A11 1996 IEC 825 1 1993 Class 1 EMC EN 55022 1998 CISPR 22 1997 Class A EN55024 1998 CISPR 24 1997 EN 61000 3 2 2000 IEC 61000 3 2 2000 Harmonics EN 61000 3 3 1995 IEC 61000 3 3 1994 Flicker Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 73 23 EEC and the EMC Directive 89 336 EE...

Страница 79: ... Setup screen 3 2 basic troubleshooting tips 4 1 blinking LEDs error indications 4 4 Bootp automatic switch configuration 3 2 for in band access 2 17 buttons Clear button 1 5 Port LED View select button 1 4 Reset button 1 5 C cabinet mounting the switch in 2 10 cables 1000Base LH connections 2 5 fiber optic cable specifications B 2 1000Base LX connections 2 5 fiber optic cable specifications B 2 1...

Страница 80: ...ch Setup screen 3 2 Telnet access 3 5 terminal configuration 2 17 console port location on switch 1 2 cross over cable pin out B 8 D deleting passwords 1 5 description back of switch 1 6 front of switch 1 2 LEDs 1 3 switch 1 1 desktop switch sample topology 2 19 DHCP automatic switch configuration 3 2 for in band access 2 17 diagnostic tests 4 9 checking the console messages 4 9 checking the LEDs ...

Страница 81: ... address configuring 3 3 L LEDs Act 1 3 1 4 behavior during self test 2 9 blinking definition 1 4 checking during troubleshooting 4 9 descriptions of 1 3 dual personality ports 1 4 error indications 4 4 Fan Status 1 4 Fault 1 3 behavior during self test 2 9 showing error conditions 4 4 FDx 1 3 1 4 Link 1 3 location on switch 1 2 on switch 1 3 port description 1 3 Port LED View select indicators 1 ...

Страница 82: ... 4 passwords deleting 1 5 physical specifications switch A 1 Ping test 4 10 pin outs twisted pair cables B 5 port configuration checking when troubleshooting 4 3 Port LED View indicator LEDs 1 4 select button 1 4 selecting the display 1 4 port LEDs description 1 3 Link 1 3 normal operation 2 9 T and M 1 4 ports 10 100Base TX location on switch 1 2 connecting to 2 16 console 2 17 HP Auto MDIX featu...

Страница 83: ...installation 2 8 Switch Setup screen 3 2 configuring a subnet mask 3 3 configuring an IP address 3 3 field descriptions 3 3 T Telnet access to the console 3 5 terminal configuration 2 17 testing checking the console messages 4 9 checking the LEDs 4 9 diagnostic tests 4 9 end to end communications 4 10 link test 4 10 Ping test 4 10 switch operation 4 9 switch to device communications 4 10 twisted p...

Страница 84: ...6 Index Index twisted pair ports HP Auto MDIX feature B 5 V VT 100 terminal serial cable connection for 2 18 W wall mounting switch on 2 13 wiring rules for twisted pair cables B 5 ...

Страница 85: ......

Страница 86: ... notice Copyright Hewlett Packard Company 2002 All right reserved Reproduction adaptation or translation without prior written permission is prohibited except as allowed under the copyright laws Product of Taiwan October 2002 Manual Part Number J4899 90001 J4899 90001 ...

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