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Choosing the Correct Cables

25

For full redundancy, the unit requires two Type 3 Power Modules
combined using a Type 3 Y-Cable (part number 3C16077).

WARNING:

If you are connecting the Switch to a Type 3 Power Module,

read the Safety Information section in the Type 3 Power Module User
Guide.

CAUTION:

The Switch can only use a SuperStack Advanced Redundant

Power System output.

Choosing the
Correct Cables

All of the ports on the Switch are Auto-MDIX, that is they have a
cross-over capability. These ports can automatically detect whether to
operate in MDI or MDIX mode. Therefore you can make a connection to
one of the ports with a straight-through (MDI) or a cross-over cable
(MDIX).

The Auto-MDIX feature only operates when auto-negotiation is enabled.

If auto-negotiation is disabled, all the Switch ports are configured as
MDIX (cross-over). If you want to make a connection to another MDIX
port, you need a

cross-over

cable. Many ports on workstations and

servers are configured as MDI (straight-through). If you want to make a
connection to an MDI port, you need to use a standard

straight-through

cable. See Table 8.

3Com recommends that you use, at least, Category 5 twisted pair cable.
The maximum segment length for this type of cable is 100 m (328 ft.).

Table 8

Cables Required to Connect the Switch to Other Devices If

Auto-negotiation Is Disabled

CAUTION:

If you want to install the Switch using a Category 5E or

Category 6 cable, 3Com recommends that you briefly connect the cable
to a grounded port before connecting to the network equipment. If you

Cross-over Cable

Straight-through Cable

Switch to Switch
(MDIX to MDIX)

✓

✕

Switch to Hub
(MDIX to MDIX)

✓

✕

Switch to PC (NIC)
(MDIX to MDI)

✕

✓

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Содержание 3CR17450-91

Страница 1: ...http www 3com com Part No DUA174509 1AAA01 Published October 2005 SuperStack 3 Switch 3870 Family Getting Started Guide 3CR17450 91 3CR17451 91 ...

Страница 2: ...rogram or documentation contained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com the 3Com logo and SuperStack are registered trademarks of 3Com Corporation Intel and Pentium are registered trademarks of Intel Corporation Microsoft MS DOS Win...

Страница 3: ...Panel 15 Default Settings 16 2 INSTALLING THE SWITCH Package Contents 20 Choosing a Suitable Site 20 Rack Mounting the Switch 21 Montagesatz Anweisungen 22 Placing Units On Top of Each Other 23 Supplying Power to the Switch 23 Checking for Correct Operation of LEDs 24 Connecting a Redundant Power Supply 24 Choosing the Correct Cables 25 Using SFP Transceivers 26 Approved SFP Transceivers 26 Insert...

Страница 4: ...nt 40 CLI Management via the Console Port 40 CLI Management over the Network 41 Setting Up Web Interface Management 42 Prerequisites 42 Web Management Over the Network 42 Setting Up SNMP Management 43 Prerequisite 43 Default Users and Passwords 44 Changing Default Passwords 44 Backing Up and Restoring Configuration Settings 44 Backing Up and Restoring over the Web Interface 45 Backing Up and Resto...

Страница 5: ...eczeniach 69 B PIN OUTS Null Modem Cable 73 PC AT Serial Cable 73 RJ 45 Pin Assignments 74 C TECHNICAL SPECIFICATIONS Switch 3870 24 Port 75 Switch 3870 48 Port 76 D OBTAINING SUPPORT FOR YOUR PRODUCT Register Your Product to Gain Service Benefits 77 Purchase Value Added Services 77 Troubleshoot Online 77 Access Software Downloads 78 Contact Us 78 Telephone Technical Support and Repair 78 INDEX RE...

Страница 6: ......

Страница 7: ...ed information on how to use the Web interface and command line interface to manage the Switch Other documentation relating to the 3Com SuperStack 3 Switch 3870 3Com Network Supervisor a powerful network management tool for small to medium enterprise networks You can download an evaluation copy of 3Com Network Supervisor from www 3com com 3ns A number of other useful applications If the informatio...

Страница 8: ...mple To change your password use the following syntax system password password In this example you must supply a password for password Commands The word command means that you must enter the command exactly as shown and then press Return or Enter Commands appear in bold Example To display port information enter the following command bridge port detail The words enter and type When you see the word...

Страница 9: ...n the CD ROM that accompanies the Switch Management Interface Reference Guide This guide provides detailed information about the Web interface and command line interface that enable you to manage the Switch It is supplied in HTML format on the CD ROM that accompanies the Switch There are other publications you may find useful Documentation accompanying the Expansion Module Documentation accompanyi...

Страница 10: ... on the CD ROM The documentation is accessed using the index htm file The PDF Implementation Guide is stored in the Docs implementation directory of the CD ROM 3Com recommends that you copy the Docs referenceguide directory as a whole to maintain the structure of the files Documentation Comments Your suggestions are very important to us They will help make our documentation more useful to you Plea...

Страница 11: ...nd Four 10 100 1000BASE T 1000BASE X SFP ports The Switch 3870 48 port unit is a mixed media device that consists of 48 10BASE T 100BASE TX 1000BASE T RJ 45 ports Four 10 100 1000BASE T 1000BASE X SFP ports The four highest numbered RJ 45 ports 21 24 on the 24 port Switch 45 48 on the 48 port Switch and the SFP ports are combination ports When an SFP module is inserted it has priority over the RJ ...

Страница 12: ...ernet short wave SX long wave LX and long haul LH70 transceivers in any combination Expansion Module Use to add a high speed 10 Gigabit Ethernet connection Contact your 3Com network supplier for further information Flow Control Supported on all ports Traffic Prioritization Supported IEEE Std 802 1D 1998 Edition Eight traffic queues per port Fast Ethernet and Gigabit Ethernet Ports Auto negotiating...

Страница 13: ...s or to connect the Switch to a traditional PBX or public telephone network Only 10 100 1000BASE T Ports Console Port SuperStack 3 Switch 3870 24 port Stack Master Module Activity Port Status LEDs Power Self Test LED Unit LED 21 22 23 24 Dual Personality 10 100 1000BASE T 1000BASE X SFP Ports Fault LED Module Status LED Module Activity LED Stack Status Stack Master LEDs S S Power Fault P 1 4 3 2 5...

Страница 14: ...nnot function and the ports are fixed as MDIX cross over mode If auto negotiation is disabled on a 1000 Mbps port the speed will drop to the highest available speed By default this is 100 Mbps Dual Personality SFP Ports The 4 dual personality SFP Small Form Factor Pluggable ports support fiber Gigabit Ethernet short wave SX long wave LX and long haul LH70 transceivers in any combination This offer...

Страница 15: ...g A low speed 10 100 Mbps link is present and active Green for one second amber for one second then off until operational POST in operation all LEDs perform a one second lamp test Alternate yellow then green flashing fast A port has failed a loop back test during POST Alternate yellow then green flashing A link is present but the port has been disabled Off No link is present Stacking Status LED Gr...

Страница 16: ... Green The Switch is stacked and the position within the stack is displayed Off The Switch is not stacked Power Self Test LED Green The Switch is powered on and operating normally Green flashing The Switch is either downloading software or is initializing which includes running a Power On Self Test Yellow The Switch is faulty Off The Switch is not receiving power or there is a fault with the power...

Страница 17: ...t against internal power supply failure you can use this socket to connect the Switch to a SuperStack 3 Advanced Redundant Power System See Connecting a Redundant Power Supply on page 24 Stacking Cable Ports You can use these ports to connect the following cables Stacking Cable 3C17462 which enables you to stack together two switches up to three rack units apart Resilient Stacking Cable 3C17463 wh...

Страница 18: ...al Units in the Stack Maximum Modules 48 Port 24 Port 0 8 8 8 8 0 8 0 7 1 8 2 7 0 7 4 6 2 8 4 6 1 7 6 6 0 6 6 Feature Switch 3870 Port Status Enabled Port Speed Auto negotiated Duplex Mode Auto negotiated Flow Control Disabled Broadcast Storm Control Enabled High threshold 3000 broadcast frames per second Notify and filter Low threshold 1500 broadcast frames per second Notify and unfilter Virtual ...

Страница 19: ...by selecting System Control Initialize on the Web interface or by entering system control initialize on the command line interface the following settings are retained to allow you to connect to and manage the Switch IP address Subnet mask Default gateway ...

Страница 20: ...18 CHAPTER 1 INTRODUCING THE SWITCH 3870 ...

Страница 21: ...VERTISSEMENT Consignes de sécurité Avant d installer ou d enlever tout composant de Switch 3870 ou d entamer une procédure de maintenance lisez les informations relatives à la sécurité qui se trouvent dans l Appendice A de ce guide VORSICHT Sicherheitsinformationen Bevor Sie Komponenten aus dem Switch 3870 entfernen oder den Switch 3870 hinzufügen oder Instandhaltungsarbeiten verrichten lesen Sie ...

Страница 22: ...M This Guide Management Quick Reference Guide Release Notes Warranty Flyer Power Cord 2 x securing brackets 8 x screws 4 x rubber feet RJ 45 to DB9 converter cable If any of the above items are damaged or missing contact your 3Com network supplier immediately Choosing a Suitable Site The Switch 3870 is suited for use in an internal wiring closet a network room or telecommunications room where it c...

Страница 23: ...he Switch is situated away from sources of conductive electrical dust for example laser printers The Switch is installed in a clean air conditioned environment The AC supply used by the Switch is separate to that used by units that generate high levels of AC noise for example air conditioning units No more than four Switch units are placed on top of one another if the units are free standing Rack ...

Страница 24: ...se the screws supplied with the securing brackets Damage caused to the unit by using incorrect screws invalidates your warranty 4 Repeat the two previous steps for the other side of the unit 5 Insert the unit into the 19 inch rack and secure with suitable screws not provided Ensure that ventilation holes are not obstructed 6 Reconnect all cables Montagesatz Anweisungen Der Switch wird mit zwei Hal...

Страница 25: ...en Switch in den 19 Schrank und sichern Sie ihn mit passenden Schrauben nicht mitgeliefert Stellen Sie sicher dass die Ventilationsoeffnungen nicht verdeckt sind 6 Schließen Sie alle Kabel wieder an Placing Units On Top of Each Other If the Switch units are free standing up to four units can be placed one on top of the other If you are mixing a variety of Switch and hub units the smaller units mus...

Страница 26: ...oximately one minute Checking for Correct Operation of LEDs During the Power On Self Test all ports on the Switch are disabled and the LEDs light in a rapid sequence When the POST has completed check the Power LED to make sure that your Switch is operating correctly Table 7 shows possible colors for the LED Table 7 Power LED Colors If there is evidence of a problem see Solving Problems Indicated b...

Страница 27: ...ion is enabled If auto negotiation is disabled all the Switch ports are configured as MDIX cross over If you want to make a connection to another MDIX port you need a cross over cable Many ports on workstations and servers are configured as MDI straight through If you want to make a connection to an MDI port you need to use a standard straight through cable See Table 8 3Com recommends that you use...

Страница 28: ...ing to power off the Switch Approved SFP Transceivers The following list of approved SFP transceivers is correct at the time of publication 3CSFP91 SFP SX 3CSFP92 SFP LX 3CSFP97 SFP LH70 To access the latest list of approved SFP transceivers for the Switch on the 3Com Web site enter this URL into your internet browser www 3com com Inserting an SFP Transceiver To be recognized as valid the SFP tran...

Страница 29: ... visible Ensure the wire release lever is closed in the upright position 2 Gently slide the transceiver into the SFP port until it clicks If the transceiver does not click into place remove it turn it over and re insert 3 Remove the plastic protective cover if fitted CAUTION The dual personality ports on the Switch 3870 enable you to activate an RJ 45 port or an SFP port or a mixture of both for e...

Страница 30: ...rectly Refer to LEDs on page 13 for more information Removing an SFP Transceiver To remove an SFP transceiver it is not necessary to power off your Switch 1 Disconnect the cable from the transceiver 2 Move the wire release lever downwards until it is pointing toward you 3 Pull the wire release lever toward you to release the catch mechanism the transceiver will then easily slide out Product label ...

Страница 31: ...u to improve the efficiency of the Switch and therefore the overall performance of your network This chapter explains the initial set up of the Switch and the different methods of accessing the management software to manage the Switch It covers the following topics Overview of Management Setup Manually Configuring IP Information Viewing Automatically Configured IP Information Methods of Managing a...

Страница 32: ...and Management Flow Diagram Plug and Play Setup Initial IP Information Setup Feature Management Power on the Switch IP Information is automatically configured See page 31 Do you want to manually configure the IP information How do you want to manage your Switch See page 39 SNMP See page 43 Command Line Interface Connect via the console port See page 40 Web Interface Connect over the network via Te...

Страница 33: ...r Your DHCP server does not allow you to allocate static IP addresses Static IP addresses are necessary to ensure that the Switch is always allocated the same IP information For most installations 3Com recommends that you configure the Switch IP information manually This makes management simpler and more reliable as it is not dependent on a DHCP server and eliminates the risk of the IP address cha...

Страница 34: ...atically reconfigure itself with an appropriate IP address instead of you having to manually reconfigure the Switch If you use the automatic IP configuration method you need to discover the automatically allocated IP information before you can begin management Work through the Viewing Automatically Configured IP Information section on page 36 Preparing for Management Once your Switch s initial set...

Страница 35: ...h is offline that is before you connect the Switch to a network or whilst the Switch is online that is connected to a network Prerequisites A workstation with terminal emulation software installed such as Microsoft HyperTerminal This software allows you to communicate with the Switch via the console port directly Documentation supplied with the terminal emulation software A suitable cable An RJ 45...

Страница 36: ...tware and configure the COM port settings to which you have connected the cable The settings should be set to match the default settings for the Switch which are 19 200 baud 8 data bits No parity 1 stop bit No hardware flow control Refer to the documentation that accompanies the terminal emulation software for more information Setting Up the Switch with IP Information You are now ready to manually...

Страница 37: ... screen displays a summary of the information entered If using the gettingStarted command you will then be prompted to enter system information or to change passwords and then given the option to carry out advanced configuration The initial setup of your Switch is now complete and you can now set up your chosen management method See Methods of Managing a Switch on page 39 If you do not intend to u...

Страница 38: ...oad from www 3com com 3ns 1 Download the evaluation copy of 3Com Network Supervisor from www 3com com 3ns and then install it on a workstation that is connected to the network 2 Connect your Switch to the network 3 Power on the Switch and wait for three minutes 4 Launch 3Com Network Supervisor and run the Auto discovery wizard 3Com Network Supervisor will discover the new Switch automatically and ...

Страница 39: ...ct the workstation to the console port using an RJ 45 to DB9 converter cable and a standard null modem cable as shown in Figure 9 Figure 9 Connecting a Workstation to the Switch Via the Console Port To connect the cable a Insert the RJ 45 end of the RJ 45 to DB9 converter cable into the console port b Connect the null modem cable to the DB9 end of the converter cable c Connect the other end of the...

Страница 40: ...the login and password prompts enter admin as your user name and press Return at the password prompt If you have logged on correctly the top level menu of the command line interface is displayed as shown in the example in Figure 10 Figure 10 Example Top level Command Line Interface Menu 3 At the Select menu option prompt enter the protocol ip interface summary command At the Select IP interfaces p...

Страница 41: ...can use one of the following methods Command line interface management Web interface management SNMP management Command Line Interface Management Each Switch has a command line interface CLI that allows you to manage the Switch from a workstation either locally via a console port connection see Figure 11 or remotely over the network see Figure 12 Figure 11 CLI Management Via the Console Port Figur...

Страница 42: ...pplication which is available for download from the 3Com Web site Figure 14 SNMP Management Over the Network Refer to Setting Up SNMP Management on page 43 Setting Up Command Line Interface Management This section describes how you can set up command line interface management using a local console port connection or over the network CLI Management via the Console Port To manage the Switch using th...

Страница 43: ...e xxx xxx xxx xxx is the IP address of the Switch If you get an error message check that your IP information has been entered correctly and the Switch is powered on 4 To start a Telnet session via the DOS prompt enter the IP address of the Switch that you want to manage in the following format telnet xxx xxx xxx xxx where xxx xxx xxx xxx is the IP address of the Switch When starting a Telnet sessi...

Страница 44: ...ts in Netscape Navigator 4 76 on Solaris 2 6 start Netscape Navigator and select Edit Preferences Fonts Select the Use document specified fonts including Dynamic Fonts radio button You should also set the font sizes as follows Variable Width Font Size 10 0 Fixed Width Font Size 12 0 This ensures that the text spacing is correct Finally in the Advanced category ensure that Enable JavaScript and Ena...

Страница 45: ...n the Switch are in VLAN 1 You can use the 3Com Network Supervisor application which is available for download from the 3Com Web site You can also use the 3Com Network Director Version 2 0 to manage your Switch via SNMP This optional network management application can be purchased directly from the 3Com Web site If you use either of these network management applications it will automatically load ...

Страница 46: ...ce user modify command on the CLI or The Security Device User Modify operation on the Web interface For more information about default users and passwords refer to the Management Interface Reference Guide on the Switch CD ROM Backing Up and Restoring Configuration Settings You can upload configuration settings to a TFTP server for safekeeping The settings for all units in a stack are contained in ...

Страница 47: ...s Spanning Tree or aggregated links there is a chance that restoring these settings could result in network loops or other problems which may bring down the network to which the Switch is attached If you are not sure that the configuration settings will work properly in the current network environment 3Com advises you to disconnect the Switch from the network and connect it directly to the managem...

Страница 48: ... file to download 4 Click OK and wait for the Switch to download the configuration file The Switch displays a message indicating that the process to restore the configuration file is in progress The TFTP server indicates when the download process has been completed The Switch then resets itself Backing Up and Restoring over the CLI Before initiating any file transfer operation over the network per...

Страница 49: ...ings but only through a indirect connection using the CLI or Web interface as described in the preceding sections The 3Com Network Director version 2 0 can be used to back up and restore device configuration settings directly through the application s SNMP interface This optional network management application can be purchased from the 3Com Web site Before initiating any file transfer operation ov...

Страница 50: ...k Director If you want the view the configuration file in the standard ASCII format used by the Switch itself locate the stack backup file specified at the end of this display stored in the Program Files 3Com Network Director backups directory and open it with any standard text editing tool Restoring Configuration Settings Using SNMP Follow these steps to restore configuration settings using SNMP ...

Страница 51: ...s covered are Solving Problems Indicated by LEDs Solving Hardware Problems Solving Communication Problems Solving Software Upgrade Problems If you experience a problem that is not listed here it may be included in the support section of the Switch Management Interface Reference Guide on the CD ROM that accompanies your Switch For Technical Support information see Appendix D ...

Страница 52: ...he Power Self Test LED does not light Check that the power cable is firmly connected to the Switch and to the supply outlet If the connection is secure and there is still no power you may have a faulty power cord or an internal fault Check the power cord by Testing it in another device Connecting a working power cord to the problem device If this does not solve the problem contact your 3Com networ...

Страница 53: ...t and continues to operate normally even if one or more ports are disabled A link is connected and yet the Port Status LED for the port does not light Check that The Switch and the device at the other end of the link or cable are connected securely The devices at both ends of the link are powered on The quality of cable is satisfactory Auto negotiation settings are the same at both ends Auto negot...

Страница 54: ...table for the specific unit In addition all Summary tables turn red to indicate the fan failure The device mimic will also display red flashing fan icons For further information about RMON refer to Chapter 7 Status Monitoring and Statistics in the Switch Implementation Guide supplied in PDF on the CD ROM that accompanies the Switch If a fan failure warning message is generated 1 Power off the unit...

Страница 55: ... faulty To correct this problem completely remove the SFP and then re insert it Alternatively insert another identical SFP If the problem persists contact 3Com Technical Support Solving Communication Problems If you experience communication problems with the Switch ensure that The Switch IP address has been configured If the Switch is separated from your management application by a router ensure t...

Страница 56: ... you do not have a registered IP address you may be using an identical address to someone else and your network will not operate correctly InterNIC Registration Services is the organization responsible for supplying registered IP addresses To learn more about InterNIC visit their Web site at www internic net If your IP network is internal to your organization only that is you do not access the Int...

Страница 57: ...tion on the Web interface or the system control softwareUpgrade command on the command line interface For details on these options refer to the Management Interface Reference Guide supplied in HTML format on the CD ROM that accompanies your Switch If you have problems with your software upgrade refer to the Problem Solving section in the Management Interface Reference Guide ...

Страница 58: ...56 CHAPTER 4 PROBLEM SOLVING ...

Страница 59: ...u de retirer l appareil VORSICHT Vorsicht enthalten Anweisungen die Sie zu Ihrer eigenen Sicherheit befolgen müssen Alle Anweisungen sind sorgfältig zu befolgen Sie müssen die folgenden Sicherheitsinformationen sorgfältig durchlesen bevor Sie das Gerät installieren oder ausbauen ADVERTENCIA Las advertencias contienen indicaciones que debe respetar por su seguridad personal Siga las indicaciones co...

Страница 60: ... grounded WARNING Connect the unit to an earthed power supply to ensure compliance with safety standards WARNING Power Cord Set This must be approved for the country where it is used U S A and Canada The cord set must be UL approved and CSA certified The minimum specification for the flexible cord is No 18 AWG Type SV or SJ 3 conductor The cord set must have a rated current capacity of at least 10...

Страница 61: ... earth ground Impédance à la terre WARNING U K only If connecting a modem to the console port of the Switch 3870 only use a modem which is suitable for connection to the telecommunications system WARNING RJ 45 ports These are shielded RJ 45 data sockets They cannot be used as standard traditional telephone sockets or to connect the unit to a traditional PBX or public telephone network Only connect...

Страница 62: ...rocedures other than those specified herein may result in hazardous laser emissions L information de Sécurité Importante AVERTISSEMENT L installation et la dépose de ce groupe doivent être confiés à un personnel qualifié AVERTISSEMENT Si vous entassez l unité Switch avec les unités SuperStack 3 Hub l unité de la gamme des Switch 3870 doit être installée en dessous des unités Hub plus étroites AVER...

Страница 63: ... un dispositif à impédance à la terre Si vos alimentations sont du type impédance à la terre ce groupe doit être alimenté par une tension de 230 V 2 P T par le biais d un transformateur d isolement à rapport 1 1 avec un point secondaire de Etats Unis et Canada Le cordon doit avoir reçu l homologation des UL et un certificat de la CSA Le cordon souple doit respecter à titre minimum les spécificatio...

Страница 64: ... données AVERTISSEMENT Quand le module est introduit dans le commutateur il faut visser les deux vis à ailettes de fixation du module avec un outil adapté Conservez la plaque d obturation et les fixations en lieu sûr Si vous retirez le module à tout instant vous devez alors replacer la plaque d obturation AVERTISSEMENT Ports pour fibres optiques sécurité sur le plan optique Ne regardez jamais le l...

Страница 65: ...ß EN60320 IEC320 haben VORSICHT 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 VORSICHT Europe Das Netzkabel muß vom Typ HO3VVF3GO 75 Mindestanforderung sein und die Aufschrift HAR oder BASEC tragen Der Netzstecker muß die Norm CEE 7 7 erfüllen SCHUKO V...

Страница 66: ...n Sie die Blende und die Befestigungselemente an einem sicheren Ort auf Sollten Sie das Module irgendwann ausbauen müssen Sie auch die Blende wieder anbringen VORSICHT Faseroptikanschlüsse Optische Sicherheit Niemals ein Übertragungslaser betrachten während dieses eingeschaltet ist Niemals direkt auf die Faseransnchlüsse und auf die Faserkabelenden schauen während diese eingeschaltet sind VORSICHT...

Страница 67: ...a especificación mínima del cable flexible es Nº 18 AWG Tipo SV o SJ Tres conductores El conjunto de cables debe tener una capacidad de corriente nominal de al menos 10 A El enchufe de conexión debe ser de tipo de toma de tierra con una configuración NEMA 5 15P 15 A 125 V o NEMA 6 15P 15 A 250 V Sólo para el Reino Unido La toma de alimentación debe cumplir la norma BS1363 3 patillas 13 A e instala...

Страница 68: ...ra Impédance à la terre ADVERTENCIA Sólo para el Reino Unido Si conecta un módem al puerto de consola del Switch 3870 utilice sólo un módem que sea adecuado para la conexión con el sistema de telecomunicaciones ADVERTENCIA Puertos RJ 45 Son conectores de datos RJ 45 blindados No pueden utilizarse como tomas de teléfono tradicionales estándar ni para conectar la unidad a una central de conmutación ...

Страница 69: ...A Se si installa lo Switch 3870 in uno stack con unità SuperStack II o SuperStack 3 più strette del modello 3870 posizionare lo Switch 3870 sotto tali unità AVVERTENZA L unità deve disporre di messa a terra AVVERTENZA Per rispettare gli standard di sicurezza è necessario collegare l unità a una fonte di alimentazione dotata di messa a terra AVVERTENZA Set dei cavi di alimentazione Deve essere appr...

Страница 70: ... come Neutro collegato direttamente a terra Impédance à la terre AVVERTENZA Solo Regno Unito Se si collega un modem alla porta Console dello Switch 3870 utilizzare solo un modem idoneo per il collegamento con il sistema di telecomunicazioni AVVERTENZA Le porte RJ 45 sono prese dati RJ 45 schermate Non è pertanto possibile utilizzarle come normali prese telefoniche né per collegare l unità a un PBX...

Страница 71: ...o uno strumento ottico di ingrandimento quando è acceso Non guardare mai direttamente la porta TX a fibre ottiche e le estremità del cavo a fibre ottiche quando sono accese L esecuzione di procedure o regolazioni non previste dalle istruzioni fornite in questa guida può provocare emissioni laser nocive Ważne Informacje o Zabezpieczeniach OSTRZEŻENIE Instalacja i demontaż urządzenia mogą być wykony...

Страница 72: ...em 230V 2P T z transformatora separującego 1 1 a drugi bolec wtyczki musi być oznaczony jako Neutral i musi być bezpośrednio uziemiony Stany Zjednoczone i Kanada Zestaw przewodów musi posiadać zezwolenie UL oraz certyfikat CSA Minimalna specyfikacja przewodu giętkiego Przewód typu SV lub SJ 3 o średnicy 18 wg specyfikacji AWG Zestaw przewodów musi posiadać pojemność prądu znamionowego przynajmniej...

Страница 73: ...przewody z danymi wraz z osłoniętymi lub nieosłoniętymi wtykami mogą być podłączone do tych gniazd OSTRZEŻENIE Po włożeniu modułu do przełącznika należy dokręcić używając odpowiedniego narzędzia dwie śruby mocujące moduł Płytkę zaślepiającą i łączniki należy przechowywać w bezpiecznym mie jscu W przypadku wyjęcia modułu konieczne jest ponowne założenie płytki zaślepiającej OSTRZEŻENIE Porty światł...

Страница 74: ...72 APPENDIX A SAFETY INFORMATION ...

Страница 75: ... PC Terminal Cable connector 25 pin male female only required if screen always required required for handshake Screen DTR TxD RxD CTS Ground DSR RTS DCD Screen DCD RxD TxD DTR Ground DSR RTS CTS Shell 4 3 2 8 5 6 7 1 Shell 1 2 3 4 5 6 7 8 Switch 3870 Cable connector RJ 45 female PC AT Serial Port Cable connector 9 pin female only required if screen Always required always required required for hand...

Страница 76: ...B 4 Not assigned Bidirectional Data C 5 Not assigned Bidirectional Data C 6 Receive Data Bidirectional Data B 7 Not assigned Bidirectional Data D 8 Not assigned Bidirectional Data D Pin Number 10 100 1000 Ports configured as MDIX 1 Receive Data Bidirectional Data B 2 Receive Data Bidirectional Data B 3 Transmit Data Bidirectional Data A 4 Not assigned Bidirectional Data D 5 Not assigned Bidirectio...

Страница 77: ...o 3Com schedule package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 60950 EN60950 CSA 22 2 No 60950 IEC 60950 IEC825 1 EN60825 1 EMC Emissions CISPRR 22 Class A EN55022 Class A FCC Part 15 Subpart B Class A ICES 003 Class A VCCI Class A AS NZS 3548 Class A EN61000 3 2 EN61000 3 3 Immunity EN 55024 Power Consumption 102 watts m...

Страница 78: ...0068 to 3Com schedule package testing paras 2 1 2 2 2 30 and 2 32 Operational testing paras 2 1 2 2 2 30 and 2 13 Safety Agency Certifications UL 60950 EN60950 CSA 22 2 No 60950 IEC 60950 IEC825 1 EN60825 1 EMC Emissions CISPRR 22 Class A EN55022 Class A FCC Part 15 Subpart B Class A ICES 003 Class A VCCI Class A AS NZS 3548 Class A EN61000 3 2 EN61000 3 3 Immunity EN 55024 Power Consumption 149 w...

Страница 79: ...e 24x7 telephone technical support software upgrades onsite assistance or advance hardware replacement Experienced engineers are available to manage your installation with minimal disruption to your network Expert assessment and implementation services are offered to fill resource gaps and ensure the success of your networking projects More information on 3Com Extended Warranty and Professional Se...

Страница 80: ...s that follow the software version included with your original product In order to access upgrades and related documentation you must first purchase a service contract from 3Com or your reseller Contact Us 3Com offers telephone e mail and internet access to technical support and repair services To access these services for your region use the appropriate telephone number URL or e mail address from...

Страница 81: ...31 616 439 or 03 3507 5984 1800 801 777 0800 446 398 61 2 9937 5083 Philippines P R of China Singapore S Korea Taiwan Thailand 1235 61 266 2602 or 1800 1 888 9469 800 810 3033 800 6161 463 080 333 3308 00801 611 261 001 800 611 2000 You can also obtain support in this region using the following e mail apr_technical_support 3com com Or request a repair authorization number RMA by fax using this num...

Страница 82: ... Local Number Mexico Mexico Monserrat Nicaragua Panama Paraguay Peru Puerto Rico Saba Anquila St Kitts Neives St Lucia St Vincent Suriname Trinidad and Tobago Turks and Caycos Uruguay Montevideo Venezuela Virgin Islands AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 52 55 52 01 00 04 01 800 849CARE 01 800 849 2273 AT T 800 998 2112 AT T ...

Страница 83: ...D default settings 16 users 44 E expansion modules 15 maximum supported by stack 16 F factory defaults 16 fan failure obtaining service 52 H hardware features 10 I installing the Switch 19 choosing a site 20 rack mouting 21 IP addressing registered 54 IP configuration 31 automatic 31 36 manual 31 33 L LEDs 13 logging in as a default user 44 M management preparing for 32 setting up 29 setup overvie...

Страница 84: ...s 73 SFP operation 26 ports 12 transceivers 26 transceivers invalid type 53 Simple Network Management Protocol See SNMP SNMP 43 management setting up 43 SNMP management 40 software upgrading 55 78 specifications Switch 3870 75 system 75 stack size maximum number of expansion modules 16 maximum units 16 stacking 15 stacking cable ports 15 straight through configuration 25 support obtaining service ...

Страница 85: ...into a different outlet so that equipment and receiver are on different branch circuits If necessary the user should consult the dealer or an experienced radio television technician for additional suggestions The user may find the following booklet prepared by the Federal Communications Commission helpful How to Identify and Resolve Radio TV Interference Problems This booklet is available from the...

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