HP J3188A manual Power Precautions, Temperature might exceed 45C 113F, Settings to configure

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Safety and Regulatory Statements

Safety and Regulatory Statements

Power Precautions

N o t e

If your installation requires a different power cord than the one supplied with

 

the hub, 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 hub.

 

Do not install the hub in an environment where the operating ambient

 

 

temperature might exceed 45°C (113°F).

 

Make sure the air flow around the sides of the hub is not restricted.

 

Power Precautions

 

Follow these precautions when unplugging and plugging in power to the hub

 

as well as adding or removing modules.

 

 

N o t e

The hub does not have a power switch; it is powered on when the power cord

 

is plugged in. The hub’s power supply automatically adjusts to any AC power

 

source between 100-127 volts and 200-240 volts. There are no voltage range

 

settings to configure.

 

When installing the hub, note that the AC outlet must be installed near the

 

equipment and should be easily accessible.

 

 

G-2

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Contents HP J3188A Page Installation and Reference Guide HP 10Base-T Hub-16M J3188APublication Number Back of the Hub HP 10Base-T Hub-16M J3188AFront of the Hub IiiFeatures Network ConnectionsContents Cables and Connectors Security Information ViiPage Installing the Hub Connect the external transceiver Installing and Configuring Your HubVerify included parts Verify the hub operates correctlyCord connected directly to the hub for proper operation TimeLED PatternMount the hub Rack or Cabinet MountingTable Mounting Connect the hub to your network Twisted-Pair Cascade Connections Connecting Devices to the HubConnecting Hubs Together Installing ThinLAN ConnectionsOhm terminator Connecting the Hub-16M to a Fiber-Optic Backbone Interpreting LED StatusInterpreting Hub Status LEDs Interpreting Port Status LEDs Following table provides LED port informationPage Troubleshooting Troubleshooting ApproachesProblem Solution Using a Checklist to Diagnose the HubTroubleshooting Using a Checklist to Diagnose the Hub LED Operation Power Coll Troubleshooting LED OperationDiagnostic Tips Hub will automatically recover afterClearing a Password for the Ascii Console Hub Maintenance TasksTesting the Hub Only Obtaining Firmware Enhancements Troubleshooting Hub Maintenance TasksRunning Connectivity Tests Setting up the Ascii Console Managing the HubManaging the Hub Directly, Using a Serial Cable and a TerminalRemotely, Using Telnet Remotely, Using a Modem and a Terminal Starting the ConsoleExample HE ST This displays help for the Status command Console Command ReferenceCommands are described in the rest of the chapter Syntax Conventions on Help ScreenBAckup Default DescriptionCounter Name Definition Valid Range CDpstatusCOunters RangeDIsconnect IPconfigWhen to Use IPconfig Using IP Configuring for Network ManagementUsing Novell NetWare IPX Following table explains the IP parametersParameter Default Value Definition MAnagers SHowTo end your editing CommandManager Address IP or IPX Receive Alarms? NEighbor Displays the other devices that are using CDP protocolMEssageinterval Table entry with ID 1 would now be a blank linePIng PAsswordClear a password Community nameRObustness REsetPOrt port ON/OFF Security Configuration Parameter Definitions SEcure portSHowCLearManaging the Hub Eavesdrop Prevention, must be set to on Configuring Security on a Single PortConfiguring Security on All Twisted-Pair Ports Address Selection Authorized Showing the Security Configuration Clearing Security Violation IndicatorsSPeed new speed STatusStatus Information What It Means 16M will respond with the correct packet Network links, see the , TroubleshootingTEstlink To sendPage Following table shows PC connections to the RS-232 port Cables and ConnectorsRecommended Cables Cable Function Cable Type HP Product Number Cables and ConnectorsFollowing table shows network connections to the hub Pins 3 and 6 must be a twisted pair Twisted-Pair Cable/Connector Pin-OutsPins 1 and 2 must be a twisted pair Twisted-Pair Cable for Hub-to-Computer Network ConnectionCable pin-out described below RS-232 Connector and Cable Pin-OutsInstaller for assistance with your cabling requirements Minimum pin-out will function correctlyRS-232 Modem Cable SignalMinimum Cable Pinout for Ascii Console Connection Hub End MDI-X Twisted-Pair Cable Pin AssignmentsTwisted-Pair Straight-Through Cable Electrical SpecificationsPhysical EnvironmentalElectromagnetic ConnectorsSpecifications Megahertz XJ2288 Pcmcia card modem Modem ConfigurationUS Robotics Courier V.FC/V.34 Supra FAX Practical Peripherals PM288MT IIIntel 14.4EX Network Addressing Communication Between the Hub Network Management StationIPX Addressing Notes IPX Addressing for Novell NetWareIP Addresses for IP and Non-IP Networks Globally Assigned IP Network AddressesCompany Name/Address Device IP ConfigurationCountry Using Bootp Bootp ProcessBootp Table File Entries Definitions of the table entry fieldsPage Backup Links How Backup Links WorkAdditional Notes Backup LinksLimitations Hub to a Switch Examples of Backup LinksHow the Backup Function Works Hub to a ServerT e G g e s t i o n Hub can monitor only one linkConfiguring a Backup Link Configuration/Installation SequenceIdentifying the Backup Link Indications of Backup Link ActivationReactivating the Primary Link Page Security Information Understanding Network SecurityAuthorized MAC address How Intruder Prevention WorksHow Eavesdrop Prevention Works Security InformationAssigning the Authorized MAC address Setting Inbound Security with Intruder Prevention Auto Port Disable Send AlarmSetting Outbound Security with Eavesdrop Prevention Security Information Page Safety and Regulatory Statements Mounting PrecautionsSettings to configure Power PrecautionsTemperature might exceed 45C 113F Equipment and should be easily accessibleSafety Information GroundingInformations concernant la sécurité Tible de causer des dommages à léquipementHinweise zur Sicherheit Considerazioni sulla sicurezza Consideraciones sobre seguridad Safety Information Japanese European Community Regulatory StatementsFCC Class a Statement for U.S.A. Only CanadaDeclaration of Conformity Index IndexDiagnosing with the LEDs … 2-2 diagnostic tests Late collision … 3-13 mounting the hub … LED description … Verifying hub operation … Page J3188-90001