HP J3188A manual Cables and Connectors

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A Cables and Connectors

Recommended Cables

A-1

Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . A-3 Twisted-Pair Cable for Hub-to-Computer Network Connection . . . . A-3

RS-232Connector and Cable Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . . .A-4Minimum Cable Pinout for ASCII Console Connection . . . . . . . . . . . A-5 RS-232 Modem Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-5 Twisted-Pair Cable Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . A-6

B Specifications

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Electromagnetic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

CModem Configuration

DNetwork Addressing

Communication Between the Hub and Network Management Station

D-1

IPX Addressing for Novell NetWare . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2 IPX Addressing Notes: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-2

IP Addresses for IP and Non-IP Networks . . . . . . . . . . . . . . . . . . . . . D-2 Globally Assigned IP Network Addresses . . . . . . . . . . . . . . . . . . . . . . D-2 Device IP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-3

Using BOOTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4

The BOOTP Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-4

BOOTP Table File Entries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5

E Backup Links

How Backup Links Work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-1 Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-2

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Contents HP J3188A Page Installation and Reference Guide HP 10Base-T Hub-16M J3188APublication Number HP 10Base-T Hub-16M J3188A Front of the HubBack of the Hub IiiFeatures Network ConnectionsContents Cables and Connectors Security Information ViiPage Installing the Hub Installing and Configuring Your Hub Verify included partsConnect the external transceiver 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 Troubleshooting LED Operation Diagnostic TipsPower Coll 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 ConsoleConsole Command Reference Commands are described in the rest of the chapterExample HE ST This displays help for the Status command Syntax Conventions on Help ScreenBAckup Default DescriptionCDpstatus COuntersCounter Name Definition Valid Range RangeDIsconnect IPconfigWhen to Use IPconfig Configuring for Network Management Using Novell NetWare IPXUsing IP Following table explains the IP parametersParameter Default Value Definition MAnagers SHowTo end your editing CommandManager Address IP or IPX Receive Alarms? Displays the other devices that are using CDP protocol MEssageintervalNEighbor Table entry with ID 1 would now be a blank linePAssword Clear a passwordPIng 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 Network links, see the , Troubleshooting TEstlink16M will respond with the correct packet 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 Twisted-Pair Cable/Connector Pin-Outs Pins 1 and 2 must be a twisted pairPins 3 and 6 must be a twisted pair Twisted-Pair Cable for Hub-to-Computer Network ConnectionRS-232 Connector and Cable Pin-Outs Installer for assistance with your cabling requirementsCable pin-out described below 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 Specifications PhysicalElectrical 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 for Novell NetWare IP Addresses for IP and Non-IP NetworksIPX Addressing Notes 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 Examples of Backup Links How the Backup Function WorksHub to a Switch 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 SecurityHow Intruder Prevention Works How Eavesdrop Prevention WorksAuthorized MAC address 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 PrecautionsPower Precautions Temperature might exceed 45C 113FSettings to configure 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 Regulatory Statements FCC Class a Statement for U.S.A. OnlyEuropean Community 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