J3188-90001 | HP J3188A manual

Technical information in this document is subject to change without notice.

© Copyright 1997

Hewlett-Packard Company

Printed in Singapore 6/97

Manual Part Number

J3188-90001

J3188-90001

Image 100

HP J3188A manual J3188-90001

Contents

HP J3188A Page Installation and Reference Guide HP 10Base-T Hub-16M J3188A Publication Number HP 10Base-T Hub-16M J3188A Front of the HubBack of the Hub Iii Features Network Connections Contents Cables and Connectors Security Information ViiPage Installing the Hub Installing and Configuring Your Hub Verify included partsConnect the external transceiver Verify the hub operates correctly Cord connected directly to the hub for proper operation Time LED Pattern Mount the hub Rack or Cabinet Mounting Table Mounting Connect the hub to your network Connecting Hubs Together Connecting Devices to the HubTwisted-Pair Cascade Connections Installing ThinLAN Connections Ohm terminator Connecting the Hub-16M to a Fiber-Optic Backbone Interpreting LED Status Interpreting Hub Status LEDs Interpreting Port Status LEDs Following table provides LED port informationPage Troubleshooting Troubleshooting Approaches Troubleshooting Using a Checklist to Diagnose the Hub Using a Checklist to Diagnose the HubProblem Solution LED Operation Troubleshooting LED Operation Diagnostic TipsPower Coll Hub will automatically recover after Testing the Hub Only Hub Maintenance TasksClearing a Password for the Ascii Console Running Connectivity Tests Troubleshooting Hub Maintenance TasksObtaining Firmware Enhancements Setting up the Ascii Console Managing the Hub Remotely, Using Telnet Directly, Using a Serial Cable and a TerminalManaging the Hub Remotely, Using a Modem and a Terminal Starting the Console Console Command Reference Commands are described in the rest of the chapterExample HE ST This displays help for the Status command Syntax Conventions on Help Screen BAckup Default Description CDpstatus COuntersCounter Name Definition Valid Range Range When to Use IPconfig IPconfigDIsconnect Configuring for Network Management Using Novell NetWare IPXUsing IP Following table explains the IP parameters Parameter Default Value Definition MAnagers SHow Manager Address IP or IPX Receive Alarms? CommandTo end your editing Displays the other devices that are using CDP protocol MEssageintervalNEighbor Table entry with ID 1 would now be a blank line PAssword Clear a passwordPIng Community name POrt port ON/OFF REsetRObustness Security Configuration Parameter Definitions SEcure portSHowCLear Managing the Hub Configuring Security on All Twisted-Pair Ports Configuring Security on a Single PortEavesdrop Prevention, must be set to on Address Selection Authorized Showing the Security Configuration Clearing Security Violation Indicators SPeed new speed STatus Status Information What It Means Network links, see the , Troubleshooting TEstlink16M will respond with the correct packet To sendPage Recommended Cables Cables and ConnectorsFollowing table shows PC connections to the RS-232 port Following table shows network connections to the hub Cables and ConnectorsCable Function Cable Type HP Product Number 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 Connection RS-232 Connector and Cable Pin-Outs Installer for assistance with your cabling requirementsCable pin-out described below Minimum pin-out will function correctly Minimum Cable Pinout for Ascii Console Connection SignalRS-232 Modem Cable Twisted-Pair Straight-Through Cable Twisted-Pair Cable Pin AssignmentsHub End MDI-X Specifications PhysicalElectrical Environmental Specifications ConnectorsElectromagnetic US Robotics Courier V.FC/V.34 Modem ConfigurationMegahertz XJ2288 Pcmcia card modem Intel 14.4EX Practical Peripherals PM288MT IISupra FAX Network Addressing Communication Between the Hub Network Management Station IPX Addressing for Novell NetWare IP Addresses for IP and Non-IP NetworksIPX Addressing Notes Globally Assigned IP Network Addresses Country Device IP ConfigurationCompany Name/Address Using Bootp Bootp Process Bootp Table File Entries Definitions of the table entry fieldsPage Backup Links How Backup Links Work Limitations Backup LinksAdditional Notes Examples of Backup Links How the Backup Function WorksHub to a Switch Hub to a Server T e G g e s t i o n Hub can monitor only one link Configuring a Backup Link Configuration/Installation Sequence Identifying the Backup Link Indications of Backup Link Activation Reactivating the Primary Link Page Security Information Understanding Network Security How Intruder Prevention Works How Eavesdrop Prevention WorksAuthorized MAC address Security Information Assigning the Authorized MAC address Setting Inbound Security with Intruder Prevention Auto Port Disable Send Alarm Setting Outbound Security with Eavesdrop Prevention Security Information Page Safety and Regulatory Statements Mounting Precautions Power Precautions Temperature might exceed 45C 113FSettings to configure Equipment and should be easily accessible Safety Information Grounding Informations concernant la sécurité Tible de causer des dommages à léquipement Hinweise zur Sicherheit Considerazioni sulla sicurezza Consideraciones sobre seguridad Safety Information Japanese Regulatory Statements FCC Class a Statement for U.S.A. OnlyEuropean Community Canada Declaration of Conformity Index Index Diagnosing with the LEDs … 2-2 diagnostic tests Late collision … 3-13 mounting the hub … LED description … Verifying hub operation … Page J3188-90001