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J3188A
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Safety Information Japanese
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J3188A
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Troubleshooting
Specifications
Install
Signal
Password
Default Description
Connecting Devices to the Hub
Maintenance
IPconfig
Problem Solution
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Safety and Regulatory Statements
Safety Information (Japanese)
Safety Information (Japanese)
Statements
Safety and Regulatory
G-8
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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 Hub
Back of the Hub
Iii
Features
Network Connections
Contents
Cables and Connectors
Security Information
Vii
Page
Installing the Hub
Installing and Configuring Your Hub
Verify included parts
Connect 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
Twisted-Pair Cascade Connections
Connecting Devices to the Hub
Connecting Hubs Together
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 information
Page
Troubleshooting
Troubleshooting Approaches
Problem Solution
Using a Checklist to Diagnose the Hub
Troubleshooting Using a Checklist to Diagnose the Hub
LED Operation
Troubleshooting LED Operation
Diagnostic Tips
Power Coll
Hub will automatically recover after
Clearing a Password for the Ascii Console
Hub Maintenance Tasks
Testing the Hub Only
Obtaining Firmware Enhancements
Troubleshooting Hub Maintenance Tasks
Running Connectivity Tests
Setting up the Ascii Console
Managing the Hub
Managing the Hub
Directly, Using a Serial Cable and a Terminal
Remotely, Using Telnet
Remotely, Using a Modem and a Terminal
Starting the Console
Console Command Reference
Commands are described in the rest of the chapter
Example HE ST This displays help for the Status command
Syntax Conventions on Help Screen
BAckup
Default Description
CDpstatus
COunters
Counter Name Definition Valid Range
Range
DIsconnect
IPconfig
When to Use IPconfig
Configuring for Network Management
Using Novell NetWare IPX
Using IP
Following table explains the IP parameters
Parameter Default Value Definition
MAnagers SHow
To end your editing
Command
Manager Address IP or IPX Receive Alarms?
Displays the other devices that are using CDP protocol
MEssageinterval
NEighbor
Table entry with ID 1 would now be a blank line
PAssword
Clear a password
PIng
Community name
RObustness
REset
POrt port ON/OFF
Security Configuration Parameter Definitions
SEcure portSHowCLear
Managing the Hub
Eavesdrop Prevention, must be set to on
Configuring Security on a Single Port
Configuring Security on All Twisted-Pair Ports
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
TEstlink
16M will respond with the correct packet
To send
Page
Following table shows PC connections to the RS-232 port
Cables and Connectors
Recommended Cables
Cable Function Cable Type HP Product Number
Cables and Connectors
Following table shows network connections to the hub
Twisted-Pair Cable/Connector Pin-Outs
Pins 1 and 2 must be a twisted pair
Pins 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 requirements
Cable pin-out described below
Minimum pin-out will function correctly
RS-232 Modem Cable
Signal
Minimum Cable Pinout for Ascii Console Connection
Hub End MDI-X
Twisted-Pair Cable Pin Assignments
Twisted-Pair Straight-Through Cable
Specifications
Physical
Electrical
Environmental
Electromagnetic
Connectors
Specifications
Megahertz XJ2288 Pcmcia card modem
Modem Configuration
US Robotics Courier V.FC/V.34
Supra FAX
Practical Peripherals PM288MT II
Intel 14.4EX
Network Addressing
Communication Between the Hub Network Management Station
IPX Addressing for Novell NetWare
IP Addresses for IP and Non-IP Networks
IPX Addressing Notes
Globally Assigned IP Network Addresses
Company Name/Address
Device IP Configuration
Country
Using Bootp
Bootp Process
Bootp Table File Entries
Definitions of the table entry fields
Page
Backup Links
How Backup Links Work
Additional Notes
Backup Links
Limitations
Examples of Backup Links
How the Backup Function Works
Hub 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 Works
Authorized 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 113F
Settings 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. Only
European 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 …
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J3188-90001
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