HP ProCurve 10/100 12 User manual

Printed in Singapore 7/98
Manual Part Number
5967-2280
*5967-2280*
Technical information in this document
is subject to change without notice.
© Copyright Hewlett-Packard Company
1998. All rights reserved. Reproduction,
adaptation, or translation without prior
written permission is prohibited except
as allowed under the copyright laws.
Less Work, More Network
HP Networking
Installation Guide
For world-wide support on all
HP Network Connectivity Products
visit our web site at:
http://www.hp.com/go/network_city
10/100 Hub 12
10/100 Hub 24
HP ProCurve 10/100 Hubs

HP ProCurve 10/100 Hubs
Installation Guide
http://www.hp.com/
g
o/network_city
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Hewlett-Packard Company
8000 Foothills Boulevard, m/s 5552
Roseville, California 95747-5552
http://www.hp.com/go/network_city
© Copyright 1998 Hewlett-Packard Company
All Rights Reserved.
This document contains information which is protected by
copyright. Reproduction, adaptation, or translation without
prior permission is prohibited, except as allowed under the
copyright laws.
Publication Number
5967-2280
July 1998
Applicable Products
HP J3294A 10/100 Hub 12
HP J3295A 10/100 Hub 24
Disclaimer
The information contained in this document is subject to
change without notice.
HEWLETT-PACKARD COMPANY MAKES NO WARRANTY
OF ANY KIND WITH REGARD TO THIS MATERIAL,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not
be liable for errors contained herein or for incidental or
consequential damages in connection with the furnishing,
performance, or use of this material.
Hewlett-Packard assumes no responsibility for the use or
reliability of its software on equipment that is not furnished
by Hewlett-Packard.
Warranty
See the Customer Support/Warranty booklet included with
the product.
A copy of the specific warranty terms applicable to your
Hewlett-Packard products and replacement parts can be
obtained from your HP Sales and Service Office or
authorized dealer.
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iii
Contents
1 Introducing the HP ProCurve 10/100 Hubs
Front of the Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Network Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Port LED Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
LEDs for the 10/100Base-T Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
LED Combinations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Back of the Hubs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2 Installing the Hub
Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Installation Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Installation Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
1. Prepare the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4
2. Verify the Hub Operates Correctly . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
LED Behavior: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5
3. Mount the Hub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Rack or Cabinet Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Wall Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
Horizontal Surface Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8
4. Connect the Hub to a Power Source . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
5. Some Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-9
Sample Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Where to Go From Here . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
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iv
3 Troubleshooting
Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
Hardware Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Testing the Hub by Resetting It . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
A Specifications
B Cables and Connectors
Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . B-1
Twisted-Pair Cable for Hub (MDI-X) to
Computer (MDI) Network Connection . . . . . . . . . . . . . . . . . . . . . . . . B-2
Twisted-Pair Cable for Hub (MDI-X) to
Hub or Hub (MDI-X) Network Connection . . . . . . . . . . . . . . . . . . . . . B-3
Twisted-Pair Cable Pin Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
Twisted-Pair Straight-Through Cable . . . . . . . . . . . . . . . . . . . . . . B-4
Twisted-Pair Cross-Over Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4
C Safety and EMC Regulatory Statements
Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
Informations concernant la sécurité . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2
Hinweise zur Sicherheit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-3
Considerazioni sulla sicurezza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4
Consideraciones sobre seguridad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5
Safety Information (Chinese) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6
Safety Information (Japanese) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7
Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8
Index
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1-1
IntroducingtheHPProCurve
10/100 Hubs
1
Introducing the HP ProCurve 10/100 Hubs
The HP ProCurve J3294A and HP J3295A 10/100 hubs are low-cost multiport,
dual-speed, 10- and 100Mbps repeaters that can be used to build high-
performance workgroup networks. These hubs are completely autosensing
and autonegotiating devices that provide the flexibility of adjusting to
different speed settings. The hubs are always half-duplex. This capability is
present provided that the connecting device is autonegotiation-capable or
already configured to half-duplex, and will autonegotiate with other
autonegotiating or half-duplex devices.
The two hub models are:
Throughout this manual, these hubs will be abbreviated as the HP 10/100 hubs.
The HP 10/100 Hub 12 and Hub 24 have twelve and twenty-four dual-speed,
10/100Base-T ports, respectively.
With these hubs you can build a network infrastructure byconnecting the hubs
to other hubs, switches, or routers, or you can connect computers, printers,
and servers to these hubs to provide dedicated 10- or 100Mbps bandwidth to
those devices.
HP ProCurve J3295A 10/100 Hub 24
HP ProCurve J3294A 10/100 Hub 12
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1-2
Introducing the HP ProCurve 10/100 Hubs
Front of the Hubs
IntroducingtheHPProCurve
10/100 Hubs
This chapter describes your HP 10/100 hubs:
■Front and back of the hubs
■Network Ports
■Port and Hub LEDs
■Features
■Hub operation overview
Front of the Hubs
Power
LED
Fault
LED Port LEDs
Collision
LED
10/100Base-T RJ-45 ports
Reset button Activity LED
MDI/MDI-X
ButtonforPort1
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1-3
Introducing the HP ProCurve 10/100 Hubs
Front of the Hubs
IntroducingtheHPProCurve
10/100 Hubs
Network Ports
The HP 10/100 Network Ports are as follows:
■12 or 24 10/100Base-T RJ-45 ports
■one MDI/MDI-X port (port 1).
All the fixed twisted-pair ports are wired as MDI-X. Therefore, to connect end
nodes or other MDI-type devices to these ports, use “straight-through” twisted-
pair cable; to connect hubs, switches, or other MDI-X-type devices to these
ports, use “crossover” twisted-pair cable. See Appendix B, “Cables and
Connectors” for descriptions of thesecables. If you only have straight-through
cable, you can use port 1 with the MDI button depressed to connect hubs with
switches and other hubs. The MDI button crosses the cable pairs so that the
Transmit and Receive pins on connecting devices exchange signals correctly.
Port LED Types
There are two types of port LEDs:
Link. This LED highlights the port number. When lit, these LEDs indicate the
port has detected another device. If the 100 LED is not lit, then the Link LED
indicates a connection to an attached 10Base-T device.
100. This LED highlights the rectangle LED under the Link LED. When lit,
these LEDs indicate the port is connected to an attached device operating at
100Mbps. The following figure shows an HP 10/100 LEDoperating at 100Mbps.
See the following sections for more LED detail.
Link LED. Indicates
whether the port has
detected an attached
device. Ifthe100LEDisnot
lit, then the device is
operating at 10Mbps
100 LED. Indicates whether
the device connected to this
port was detected to be
100Mbps.
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1-4
Introducing the HP ProCurve 10/100 Hubs
Front of the Hubs
IntroducingtheHPProCurve
10/100 Hubs
LEDs for the 10/100Base-T Hubs
To see what the LEDs for the HP 10/100 hubs do, see the following table. For
a more extended view of the LEDs, see the table under the section “LED
Combinations.”
Hub Status LED State Meaning
Power (Green) On The hub is receiving power.
Off The hub is NOT receiving power.
Fault (Orange) Off Thenormalstate.Indicatesthattherearenofaultconditions
on the hub.
On Thehubisin selftest afterbeingpowered onorreset. If on
foraprolongedtime(afterthreeseconds),thehubhasfailed
its self test.
Slow* Aporthas been partitioned. TheLink LEDofthe partitioned
port also blinks.
Activity (Green) On/Blinking The hub is receiving packets. If it appears assolid, packet
traffic is heavy.
Off The hub is not receiving packets from any attached device.
Collision
(Orange) On/Blinking Thehub has detectedtwo ormorepackets on thehubhave run into each other on the hub, blocking successful. If the
LED is on solid, a heavy collision rate is occurring.
Off No collisions have been detected on the hub.
Link LEDs
Link On The port detects an attached device.
Off The port has not detected another device.
Slow Blink* The port has been autopartitioned due to excessive
collisions.
* The slow blink behavior is a regular pulse once every 1.6 seconds, approximately.
100 LEDs
100Mbps
Indicator LED On The port is operating at 100Mbps.
Off If the Link LED is lit, the port is operating at 10Mbps.
If the Link LED is not lit, no attached device is detected.
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1-5
Introducing the HP ProCurve 10/100 Hubs
Back of the Hubs
IntroducingtheHPProCurve
10/100 Hubs
LED Combinations
The following table shows the kind of activity that occurs in various LED
illumination combinations:
Reset Button
This button is used to reset the hub while it is powered on. This action clears
any temporary error conditions that may have occurred, restarts the hub and
executes the hub self test. A typical instance of where you might use the Reset
button is in the event of a hub malfunction or error condition.
Back of the Hubs
Power Connector
The 10/100 hubs do not have a power switch; they are powered on when
connected to an active AC power source. The hubs automatically adjust to
various voltages (depending on the country) between 100-127 and 200-240
volts and either 50 or 60 Hz. There are no voltage range settings required.
Link LED 100 LED What is Happening
On Off The port is operating at 10Mbps.
On - Slow Blink Off The port isoperatingin 10Mbps mode, buthas
been partitioned due to excessive collisions.
The Fault LED will also blink.
On On The port is operating at 100Mbps.
On - Slow Blink On - Slow Blink Theportisoperatingin100Mbpsmode,buthas
been partitioned due to excessive collisions.
The Fault LED will also blink.
Off Off The port does not detect another device.
Cooling vents - make sure
these are not obstructed for
proper hub operation
AC Power
Connector
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