HP ProCurve 2124 User manual

hp procurve

switch 2124

installation guide

www.hp.com/go/hpprocurve

HP Procurve

Switch 2124

Installation Guide

Hewlett-Packard Company

8000 Foothills Boulevard, m/s 5552

Roseville, California 95747-5552

http://www.hp.com/go/hpprocurve

This document contains information which is protected by

prior permission is prohibited, except as allowed under the

Publication Number

J4868-90001

June 2001

Applicable Products

HP Procurve Switch 2124 (HP J4868A)

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.

Safety

Before installing and operating this product, please read the

“Installation Precautions” in chapter 2, “Installing the Switch

2124”, and the safety statements in appendix C, “Safety and

EMC Regulatory Statements”.

iii

Contents

1 Introducing the HP Procurve Switch 2124

Front of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Network Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Reset Button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

LED Mode Select Button and Indicator LEDs . . . . . . . . . . . . . . . . . . . . 1-4

Back of the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Switch Operation Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

Address Table Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2 Installing the Switch 2124

Included Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1

Installation Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2

Installation Precautions: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3

1. Prepare the Installation Site . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4

2. Install An Optional Transceiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-5

3. Verify the Switch Operates Correctly . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

4. Mount the Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-8

5. Connect the Switch to a Power Source . . . . . . . . . . . . . . . . . . . . . . 2-12

6. Connect the Network Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Example Network Topologies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

As a Desktop Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14

As a Segment Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Connecting to a Backbone Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

3 Troubleshooting

Basic Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1

Diagnosing with the LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Hardware Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Testing the Switch by Resetting It . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Testing Twisted-Pair Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Testing End-to-End Network Communications . . . . . . . . . . . . . . . . . . 3-6

HP Customer Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6

A Specifications

Physical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Environmental . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Acoustic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1

Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2

B Switch Ports and Network Cables

Switch Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1

Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-2

Twisted-Pair Cable/Connector Pin-Outs . . . . . . . . . . . . . . . . . . . . . . . B-2

Straight-Through Twisted-Pair Cable for

10 Mbps or 100 Mbps Network Connections . . . . . . . . . . . . . . . . . . . . B-4

Crossover Twisted-Pair Cable for

10 Mbps or 100 Mbps Network Connection . . . . . . . . . . . . . . . . . . . . . B-5

C Safety and EMC Regulatory Statements

Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1

EMC Regulatory Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-8

Index

1-1

Introducing the HP Procurve

Switch 2124

Introducing the HP Procurve Switch 2124

The HP Procurve Switch 2124 is a multiport switch that can be used to build

high-performance switched workgroup networks. This switch is a store-and-

forward device that offers low latency for high-speed networking.

Throughout this manual, this switch will be abbreviated as the Switch 2124.

The Switch 2124 has 24 auto-sensing 10/100Base-TX RJ-45 ports, and a slot for

installing an HP 100-FX SC Transceiver (HP J4853A).

You can directly connect end node devices such as computers, printers, and

servers to this switch, providing dedicated bandwidth to those devices. You

can also connect this switch to hubs, other switches, or routers as part of your

network infrastructure.

This chapter describes your HP Switch 2124 including:

■Front and back of the switch

■Features

■Switch operation overview

HP Procurve Switch 2124 (HP J4868A)

1-2

Introducing the HP Procurve Switch 2124

Front of the Switch

Introducing the HP Procurve

Switch 2124

Front of the Switch

Network Ports

■24 auto-sensing 10/100Base-TX RJ-45 ports

All these ports have the “HP Auto-MDIX” feature, which means that you

can use either straight-through or crossover twisted-pair cables to

connect any network devices to the switch.

■One transceiver slot for installing the HP 100-FX SC Transceiver

(HP J4853A)

Reset Button

This button is used to reset the switch while it is powered on. This action

executes the switch self test, and may clear certain error conditions that have

occurred.

Power

LED

Fault

LED

10/100Base-TX RJ-45 ports

LED Mode Select button

and indicator LEDs

Reset button

Slot for

HP 100-FX SC Transceiver

Link and

Mode LEDs

for each

port

All 10/100Base-TX RJ-45 ports have the “HP Auto-MDIX” feature

1-3

Introducing the HP Procurve Switch 2124

Front of the Switch

Introducing the HP Procurve

Switch 2124

LEDs

Table 1-1. Switch LEDs

Switch LEDs State Meaning

Power

(green)

On The switch is receiving power.

Off The switch is NOT receiving power.

Fault

(orange)

Off The normal state; indicates that there are no fault conditions on the switch.

Blinking* An unsupported transceiver has been installed in the transceiver slot. Under this

condition, the Port 25 Link LED will also blink simultaneously.

On On briefly after the switch is powered on or reset, at the beginning of switch self test.

If on for a prolonged time, the switch has a hardware failure, or has failed its self test.

See chapter 3, “Troubleshooting” for more information.

Link

(green –

overlaid with

the port

number)

On Indicates the port is enabled and receiving a link indication from the connected

device.

Off One of these conditions exists:

• no active network cable is connected to the port

• the port is not receiving link beat (RJ-45 ports), or sufficient light (transceiver port)

• for Port 25 (transceiver port), the transceiver has failed

Blinking*

(Port 25 only)

If the Port 25 Link LED is blinking simultaneously with the Fault LED, it indicates that

an unsupported transceiver has been installed in the transceiver slot.

Mode

(green)

Displays network activity information, or whether the port is configured for full-duplex operation, or

100 Mbps operation depending on the mode selected. See “LED Mode Select Button and Indicator

LEDs” on the next page for more information.

LED Mode

Select

indicators

(3 green LEDs)

Act Indicates that the port Mode LEDs are displaying network activity information.

FDx Indicates that the port Mode LEDs are lit for ports that are in Full Duplex Mode.

100 Indicates that the port Mode LEDs are lit for ports that are operating at 100 Mbps.

* The blinking behavior is an on/off cycle once every 1.6 seconds, approximately.

1-4

Introducing the HP Procurve Switch 2124

Front of the Switch

Introducing the HP Procurve

Switch 2124

LED Mode Select Button and Indicator LEDs

To optimize the amount of information that can be displayed for each of the

switch ports without overwhelming you with LEDs, the Switch 2124 uses a

Mode LED for each port. The operation of this LED is controlled by the LED

Mode Select button, and the current setting is indicated by the Mode indicator

LEDs near the button. Press the button to change from one mode to the next.

■If the Activity (Act) indicator LED is lit, the Mode LED for each port

displays activity information for the port — it flickers as network traffic

is received and transmitted through the port.

■If the Full Duplex (FDx) indicator LED is lit, the Mode LEDs light for those

ports that are operating in full duplex.

■If the 100 Mbps (100) indicator LED is lit, the Mode LEDs light for those

ports that are operating at 100 Mbps.

Mode LEDs

(one per port)

LED Mode Select button

and indicator LEDs

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