H3C WX2540E Manual de usuario

H3C WX2540E Access Controller

Installation Guide

New H3C Technologies Co., Ltd.

http:// www.h3c.com.hk

Document version: 6

102-20190430

No part of this manual may be reproduced or transmitted in any form or by any means without prior

written consent of New H3C Technologies Co., Ltd.

Trademarks

Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned

in this document are the property of their respective owners.

Notice

The information in this document is subject to change without notice. All contents in this document,

including statements, information, and recommendations, are believed to be accurate, but they are

presented without warranty of any kind, express or implied. H3C shall not be liable for technical or

editorial errors or omissions contained herein.

Environmental protection

This product has been designed to comply with the environmental protection requirements. The storage,

use, and disposal of this product must meet the applicable national laws and regulations.

Preface

The H3C WX2540E Access Controller Installation Guide describes preparing for installation, installing

the access controller, troubleshooting, and hardware management and maintenance of the WX2540E

access controller.

This preface includes:

•Audience

•Conventions

•Documentation feedback

Audience

This documentation is intended for:

•Network planners

•Field technical support and servicing engineers

•Network administrators working with the WX2540E

Conventions

This section describes the conventions used in this documentation set.

GUI conventions

Convention Descri

tion

Boldface Window names, button names, field names, and menu items are in Boldface. For

example, the New User window appears; click OK.

> Multi-level menus are separated by angle brackets. For example, File > Create > Folder.

Convention Descri

tion

< > Button names are inside angle brackets. For example, click <OK>.

[ ] Window names, menu items, data table and field names are inside square brackets. For

example, pop up the [New User] window.

/ Multi-level menus are separated by forward slashes. For example, [File/Create/Folder].

Symbols

Convention Descri

tion

WARNING

An alert that calls attention to important information that if not understood or followed can

result in personal injury.

CAUTION

An alert that calls attention to important information that if not understood or followed can

result in data loss, data corruption, or damage to hardware or software.

IMPORTANT An alert that calls attention to essential information.

Convention Descri

tion

NOTE An alert that contains additional or supplementary information.

Documentation feedback

You can e-mail your comments about product documentation to info@h3c.com.

We appreciate your comments.

Contents

Preparing for installation ············································································································································· 1

Safety recommendations ··················································································································································1

General safety recommendations···························································································································1

Electrical safety·························································································································································1

Laser safety································································································································································2

Examining the installation site ·········································································································································2

Temperature and humidity·······································································································································2

Cleanliness ································································································································································2

Cooling······································································································································································3

ESD prevention ·························································································································································3

EMI·············································································································································································3

Lightning protection··················································································································································4

Installation accessories ·····················································································································································4

Pre-installation checklist ····················································································································································4

Preparing for installation

Safety recommendations

To avoid any equipment damage or bodily injury, read the following safety recommendations before

installation. Note that the recommendations do not cover every possible hazardous condition.

General safety recommendations

•Do not place the device on an unstable case or desk. The device might be severely damaged in

case of a fall.

•Make sure the ground is dry and flat and anti-slip measures are in place.

•Keep the chassis and installation tools away from walk areas.

•Keep the chassis clean and dust-free.

•Do not place the device near water or in a damp environment. Prevent water or moisture from

entering the device chassis.

•Ensure good ventilation of the equipment room and keep the air inlet and outlet vents of the device

free of obstruction.

•Make sure the device operates in the voltage range as required.

•Use a screwdriver to fasten screws.

•To prevent condensation, perform the following tasks:

{Unpack the device a minimum of half an hour after you move the device from a location below

0°C (32°F) to the equipment room.

{Power on the device a minimum of 2 hours after you move the device from a location below 0°C

(32°F) to the equipment room.

Electrical safety

•Carefully examine your work area for possible hazards, such as moist floors, ungrounded power

extension cables, or missing safety grounds.

•Locate the emergency power-off switch in the room before installation. Shut off the power

immediately if an accident occurs.

•Unplug all the external cables (including power cables) before moving the chassis.

•Do not work alone when the device has power.

•Always check that the power has been disconnected.

Laser safety

WARNING!

Do not stare into any fiber port when the device is powered on. The laser light emitted from

the fiber port might hurt your eyes.

•Before you disconnect a fiber connector, execute the shutdown command in interface view to

disable the optical source.

•After you remove an optical fiber from the connector, install the dust cover on the connector to avoid

connector damage.

Examining the installation site

The device can only be used indoors. To ensure normal operation and a long lifespan for your device,

the installation site must meet the requirements in this section.

Temperature and humidity

Maintain the temperature and humidity in the equipment room at acceptable levels.

•Lasting high relative humidity can cause poor insulation, electricity creepage, mechanical property

change of materials, and metal corrosion.

•Lasting low relative humidity can cause washer contraction and ESD and cause problems including

loose screws and circuit failure.

•High temperature can accelerate the aging of insulation materials and significantly lower the

reliability and lifespan of the switch.

To ensure correct operation of the device, the equipment room must meet the temperature and humidity

requirements listed in Table 1.

Table 1 Temperature/humidity requirements in the equipment room

Tem

erature Relative humidit

0°C to 40°C (32°F to 104°F) 5% to 95%, noncondensing

Cleanliness

Dust buildup on the chassis can result in electrostatic adsorption, which causes poor contact of metal

components and contact points, especially when indoor relative humidity is low. In the worst case,

electrostatic adsorption can cause communication failure.

Table 2 Dust concentration limit in the equipment room

Substance Concentration limit (

articles/m3)

Dust particles ≤3 x 104

(No visible dust on desk in three days)

NOTE:

Dust particle diameter ≥5 µm

The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion and

premature aging of components, as shown in Table 3.

Table 3 Harmful gas limits in the equipment room

Gas Max. (m

/m3)

SO20.2

H2S 0.006

NH30.05

Cl20.01

Cooling

•Leave a minimum of 10 cm (3.94 in) of clearance around the device.

•A good ventilation system is available at the installation site.

ESD prevention

The device might be damaged by the following Electrostatic discharge (ESD) sources:

•Outdoor environment—For example, high-voltage power line and lightning.

•Indoor environment—For example, floor carpet.

•Device internal system.

To prevent ESD damage, follow these guidelines:

•Ground the device reliably.

•Take dust-proof measures for the equipment room. For more information, see "Cleanliness."

•Maintain the humidity and temperature at acceptable levels. For more information, see

"Temperature and humidity."

•Wear an ESD suit and an ESD wrist strap, wear ESD gloves, and remove any electrically conducting

objects such as watch or jewelry before handling the device.

EMI

All electromagnetic interference (EMI) sources, from outside or inside of the switch and application

system, adversely affect the switch in the following ways:

•A conduction pattern of capacitance coupling.

•Inductance coupling.

•Electromagnetic wave radiation.

•Common impedance (including the grounding system) coupling.

To prevent EMI, perform the following tasks:

•If AC power is used, use a single-phase three-wire power receptacle with protection earth (PE) to

filter interference from the power grid.

•Keep the switch far away from radio transmitting stations, radar stations, and high-frequency

devices.

•Use electromagnetic shielding, for example, shielded interface cables, when necessary.

Lightning protection

To protect the device from lightning, follow these guidelines:

•Make sure the chassis is reliably grounded by using the grounding cable.

•Make sure the grounding terminal of the AC power receptacle is reliably grounded.

•Install a lightning protector at the power input end.

Installation accessories

Power cable

(provided)

Power adapter

(provided)

Rubber feet

(provided)

Grounding

terminal

(provided)

Console cable

(provided)

Grounding

cable

(user-supplied)

Pre-installation checklist

Table 4 Pre-installation checklist

Item Re

uirements Result

Installation

site

Ventilation

•There is a minimum of 10 cm (3.9 in) of clearance

around the device.

•A ventilation system is available at the installation site.

Temperature 0°C to 40°C (32°F to 104°F)

Relative humidity 5% to 95% (noncondensing)

Cleanness

•Dust concentration ≤3 × 104particles/m3

•No dust on desk within three days

Item Re

uirements Result

ESD prevention

•The device is reliably grounded.

•The equipment room is dust-proof.

•The humidity and temperature are at acceptable levels.

EMI prevention

•Take effective measures to protect the power system

from the power grid system.

•Separate the protection ground of the device from the

grounding device or lightning protection grounding

device as far as possible.

•Keep the device far away from radio stations and radar

and high-frequency devices working in high current.

•Use electromagnetic shielding when necessary.

Lightning

protection

•The chassis is reliably grounded.

•The grounding terminal of the AC power receptacle is

reliably grounded.

Electricity safety

•Equip a UPS.

•In case of emergency during operation, switch off the

external power switch.

Safety

precautions The device is far away from any moist area and heat source.

Accessories Accessories provided with the device.

Reference

•Documents shipped with the device.

•Online documents.

Tabla de contenidos

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