L’information de Sécurité Importante 35 This unit operates under SELV (Safety Extra Low Voltage) conditionsaccording to IEC 950. The conditions are only maintained if theequipment to which it is connected also operates under SELVconditions. France and Peru only:This unit cannot be powered from IT† supplies. If your supplies are ofIT type, this unit must be powered by 230V (2P+T) via an isolationtransformer ratio 1:1, with the secondary connection point labelledNeutral, connected directly to earth (ground).†Impédance à la terre.WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannotbe used as standard traditional telephone sockets, or to connect the unit to atraditional PBX or public telephone network. Only connect RJ-45 dataconnectors, network telephony systems, or network telephones to thesesockets.Either shielded or unshielded data cables with shielded or unshieldedjacks can be connected to these data sockets.WARNING: When an Expansion Module is not installed ensure theblanking panel is fitted by tightening all screws with a suitable tool.L’information deSécurité Importante L'installation et la dépose de ce groupe doivent être confiés à unpersonnel qualifié. Si vous entassez l'unité Switch avec les unités SuperStack 3 Hub,l'unité Switch 4300 doit être installée en dessous des unités Hub plusétroites. Vous devez mettre l’appareil à la terre (à la masse) ce groupe. Brancher l’unité à une source de courant mise à la terre pour assurer laconformité aux normes de sécurité.17100ua.bk Page 35 Monday, March 12, 2001 11:18 AM

Conventions

Summary of Hardware Features

Switch 4300 — Front View Detail

Power Socket

Default Settings

Package Contents

Methods of Managing a Switch

managing a switch

Choosing a Browser

Setting Up Through the Console Port

IP Addresses

Logging in as a Default User

important safety information

L'information de Sécurité Importante

Wichtige Sicherheitsinforma-tionen

Null Modem Cable

RJ-45 Pin Assignments

returning products for repair

Online Technical Services

Returning Products for Repair

3Com SuperStack 3 Switch 4300 Getting Started Manual

handling the module

t echnical s pecifications

fcc statement

documentation feedback

SuperStack 3 4300

key benefits

specifications