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Provides important information about current software release, new features, modifications, and known problems.
Lists other guides in the Switch documentation set, such as Configuration Guide and Quick Reference Guide.
Describes the Switch 4500 Family as mixed media devices and summarizes their hardware components.
Details the front panel components of the Switch 4500, including ports, LEDs, and unit information.
Lists the default configuration settings for the Switch 4500 Family, covering IP, port, and management features.
Provides instructions for connecting a -48V DC Redundant Power Supply socket to the Switch 4500 PWR.
Details the steps for powering up the Switch 4500 and checking the correct operation of its LEDs.
Describes how to select and use SFP transceivers for Gigabit Ethernet connectivity on the Switch.
Outlines the different methods for managing the Switch: CLI, SSH, Web interface, and SNMP.
Explains how to manually set IP address, subnet mask, and default gateway for Switch management.
Details how to set up CLI management via local console port or over the network using Telnet.
Guides users on setting up web interface management over an IP network using a supported web browser.
Explains how to interconnect up to eight 3Com Switch 4500 units to create a stack for single management.
Offers guidelines for creating a stack, including supported connections and port configuration.
Provides suggested solutions for problems indicated by the Switch's LEDs, covering PWR and Port LEDs.
Addresses rare hardware failures, such as fan failure warnings and invalid or faulty SFP transceivers.
Helps diagnose communication issues by checking IP addressing, VLAN ID, and default gateway configuration.
Details how to upgrade Switch software using the Command Line Interface (CLI) via telnet or console.
Provides steps to upgrade software, configuration files, and bootrom firmware using TFTP.
Explains how to upgrade the bootrom firmware via TFTP, FTP, or XModem from the boot menu.
Details the pin assignments for 10/100 and 1000BASE-T RJ-45 connections on the Switch.
Provides detailed technical specifications for the Switch 4500 (26 Port), including dimensions and power.
Lists technical specifications for the Switch 4500 PWR (26 Port), including AC/DC power and characteristics.
Explains the importance of product registration for accessing warranty and other service benefits.
Provides information on contacting 3Com for telephone support and repair services.
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General