3Com 3C16987 manual Repeat steps 2 and 3 for the other side of the Switch

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Placing Units On Top of Each Other

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Figure 7 Fitting a bracket for rack mounting

3Insert the two screws and tighten with a suitable screwdriver.

You must use the screws supplied with the mounting brackets. Damage caused to the unit by using incorrect screws invalidates your warranty.

4Repeat steps 2 and 3 for the other side of the Switch.

5Insert the Switch into the 19-inch rack and secure with suitable screws (not provided). Ensure that ventilation holes are not obstructed.

6Connect network cabling.

Placing Units On If the Switch units are free-standing, up to four units can be placed one

Top of Each Other on top of the other. If you are mixing a variety of SuperStack II Switch and Hub units, the smaller units must be positioned at the top.

If you are placing Switch units one on top of the other, you must use the self-adhesive rubber pads supplied. Apply the pads to the underside of each Switch, sticking one in the marked area at each corner. Place the Switch units on top of each other, ensuring that the pads of the upper unit line up with the recesses of the lower unit.

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Contents User Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents PIN-OUTS Support from 3Com Returning Products for Repair Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedCompliance YearComments ProductIntroducing the Switch 3300 SM Summary of Features About SuperStack Switch 3300 SM10BASE-T / 100BASE-TX Ports Switch 3300 SM Front View DetailColor Indicates Port Status LEDs Power/Self Test LEDUnit LEDs Power Socket Switch 3300 SM Rear View DetailUnits on Switch 3300 SM as a ConfigurationNetwork ExamplesUsing the Switch as a collapsed backbone SwitchSwitch Fast Ethernet configuration rules Configuration Rules with Full Duplex Configuration Rules for Gigabit Ethernet Installing the Switch Rack-mounting Fitting a bracket for rack mounting Repeat steps 2 and 3 for the other side of the SwitchTreated as a single manageable unit with one IP address Stacking Units3C16965. Contact your supplier for details You need only one SuperStack II Switch 3300 MM per stack Stack of three units Powered-up and ready for operation Power-upSwitch 3300 SM SequenceCorrect Cables ChoosingPort, you need a cross-overcable. Most of the 10BASE-T Color StateProblem Network. For information on managing the Switch using SwitchManaging GuideSafety Information Information Important SafetyPersonnel only Important Safety Information Sécurité Importante ’information dePersonnel qualifié Plus étroites’information de Sécurité Importante Wichtige Sicherheitsinformat ionen Warnhinweis Faseroptikanschlüsse Optische Sicherheit Appendix a Safety Information Null Modem Cable PIN-OUTSPC-AT Serial Cable Pin to RS-232 25-pinPin Number Signal Function ConnectorsModem Cable RJ45 PinPin Number Signal Function Appendix B PIN-OUTS Technical Specifications Vlan MIB RFC Services ServicesTechnical Support Online Technical408 727 Username anonymousCountry Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Glossary Collision BroadcastEndstation EthernetLine speed See baud Multicast LoopProtocol RepeaterSTP See Spanning Tree Protocol STP Glossary Index Index 3Com Corporation Limited Warranty Included Services Limitation of Liability EMC Statements