3Com DUA1698 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 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 SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents PIN-OUTS Page Page About this Guide Icon Description ConventionsConvention Description Documentation RelatedCompliance YearComments ProductIntroducing the Switch 3300 XM Summary of Features About SuperStack Switch 3300 XMSwitch 3300 XM front view Switch 3300 XM Front View DetailColor Indicates Port Status LEDs Power/Self Test LEDUnit LEDs Power Socket Switch 3300 XM Rear View DetailUnits on Segmentation Switch ConfigurationNetwork ExamplesUsing the Switch as a collapsed backbone SwitchSwitch Fast Ethernet configuration rules Configuration Rules with Full Duplex Introducing the Switch 3300 XM Installing the Switch Rack-mounting Repeat steps 2 and 3 for the other side of the Switch 3C16965. Contact your supplier for details Stacking UnitsYou need only one SuperStack 3 Switch 3300 MM per stack Stack of three units Powered-up and ready for operation Power-upSwitch 3300 XM SequenceCorrect Cables ChoosingColor State Problem Managing SwitchSafety Information Information Important SafetyPersonnel only Important Safety Information Sécurité Importante ’information de’information de Sécurité Importante Wichtige Sicherheitsinformat ionen PC-AT Serial Cable PIN-OUTSModem Cable Pin Number Signal FunctionRJ45 Pin AssignmentsPin Number Signal Function Appendix B PIN-OUTS Safety Physical DimensionsPower Supply Environmental RequirementsVlan MIB RFC Online Technical ServicesUsername anonymous Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Glossary Broadcast BridgeCollision EndstationPage Loop Line speedMulticast ProtocolStack ServerSuperStack TelnetGlossary Index Index 3Com Corporation Limited Warranty Page Disclaimer Regulatory Notices