3Com 16985ua.bk manual Rack-mounting

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24CHAPTER 2: INSTALLING THE SWITCH

Choosing a Suitable The Switch is suited for use in an office environment where it can be

Sitemounted in a standard 19-inch equipment rack, or free standing. Alternatively, the Switch can be rack-mounted in a wiring closet or equipment room. A rack-mounting kit, containing two mounting brackets and four screws, is supplied with the Switch.

When deciding where to position the Switch, ensure that:

■You are able to meet the configuration rules detailed in “Configuration Rules for Fast Ethernet” on page 20.

■The Switch is accessible and cables can be connected easily.

■Cabling is away from:

■Sources of electrical noise such as radios, transmitters and broadband amplifiers

■Power lines and fluorescent lighting fixtures

■Water or moisture cannot enter the case of the Switch.

■Air-flow is not restricted around the Switch or through the vents in the side of the Switch. We recommend that you provide a minimum of 25mm (1in.) clearance.

■No more than four Switch units are placed on top of one another, if the units are free standing.

■If used in an office environment, the switch is positioned so that any noise from the fan is not disruptive.

Rack-mounting

The Switch is 1U high and fits in most standard 19-inch racks.

CAUTION: Disconnect all cables from the Switch before continuing. Remove all self adhesive pads from the underside of the Switch if they have been fitted.

1Place the Switch the right way up on a hard flat surface, with the front facing towards you.

2Locate a mounting bracket over the mounting holes on one side of the Switch, as shown in Figure 7.

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Contents SuperStack 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents PIN -OUTS Page Page About this Guide Conventions Icon DescriptionConvention Description Related DocumentationYear ComplianceComments ProductIntroducing the Switch 3300 MM About SuperStack Switch 3300 MM Summary of FeaturesSwitch 3300 MM Front View Detail Switch 3300 MM front viewPower/Self Test LED Color Indicates Port Status LEDsUnit LEDs Switch 3300 MM Rear View Detail Power SocketUnits on Configuration Switch 3300 MM as aNetwork ExamplesSwitch Using the Switch as a collapsed backboneUsing the Switch in a desktop environment Fast Ethernet configuration rules Configuration Rules with Full Duplex Introducing the Switch 3300 MM Installing the Switch Rack-mounting Repeat steps 2 and 3 for the other side of the Switch Fitting a bracket for rack mountingStacking Units Treated as a single manageable unit with one IP addressStacking Units Stack of three units Power-up Powered-up and ready for operationSwitch 3300 MM SequenceChoosing Correct CablesPort, you need a cross-over cable. Most of the 10BASE-T Color StateProblem Switch Network. For information on managing the Switch usingManaging GuideSafety Information Important Safety InformationPersonnel only Important Safety Information ’information de Sécurité ImportantePersonnel qualifié Étroites’information de Sécurité Importante Wichtige Sicherheitsinformat ionen Null Modem Cable PC-AT Serial CablePin to RS-232 25-pin Pin to 9-pinConnectors Pin Number Signal FunctionModem Cable RJ45 PinPin Number Signal Function Appendix B PIN-OUTS Physical Dimensions SafetyPower Supply Environmental RequirementsVlan MIB RFC Services Online TechnicalUsername anonymous Europe, South Africa, and Middle East Country Telephone Number Asia, Pacific RimCountry Telephone Number Fax Number Glossary Broadcast CollisionEndstation EthernetLine speed See baud Loop MulticastProtocol RepeaterServer StackSuperStack TelnetGlossary Index Index 3Com Corporation Limited Warranty Page Disclaimer Regulatory Notices

16985ua.bk specifications

The 3Com 16985UA.BK is a renowned networking product that has made a significant impact on the realm of technology, particularly in the area of networking and data communication. As part of the 3Com family, this device is recognized for its reliability and effectiveness in connecting devices and managing networks. Manufacturers and IT professionals turn to 3Com products for their robust architecture and versatility, and the 16985UA.BK excels in these departments.

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Overall, the 3Com 16985UA.BK is a robust networking solution that accommodates various user needs. Its combination of advanced connectivity options, compatibility with established protocols, robust security measures, and high performance renders it a dependable choice for both personal and professional use. The enduring reputation of 3Com reinforces the reliability of the 16985UA.BK, making it a valuable asset in the modern digital landscape.
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