Table 21: Site Preparation Checklist (continued)DatePerformed ByFor More InformationItem or TaskRack or Cabinet“Rack Requirements for J-EX4500Switches” on page 57“Cabinet Requirements forJ-EX4500 Switches” on page 58Verify that your rack or cabinet meets theminimum requirements for the installation ofthe switch.“Clearance Requirements for Airflowand Hardware Maintenance forJ-EX4500 Switches” on page 60Plan rack or cabinet location, including requiredspace clearances.Secure the rack or cabinet to the floor andbuilding structure.CablesAcquire cables and connectors:• Determine the number of cables neededbased on your planned configuration.• Review the maximum distance allowed foreach cable. Choose the length of cable basedon the distance between the hardwarecomponents being connected.Plan the cable routing and management.RelatedDocumentationGeneral Safety Guidelines and Warnings for J-EX Series Switches on page 159•• General Site Guidelines for J-EX Series Switches on page 54• Installing and Connecting a J-EX4500 Switch on page 75• Mounting a J-EX4500 Switch on page 78General Site GuidelinesEfficient switch operation requires proper site planning and maintenance and properlayout of the equipment, rack or cabinet (if used), and wiring closet.To plan and create an acceptable operating environment for your device and preventenvironmentally caused equipment failures:• Keep the area around the chassis free from dust and conductive material, such asmetal flakes.• Follow prescribed airflow guidelines to ensure that the cooling system functions properlyand that exhaust from other equipment does not blow into the intake vents of thedevice.54Dell PowerConnect J-Series J-EX4500 Ethernet Switch Hardware Guide