3Com 4005 Installation And Maintenance Manual

Also see for 4005: Key Information Guide Datasheet

Contents

3Com 4005 Installation And Maintenance Manual Manual pdf 23 page image

Preinstallation Guidelines 23Rack InstallationGuidelinesReview the following guidelines before you install the chassis in a rack to ensureyour safety and the optimal performance of the Switch 4005:WARNING: To ensure mechanical stability and to avoid circuit overloading andimproper grounding, follow the rack manufacturer’s instructions for rackinstallation. If the instructions are unclear, consult a qualified electrician. Clip nuts are not included in the Switch 4005 chassis hardware kit. Clip nutsare not required for all rack types. Consult your rack manufacturer’sdocumentation. If you are going to use clip nuts, position them on the rack before you installthe chassis. You must position the clip nuts according to the rack type: For Metric racks, install clip nuts and screws in the closed slots of the chassisflanges (see Figure 4 on page 22). For Telco racks, install clip nuts and screws in the open slots of the flanges(see Figure 4 on page 22). Because the equipment rack environment can cause increased ambienttemperatures and reduced air flow, review the “Environmental Specifications”on page 16 and “Ventilation Requirements” on page 16. Review the section “Precautionary Guidelines” on page 17. Review the section “Safety Information” on page 18. Review the section “Safety Precautions” on page 22. Before you attempt to mount the chassis in a rack, select a rack that cansupport at least 61.8 kg (136.5 lb), which is three times the weight of a fullyloaded chassis. If you install more than one chassis in a rack, install the bottom chassis first.Chassis PreInstallationGuidelinesBefore you install the chassis: Move the Switch 4005 shipping box to a location near where you plan to installthe chassis. Leave the chassis in its packaging until you are ready to install it. For a rack installation, make certain that you have a Phillips screwdriver, aflat-blade screwdriver, and the hardware kit available. For table or shelfinstallation, have the rubber feet from the hardware kit available. Attach the flanges (L-shaped brackets) to the sides of the chassis before youattempt to lift and install the chassis in a rack.Cable ManagementDevice PreinstallationGuidelinesBefore you install any cable management device in a rack, determine which rackposition is best by examining the: Location in the rack where you plan to install the chassis Depth of the rack in which you plan to install the chassis Space required for proper ventilation of the chassis Space required for module cables to bend Proximity of other devices in the rack and their installation or environmentalrequirements