3Com 4005 Installation And Maintenance Manual

Also see for 4005: Key Information Guide Datasheet

Contents

3Com 4005 Installation And Maintenance Manual Manual pdf 16 page image

16 CHAPTER 3: SITE R EQUIREMENTS AND P RODUCT S PECIFICATIONSEnvironmentalSpecificationsThe site for the Switch 4005 should meet the environmental requirements shownin Table 2:VentilationRequirementsThe chassis operates with two fan trays. Each fan tray contains two fans. Thesefans pull ambient air into the chassis from vents in the module faceplates andexpel hot air through vents in the back of the fan tray.Although the fan trays provide the majority of the cooling, the power supplies alsocontain fans. Each power supply pulls in ambient air through side vents in theadjacent chassis wall and expels hot air through its vents in the back.If a power supply overheats, it shuts itself off.To ensure that adequate ventilation exists for the Switch 4005: Maintain at least 7 cm (2.76 in.) between the sides of the chassis and thenearest wall or other vertical surface. Maintain at least 8 cm (3 in.) between the front of the chassis and anothervertical surface (such as a rack door). Maintain at least 91.4 cm (36 in.) at the back of the chassis.CAUTION: Operate a Switch 4005 chassis with all four fans running. If one fan ina fan tray fails, replace the fan tray as soon as possible.LocationRequirementsInstall the Switch 4005 in an area that meets the following location requirements: The surface on which you want to place the Switch 4005 chassis is level. The power source is within approximately 2 meters (6.6 feet) of the locationwhere you plan to install the Switch 4005. Each of the power supplies is connected to its own dedicated circuit. Do notconnect the power supplies to a single power strip. There is a sufficient amount of space on each side of the Switch 4005 chassisto accommodate any cables along the side of the chassis. There is at least 91.4 cm (36 in.) at the back of the chassis to service powersupplies and fans. If the chassis is the first device in your rack, then mount it about 10.2 cm (4 in.)above the floor.Table 2 Environmental SpecificationsOperating temperature1 0 °C to 50 °C ambient 2(32 °F to 122 °F)Operating humidity 10% to 90%, noncondensingStorage temperature -40 °C to 66 °C(-40 °F to 151 °F)Storage humidity 10% to 90%, noncondensing1 Switch operating temperature is the temperature of the environment in which the switch is installed.2 Ambient air is room air (more specifically, the air drawn into the switch by installed fans to coolinstalled switch components).