3Com 3CB9EF manual Chassis Fan Tray Removal Replacement Guide

Chassis Fan Tray Removal

and Replacement Guide

For the Switch 4007R 8-Slot Chassis

This guide describes how to remove and install a fan tray (Model Number 3CB9EF) for the Switch 4007R 8-slot chassis.

WARNING: The Switch 4007R fan tray must be installed and removed only by trained service personnel.

You can install a new fan tray in your Switch 4007R chassis while the power is on (which is referred to as hot swapping).

Fan Tray Description The Switch 4007R chassis and its modules are cooled by fan trays. The 8-slot chassis contains two fan trays, each of which contains three fans (Figure 1). Four fans cool the switch fabric modules, interface modules, and management modules and the two fans cool the power supply bay area.

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Part No.10014113 Published February 2002