Before lifting the enclosure, complete the following tasks:
v Unplug all cords and cables from the enclosure.
v Remove all DDIC modules from both drawers and make sure that the drawers are closed firmly and
locked shut. See "Locking drawers."
Use a minimum of three people to lift the enclosure.
Use the lifting straps that are supplied with the enclosure. Do not lift the enclosure by the handles on the
power supply units, cooling modules, or I/O modules. They are not designed to take the weight.
Do not lift the enclosure higher than 20U (35 in.). Use mechanical assistance to lift above this height.
Operation
Important: All rear modules are part of the fire enclosure and must be removed when a replacement can
be immediately inserted.
Important: The enclosure does not receive sufficient airflow or cooling if it is operated with any missing
rear modules. Every module bay must be filled either with a module or a blank module.
Figure 2. Chassis label (FCC compliance)
Chapter 1. Appliance safety precautions 3
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