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Hardware acclimation times
Units must acclimate to the operating environment before applying power. This requires the unpackaged system or component
to reside in the operating environment for up to 16 hours in order to thermally stabilize and prevent condensation.
Table 9. Hardware acclimation times
Transit/storage environment
Temperature
Nominal
68-72°F (20-22°C)
Cold
<68°F (20°C)
Cold
<68°F (20°C)
Hot
>72°F (22°C)
Hot
>72°F (22°C)
Unknown
● If there are signs of condensation after the recommended acclimation time has passed, allow an additional 8 hours to
stabilize.
● Systems and components must not experience changes in temperature and humidity that are likely to cause condensation
to form on or in that system or component. Do not exceed the shipping and storage temperature gradient of 45°F/hr
(25°C/hr).
Removing, installing, or storing replaceable units
Use the following precautions when removing, handling, or storing replaceable units:
CAUTION:
Some replaceable units have the majority of their weight in the rear of the component. Ensure that
the back end of the replaceable unit is supported while installing or removing it. Dropping a replaceable unit
could result in personal injury or damage to the equipment.
NOTE:
For a module that must be installed into a slot in an enclosure, examine the rear connectors on the module for any
damage before attempting its installation.
CAUTION:
A sudden jar, drop, or even a moderate vibration can permanently damage some sensitive replaceable
units.
● Do not remove a faulted replaceable unit until you have the replacement available.
● When handling replaceable units, avoid electrostatic discharge (ESD) by wearing ESD anti-static gloves or an ESD wristband
with a strap. For additional information, refer to
● Avoid touching any exposed electronic components and circuits on the replaceable unit.
● Never use excessive force to remove or install a replaceable unit. Take time to read the instructions carefully.
● Store a replaceable unit in the antistatic bag and the specially designed shipping container in which you received it. Use the
antistatic bag and special shipping container when you need to return the replaceable unit.
Operating environment temperature
Humidity
-
Nominal
Nominal 68-72°F (20-22°C)
40-55% RH
40-55% RH
Dry
<86°F (30°C)
<30% RH
Damp
<86°F (30°C)
≥30% RH
Dry
<86°F (30°C)
<30% RH
Humid 30-45%
<86°F (30°C)
RH
Humid 45-60%
<86°F (30°C)
RH
Humid ≥60% RH <86°F (30°C)
<86°F (30°C)
Avoiding electrostatic discharge (ESD)
Safety precautions for handling replaceable units
Acclimation time
0-1 hour
4 hours
4 hours
4 hours
4 hours
8 hours
16 hours
16 hours
damage.
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