!
45
5. Re-attach the bracket
Insert
the bottom part of the
bracket into the groove of the
case and then press the
bracket into place and tighten
the bracket screw.
Bracket
6. Attach the cover to the compartment.
When
the Expansion Data Memory Unit is mounted to the CPU, the Expansion
Data Memory Unit is backed up by the battery in the CPU.
When the Unit has been removed from the CPU, the memory contents will be
retained
for about
10 minutes by a backup capacitor built-in to the Unit, provided
that
CPU power was ON and that the Unit was mounted in the CPU for
at least 1
minute.
When
removing the Expansion Data Memory Unit, be sure to turn ON the power
to
the PC for more than 1 minute and
then turn it OFF
. At that time the capacitor
will be fully charged allowing it to be backed up for 10 minutes. The retention
period will be shorter if Memory Unit has been mounted (to the CPU) for less
than 1 minute.
3-2 Installation Environment
This section details the necessary environmental conditions for installing the
PC.
Caution Static
electricity can
damage PC components. Y
our body can carry an electro
-
static charge, especially when the humidity is low. Before touching the PC, be
sure
to first touch a grounded metallic object, such as a metal water pipe, in order
to discharge any static build-up.
Ambient Conditions Do
not install the PC in any of the following locations. Doing so will af
fect PC life
and may affect operating performance.
• Locations subject to ambient temperatures lower than 0°C or higher than
55°C.
• Locations subject to drastic temperature changes or condensation.
• Locations subject to ambient humidity lower than 10% or higher than 90%.
• Locations subject to corrosive or flammable gases.
• Locations subject to excessive dust (especially iron dust) or chloride.
• Locations that would subject the CPU to direct shock or vibration.
• Locations that would subject the PC to water, oil, or chemical reagents.
• Locations exposed to direct sunlight.
Cooling There
are two points to consider in order to
ensure that the PC does not over
-
heat.
The first is the clearance between the Racks, and the second is installation
of a cooling fan.
Installation Environment Section 3-2
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