Chapter2 Preparing to Install the Wide Are a Application Engine
Safety Guidelines
2-6
Cisco Wide Area Application Engine 7326 Hardware Installation Guide
OL-6831-02
•To help protect your system components from sudden, transient increases and
decreases in electrical power, use a surge suppressor, line conditioner, or
uninterruptible power supply (UPS).
•Position cables and power cords carefully; route cables and the power cord
and plug so that they cannot be stepped on or tripped over. Be sure that
nothing rests on your system components’ cables or power cord.
•Do not modify power cables or plugs. Consult a licensed electrician or your
power company for site modifications. Always follow your local or national
wiring rules.
System Reliability Considerations
To help ensure proper cooling and system reliability, make sure the following
occurs:
•Each of the drive bays has either a drive or a filler panel installed.
•Each of the power-supply bays has a power supply or a power supply filler
panel installed.
•For rack configurations, make sure that space is available around the
appliance to enable the cooling system to work properly. See the
documentation that comes with the rack for additional information.
•The appliance cover is in place during normal operation.
•The air baffle cover over the microprocessors remains closed during normal
operation.
•The air baffle is installed between the fans and the power supply.
•A removed hot-swappable drive is replaced within 2 minutes of removal.
•Cables for optional adapters are routed according to the instructions provided
with the adapters.
•A failed fan is replaced within 48 hours.
•The appliance is powered down and the power cords are disconnected before
you open the air baffle cover.
•The air baffle assembly is always installed in the appliance except when you
are installing or removing the components that are located under the air baffle
cover.