Oracle Acme Packet 4500, Hardware Installation And Maintenance Manual

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COMPONENT OVERVIEW
Acme Packet 4500 Hardware Installation and Maintenance Guide 23
Grounding Terminals The grounding terminals are used to attach the Acme Packet 4500 chassis to a local
earth ground. The terminals are located between the two power supplies on the
chassis rear.
Cooling Components
The Acme Packet 4500 must remain well ventilated for reliable and continuous
operation. The cooling features of the chassis include:
• Fan module
•
Fan Filter
Fan Module
The Acme Packet 4500 chassis pulls cool ambient air into its chassis through intake
fans and is exhausted through perforated air outlets located along the rear of the
chassis. To avoid overheating the system, do not block the air intake or exhaust ways
or otherwise obstruct airflow to the system in any way.
The following figure shows the Acme Packet 4500’s fan module. The fan module
attaches to the chassis with two captive screws, and is powered by a connector that
joins to the motherboard when screwed into the chassis. The air filter is not shown
in this image.
Figure 2 - 27. Fan Module
The Acme Packet 4500 automatically adjusts fan speed based on the current
operational status and environmental conditions. Fan speed regulation is an
automated process that requires no user intervention. You can monitor the status of
the fan speed from the Environment menu of the graphic display.
The fan module is a user-replaceable, hot-swappable component. If the Acme
Packet 4500 experiences a fan module malfunction and generates an alarm, you
must remove the existing fan module and replace it with a fully functioning fan
module.
Air Filter
The Acme Packet 4500’s foam air filter removes airborne particles before they are
drawn into the system chassis.