Motorola CPCI-6115 Manuel de service Page 74

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CPX8216 and CPX8216T Installation and Use (6806800A52C)
Chapter 6 Chassis Operations
54
Fans should be put in temperature controlled mode to reduce the noise level of the chassis. This
is done using API calls supplied by the operating system software.
The chassis is designed with N+1 cooling. If one fan fails, the chassis may operate at normal
operating temperatures up to 45° C air inlet temperature. Note that this is below the maximum
operating temperature of 55° C.
The fans are mounted on the front of the fan/power supply sled. In chassis equipped with only
two power supplies, the third fan is provided on a fan-only sled.
Refer to Fan and Power Supply Sled Removal and Installation on page 93 for information about
replacing a fan/power supply sled. Note: Fans must be replaced as a unit.
Air filters are an optional item. Air filters will last for approximately 90 days, depending on the
conditions of the Central Office Environment. Check your air filters occasionally to make sure
they are not obstructed or damaged, or if they need to be cleaned or replaced. It is
recommended that you replace any damaged or obstructed filters. Please see the next section
for specific details on the CPX8216’s cooling monitoring features.
You can order replacement air filter media (Emerson Part Number 91-W5663C01A) from the
following manufacturer. This part number does not include the air filter frame, only the air filter.
Universal Air Filter Company
1624 Sauget Industrial Parkway
Sauget, IL 62202
Phone: (800) 541-3478
Fax: (618) 271-8808
To visit their website for more information, go to http://www.uaf.com.
Figure 6-8. Air Flow Diagram
4244 1103
Airflow
Exhaust
Airflow
Air Intake
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