User`s manual

Setup: ATCA-9305 Setup
10009109-01 ATCA-9305 User’s Manual
2-9
Power Requirements
The ATCA-9305 circuit board uses —48 volts from the backplane to derive 3.3 volts for the
IPMC and 12 volts for payload power.
Table 2-2: Typical Power Requirements
The exact power requirements for the ATCA-9305 circuit board depend upon the specific
configuration of the board, including the CPU frequency and amount of memory installed
on the board. Please contact Emerson Technical Support at 1-800-327-1251 if you have
specific questions regarding the board’s power requirements.
Environmental Considerations
As with any printed circuit board, be sure that air flow to the board is adequate. Chassis con-
straints and other factors greatly affect the air flow rate. The environmental requirements
are as follows:
Table 2-3: Environmental Requirements
Configuration: Power:
1.0 GHz MPC8548 and 800 MHz Cavium processors,
board running at room temperature with all
processors at U-Boot prompt
135 watts
Environment: Range: Relative Humidity:
Operating Temperature 0° to +55° Centigrade, ambient
(at board)
Not to exceed 85% (non-
condensing)
Storage Temperature —40° to 85° Centigrade Not to exceed 95%
(non-condensing)
Altitude 0 to 4,000 meters above sea
level
—
Air Flow Requires 30 CFM at 55° Centigrade at sea level. Meets thermal
performance requirements of CP-TA ATCA ICD Book 1.1Class B-2