Setup: ATCA-9305 Setup
10009109-01 ATCA-9305 User’s Manual 2-9
Power RequirementsThe 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 ConsiderationsAs 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 r equirements
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