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Setup: KAT4000 Setup
KAT4000 User’s Manual 10007175-02
2-16
Power Requirements
The KAT4000 draws all payload power from the dual redundant -48 volt inputs on the ATCA
connector P10 (Zone 1). Under normal operating conditions, the power requirement is
shared between the two -48 volt supplies. Power is limited to 200 watts maximum (includ-
ing AMC and optional RTM sites), with 80W maximum per site and a combined max of
120W to all four sites and the RTM, if used. Optional RTMs receive their power from the
KAT4000.
Tab le 2 - 5 lists the board’s typical power requirements.
Table 2-5: Typical Power Requirement
Note: When the KAT4000 is powered off, so is the RTM.
The exact power requirements for the KAT4000 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
constraints and other factors greatly affect the air flow rate. The environmental require-
ments are shown in
Tab le 2- 6 and Ta ble 2 -7 .
Table 2-6: Environmental Requirements
Table 2-7: Air Flow Requirements
1. The physical placement of AMC modules greatly affects air flow requirements. Air flow is required at the
processor to maintain junction temperature less than 105° C at specified ambient temperature.
Configuration: Watts:
1.3 GHz 8548 processor, 1 GB DDR2 SDRAM,
No AMC modules
40 W
Environment: Range: Relative Humidity:
Operating
Temperature
0° to +55° Centigrade, ambient
(at board)
Not to exceed 85%
(non-condensing)
Storage Temperature —40° to 70° Centigrade Not to exceed 95%
(non-condensing)
Altitude 0 to 4,000 meters above sea level n/a
Configuration: Power/Temperature: Air Flow:
1.3 GHz processor with
1 GB DDR2 SDRAM
1
4 AMC
modules
182 W @ 55° C
(35.5 W per AMC)
21 CFM