Intel S2600CP Technical Product Specification - Page 163

Intel® Server Board S2600CP and Server System P4000CP TPS Intel® Server System P4000CP Power System Options 13.3.4.2 Standby Output The 12VSB output is present when an AC input greater than the power supply turn on voltage is applied. 13.3.4.3 Voltage Regulation The power supply output voltages stay within the following voltage limits when operating at steady state and dynamic loading conditions. These limits include the peak-peak ripple/noise. These shall be measured at the output connectors. Table 101. Voltage Regulation Limits Parameter +12V +12V stby Tolerance - 5%/+5% - 5%/+5% Min +11.40 +11.40 Nom +12.00 +12.00 Max +12.60 +12.60 Units Vrms Vrms 13.3.4.4 Dynamic Loading The output voltages remains within limits specified for the step loading and capacitive loading specified in the table below. The load transient repetition rate is tested between 50Hz and 5kHz at duty cycles ranging from 10%-90%. The load transient repetition rate is only a test specification. The  step load may occur anywhere within the MIN load to the MAX load conditions. Table 102. Transient Load Requirements Output +12VSB  Step Load Size (See note 2) 1.0A +12V 60% of max load Note: For dynamic condition +12V min loading is 1A. Load Slew Rate 0.25 A/sec 0.25 A/sec Test capacitive Load 20 F 2000 F 13.3.4.5 Capacitive Loading The power supply is stable and meets all requirements with the following capacitive loading ranges. Table 103. Capacitive Loading Conditions Output +12VSB +12V Min 20 500 Max 3100 25000 Units F F 13.3.4.6 Grounding The output ground of the pins of the power supply provides the output power return path. The output connector ground pins are connected to the safety ground (power supply enclosure). This grounding is well designed to ensure passing the max allowed Common Mode Noise levels. The power supply is provided with a reliable protective earth ground. All secondary circuits is connected to protective earth ground. Resistance of the ground returns to chassis does not exceed 1.0 m. This path may be used to carry DC current. Revision 1.2 147 Intel order number G26942-003