Power Supply Specification Guidelines  Intel® Server Board S2600CW Family TPS 
124    Revision 2.4 
10.2.1.3  LED Marking and Identification 
The power supply uses a bi-color LED: Amber and Green. Below are table showing the LED 
states for each power supply operating state and the LED’s wavelength characteristics. 
Refer to the Intel
®
 LED Wavelength and Intensity Specification for more details. 
Table 41. LED Characteristics 
 
Table 42. Power Supply LED Functionality 
No AC power to all power supplies. 
AC present/Only 12VSB on (PS off) or PS in Cold 
redundant state. 
AC cord unplugged or AC power lost; with a second 
power supply in parallel still with AC input power. 
Power supply warning events where the power supply 
continues to operate; high temp, high power, high 
current, slow fan. 
Power supply critical event causing a shutdown; failure, 
OCP, OVP, Fan Fail. 
Power supply FW updating. 
 
10.2.1.4  Temperature Requirements 
The power supply operates within all specified limits over the T
op
 temperature range. All 
airflow passes through the power supply and not over the exterior surfaces of the power 
supply. 
Table 43. Environmental Requirements 
op_sc_red
Operating temperature range; spreadcore redundant 
(60% load, 3000m, spreadcore system flow impedance
1
) 
op_sc_nr
Operating temperature range; spreadcore non-redundant 
(100% load, 3000m, spreadcore system flow impedance
1
) 
op_rackped_900
Operating temperature range; rack/pedestal 900m 
(100% load, 900m, rack/pedestal system flow impedance
1
) 
op_rackped_3000
Operating temperature range; rack/pedestal 3000m 
(100% load, 3000m, rack/pedestal system flow impedance
1
)