Table of Contents
Advertisement
Intel® Server Chassis SC1400UP / Intel® Server Platform SR1425BK1-E
supply operation is no longer guaranteed, PWOK will be de-asserted to a LOW state. See
Figure 37. Turn On/Off Timing for a representation of the timing characteristics of PWOK. The
start of the PWOK delay time shall inhibited as long as any power supply output is in current
limit.
Signal Type
PWOK = High
PWOK = Low
Logic level low voltage, Isink=4mA
Logic level high voltage, Isource=200µA
Sink current, PWOK = low
Source current, PWOK = high
PWOK delay: T
pwok_on
PWOK rise and fall time
Power down delay: T
6.39 Environmental Requirements
6.40
Temperature
Operating Ambient, normal mode (inlet air): +0°C min / +45C max at 1800 meter above sea
level.
(At full load, with a maximum rate of change of 5°C/10 minutes, but no more than 10°C/hr)
Operating Ambient, stand-by mode (inlet air): +0°C min / +45°C max at 1800 meter above sea
level.
Non-operating Ambient: -40°C to +70°C
6.41
Humidity
Operating:
To 85% relative humidity (non-condensing)
Non-Operating:
To 95% relative humidity (non-condensing)
NOTE: 95% relative humidity is achieved with a dry bulb temp. of 55°C and a wet bulb temp. of
54°C.
6.42
Altitude
Operating:
to 1800m
Non-operating:
6.43
Mechanical Shock
Non-operating:
50 G Trapezoidal Wave, Velocity change = 170 in. / sec.
Three drops in each of six directions are applied to each of the samples.
Operating:
2 G Trapezoidal Wave, Velocity change = 170 in. / sec.
Three drops in each of six directions are applied to each of the samples.
Revision 1.0
Table 42. PWOK Signal Characteristics
Open collector/drain output from power supply.
Pull-up to VSB located in system.
pwok_off
(Maximum rate of change of 20°C/hour)
Power OK
Power Not OK
MIN
0V
2.4V
100ms
1ms
to 50,000 ft
MAX
0.4V
5.25V
4mA
2mA
1000ms
100µsec
200msec
- 66 -
Advertisement
Table of Contents
