Intel SC5299UPNA Fiche technique télécharger pdf (Page 93)

Power Sub-system Intel

Entry Server Chassis SC5299-E TPS

Revision 3.1

Intel order number D37594-005

Table 94. PWOK Signal Characteristics

Signal Type

Open collector/drain output from power supply. Pull-up

to VSB located in system.

PWOK = High Power OK

PWOK = Low Power Not OK

MIN MAX

Logic level low voltage, Isink=4mA 0V 0.4V

Logic level high voltage, Isource=200 A

2.4V 5.25V

Sink current, PWOK = low 4mA

Source current, PWOK = high 2mA

PWOK delay: T

pwok_on

100ms 1000ms

PWOK rise and fall time

100 sec

Power down delay: T

pwok_off

1ms 200msec

2.4.5.4 SMBAlert#

This signal indicates that the power supply is experiencing a problem that the user should

investigate. The signal may be asserted due to critical events or warning events.

The SMBAlert# signal will be asserted whenever there is at least one event condition in the

power supply or cage.

The SMBAlert# signal will automatically be cleared when the cause of the event is no longer

present.

Table 95. SMBAlert# Signal Characteristics

Signal Type (Active Low)

Open collector/drain output from power supply.

Pull-up to VSB located in system.

Alert# = High OK

Alert# = Low Power Alert to system

MIN MAX

Logic level low voltage, Isink=4 mA 0 V 0.4 V

Logic level high voltage, Isink=50 A 5.25 V

Sink current, Alert# = low 4 mA

Sink current, Alert# = high 50 A

Alert# rise and fall time 100 s

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 153 154

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