SilverStone SST-ST75F-GS (V3.1) [10/12] Manual st75f g p177 st65f g p178 st55f g p179 v1 8

CE,FCC

CUL, CB,TUV

7. Conducted EMI

8.1 Safety Requirement

The AC leakage current is less than 3.5mA when the power supply connect to 264Vac/50Hz .

8.2 Leakage Current

The insulation resistance should be not less than 30M ohm after applying of 500VDC for 1 minute.

8.3 Insulation Resistance

The power supply shall withstand for 1 minute without breakdown the application of a 60Hz 1500V AC

voltage applied between both input line and chassis (20mA DC cut-off current). Main transformer shall

similarly withstand 3000Vac applied between both primary and secondary windings for a minimum of

one minute.

8.4 Dielectric Voltage Withstand

8. Product Safety

A TTL compatible signal for the purpose of initiating an orderly start-up procedure under

normal input operating conditions. During power up, this signal is asserted ( low ) until

+5V is under regulation and AC reaches min. line specification range. After all voltage

are going appropriate level, the system may have a turn on delay of 100mS, but no

greater than 500mS. During power off the signal should go to low level before +5V is

out of regulation. The low level is 0 to 0.8V and high level is 4.75 to 5.25V. The " Power

Good "signal can drive up to 6 standard TTL loads.

9. Power Good Signal

Time Diagram