MODEL NO.:
RAM-2667~2668S
REV.:1.1
UL/cUL/TUV APPROVED
RS020338
4/6
2002/12/24
3. ELECTRONIC CHARACTERISTICS :
3-1. RISE TIME:
20mS
MAX.
3-2. HOLD UP TIME:
20mS MIN. TEST CONDITION AT 230V AC INPUT AND RATED LOAD, AC OFF POINT
AT 0 DEGREE.
3-3. OVER LOAD PROTECTION:
WHEN OUTPUT POWER OVER 105% TO
150%
OF RATED LOAD, THE POWER SUPPLY
WILL SHUTDOWN.
3-4. SHORT CIRCUIT PROTECTION:
WHEN OUTPUT SHORT TO GROUND, THE POWER SUPPLY WILL SHUTDOWN.
3-5. OVER TEMPERATURE PROTECTION: (OPTION)
WHEN THE POWER SUPPLY TEMPERATURE OVER
95
°C
, THE POWER SUPPLY
WILL SHUTDOWN.
3-6. POWER GOOD SIGNAL:
POWER ON WITHIN 100----500ms, high level ttl SIGNAL RELEASE.
3-7. PS-ON SIGNAL:
THE PS-ON TTL SIGNAL SWITCHES ON/OFF THE PS.
THE INPUT IS DUE TO A 30K PULL UP RESISTOR CONNECTED TO +5VSB.
IF THE INPUT IS OPEN (DEFAULT)THE PS IS SWITCHED OFF.
LOGIC STATE
FUNCTION
INPUT VOLTAGE
INPUT CURRENT
PS-ON =HI
P/S IS SWITCHED OFF PS-ON >2V
PS-ON =LOW P/S IS SWITCHED ON PS-ON <0.8V
MAX-3mA@0V
3-8. POWER FAIL ALARM:
IF ONE POWER MODULE FAIL OR TURN OFF, THE BUZZER WILL BEEP, AND TTL
SINGLE WILL ON LOW.
3-9. FAN FAIL ALARM:
ONE POWER MODULE FAN FAIL OR SYSTEMS FAN FAIL , THE BUZZER WILL BEEP
AND TTL SIGNAL WILL ON LOW.
4. MECHANICAL DATA :
RAM-2667 & RAM-2668 :
OUTLINE DIMENSION :
W 353 ×D 183 ×H 105
mm
RAM-2667S & RAM-2668S:
OUTLINE DIMENSION :
W 351 ×D 183 ×H 96
mm
