DS760SL Series Data Sheet
PSKILL
AC INPUT PRESENT INDICATOR (ACOK#)
The +12 Vdc output only from the power supply shall be disabled if
the PSKILL input is high and V Standby will continue to be
provided, outputs may be enabled if this signal is low. The power
supply includes a pull up to disable all outputs if this signal is open.
PSKILL whall not be connectd during a hot insertion before all of
the other pins are connected.
The ACOK# signal is used to indicate presence of AC input to the
power supply. This signal shall be connected to 5.0 Vsb through a
resistor on the host system side. A logic “High” level on this signal
shall indicate AC input to the power supply is present. A Logic
“Low” on this signal shall indicate a loss of AC input to the power
supply.
ACOK# Signal Characteristics
Signal Type
Pull up to 5.0 Vsb through a
resistor in the
STATUS INDICATIONS
See table below for Summary of Status signals, Ports and
Indicators. The condition column assumes 2 or more power
supplies present and ON and 5.0 Vsb shared for management
interface. On the “Fan Blocked” condition, the assumption is that
all outputs are within spec and not over temperature. This would
be considered a “warning” condition. On the “Standby” condition,
the system differentiates this state by knowing PS_ONL in
negated (requesting Standby).
host system.
PWOK = High
PWOK = Low
Present
Not Present
MIN
0 V
MAX
Logic level low voltage, Isink = 4 mA
Logic level high voltage, Isink = 50 µA
Sink current, PRESENT# = low
0.8 V
4.125 V
4 mA
2.0 V
Sink current, PRESENT# = high
50 µsec
Status Indicators
Status Signals
Status Register
Shutdown Register
LED’s
DC
Condition
ACOK/H PWOK/H
PSON
PWOK
Fan-Fail
AC-Loss
0-Temp
0-Current Fail
AC
On
On
Off
On
Fail
Off
On
Off
Off
Normal Operation
1
1
0
1
1
0
0
1
1
1
1
1
1
0
0
1
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
1
1
0
On
Off
V1 12 V Overcurrent
AC Input Fail
Off
Fan Blocked or Running Under Speed.
O/P’s ok
On
UV on V1 12 V and PS Has Latched Off
UV on Vsb +5.0 and PS Has Turned Off
1
1
1
0
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
On
On
On
Off
Off
Off
On
On
On
OV on V1 12V or Vsb +5.0 & PS Has
Latched Off
Over Temp and PS Has Turned Off
Fan Below Shutdown Limit
1
1
1
0
0
0
1
1
0
0
0
0
0
1
0
0
0
0
1
0
0
0
0
0
1
1
0
On
On
On
Off
Off
Off
On
On
Off
No Problems But PS is in Standby Mode
ARTESYN [ ARTESYN TECHNOLOGIES ]
