DS2900-3 Emerson Network Power, DS2900-3 Datasheet - Page 2

• Manufacturer Part Number: DS2900-3
• Description: POWER SUP 12V 2900W 2U X 3U X 7"
• Manufacturer: Emerson Network Power
• Series: DS2900r

Specifications of DS2900-3

• Voltage - Output: 12V
• Number Of Outputs: 1
• Power (watts): 2900W
• Applications: Commercial
• Power Supply Type: Switching (Closed Frame)
• Voltage - Input: 180 ~ 264VAC
• Mounting Type: Chassis Mount
• 1st Output: 12 VDC @ 240A
• Size / Dimension: 8.54" L x 4.17" W x 3.07" H (216.9mm x 105.9mm x 78mm)
• Power (watts) - Rated: 2880W
• Operating Temperature: 0°C ~ 50°C
• Efficiency: 91%
• Approvals: CB, CE, cUL, EN, NEMKO, UL
• Line Regulation: ±4%
• Load Regulation: ±4%
• Featured Product: DS2900 Series Power Supply
• 2nd Output: -
• 3rd Output: -
• 4th Output: -
• Power (watts) - Max: 2880W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• 3rd Output: -
• 2nd Output: -
• 4th Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Logic Control
Remote ON/OFF (PSON#)
The PSON # signal is required to remotely turn on/off the power supply. PSON # is an active low signal that turns on the +12 Vdc power rail.
When this signal is not pulled low by the system, or left open, the +12 Vdc output turns off. The 3.30 Vsb output remains on. This signal is
pulled to a stanby voltage by a pull-up resistor internal to the power supply. The power supply fan(s) shall operate at the lowest speed
Power Good (PWOK#)
PWOK# is a power good signal and will be pulled LOW by the power supply to indicate that both the outputs are above the regulation limits
of the power supply. When an output voltage falls below regulation limits or when AC power has been removed for a time sufficiently long
so that power supply operation is no longer guaranteed, PWOK will be de-asserted to a HIGH state. The start of the PWOK# delay time shall
be inhibited as long as the +12 Vdc output is in current limit or the 3.30 Vsb output is below the regulation limit.
Power Supply Present Indicator (PRESENT # )
The PRESENT # signal is primarily used to provide a mechanism by which the host system can sense the number of power supplies physically
present (operational or not). This pin is connected to ground in the power supply.
AC Input Present Indicator (ACOK#)
The AC OK # signal is used to indicate presence of AC input to the power supply. This signal shall be connected to 3.3 Vsb through a resistor
on the host system side. A logic “Low” level on this signal shall indicate AC input to the power supply is present. A Logic “HIgh” on this signal
shall indiciate a loss of AC input to the power supply.
Signal Type
PSON # = Low
PSON # = Open
Logic level low (power supply ON)
Logic level high (power supply OFF)
Source Current, Vpson = low
Power up delay: T pson on delay
Signal Type:
PWOK = High
PWOK = Low
Logic level low voltage, Isink = 4 mA
Logic level high voltage, Isource = 200 A
Sink current, PWOK = low
Source current, PWOK = high
PWOK delay: T pwok on
PWOK rise and fall time
Power down delay: T pwok off
Signal Type
PRESENT # = Low
PRESENT # = High
Table 2 PWOK# Signal Characteristics
Table 1 PSON# Signal Characteristics
Table 3 ACOK# Signal Characteristics
Accepts an open collector/drain input from the system. Pulled-up to the 3.30
Vsb located in the power supply
ON
OFF
MIN
0 V
2.0 V
5 msec
Open collector/drain output from power supply. Pull-up to 3.30Vsb external to
the power supply
Power not good
Power Good
MIN
0 V
2.0 V
100 ms
1 ms
Pull-up to 3.30 Vsb through a resitor in the host system
Present
Not Present
MAX
0.8 V
4.125 V
4 mA
400 msec
MAX
0.8 V
4.125 V
4 mA
2 mA
1000 ms
100 sec
1000 msec
Embedded Power for
Business-Critical Continuity
Rev. 03.15.11_44
DS2900
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