Embedded Power for
Business-Critical Continuity
Rev. 11.9.09_44
DS2900
1 of 4
DS2900
2900 Watts
Distributed Power System
Distributed Power Bulk Front-End
Total Output Power: 2900 Watts
+3.3 Vdc Stand-by Output
WideRangeInputVoltage: 180 - 264 Vac
Electrical Specifications
Special Features
Input
Input range:
180 - 264 (2900 W)
• Active power factor correction
• EN61000-3-2 harmonic compliance
• Active AC inrush control
Frequency:
47-63 Hz, single phase AC
50 Apk maximum inrush current
Inrush current:
Efficiency:
• 2U X 3U form factor
> 91% typical at nom line 50% load
FCC Subpart J EN55022 Class A
3
• 24.8 W / in
Conducted EMI:
Radiated EMI:
• +12 Vdc Output
FCC Subpart J EN55022 Class A
Meets intent of NEBS, Bel Core GR-1089
0.99 typical
1.40 mA @ 240 VAC
12 ms minimum
• +3.3 Vdc stand-by
(5 V standby - consult factory)
• No minimum load required
• Hot plug operation
• N + 1 redundant
• Internal OR’ing fets
• Active current sharing
(10 - 100% load)
Power factor:
Leakage current:
Hold up time:
Output
Main DC voltage:
+12 V @ 240 A (high line)
+3.3 Vsb @ 3 A
• Built-in cooling fan
(40 mm x 28 mm)
Stand-By:
Adjustment range:
Regulation:
± 10% on +12V only using I2C
2
• I C communication interface bus
+12 Vdc; +4% / -4%
+3.3 Vsb; +5% / -5%
• PMBus compliant
• EERPOM for FRU data
• Red/green bi-color LED status
• Internal fan speed control
• Fan Fail Tach Output Signal
• INTEL, SSI Std. logic timing
• INTEL, SSI Std. FRU data format
PSM/V2.12
Over current:
Over voltage:
Constant current type for both the 12 VDC and 3.3V standby.
See Figure 1 below
+12 Vdc; 13.2 - 15.6 Vdc (110 - 130%)
+3.3 Vsb; 3.63 V - 4.29 (110 - 130%)
+12 Vdc; 9 - 10.8 V (latch off)
Under voltage:
Turn-on delay:
Main output rise time:
2 second max, 5 - 200 mS, monotonic rise
5 - 300 mS, monotonic rise
• Full digital control
• Two year warranty
• Compatible with Emerson
Universal PMBus GUI
Iout limit
Vout nominal
Vout
Safety
• UL/cUL 60950 (UL Recognized)
• NEMKO+ CB Report EN60950
• EN60950
Iout
(+12VDC) 120% 130%
(3.3VSB) 115% 140%
• CE Mark
• China CCC
Figure 1