Embedded Power for
Business-Critical Continuity
DS850-3
850 Watts 12V
Distributed Power System
Distributed Power Bulk Front-End
Total Output Power: 850 Watts
+3.3vdc Stand-by Output
Wide Range Input voltage: 90 - 264VAC
Rev. 01.24.07
DS850-3
1 of 4
Electrical Specifications
Special Features
• Active Power Factor Correction
• EN61000-3-2 Harmonic
Compliance
• Active AC Inrush Control
• 1U X 2U Form Factor
• 15.4W/ in
3
• +12Vdc Output
• +3.3vdc Stand-By
(5V standby - consult factory)
• No Minimum Load Required
• Hot Plug Operation
• N + 1 Redundant
• Internal OR'ing Fets
• Active Current Sharing
(10 - 100% load)
• Built-in Cooling Fans
(40mm x 28mm)
• I
2
C Communication Interface Bus
• 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
• One Year Warranty
Input
Input range
Frequency
Inrush current
Efficiency
Conducted EMI
Radiated EMI
Power factor
Leakage current
Hold up time
90-264 VAC (wide range)
47-63 Hz, single phase AC
55A maximum inrush current
>82% typical at full load, high line
FCC Subpart J EN55022 Class B
FCC Subpart J EN55022 Class B
0.99 typical
1.40mA @ 240VAC
20ms minimum
+12V @ 70A
+3.3vsb @ 6A (5V @ 4A available)
Factory Set, no pot adjustments
+12Vdc; +5%/-5%
+3.3vsb; +5%/-5%
+12Vdc; 77A - 105A latches off if overcurrent lasts over
1 second, otherwise it is auto recovery.
+3.3vsb, 9A max (hiccup mode)
+12Vdc; 13.2 - 14.4vdc
+3.3vsb; 3.76 - 4.30vdc
+12Vdc; 9 - 10.8V (latch off)
2 Second max, 5 - 50mS, Monotonic Rise
5 - 50mS, Monotonic Rise
Output
Main DC voltage
Stand-By
Adjustment range
Regulation
Over current
Over voltage
Under voltage
Turn-on delay
+12VOutput Rise Time
Safety
UL/cUL 60950 (UL Recognized)
NEMKO+ CB Report EN60950
EN60950
CE Mark
China CCC
EMERSON-NETWORKPOWER [ EMERSON NETWORK POWER ]
