HP BL30p - Manual (Page 36)

Operating and Operating and Operating and Operating and
Performance
Performance Performance Performance
Specifications for
Specifications for Specifications for Specifications for
Facility DC
Facility DC Facility DC Facility DC
Voltage Voltage Voltage Voltage Nominal input voltage -48 VDC
Operating voltage range -48VDC ± 10% or -43.2 VDC to -52.8 VDC
Max Input voltage slew rate 0.5V/uS
Redundant feed voltages*
(A & B) *A and B feeds must differ by no more than 5VDC during
steady state operation
Ripple/Noise 480 mV PARD**
Overshoot Must remain within regulation limits on all feeds during
startup or shutdown
Voltage transients Must not exceed -60 VDC
Current Current Current Current Max steady state input current 62.5A per server blade enclosure installed at -48VDC
Max steady state current per
feed/total
Power bus boxes 70 A/70A
Mini bus bars 210 A/210A
Scalable bus bars 210 A/350A or equivalent of 175A per feed*
In-rush current In-rush current In-rush current In-rush current Must support up to 2X the maximum operating current per server blade enclosure (125 A)
for up to 1.0 mS
Input over-current Input over-current Input over-current Input over-current Customer provided fusing for facility DC feeds that protects the system from catastrophic
over-current within 20 uS. Fuse should sustain all in-rush and operating currents.
Max Input Current Slew Max Input Current Slew Max Input Current Slew Max Input Current Slew
Rate
Rate Rate Rate
1A/uS
Max Rated Power Max Rated Power Max Rated Power Max Rated Power 3000W per server blade enclosure
Connections and Cables Connections and Cables Connections and Cables Connections and Cables HP provided facility DC cable connection kit:
The facility DC connection kit supports the connection of up to four -48VDC,
RETURN pairs and ground
The power cable assemblies consist of 1/0AWG, colour-coded, flexible cable rated at 105°
C, terminated with bus mating connectors at one end and unterminated at the other end.
The cable length provided enables the customer to route to a fuse panel within or adjacent
to the rack.
NOTE: NOTE: NOTE: NOTE: *All systems support redundant A and B feeds. Scalable bus bars support dual A and dual B feeds.
** Periodic and random noise (PARD). Maximum allowable peak-to-peak ripple and noise (as measured at the load on any
output channel). The ripple and noise is measured over a 20 Hz to 100 MHz frequency band. A resistive load (non-
electronic) is used for this measurement. Each output is by-passed to return by a 10uF tantalum capacitor with an ESR less
than 100 milli-Ohms in parallel with a 0.47 uF ceramic capacitor, at the point of load. The load cable is 12 feet of twisted
wire capable of carrying the current. The printed wiring board assembly is installed in its enclosure for this measurement, or
the measurement leads are properly shielded with Earth grounds applied to the insert.
© Copyright 2004 Hewlett-Packard Development Company, L.P.
The information contained herein is subject to change without notice.
Microsoft and Windows NT are US registered trademarks of Microsoft Corporation. Intel is a US registered trademark of Intel Corporation.
The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein
should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
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DA - 11958 Canada — Version 2 — June 29, 2004 Page 36