Dell PowerEdge 2950 Instructions

Cabling Instructions for the –48 VDC Power Supply 3
This document describes the requirements and wiring instructions for a –48 VDC power cable and safety
ground wire for systems equipped with a –48 VDC power supply.
CAUTION: This equipment is designed to permit the connection of the earthed conductor of the DC supply circuit
to the earthing conductor at the equipment. See installation instructions.
This equipment is designed to permit the connection of the earthed conductor of the DC supply circuit to the
earthing conductor at the equipment. If this connection is made, all of the following conditions must be met:
– This equipment shall be connected directly to the DC supply system earthing electrode conductor or to a
bonding jumper from an earthing terminal bar or bus to which the DC supply system earthing electrode
conductor is connected.
– This equipment shall be located in the same immediate area (such as, adjacent cabinets) as any other
equipment that has a connection between the earthed conductor of the same DC supply circuit and the
earthing conductor, and also the point of earthing of the DC system. The DC system shall not be earthed
elsewhere.
– The DC supply source shall be located within the same premises as this equipment.
– Switching or disconnecting devices shall not be in the earthed circuit conductor between the DC source and
the point of connection of the earthing electrode conductor.
CAUTION: A qualified electrician must perform all connections to DC power and safety grounds. The system
must be safety grounded at the cabinet frame. All electrical wiring must comply with applicable local or national
codes and practices.
CAUTION: The system chassis must be positively grounded to the rack cabinet frame. Do not attempt to connect
power to the system until grounding cables are connected.
CAUTION: An energy hazard will exist if the safety ground cable is omitted or disconnected.
Precaution Statements
This product is intended for restricted access locations (dedicated equipment rooms, equipment closet,
or the like) in accordance with the National Electrical Code, American National Standards Institute
(ANSI)/National Fire Protection Association (NFPA) 70.
Wire the unit with copper only, unless otherwise specified, 10 American Wire Gauge (AWG) wire rated
minimum 90ºC in parallel for source and return. Protect the
–48 V (1 wire) with a branch circuit
overcurrent protection rated 30-A rated for DC with a high interrupt current rating.
Connect the equipment to a –48 VDC supply source that is electrically isolated from the AC source (reliably
grounded 48 VDC SELV source). Ensure that the
–48 VDC source is efficiently secured to earth (ground).
A readily accessible disconnect device that is suitably approved and rated shall be incorporated in the
field wiring.
CAUTION: When stranded wiring is required, use approved wiring termination, such as closed-loop or
spade-type with upturned lugs. These terminations should be the appropriate size for the wires and must be
double crimped, one on the conductor and one on the insulation.
CAUTION: When installing the unit, the ground connection must always be made first and disconnected last to
prevent an energy hazard.
book.book Page 3 Thursday, April 5, 2007 2:59 PM

Dell PowerEdge 2950 Specifications

General

Tcase	67 °C
Bus type	FSB
Stepping	E0
FSB Parity	Yes
Processor code	SLBBP
Processor cache	12 MB
Processor cores	4
Processor model	E5405
System bus rate	- GT/s
Processor series	Intel Xeon 5400 Series
Processor socket	LGA 771 (Socket J)
Processor codename	Harpertown
Motherboard chipset	Intel® 5000X
Processing Die size	214 mm²
Processor frequency	2 GHz
Processor cache type	L2
Processor lithography	45 nm
Processor manufacturer	Intel
Processor package size	37.5 x 37.5 mm
Processor front side bus	1333 MHz
Processor operating modes	64-bit
ECC supported by processor	No
Thermal Design Power (TDP)	80 W
Number of processors installed	1
CPU multiplier (bus/core ratio)	6
Number of Processing Die Transistors	820 M
HDD size	3.5 \
HDD capacity	160 GB
HDD interface	Serial ATA
Total storage capacity	3320 GB
Maximum storage capacity	6 TB
Graphics card	ES1000
Memory slots	8x DIMM
Internal memory	4 GB
Memory clock speed	667 MHz
Internal memory type	DDR2-SDRAM
Maximum internal memory	64 GB
Memory layout (slots x size)	2 x 2 GB
Maximum graphics card memory	16 MB
Networking features	Broadcom NetXtreme IITM 5708 Gigabit5 Ethernet NIC
Supported network protocols	TOE (TCP/IP)
Other network protocols supported	iSCSI Boot
PS/2 ports quantity	0
USB 2.0 ports quantity	5
Bundled software	Symantec Backup ExecTM 12.5 Symantec Backup ExecTM System Recovery 8.5 CommVault 7.0 Vizioncore
Compatible operating systems	Microsoft Windows Server 2008, Microsoft Windows Server 2003 Red Hat Linux Enterprise SUSE Linux Enterprise Server 10 x86-64 VMware ESX 3.5
Chassis type	Rack (2U)
Storage temperature (T-T)	-40 - 65 °C
Operating temperature (T-T)	10 - 35 °C
Storage relative humidity (H-H)	-40 - 65 %
Operating relative humidity (H-H)	20 - 80 %
Certification	FCC (U.S. only) Class A ICES (Canada) Class B CE Mark (EN 55022 Class B, EN55024, EN61000-3-2, EN61000-3-3) VCCI (Japan) Class B BSMI (Taiwan) Class A C-Tick (Australia/New Zealand) Class B SABS (South Africa) Class B CCC (China) Class B MIC (Korea) Class B UL 60950 CAN/CSA C22.2 No. 60950 EN 60950 IEC 60950
Processor ARK ID	33079

Weight and Dimensions

Depth	744 mm
Width	444.3 mm
Height	86.4 mm
Weight	23000 g