Setup 46
CAUTION:
If the DC connection exists between the earthed conductor of the DC supply circuit
and the earthing conductor at the server equipment, the following conditions must be met:
• This equipment must 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 should be located in the same immediate area (such as adjacent cabinets)
as any other eq
uipment 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 should be earthed elsewhere.
• The DC supply source is to be located within the same premises as the equipment.
•
Switching or disconnecting devices should not be in the earthed circuit conductor between
the DC source and the point of connection of the earthing electrode conductor.
To connect a DC power cable to a DC power source:
1. Cut the DC power cord ends no shorter than 150 cm (59.06 in).
2. If the power source requires ring tongues, use a crimping tool to install the ring tongues on the power
cord wires.
IMPORTANT: The ring terminals must be UL approved and accommodate 12 gauge wires.
IMPORTANT:
The minimum nominal thread diameter of a pillar or stud type terminal must be
3.5 mm (0.138 in); the diameter of a screw type terminal must be 4.0 mm (0.157 in).
3. Stack each same-colored pair of wires and then attach them to the same power source. The power
cord consists of three wires (black, red, and green).
For more information, see the documentation that ships with the power supply.
Server warnings and cautions
WARNING: To reduce the risk of personal injury from hot surfaces, allow the drives and the
internal system components to cool before touching them.
WARNING:
To reduce the risk of personal injury, electric shock, or damage to the equipment,
remove the power cord to remove power from the server. Pressing the Power On/Standby
button does not shut off system power completely. Portions of the power supply and some
internal circuitry remain active until AC power is removed.
CAUTION: Protect the server from power fluctuations and temporary interruptions with a
regulating uninterruptible power supply. This device protects the hardware from damage
caused by power surges and voltage spikes and keeps the system in operation during a powe
failure.
CAUTION: Do not operate the server for long periods with the access panel open or
removed. Operating the server in this manner results in improper airflow and improper cooling
that can lead to thermal damage.
Identifying the contents of the server shipping carton
Unpack the server shipping carton and locate the materials and documentation necessary for installing
the server.
The contents of the server shipping carton include:
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