Hitachi Advanced Server HA820 G2 User Guide 71
CAUTION:
The server equipment connects the earthed conductor of the DC supply circuit to the earthing
conductor at the equipment. For more information, see the documentation that ships with the power
supply.
CAUTION
: If a 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.
Locate the equipment 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 must 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.
Procedure
1.
Cut the DC power cord ends no shorter than 150 cm (59.06 in).
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 5.0 mm (0.197 in).
2.
If the power source requires ring tongues, use a crimping tool to install the ring tongues on the
power cord wires.
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.
Energy pack options
Hitachi Vantara offers two backup power options to back up write cache content on the controllers in case of an
unplanned server power outage.
•
Smart Storage Battery
•
Smart Storage Hybrid Capacitor
Once installed, the status of the energy pack displays in iLO. For more information, see the iLO user guide on
the
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