Hp Secure Key Manager User Manual Page 24

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The maximum recommended ambient operating temperature (TMRA) for the SKM system is 35° C (95° F).
The temperature in the room where the rack is located must not exceed 35° C (95° F).
CAUTION:
To reduce the risk of damage to the equipment when installing third-party options:
Do not permit optional equipment to impede airow around the SKM or to increase the internal rack
temperature beyond the maximum allowable limits.
Do not exceed the TMRA.
Power requirements
Installation of an SKM must comply with local and regional electrical regulations governing the installation
of information technology equipment by licensed electricians. This equipment is designed to operate in
installations covered by NFPA 70, 1999 Edition (National Electric Code) and NFPA-75, 1992 (code for
Protection of Electronic Computer/Data Processing Equipment). For electrical power ratings on options,
see the product rating label or the user documentation supplied with that option.
WARNING!
To reduce the risk of personal injury, re, or damage to the equipment, do not overload the AC supply
branch circuit that provides power to the rack. Consult the electrical authority having jurisdiction over
wiring and installation requirements of your facility.
CAUTION:
Protect the SKM from power uctuations and temporary interruptions with a regulating uninterruptible
power supply (UPS). This device protects the hardware from damage caused by power surges and
voltage spikes and keeps the system in operation during a power failure.
When installing an SKM connected to more than one disk array, you may need to use additional power
distribution devices to safely provide power to all devices. Observe the following guidelines:
Balance the device power load between available AC supply branch circuits.
Do not allow the overall system AC current load to exceed 80 percent of the branch circuit
AC current rating.
Do not use common power outlet strips for this equipment.
Provide a separate electrical circuit for each device.
Electrical grounding requirements
The SKM must be grounded properly for proper operation and safety. In the United States, you must
install the equipment in accordance with NFPA 70, 1999 Edition (National Electric Code), Article 250, as
well as any local and regional building codes. In Canada, you must install the equipment in accordance
with Canadian Standards Association, CSA C22.1, Canadian Electrical Code. In all other countries,
you must install the equipment in accordance with any regional or national electrical wiring codes, such
as the International Electrotechnical Commission (IEC) Code 364, parts 1 through 7. Furthermore, you
must be sure that all power distribution devices used in the installation, such as branch wiring and
receptacles, are listed or certied grounding-type devices.
Because of the high ground-leakage currents associated with multiple SKM and servers connected to the
same power source, HP recommends the use of a power distribution unit (PDU) that is either permanently
wired to the building’s branch circuit or includes a non-detachable cord that is wired to an industrial-style
plug. NEMA locking-style plugs or those complying with IEC 60309 are considered suitable for this
purpose. Using common power outlet strips for an SKM is not recommended.
24
Installing and replacing hardware
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