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Hardware Installation Guide for Cisco Media Experience Engine 3000
OL-17000-01
Chapter 2 Preparing to Install the Cisco MXE 3000
Power Requirements
Power Requirements
Installation of this equipment 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).
Warning
To reduce the risk of personal injury, fire, 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 server from power fluctuations 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 more than one server, you may need to use additional power distribution devices to
safely provide power to all devices. Observe the following guidelines:
• Balance the server 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 the server.
For details about the Cisco MXE 3000 power requirements, see Appendix A, “Cisco MXE 3000
Hardware Specifications.”
Grounding Requirements
To ensure proper operation and safety, you must properly ground the server. In the United States, 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 certified grounding-type devices.
Because of the high ground-leakage currents associated with multiple servers connected to the same
power source, we recommend the use of a PDU that is either permanently wired to the building's branch
circuit or includes a nondetachable 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 the server is not recommended.