Cisco Systems WAVE594K9, 694 manual Understanding the Power Requirements

Chapter 2 Preparing to Install the WAVE-594 and WAVE-694

Understanding the Power Requirements

Understanding the 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 Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018

Caution Protect the WAVE appliance 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 WAVE appliance, you may need to use additional power distribution devices to safely provide power to all devices. Observe the following guidelines:

•Balance the WAVE appliance 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 WAVE appliance.

For details about the WAVE-594 and WAVE-694 power requirements, see Appendix A, “WAVE-594 and WAVE-694 Hardware Specifications.”

Understanding the Grounding Requirements

To ensure proper operation and safety, you must properly ground the WAVE appliance. 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 WAVE appliances 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 WAVE appliance is not recommended.

Cisco Wide Area Virtualization Engine 594 and 694 Hardware Installation Guide

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