The Power Transfer Switch – An Economical Alternative for Power Redundancy and Fallback

If you’re responsible for managing vital network elements located at remote equipment racks, then you’ve probably already had to deal with problems caused by unstable power supplies. When power goes out at a remote equipment rack, it often stays out until support personnel can travel to the remote site and deal with the problem in person. Power outages are much less of a problem if your network application already includes network elements with built in power fallback and power redundancy features, but what if your equipment rack also includes older, single-inlet devices that don’t offer the ability to fallback to a secondary power supply?

A power transfer switch provides the ideal solution for critical network applications that include older, single-inlet network devices, by providing single inlet devices with the same fallback and redundancy features that are found on dual-inlet devices. This saves both time and money by eliminating the need to replace existing single-inlet network elements with dual-inlet devices, and yet still provides single-inlet network elements with the same fallback and redundancy capabilities that are found on a dual-inlet device.

In a typical application, the power transfer switch is first connected to your primary and secondary power supplies, then, up to eight single inlet devices are connected to the power transfer switch. When the power transfer switch detects that the primary power supply is unavailable or unstable, the switch will automatically begin to draw power from the secondary power supply to ensure uninterrupted operation of the connected single-inlet devices.

A power transfer switch enables network administrators to save both time and money by eliminating or postponing the need to replace single-inlet devices in order to ensure power supply fallback and redundancy capabilities. A power transfer switch also provides additional benefits in that it eliminates the time and expense of configuration changes and code re-writes that might be required in order to set up a new dual-inlet device to perform the same tasks as the existing single-inlet device that it would replace.

In today’s network-driven business environment, vital network elements such as servers and routers are often called on to provide uninterrupted service 24 hours a day, all year round. Power fallback and power redundancy are just two examples of measures that many network administrators are taking in order to ensure that network access is always available when it’s needed the most, regardless of unstable power conditions at remote network equipment racks. A power transfer switch provides the perfect solution for network applications that demand continuous availability, yet are limited by budgetary concerns that rule out the replacement of every individual single-inlet device in the equipment rack. An intelligently deployed power transfer switch is usually the best solution for network administrators who desperately need power fallback and power redundancy, but don’t have the time or budget to immediately replace all single-inlet network devices throughout the network infrastructure.

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