A Cost Effective Tool for Adding Power Redundancy to Single Inlet Devices

The task of adding power redundancy and power fallback capabilities to existing network equipment racks can be an extremely expensive proposition. The cost of replacing existing, single-power-inlet network elements with brand new dual-power-inlet devices can often run into the tens of thousands of dollars … and that’s just a conservative estimate. But it doesn’t necessarily have to be that way; a power transfer switch provides an economical power redundancy solution that allows you to provide the convenience and reliability of power fallback and redundancy switching to existing network elements, without the cost of replacement.

A power transfer switch allows network administrators to easily connect a secondary power source to single-inlet network devices, without the need for replacement or rewiring. Installing a power transfer switch is deceptively easy. First, the power supply cable from a single-inlet devices is connected to the power transfer switch, ad then the power transfer switch is connected to both your primary power source and a secondary power source such as a PSU. Once installed, the power transfer switch will constantly monitor the primary power source and then automatically switch over to the secondary power source if it determines that the primary power source has become unreliable. No set-up, re-programming or reconfiguration of the power transfer switch is required; the switch simply monitors the currently active power source and then immediately switches over to the secondary source when it detects that the active power source is unstable.

This effectively provides single inlet devices with automatic power fallback capabilities, and eliminates the expense and inconvenience of swapping out all of your single inlet devices for new dual inlet devices. A well-designed power transfer switch can support typical switchover times of eight to sixteen microseconds, and can also switch back to the primary power supply in the event that the power transfer switch determines that the primary power supply has become stable again. When selecting a power transfer switch for your network equipment rack, make certain to choose a product that offers multiple power outlets in order to allow the power transfer switch to support multiple single inlet devices and to eliminate the need to buy a separate power transfer switch for each single inlet device. If your equipment rack requires a combination of different types and ratings of power outlets, some power transfer switch products are available that include both C19 and C13 power outlets.

Power redundancy and power fallback capabilities are a vital element for any critical network application. Without power fallback and power redundancy capabilities, simple power glitch can deprive users of access to crucial network functions when they’re needed the most. A power transfer switch provides a simple, cost-effective means to add power fallback and power redundancy capabilities to existing single inlet network devices, without the cost and hassle associated with replacing single inlet devices with dual inlet devices.

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