A Serial Console Server with Power Redundancy Provides Out of Band Access When You Need It the Most

In out of band management applications, a serial console server (http://www.wti.com/c-48-serial-console-servers.aspx) provides a crucial avenue for communication with remote network elements when the main network is not available. Considering the importance of this function, one can quickly see how vital the serial console server can be, especially during a network emergency, even when that emergency is caused by a power supply problem at a remote network equipment site. When power supply problems bring down network devices at remote network equipment installation sites, a serial console server that includes dual power inlets and power fallback capabilities can often turn out to be a lifesaver.

The principle advantage of a serial console server in an out of band management application, is that the serial console server provides network administrators with a convenient way to securely communicate with network devices when normal communication via the primary network is not an option. When problems with important network elements at remote sites bring down network communication, a serial console server provides a quick, secure way to communicate with devices at the remote site in order to get them back on line again, without the cost, trouble and delays that are associated with a service call or truck roll.

These day, it’s pretty common for network elements such as servers, routers and firewalls to include power fallback and power redundancy features. The reason for this is clear; dual power inlets allow connection to both a primary power supply and a back up power supply, ensuring that important network elements will always be available, even when there are problems with the primary power supply. Given the diagnostic, troubleshooting and recovery functions provided by the serial console server and the usefulness of the serial console server when recovering from network outages, it follows that if the serial console server is being used to manage network elements that have power redundancy and fallback capabilities, then the serial console server should also have power redundancy and fallback capabilities too.

A serial console server with a dual inlet power configuration and automatic power fallback features helps to ensure that when the primary power supply at a remote equipment site goes down and takes other important network elements with it, the serial console server will still be available for network administrators to use when checking the status of the remote site and attempting to either restore other vital elements at the remote site, or switching over to back-up equipment when the primary device has been brought down by a power interruption.

Power fallback and power redundancy features are commonly used in many mission critical applications to ensure continuous service, even when there are problems with the primary power source. When you consider the value of a serial console server in detecting and correcting problems at remote network equipment installations, it’s plain to see that power fallback capabilities provide a serial console server unit with yet another capability that helps to make it such an important part of any out of band management application.

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