The BarnMini-06 is the optical changeover switch, which is very easy to integrate with the GPO devices that are found in many broadcast applications. A great advantage is the ability to provide its own power needed to drive the switch either as a stand alone or in the BarnMini frame with common PSU. The BarnMini-06 is often used in conjunction with the BarnMini-05.  This is a great combination to create advanced signal redundancy solutions.