12v 
==Area of Functional Test==

* Current zero load (>0A, <0.5A)
* Current Full load (>0.5A, <2A)
* flood ping test (<2ms should not miss a packet)
* rstp ring test (<10s)
* throughput test (should > 10MiB/s)
* 2 switch dual line test
* 3 switch ring test
* 4 switch ring test