if the cable was long and already installed and can not be removed from it place, we can use 2 devices to test the cable if it's working or not.
we put one in an edge and the other in the other edge.
my project is to create a RJ45 cable tester ( straight through or cross over)
and i'm using 2 microchips ( master-slave)
the thing is i'm testing pair per pair of wires.
the concept that i thought ...