Measuring or estimating Bit Error Rate (BER) of 2x Ronja Twister2.

Requirements

2 computers connected with (crossover) TP cable with IP networking set up between them
Twister2 crossover cable or cables
Tetrapolis Power Source or Inferno Power Source

Connecting all together

Connect the Twister2s together with the crossover cable or cables. Connect them into the "SIGNAL" sockets. The "SIGNAL" sockets are interchangeable. Then connect a Twister2 power supply into one of the Twister2, into the "POWER" connector.

ronjaping

If you have Linux where C programs can be compiled on one PC, then perform the ronjaping variant.

ping

Otherwise perform the ping variant.

Evaluation

BER should be under 10^-9. If it's worse, then something is wrong with the electronics.