Need Help? Get in touch, 24/7
We're committed to providing the best customer service in the industry.

Black Box Brand Product Support 
Local Calls: 0800 653 219                                  
International Calls: +61 3 9237 8100                                     

Or click "Talk With Us" in our top nav to chat with us or to have us call you.

Black Box Explains Alien Crosstalk

Alien crosstalk (ANEXT) is a critical and unique measurement in 10-GbE systems. Crosstalk, used in 10/100/1000BASE-T systems, measures the mixing of signals between wire pairs within a cable. Alien Crosstalk, in 10-GbE systems, is the measurement of the signal coupling between wire pairs in
different, adjacent cables.

The amount of ANEXT depends on a number of factors, including the promixity of adjacent cables and connectors, the cable length, cable twist density, and EMI. Patch panels and connecting hardware are also affected by Alien Crosstalk.

With Alien Crosstalk, the affected cable is called the disturbed or victim cable. The surrounding cables are the disturber cables.