A remarkably low inter-core crosstalk level
of below -62 dB was achieved in a 17.
The overall shield, by design, brings those alien crosstalk levels
to virtually zero.
If we change a stackup to achieve the impedance requirement, then the crosstalk levels also change.
If the dielectric material (thickness) is changed in the stackup, then the crosstalk levels between the traces change too.
While category 6A UTP cables can perform adequately with respect to alien crosstalk in an ideal installation or test environment, real-world installation practices and subsequent moves, adds and changes can deform UTP cable geometry causing increased alien crosstalk levels
Unique optical design technologies allows for a reduction of the mounting area size of the circuit board by 40% compared with our previous products, and achieves high optical output power and low crosstalk levels