| A | B |
|---|
| Signal Ground | A reference level of zero volts. |
| Shielding | Elminates signal loss. |
| Attenuation | Decrease in signal amplitude. |
| Impedance | Resistance to AC measured in Ohms. |
| Insertion Loss | Combined effects of attenuation & impedance. |
| Noise | Electrical energy makes data garbled. |
| Crosstalk | Transmits signals from one wire to another. |
| NEXT | Same end crosstalk. |
| FEXT | Crosstalk further away from transmitter. |
| PSNEXT | Cumulative effect of NEXT from all pairs. |
| ELFEXT | FEXT minus insertion loss of wire pair disturbed. |
| PSELFEXT | Combined effect of ELFEXT. |
