Product specifications

COMMUNICATIONS
Sharp Electronics Corporation
Twisted Pairs
Twisted pairs (Figure 4) consist of two insulated wires twisted together. They are
specifically intended for carrying. Twisted pairs offer low noise pick-up and low noise
emission from a cable because it is a balanced line and because a balanced line
offers "common-mode noise rejection".
Balanced Line
A balanced line is a configuration where two wires are kept close together, usually by
twisting them (Figure 5). Conductors need to be the same length, the same size, with
a constant distance between them.
Figure 5
It should be noted that the signal, at any instant in time, is exactly the same but
opposite polarity on the two wires. Another way of saying that is, if you note the
signal voltage at any point of the cable, they should add up to zero.
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