COMPUTER NETWORKING

Detailed explanation-1: -In telecommunication, bipolar encoding is a type of return-to-zero (RZ) line code, where two nonzero values are used, so that the three values are +, −, and zero. Such a signal is called a duobinary signal. Standard bipolar encodings are designed to be DC-balanced, spending equal amounts of time in the + and − states.

Detailed explanation-2: -Line coding techniques can be broadly categorised into four types: unipolar, polar, bipolar, and Manchester encoding. The unipolar encoding uses a single voltage level, while polar encoding uses two voltage levels to represent the data.