What is the primary function of Time-Division Multiplexing (TDM) in telecommunications?

The primary function of Time-Division Multiplexing (TDM) in telecommunications is to transmit multiple signals over a single line. TDM achieves this by dividing the available transmission time on a single communication channel into time slots. Each signal or data stream is assigned a specific time slot, allowing for multiple signals to be transmitted in a sequential manner without interference. This method optimizes the use of the available bandwidth, enabling efficient communication between multiple sources and destinations without requiring additional physical channels.

By allocating time-based slots to different signals, TDM ensures that each signal can transmit its data uninterrupted during its designated time frame, making it a highly effective method for managing bandwidth and enhancing network capacity. This is particularly beneficial in systems where bandwidth is limited, allowing for the simultaneous transmission of voice, data, and video signals over the same medium.