Which type of multiplexing is used to send and receive digital signals between connected devices?

• A. Frequency Division Multiplexing
• B. Time-division multiplexing
• C. Statistical Time Division Multiplexing
• D. Asynchronous Transfer Mode

Answer: (B)

Time-division multiplexing (TDM) is the correct choice for transmitting and receiving digital signals between connected devices. It works by dividing the channel into time slots, allowing multiple signals to share the same transmission medium without interference. Each signal is assigned a specific time slot during which it can transmit its data, ensuring that the digital information flows effectively without overlapping.

This method is particularly suitable for digital signals because it efficiently handles the discrete nature of digital data, allowing for precise control over when and how data is sent. TDM is commonly used in digital communications, such as in telephony and data networks, where multiple connections need to share a single physical communication link.

Understanding TDM is critical for applications involving digital transmission, as it maximizes utilization of available bandwidth and maintains the integrity of each signal being transmitted.