Answer: Bus topology is, in networking, is the arrangement in which every computer or other device linked to the network via a single cable “backbone,” and all the nodes are directly connected to it. For such a network to work efficiently, it is critical to acquire a terminator.
Purpose of a Terminator
The primary purpose of a terminator is to prevent signal reflections in the cable. When data signals reach the end of the bus cable, they need to be absorbed rather than being reflected back along the line. Signal reflections can cause interference and result in data transmission errors, which severely impacts network performance. The terminator is designed to match the impedance of the cable, thus effectively absorbing the signals and preventing any reflection.
How Terminators Work?
A terminator is a resistor placed at both ends of the bus network cable. It functions by mimicking the impedance of the network cable which is crucial for stopping the signal at the end of the line. When a signal reaches the terminator, its energy is absorbed and dissipated, largely as heat, preventing any return along the cable.
Conclusion
Terminators are vital in bus topology networks to maintain data integrity and network stability. By correctly installing terminators at each end of the network backbone, signal reflections can be eliminated, allowing for smooth and reliable communication across the network.