Select the correct alternative from the given choices. An...

Select the correct alternative from the given choices. An Ethernet LAN has the capability of $100 \mathrm{Mbps}$. If Manchester encoding is used, what is the rate of signal change? (A) 20 million times $/ \mathrm{sec}$ (B) 200 million times/sec (C) 50 million times $/ \mathrm{sec}$ (D) 500 million times $/ \mathrm{sec}$

Select the correct alternative from the given choices.
An Ethernet LAN has the capability of $100 \mathrm{Mbps}$. If Manchester encoding is used, what is the rate of signal change?
(A) 20 million times $/ \mathrm{sec}$
(B) 200 million times/sec
(C) 50 million times $/ \mathrm{sec}$
(D) 500 million times $/ \mathrm{sec}$

Labs

Want to see this concept in action?

NEW

Explore this concept interactively to see how it behaves as you change inputs.

View Labs

Key Concepts

Signal Transition Rate

The signal transition rate refers to the frequency at which the signal changes state. In the context of Manchester encoding, since each bit results in one transition, the rate of signal change is directly related to the bit rate and can be twice that rate, which is an essential consideration when calculating the performance and bandwidth requirements of a communication system.

Data Rate versus Signal Rate

Understanding the difference between the data rate (the number of bits transmitted per second) and the signal rate (the number of signal changes per second) is crucial. For techniques like Manchester encoding, the encoding scheme leads to a scenario where the number of transitions per second is a function of the bit rate, impacting how the physical layer of a communication system is designed and operates.

Manchester Encoding

Manchester encoding is a digital encoding technique that represents each bit with a transition, ensuring that a change in the signal occurs in the middle of each bit period. This guarantees clock synchronization and reduces the issues associated with long strings of identical bits, improving the reliability of data transmission in digital communication systems.

Transcript

Please give Ace some feedback