When it comes to data transmission, optical fibers have plenty of advantages to offer when compared to conventional wire cables. Some of the most important ones are:
The protocols that govern data transmission over optical fiber are known as SONET or Synchronous Optical Networking. Here is taking a look at SONET optical network in some detail. What is SONET?SONET is a protocol
that has been developed by the American National Standards Institute. It governs synchronous digital transmission on optical media. When one is talking about this protocol in the global domain then it becomes known as SDH or synchronous digital hierarchy. SONET is characterized by:
SONET is the most widely used transmission technology deployed by large telecom carriers. It is denoted by different connection rates as well. The lowest or most basic rate as mentioned above is STS-1 where STS stands for synchronous transport signal. There are two ways to look at connection rates. On one hand you have the STS and on the other the OC or optical carrier. Thus, you get connection rates which can be described with different speeds:
Just to put things in a bit of perspective, an STS-1 connection rate is said to be equal to a T3 connection. SONET establishes optical carrier levels up to 9.95 gigabits per second or OC-192.
When one talks about network architecture, SONET relies on network that has the capability of transmitting data even if a portion of the network has failed. SONET uses the following network architectures:
SONET is a comprehensive standard which is capable of providing the foundation for global telecom networks well into the future. It has replaced many older telecom systems and protocols thanks to the advantages it offers. Due mainly to its bandwidth availability and flexibility, SONET can deliver benefits such as:
Considering the fact that telecom is one sector which sees a lot of rapid growth and progress, it makes sense to invest in something like SONET in order to remain relevant in the future too. It is the implementation of SONET that has made it possible for global telecom carriers to provide an interconnection between their already deployed fiber optic systems and digital carrier systems.
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