Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Synchronous Optical Networking
#1

The Synchronous optical network, commonly known as SONET, is a standard for communicating digital information using lasers or light emitting diodes (LEDs) over optical fiber as defined by GR-253-CORE from Telcordia. It was developed to replace the PDH system for transporting large amounts of telephone and data traffic and to allow for interoperability between equipment from different vendors.

The more recent Synchronous Digital Hierarchy (SDH) standard developed by ITU (G.707 and its extension G.708) is built on experience in the development of SONET. Both SDH and SONET are widely used today; SONET in the U.S. and Canada, SDH in the rest of the world. SDH is growing in popularity and is currently the main concern with SONET now being considered as the variation.

SONET differs from PDH in that the exact rates that are used to transport the data are tightly synchronized to network based clocks. Thus an entire network can operate synchronously, though the presence of different timing sources allow for different circuits within a SONET signal to be timed off of different clocks (through the use of pointers and buffers.) SDH was made possible by the existence of atomic clocks.

Both SONET and SDH can be used to encapsulate earlier digital transmission standards, such as the PDH standard, or used directly to support either ATM or so-called Packet over SONET networking. As such, it is inaccurate to think of SONET as a communications protocol in and of itself, but rather as a generic and all-purpose transport container for moving both voice and data.
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Popular Searches: networking austin, synchronous voltage sources, networking diagrams, optical networking ppt, in vehicle networking doc, distributed networking, what is monowhat is networking,

[-]
Quick Reply
Message
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  OPTICAL ANTENNA seminar projects crazy 2 2,158 09-05-2013, 10:40 AM
Last Post: computer topic
  Optical Satellite Communication computer science crazy 4 8,945 16-01-2013, 12:25 PM
Last Post: seminar details
  Electric Powerline Networking For A Smart Home project topics 23 11,967 31-12-2012, 04:01 PM
Last Post: seminar details
  Synchronous Voltage Source computer science crazy 5 4,454 31-07-2012, 10:49 AM
Last Post: seminar details
  SEMINAR ON OPTICAL FIBRE MEASUREMENTS computer girl 0 984 09-06-2012, 11:15 AM
Last Post: computer girl
  Home Networking computer science crazy 1 2,052 14-03-2012, 12:55 PM
Last Post: seminar paper
  Optical Burst Switching computer science crazy 1 1,700 03-03-2012, 10:06 AM
Last Post: seminar paper
  Magneto-optical current transformer technology (MOCT) computer science crazy 9 12,305 27-02-2012, 12:41 PM
Last Post: seminar paper
  optical space communication or Free-space optical communication(FSO) computer science crazy 3 5,136 15-02-2012, 12:47 PM
Last Post: seminar paper
  optical technology in current measurement seminarsense 3 5,958 14-02-2012, 07:16 AM
Last Post: shankara chary