Laboratory
work 2
This
week I would like you to investigate the properties of Asynchronous Time
Division Multiplexing.
Use
the Internet to do this. You may confer with each other to achieve the results.
1.
What
is a T-1 carrier?
2.
How
many 64 Kbit/ sec voice (or data) channels can it carry simultaneously?
3.
What
is its maximum data rate?
4.
What
is the data rate of DS-1?
5.
What
is the data rate of DS-3?
6.
How
many DS-1s can a DS-3 carry?
7.
What
does PDH stand for?
8.
What
does SDH stand for?
9.
Where
is SDH used?
10. What does SONET stand for?
11. Where is SONET used?
12. What is the medium used for
transmission in both SONET and SDH?
13. What types of traffic are
the two ideally suited for?
14. Visit http://www.infowin.org/ACTS/ANALYSYS/GENERAL/ACTS97/GUIDE/annex1.htm
and make a note of the acronyms
15. What are the 5 concepts
behind ATM networks (see http://shell.rmi.net/~djcline/wp3net.html
)
16. Summarise each of these
concepts in YOUR
OWN WORDS