Communication systems
Sheet 1
1- Calculate the number of links used in telephony network using mesh
topology to connect 9 switching nodes?
2- Calculate the number of uni-selectors/ 2 motions selector used to
connect
a- 100 subscribers
b- 1000 subscribers
3- PABX switching system is used with 10 subscribers, Find number of
cross points, active cross points and number of idle cross points?
4- For CCITT calculate the spacing in each level?
5- In CCITT, M.G consists of number of S.G, Calculate the spacing
between each two S.G?
6- Find total number of cross points switching, active cross points in full
use, number of idle cross points in cross-point switching then
comment?