FSL III

In FTTB up to the subscribers building or appartment the medium used is OF and after that connections to the subscriber will be given through existing copper cable or Cat5 cable.In FTTC up to the curb the transmission medium used is fiber and after that the connections to individual susbcribers will be given through copper cable.

Advantages  of Implementing FTT-x Technology

1. People can enjoy enormous amount of bandwidth.
2. In the operator side also if people are enjoying variety of services means the bandwidth will be increased there by the ARPU(Average Revenue Per User) is increased .
3. Operators can provide its subscribers the new technologies thus they can compete with their competitors.
4. Enormous amount of bandwidth is available so it can be upgraded to incorporate future technologies.

FSL- II

FSL can be implemented in three ways.Fiber from the operator end to the subscribers home  FTTH(Fiber To The Home),Fiber from the operator end to subscribers building in which many subscribers are residing FTTB(Fiber To The Building).Fiber to operator end to a nearby place in which subscriber is residing FTTC(Fiber To The Curb).These are generally termed as FTT-X where x denotes the termination point.

FSL-Fiber in the Subscriber Loop-I

All the telephone exchanges,local exchanges will be connected or interconnected through optical fiber .Thus it enables to enjoy enormous amount of  bandwidth to the suscriber.But there is a limitation.ie  from the exchange to the subscribers home we are connecting with ordinary copper cable,which will have limited bandwidth.If we use ADSL2+ technology we could achieve a bandwidth of  24 Mbps for a distance of 5 km.or less.But if we use VDSL techonology the bandwidth we can achieve is about 52 Mbps.but the distance is limited to 1 Km.So all the subscribers should reside within the 1 km radius,which is not possible.Also at each and every 1Km we should place exchanges,which is also not possible.So we will lay optical cable from the exchange to the subscribers home or a very near point.This is called Fiber in Subscriber Loop.FSL.