What is FTTP?
Fibre to the premises (FTTP) is a pure fibre connection – all the way from the exchange into a home or business. If offers speeds of up to 1Gbps (Currently only available up to 330Mbps).
How is this Service Delivered?
The FTTP network is laid out in much the same way as BTs existing copper network. First there is cabling from the exchange to a distribution point (similar to a cab) and it is then split from there directly to the customers premises.
Unlike normal copper cabinets the fibre distribution points are located underground so are not visible to people and are less susceptible to damage/abuse. They are completely passive and do not require any power. Their main purpose is to splice one strand of fibre from the exchange into 32 strands, each of which is then delivered to a customers premises.
What does FTTP look like?
Who can get fibre?
BT are currently rolling out FTTC and FTTP services throughout the country. They are not competing products meaning depending on the area you will only be able to get one or the other, you will not have the choice of both. This is being decided by BT as to how best to do it as it does depend on the exchange area. It’s thought that most line that can’t benefit from FTTC due to having direct cabling instead of a cab will benefit from FTTP. However there will also be entire exchange areas that will be FTTP enabled instead of FTTC.
There is no active line management on FTTP at all, it’s not a rate adaptive service and the speeds given are dictated by the product type and set on the OLT. With it being optical there is no possibility of line errors or degradation so DLM is not required. This also means latency is greatly reduced because as well as not having to modulate the data in any way, no form of error correction/interleaving is required