FTTP connection

[#1]

I believe there are two kinds of connection used with FTTP.

CBT or Connectorised Block Terminal Fibre and Legacy Fibre.

I believe CBT has a 20% failure rate with the Legacy Fibre much more reliable.

How do I know which connection I have? I am assuming the former.

[#2]

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@Eggs wrote:

I believe CBT has a 20% failure rate with the Legacy Fibre much more reliable.

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Not sure where you're getting this information from but I question its authneticity. The current methods for FTTP installation will favour efficiency and reliability; it would make little practical sense for the failure rate to be so high.

[#3]

I'd be interested to know your source, too, @Eggs . A quick Google doesn't throw up any useful responses.

[#4]

@Eggs 

If you're fed by an overhead pole look at the pole to see if it's got a CBT hanging from it. You won't know if the feed is underground unless you see the chamber open.

If your FTTP (network) was installed in the past 3 or 4 years it's probably CBT.

Brian

[#5]

Around my way on the poles  OR are using CBTs and the alnets are using AFN (Aerial Fibre nodes) and ASN (Aerial subscriber nodes)

[#6]

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@Eggs 

I believe CBT has a 20% failure rate with the Legacy Fibre much more reliable.

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‘20% failure rate’ is a meaningless statistic.

What sort of failure? Is it referring to the loss of a working service? Or, is it the number of times that the installation technician has to re-terminate an optical connection, which is corrected at the time, etc.?

And then what is the times scale? Is that 20% per day, or per year or per lifetime of the service etc.?

To quote W S Churchill: “Statistics are like a drunk with a lamp post, used more for support than illumination”.

[#7]

@bmc , @Baldrick1  I doubt we'll get a response - the OP is a bit of a irregular visitor.😉

[#8]

https://community.bt.com/t5/Archive-Staging/No-Fibre-Connection-PON-light-Flahing/td-p/1826860

[#9]

That looks to be a BT users opinion from nearly 5 years ago, from probably the fairly early days of CBTs being introduced.  There doesn't seem to be anything to back up that on there either.

[#10]

@Eggs That topic is nearly five years old. When was your Fibre connection enabled, and how are you connected - underground or O/H cable?

[#11]

@Eggs So your 20% failure rate figure is a statement from a post years ago on the BT community forum by a "Recognised Expert" .. must be correct then? I don't think so.🙄

[#12]

My connection is via an overhead cable installed last year.

[#13]

So, you will be connected via a CBT, and as has been pointed out, that topic is from 5 years ago, when FTTP was in its infancy.

There have been gigantic leaps in technology since then.

[#14]

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@Eggs wrote:

https://community.bt.com/t5/Archive-Staging/No-Fibre-Connection-PON-light-Flahing/td-p/1826860

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This infers that this post is referring to early life failures made in the early days of fibre installations with inexperienced installers. 
This is very unlikely to bear any relevance 5 years down the line. This forum is certainly not indicating that there are any significant reliability issues.

[#15]

Exactly, @Baldrick1  😀