Useful that. It also shows a splitter node as the next step towards the customer.

I've no objection to "qualifying description" nodes, but the simple word itself is confusing. In this case even more so than I realised .

It's about time they decided to call exchanges some sort of node . After all, most now contain Multiservice Access Nodes. I wonder if anyone has any suggestions.

You need that other splitter node and the smaller one that is the manifold.

You have a manifold between for 8 to 12 customers (depending on size used)
You have a 32 way splitter before that to split out the PON wavelengths to feed multiple manifolds
Aggregation node is at the simple level a device that takes the feed from multiple splitters
Handover Node (exchange) where the fibre is linked to the various wholesale providers.

So feeding one customer from an aggregation node would mean a tray gets used, that would otherwise be feeding perhaps a cabinet full of customers. In short even with the agg node near you the architecture still requires a splitter and manifold.

The Point to Point architecture would be very different of course, with a dedicated fibre per customer from handover node to the premise.

Edited by MrSaffron (Mon 18-Mar-13 13:46:03)

perhaps we need a song

the aggregation node feeds the splitter nodes that feed the fibre DPs that feed the fibre to the ONTs.

I'm not sure there's any wavelength issues involved in the splitter, its just a 1 to N optical split (passive) isn't it ?

ok another question.

Since cabinets do not have their own "aggregation nodes", why does one need to be on a FTTC enabled cabinet, rather than just in a "aggregation node" area?

Probably because it acts as a very simple and easy to manage filter to restrict enquires to areas where the pre-requisite network has been built.

Also the network build is on going so adding fibre tubing for you and the other 7 or 11 houses that could share same manifold might fill ducting in a less optimal fashion.

Even if the agg node is in your doorstep, Openreach would still want to install a splitter and manifold.

Fibre on demand is not a custom build programme, but more a way of Openreach building a full FTTP network bit by bit, with those most keen to have it underwriting some of the cost, i.e. their share thus reducing the risk to an acceptable level to shareholders.

They might surprise you, but at the beginning of the roll-out if you do not fit the standard model I doubt you will see any leeway

yes it will be interesting to see if openreach are flexible.

When our cabinet was having its fibre connected last April I spotted the engineers with the 'manifold' stuck up on supports coming out of the adjacent manhole cover to the cabinet whilst they connected in the fibre. It's in an 'extra big' pit with two covers.

I may consider FTTPoD if I am feeling flush later this year, if only to replace this darn copper line which keeps developing intermittent HR Dis faults, and causing my FTTC connection to resynch whenever the phone rings. BT of course cannot detect a fault and threaten a £100 charge if they can't find a problem. As it's so intermittent I can't risk it.

Manifold? Small black object like the one on the left of this pole in Cornwall
http://blog.thinkbroadband.com/wp-content/uploads/20...

Or a grey set of trays, possibly hidden inside a water proof black container around 45cm long and 25cm diameter

Likely a fibre node on MOBRA arm

You mean http://www.farina1.com/fibre/wgc_media/source/IMG_44...