Drop wire & Drop fibre

Is there a document which gives the dimensions of the various types of drop wire and drop fibre(?) ideally with images?

I am guessing that not all are round.

Many thanks.

Cheers!

There are various different manufacturers of the current batch of fibre/copper hybrid cables.

Hi Clive

The hybrid cable to my house has a 6mm round fibre cable with 2.5mm round copper pair cable moulded alongside. The overall dimension as you would imagine is 6mm x 8.5mm.

If your interested in what needs to go through your wall, it is not this cable, it is a smaller diameter fibre only cable that is installed from the inside out through what seems to be called a 'straw' which is 8.2mm external and 6mm internal smooth bore conduit tube.

Andy

Hi Andy

Thanks for that info. I guess that your telephone/FTTC broadband came in via an overhead
drop wire.

Leads to a couple of questions. Where the outside fibre meets the inside fibre, is this where they connect the new 2.5 mm copper pair to your existing telephone wiring? Gel Crimps?

Is there any sign of steel strengthening wires within the hybrid fibre/copper cable? With normal drop wire, the steel wires, which are both stiff and sharp, have a light insulation so overall diameter is similar to the insulated copper conductors.

Cheers!

The inside and outside fibre meet in the CSP (customer splice point)

Where the copper meets the old lead in is dependent on a variety of things, but is often done in an above ground closure at the eaves.

May I ask Clive why you seem to be somewhat obsessively fretting over all these details ?

And as you know Openreach have had different policies over time with CSP-less direct cable installs too. As mine is direct cabled, sans CSP and the outer sheath is stripped and run to the ONT.

Maybe AM is writing a book on Openreach outside plant

Good question Zarjaz!

I have a inquisitive nature when it comes to technical matters. Based I guess on not wanting to be in the position of, "I wish I had known that!". As has been so often the case.

Cheers!

I’m just happy he hasn’t drifted into ‘ADSL Max - like’ obsession.

😂

Heck! My cover name has been exposed!

Cheers!