In reply to a post by dect:

Tagged to last post

Has anyone come across or worked with the CommScope FHD-H01V fibre OH/UG connectorised cable used by Openreach? I came across it today and it was a lot flatter than I had expected with what looks like a single external strengthen along its length.

It has 2 strengtheners in it, one at either side of the fibre. It's not all that different to the Corning ROC drop cable.

In reply to a post by troublegum:

It has 2 strengtheners in it, one at either side of the fibre. It's not all that different to the Corning ROC drop cable.

Thanks

When I looked at the specs online tonight they didn't look like what I saw today as the online specs showed a single flattish jacket with both the dielectric strengtheners and the fibre sandwiched between them but what I saw today was an extra shotgun something on one side of the main jacket which reminded me of the old copper/fibre hybrid cable so I assumed it was a strengthener as it went all the way into the connector at the CBT end which I didn't think was the case on the original copper/fibre cables.

Edit: Just found some newer specs that show it as I saw it today where one strengthener is in the main jacket and one is in the shotgun bit

Edited by deleted (Fri 28-Jan-22 22:30:07)

There no main jacket and "shotgun" bit. Both halves are the same size, it's just that the join is offset

If you look at the cable profile in the following link, you will see the groove on top is to the left. However on the underneath, the groove is to the right (diagonally opposite ).

https://www.commscope.com/globalassets/digizuite/254...

It pulls apart into 2 equal pieces if you cut it diagonally across the grooves.

In reply to a post by troublegum:

There no main jacket and "shotgun" bit. Both halves are the same size, it's just that the join is offset

If you look at the cable profile in the following link, you will see the groove on top is to the left. However on the underneath, the groove is to the right (diagonally opposite ).

https://www.commscope.com/globalassets/digizuite/254...

It pulls apart into 2 equal pieces if you cut it diagonally across the grooves.

Thanks for explaining, I only saw one side so didn't realise there was a groove diagonal on the other side.

In reply to a post by Pheasant:

What OH cable did OR use for CSP-less installs when they were doing them?

They used the hybrid fibre/copper cable. The fibre on this cable is round and could then have a field fit connector on the end of it. The current flat cables (Corning/Commscope) are fibre only cables that are totally different to the original hybrid ones.

Thanks for confirming.

In reply to a post by TheInstaller:

The current flat cables (Corning/CommScope) are fibre only

I don't know what they are like to work with but in my opinion the flattish fibre cables (CommScope 3mm x 6mm) must be less flexible than the original round fibre cables. There must be a good reason why the flattish cables are used these days.

I'm no BT (...sorry Openreach) engineer, but I'm sure I read something somewhere about superior 'noise' in certain high wind prone areas - the cable is less likely to suffer from turbulence induced hum (or something like that). Also if this is a dual OH and UG cable I believe that the flatter cables are superior to their circular brethren in ducting as they pull better and fish better...or maybe its the red wine talking and making up all this stuff

Clipping the flat fibre cable down a wall from the eaves and then looping round under a CSP can't be easy with a flat cable compared to a round cable.

Very true.

Cleating round (say) a doorframe is even harder to do neatly.

The new cables do strip MUCH easier though.