FTTH to a Private Home Installation - SADV - Progress Documented

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Bad workmanship!
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Pipes not all over or all under existing infrastructure!

Damage to that black Pipe/electric armoured cable? Existing water pipe also at the same point? Future nightmare waiting for someone.
 
It does look a bit suspect, this is about two blocks up from my street.


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That white stuff is called a duct. In this case looks like (and I see in your one pic it even says it) a two way duct. Not trunking. Nearly everything in the ground will be a duct (or sometimes a sleeve) never trunking.
 
pinball wizard said:
That white stuff is called a duct. In this case looks like (and I see in your one pic it even says it) a two way duct. Not trunking. Nearly everything in the ground will be a duct (or sometimes a sleeve) never trunking.
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@pinball wizard Thank you, I will change the descriptions to micro ducts. What is the grey cable for?? Do we know if this is P2P or GPON?? Thanks for your input.
 
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SHANRSA said:
@pinball wizard Thank you, I will change the descriptions to micro ducts. What is the grey cable for?? Do we know if this is P2P or GPON?? Thanks for your input.
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Well it is all "ducting" for fibre cables. Because there are so many, it looks like one of the ducts is for the main backhaul fibre reticulation running between main distribution points or cabinets, with the other smaller ducts for the fibre distribution cables from those main cabinets to clusters of houses in a typical star network configuration.
It is not possible to just by looking at the ducts provided, to know what the fibre core count is going to be or what technology will ultimately be provided for.
For that you will have to see what the distribution cabinets look like and if any of them are equipped with monitoring. Power implies active components normal of associated with AON. No power implies passive splitting which is typical for GPON.

In that case, it is possible that one of those ducts is in fact a power feed cable.
Another possibility is that one of the ducts is a signalling copper cable for alarms and security monitoring.
I have some samples somewhere. I will see if I can find them and post a photo.
 
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The micro ducts have been installed at my end with these duct junction points/access chambers. The grey cable it seems connects from the access chamber to the street boundary box.

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Geoff.D said:
Well it is all "ducting" for fibre cables. Because there are so many, it looks like one of the ducts is for the main backhaul fibre reticulation running between main distribution points or cabinets, with the other smaller ducts for the fibre distribution cables from those main cabinets to clusters of houses in a typical star network configuration.
It is not possible to just by looking at the ducts provided, to know what the fibre core count is going to be or what technology will ultimately be provided for.
For that you will have to see what the distribution cabinets look like and if any of them are equipped with monitoring. Power implies active components normal of associated with AON. No power implies passive splitting which is typical for GPON.

In that case, it is possible that one of those ducts is in fact a power feed cable.
Another possibility is that one of the ducts is a signalling copper cable for alarms and security monitoring.
I have some samples somewhere. I will see if I can find them and post a photo.
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In the words of R Kelly: "I'm out". Mr D will now answer all your FTTH queries. Call me Jon Snow.
 
pinball wizard said:
That white stuff is called a duct. In this case looks like (and I see in your one pic it even says it) a two way duct. Not trunking. Nearly everything in the ground will be a duct (or sometimes a sleeve) never trunking.
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That is the terminology of the professionals and correct lol

I am not in the trade so i apologize, they are the housing for the fibre
 
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The trenches are now being filled up. Sifted sand is used to cover up the micro ducts and then they place this plastic strip across the trench before covering it up fully.

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SHANRSA said:
The trenches are now being filled up. Sifted sand is used to cover up the micro ducts and then they place this plastic strip across the trench before covering it up fully.

View attachment 901316
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Sounds like a reasonable idea. But a gardener is typically going to take no notice at all. And then last time I looked, a fork and a spade can't read.
 
Geoff.D said:
Sounds like a reasonable idea. But a gardener is typically going to take no notice at all. And then last time I looked, a fork and a spade can't read.
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@Geoff.D this trenching business is a bit hit and miss but hopefully with this being on the verge nobody digs to 600mm and strikes a duct. I think the sign in the trench is to discourage potential cable thieves.
 
SHANRSA said:
@Geoff.D this trenching business is a bit hit and miss but hopefully with this being on the verge nobody digs to 600mm and strikes a duct. I think the sign in the trench is to discourage potential cable thieves.
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Cable thieves don't typically dig up cables, but yes I guess it might help a bit. The real reason is a warning of the dangers (health) and an attempt to get people who do end up damaging cables to be responsible and report it so that it can be fixed quickly, instead of simply closing up the hole and running away. Hopefully, the neighbourhood residents will play their part as well.
 
I am going to be searching for the cable jetting points for the fibrehood install to try and document the cable floating in the new week. Can anyone clarify what size fibre cable is normally used for FTTH. Considering that the microduct inside diameter is 5mm I imagine it will be smaller. I will still need to clarify the network structure GPON/P2P. I see that two microducts were laid so this could be for network redundancy or just future proofing for advances in fibre cable and then floating new cable if the need arises. Lots of questions which I am hoping to answer in the next few weeks.
 
SHANRSA said:
I am going to be searching for the cable jetting points for the fibrehood install to try and document the cable floating in the new week. Can anyone clarify what size fibre cable is normally used for FTTH. Considering that the microduct inside diameter is 5mm I imagine it will be smaller. I will still need to clarify the network structure GPON/P2P. I see that two microducts were laid so this could be for network redundancy or just future proofing for advances in fibre cable and then floating new cable if the need arises. Lots of questions which I am hoping to answer in the next few weeks.
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Depends entirely on the design. Typically, Openserve seems to go for 48, 24 and 12 core on backbone FTTH, and then a 2 , 4, 8 core to houses. The cables are much smaller in dia than you would imagine because there is very little armouring required when in ducts.
Will be interesting to see what SADV planning philosophy is in this regard.
 
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Geoff.D said:
And under-the-road/driveway drilling does not perchance end up hitting a rock or going through some or other service.

Any idea what they are planning to do at the boundary fence? Are they terminating the UG fibre in a box on the fence? What are you then going to do from there to the house? Are they allowing you to influence where they put those boxes and maybe get them to take the fibre direct to a box on your house instead?
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@Geoff.D We have had 2 homes water pipes damaged and today the entire street was without electricity for an hour when the driveway mole impacting damaged a cable so your predictions were spot on.
 
SHANRSA said:
@Geoff.D We have had 2 homes water pipes damaged and today the entire street was without electricity for an hour when the driveway mole impacting damaged a cable so your predictions were spot on.
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It is a unfortunate part of the game, if the city plans and dept are correct there would be much less hits.

But they are opening ground where services lay and it is bound to happen, the value of the infrastructure upgrade far outweighs the limited disruptions for the time they install.
 
VettieOriginal said:
It is a unfortunate part of the game, if the city plans and dept are correct there would be much less hits.

But they are opening ground where services lay and it is bound to happen, the value of the infrastructure upgrade far outweighs the limited disruptions for the time they install.
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Agreed, inevitable growing infrastructure pains.
 
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