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14 posts

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# 217857 15-Jul-2017 16:19
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Hi

 

Looking for some advice please.

 

Our street has been cabled for UFB.  It has overhead power and telephone lines so the fibre has been strung along the poles and black boxes have been fitted to the poles.  The crew were also digging up the berm and there is now a black plastic marker at one of our boundaries, which I believe indicates a buried microduct for blowing fibre through. So it appears we may have the choice of an overhead or an underground installation.

 

When I emailed Chorus about it, they said: "Every house is different but we follow the path of where most utilities go for example, if your phone, power, gas are overhead, then fibre will very likely be overhead. You will know more when you place an order. If your lines are overhead, you can request an overhead to underground conversion through your provider."

 

Going overhead would be the easy choice but probably not a good long-term solution.  If we chose that, would the installers mount the ETP on the underside of the soffit, where the telephone line comes in, and run the fibre through the ceiling space to wherever we wanted the ONT and router?

 

If we chose to go underground, it wouldn't be a very long run -- about 3.5m along the berm from the marker to a point where it would head into the property, then only 2m to the garage wall but it would need to go under a block wall. I've seen some horror pictures of outside cable runs. Would it be best if I trenched under the wall myself beforehand, or would the installers do this okay?

 

Continuing the underground option, the ETP would mount on the outside of the garage wall.  And, as with the overhead option, we would want the ONT and router in the middle of the house but it might be a tricky run as we have a low profile roof and it would be a 20m run. Would it be better to split the ONT and the router, eg. to put the ONT in the garage and run my own ethernet cable to where I want the router in the middle of the house, rather than hoping the Chorus techs will run the fibre to the middle of house and not take any ugly shortcuts?

 

Finally, I read somewhere that if you have the choice of overhead or underground, they'll do overhead by default and you need to pay more for underground.  Is that true?

 

Thanks - Simon


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  # 1822948 15-Jul-2017 16:48
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If your telephone lines are overhead then your fibre will be overhead.

 

If you want fibre to go underground, ask your ISP for OHUG when you order fibre. There will be costs involved.

 

If you want to do your own digging/installing that will make the Chorus tech's job easier, it will also mean you can control the quality of the install.

 

Here's the standards for the lead-in pipe.

 

For the inside you can run either ethernet cable as you suggested, or you can put in a conduit inside your house to lead to where you want the ONT.


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  # 1822953 15-Jul-2017 16:59
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DarkShadow:

 

If your telephone lines are overhead then your fibre will be overhead.

 

 

This is not entirely correct. When a street is built out each property is going to be either be an underground or overhead install and it really depends on the network build for the street.

 

My house for example is an underground UFB install despite the copper being an overhead lead-in. All Chorus copper is on Chorus poles on the other side of the street however UFB is a mix of both overhead and underground to avoid any aerial trespass occurring from existing Chorus poles. 

 

If the black marker is for your property then underground has been planned for your property.


 
 
 
 




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  # 1823042 15-Jul-2017 23:08
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Thanks for your replies.


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  # 1823101 16-Jul-2017 08:44
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 Im in a similar postion as sbiddle, all copper is run underground down the street, but it comes up and goes up poles and is delivered to houses via overhead. we dont have fiber yet and i would assume they would run the fiber underground as that's how the copper is run.

 

i would want an underground install as we are building about the time fiber is due and we are going to eliminate all overhead services, but i suspect they will do overhead ones in the area.


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  # 1823103 16-Jul-2017 09:03
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Jase2985:

 Im in a similar postion as sbiddle, all copper is run underground down the street, but it comes up and goes up poles and is delivered to houses via overhead. we dont have fiber yet and i would assume they would run the fiber underground as that's how the copper is run.


i would want an underground install as we are building about the time fiber is due and we are going to eliminate all overhead services, but i suspect they will do overhead ones in the area.



Our street has the same configuration, with copper underground but then running up poles and delivered (mostly) overhead to houses. The fibre has been installed in a similar fashion - underground, but with the black box that splits off to each house (not sure of the terminology) mounted up the pole.

For the more recent builds that have do have underground installs, the copper or fibre runs back down the pole into the underground conduit. Would have loved to have gone that route myself, but too much concrete and retaining wall in the way.

During the storm this week, our fibre has actually wrapped itself around the overhead copper and pulled out of the bracket that secures it to the pole. Underground would be more effort in the install, but avoids damage like this, and is a neater install.

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  # 1823118 16-Jul-2017 09:35
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Most people don't realise that the vast majority of the existing copper network is underground, and likewise the vast majority of the Chorus UFB network is also underground. Even in areas where poles and overhead lead-in's are the norm, the actual infrastructure is mostly all underground simply popping out of the ground to pillars on poles.

 

This is very different to areas such as Northland and Taranaki where (with the exception of areas where power is underground) the vast majority of the UFB network is overhead as it was built by the power lines companies.

 

 


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  # 1823136 16-Jul-2017 10:19
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Underground is tidier and will generally offer better protection against the weather/elements. If you opt for underground please be aware that any Chorus subbies will most likely directly bury the fibre only a spade's depth down.

 

If you're prepared to do most of the donkey work yourself (dig a trench, install conduit etc) you'll end up with a better install.


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