New home and connecting to fibre etc.

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mattwnz

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#239466 19-Jul-2018 15:21

Currently got an electrician prewiring for fibre and network on a new home. I expect they should be following Chorus guidelines , which we have asked them to follow, which is shown at https://www.chorus.co.nz/help-and-support/wiring-broadband/home-wiring-contractors . One of the requirements is that a network cat 6 cable needs to be installed between the home distribution panel (where the ITP and ONT is) and the ETP, which 500mm of cable slack. However upon phoning chorus, they recommended having two of these cables, not just one. Anyone know what this is used for, and why they would want two? Guessing it is for potential future changes or upgrades .

Also is it better to use 20mm conduit pipe from the ETP to the ITP in the distribution cupboard, or a microduct?

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#2058886 19-Jul-2018 15:27

Butt covering

Fibre - ETP - Fibre - Internal box (ONT) -

1x Cat5e (6 pft) from ONT to router location

1x Cat5e from ONT to phone distribution point

Or they are referring to a simple draw line to pull stuff through the duct. But above is how I ran (2 internal cabinets)

wellygary

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#2058888 19-Jul-2018 15:31

"One of the requirements is that a network cat 6 cable needs to be installed between the home distribution panel (where the ITP and ONT is) and the ETP,"

That link you provided actually says 3

>Run the three Cat6 cables from the home distributor box to the ETP position

But this all seems bizarre, the fibre will terminate at the ONT, which you have said is in your Dist panel......

Why would you need to have a cable run to the ETP position, where there is no digital connections, only an optical join, and the fibre continues on to the ONT...

Multiple runs from the ONT to the panel I could understand, but the ETP just baffles me.....

mattwnz

20164 posts

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#2058896 19-Jul-2018 15:36

wellygary:

"One of the requirements is that a network cat 6 cable needs to be installed between the home distribution panel (where the ITP and ONT is) and the ETP,"

That link you provided actually says 3

>Run the three Cat6 cables from the home distributor box to the ETP position

But this all seems bizarre, the fibre will terminate at the ONT, which you have said is in your Dist panel......

Why would you need to have a cable run to the ETP position, where there is no digital connections, only an optical join, and the fibre continues on to the ONT...

Multiple runs from the ONT to the panel I could understand, but the ETP just baffles me.....

It does say at least one in the section above that.

Run at least one Cat6 cable plus one 20mm duct from the home distributor box to the ETP. Leave at least 500mm of cable slack at the ETP

But below it says three. That is bizarre. . But guessing it is butt covering in case of future features.

Behodar

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#2058899 19-Jul-2018 15:41

At a guess, it may date back to when Spark etc. were still providing voice over copper, so you'd have used the Cat6 for voice and the duct for fibre.

dt

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#2058902 19-Jul-2018 15:51

Doesn't the ONT have 4 ports on it? who knows what other services may run over it in the future.. since you're already paying for the labor to have them run spend they extra 10$ it will cost and just have them run the extra cables at the time

evnafets

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#2058909 19-Jul-2018 15:59

Yes the ONT has 4 ports on it.

But the ETP has no ports on it.

ONT and ETP are connected by fibre (which is the point of the 20mm duct I guess)
What is the purpose of the CAT6 running from ETP to ONT?

antoniosk

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#2058918 19-Jul-2018 16:23

evnafets:

Yes the ONT has 4 ports on it.

But the ETP has no ports on it.

ONT and ETP are connected by fibre (which is the point of the 20mm duct I guess)
What is the purpose of the CAT6 running from ETP to ONT?

I suspect you've discovered the power of editing :-)

You're right, there is nothing to be gained putting cat6 cable between the ETP and ONT.... I expect they meant to say drawstrings for the eventuality that a fibre break occurs and the lead needs to be replaced.

But, from the ONT to your first device... depends on whether they will be separated from each other or in the same big metal box. I've never been a fan of 'everything in the one box' but your experience may be different.

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Antoniosk

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mattwnz

20164 posts

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#2058925 19-Jul-2018 16:54

A draw wire makes more sense as that could pull through extra wire in the future. Can a draw wire and fibre be installed in the same conduit? Is the fibre protected by anything inside the 20mm conduit if something else was pulled in the same conduit?

cyril7

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#2058931 19-Jul-2018 17:09

Hi, you need two cat5/6 runs one for network (ethernet) and one for phone should it be derived from the ONT, as some ISPs do (spark for instance).

If it were me, I would run a 20mm duct and run in it 1x cat6 and 1x Opti5e which is a composite cat5e and 2xSM fibre, that way you can site the ONT at your home hub and cover off all eventualities.

Edit, if you do run the Opti5e ensure you leave 1.5m slack at each end, and at the hub remember it's going to feed through the back of the ONT so site it where that will be, also treat it with care it does contain fibre, and yes you are allowed to install it, and yes Chorus will use it assuming it's serviceable.

Cyril

mattwnz

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#2058932 19-Jul-2018 17:17

Thanks Should an electrician cabling for a home network and preparing for a fibre connection know all this? My concern is if the fibre breaks in the future, can they blow it back down the conduit, especially if it has other wires down it?

cyril7

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#2058933 19-Jul-2018 17:21

The blown fibre ends at the ETP, the Opti5e is only internal to the building and the conduit run in such a manner that it opti5e could easily be replaced should it break. As for sparkie knowing what to do, don't count on it, you may need to drive the process

Cyril

mattwnz

20164 posts

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#2059043 19-Jul-2018 21:08

Thanks. Is it to possible two have two draw wires in the conduit, one for initially pulling the fibre in, and the other draw left in for redundancy incase another fibre needs pulling through if the original ones breaks? Or will the draw wire get tangled with the fibre in the pipe? We really want chorus to install the fibre inside the house, so they are doing both the ETP one and the one to the ITP / ONT location, as it is part of the install they do and they will support it. When we spoke to chorus they did say that they normally blow it in between the ETP and ITP in the house, but sometimes they need to use a draw wire. So there seems to be quote a bit of conflicting info. Would be great if Chorus had a detailed video showing the process in more detail, and what new home owners need to make sure their electricians do.

Aredwood

3885 posts

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#2059046 19-Jul-2018 21:16

mattwnz:
Currently got an electrician prewiring for fibre and network on a new home. I expect they should be following Chorus guidelines , which we have asked them to follow, which is shown at https://www.chorus.co.nz/help-and-support/wiring-broadband/home-wiring-contractors . One of the requirements is that a network cat 6 cable needs to be installed between the home distribution panel (where the ITP and ONT is) and the ETP, which 500mm of cable slack. However upon phoning chorus, they recommended having two of these cables, not just one. Anyone know what this is used for, and why they would want two? Guessing it is for potential future changes or upgrades .

Also is it better to use 20mm conduit pipe from the ETP to the ITP in the distribution cupboard, or a microduct?

That looks like the old standard for use back in the copper days. No need to run cat6 between the ETP and ONT.

Have also seen microduct installed internally between the ONT and ETP on newer installs. Instead of using the opticat cable.

mattwnz

20164 posts

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#2059048 19-Jul-2018 21:20

Aredwood:
mattwnz:

Currently got an electrician prewiring for fibre and network on a new home. I expect they should be following Chorus guidelines , which we have asked them to follow, which is shown at https://www.chorus.co.nz/help-and-support/wiring-broadband/home-wiring-contractors . One of the requirements is that a network cat 6 cable needs to be installed between the home distribution panel (where the ITP and ONT is) and the ETP, which 500mm of cable slack. However upon phoning chorus, they recommended having two of these cables, not just one. Anyone know what this is used for, and why they would want two? Guessing it is for potential future changes or upgrades .

Also is it better to use 20mm conduit pipe from the ETP to the ITP in the distribution cupboard, or a microduct?

That looks like the old standard for use back in the copper days. No need to run cat6 between the ETP and ONT.

Have also seen microduct installed internally between the ONT and ETP on newer installs. Instead of using the opticat cable.

Thanks, yes that is what I read somewhere too. But if the fibre breaks in microduct, can another fibre be blown through the microduct, or does it have multiple holes to blow in more fibre in the future? Or can they just put the microduct in a 20mm conduit, and if the fibre breaks in the the future, and installer can use it as a draw wire for another microduct?

When speaking to Chorus today they were adamant that the cat 6 cable was still needed but they couldn't say why. But sounds like it was for something like copper.

Aredwood

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#2059071 19-Jul-2018 21:52

The microduct is exactly as the name describes. If the fibre breaks inside the duct, you first carry out any repairs to the duct itself if needed (if the duct gets cut for example) The old fibre is removed and a new fibre is blown into the duct using compressed air.

This is the beauty of microducts. As you are not forced to do a fibre splice at the point where the damage occurred. Fibre splicing only needs to be done at existing splice points.

Main thing is just to make sure that there are no kinks etc in the microduct. That would stop the fibre from being blown in. Or which would jam an existing fibre in the duct.

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