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4 posts

Wannabe Geek


Topic # 185274 16-Nov-2015 19:09
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Just a quick question-

This is how both ends of an approx 20m Cat6 cable were wired by the Fibre installers: 

1: Wht/Blue, 2: Blue, 3: Wht Brown, 4: Brown, 5: Green, 6: Wht green, 7: White Orange, 8: orange

I've had no problems with internet after 2 weeks, which is how long it took me to find this little oddity.  Any thoughts on if this is a good idea to leave as is? 

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Ultimate Geek
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  Reply # 1429147 16-Nov-2015 19:21
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It would work like that provided it is the same on both ends. 

However I would not leave it like that. The way the wire is twisted is to lower the noise on the cable. However this requires it to be correctly terminated to work correctly.

It would be best to contact @chorusnz on here or wait for them to respond on this thread as the installer needs to be told this is incorrect and should really fix it.




Geoff E

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  Reply # 1429148 16-Nov-2015 19:21
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well that does seem a little weird.

it will still function as its direct replacements, be it subpar... but there is a reason for standards...




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Wannabe Geek


  Reply # 1429159 16-Nov-2015 19:39
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geocom: It would work like that provided it is the same on both ends. 

However I would not leave it like that. The way the wire is twisted is to lower the noise on the cable. However this requires it to be correctly terminated to work correctly.

It would be best to contact @chorusnz on here or wait for them to respond on this thread as the installer needs to be told this is incorrect and should really fix it.


Yeah, I still have the contact details for the installer, think I'll be calling them tomorrow. 

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  Reply # 1429208 16-Nov-2015 20:29
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The second data pair (3 Wht Brown / 6 wht green) are not twisted together in the cable and so will be causing / receiving cross talk interference. They need to be the same color pair.




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  Reply # 1429213 16-Nov-2015 20:36
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LOL - was this actually Chorus?

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  Reply # 1429216 16-Nov-2015 20:40
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dimsim: LOL - was this actually Chorus?

Was going to comeback about enable and LFC with another post afterwards but OP responded before I could fire it off.

I know the chorus guys on here are good. Not sure LFC or Enable are actually on the forums here.




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  Reply # 1429220 16-Nov-2015 20:43
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dimsim: LOL - was this actually Chorus?


Thats what I was going to ask - as the chorus fibre techs dont wire up plugs but terminate any additional Data cableing on to RJ45 sockets to 568A as marked out on the back of the Jacks

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  Reply # 1429228 16-Nov-2015 21:00
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InstallerUFB:
dimsim: LOL - was this actually Chorus?


Thats what I was going to ask - as the chorus fibre techs dont wire up plugs but terminate any additional Data cableing on to RJ45 sockets to 568A as marked out on the back of the Jacks


precisely - it would be a major fubar for a comms tech to ignore both 568a and 568b

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  Reply # 1429233 16-Nov-2015 21:07
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Yeeesh!  I guess with the rush to get UFB out faster they are employing people who have embelished their CVs and skills a little!

Wonder how much money is spent on return visits to customers to fix stuff ?



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  Reply # 1429240 16-Nov-2015 21:15
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InstallerUFB:
dimsim: LOL - was this actually Chorus?


Thats what I was going to ask - as the chorus fibre techs dont wire up plugs but terminate any additional Data cableing on to RJ45 sockets to 568A as marked out on the back of the Jacks


Are you really that surprised though that this could be happening?

Their seems to be a large number of techs working on the networks (copper & fibre) that really just have no idea what to do. It seems on a weekly basis I am needing to explain to a technician how to get a vdsl circuit connected, or how to diagnose a dsl fault (and not even at a high level, as in, have you checked the filter is wired correctly, have you changed distribution pairs etc). It's getting really really bad.
I don't know if the old school, skilled guys have either left or been shifted to higher management positions but they are certainly not working on the network. I think the codes system has a hell of a lot to do with it but that's a discussion for another day.

Anyway, OP, the cable has been wired strange by someone who is either colour blind or just plain stupid. Frankly, in a home situation with only 100Mb to 1Gb speeds over a short distance it isn't going to make any appreciable getting it re-wired to 568 specs so isn't worth the hassle of getting someone from Chorus to come back (who won't know that they are doing anyway) and re-wire it.

Edit: Oh and just for the record to balance out the Chorus comments....
Enable - Really good installs, seem to have the consents process nailed and they make churning existing connections really simple too as they liven up port 2 on the ONT with the new provider so there is no worries about down time.
UFF - Installs have been fine. Bit slower with consents. Churning has been an absolute nightmare with them, churns happen before the RFS and nothing is ready so often ends with a few hours of down time.



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Wannabe Geek


  Reply # 1429242 16-Nov-2015 21:17
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Not Chorus, was a subcontractor. Guy had been on job 2 months, previous experience in other construction field.  Nice guy, in a bit over his head tho. 

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  Reply # 1429259 16-Nov-2015 21:49
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Vervuel: Not Chorus, was a subcontractor. Guy had been on job 2 months, previous experience in other construction field.  Nice guy, in a bit over his head tho. 


Chorus dont have staff out in the feild (except to do QA) - The installers (like me ) are either employees or subcontractors one of the service copmpays that sub-contract to do the install work from one of LFCs (Local Fibre Company) of which Chorus one. to the OP - Which citey/town are you in ?



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Wannabe Geek


  Reply # 1429529 17-Nov-2015 11:58
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I'm in New Plymouth, fwiw

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  Reply # 1429602 17-Nov-2015 12:49
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Vervuel: I'm in New Plymouth, fwiw


So nothing to do with Chorus.

You will need to be speaking with UFF instead, if that's the way you wish to go.

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