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367 posts

Ultimate Geek
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Topic # 223875 21-Oct-2017 17:07
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Hi all,

 

 

 

My dad was tidying up the cables in his structured cabling box and in the process he gently moved the twisted cable pairs coming from his dsl splitter (he literally just moved them 1cm to the left). Since then his sync speeds have dropped from ~14mbit to: 

 

Upstream line rate (kbit/s):
391
Downstream line rate (kbit/s):
1420
Upstream line attenuation (dB):
49.5
Downstream line attenuation (dB):
40.5

 

 

 

i.e. a pretty massive drop - clearly there is an issue somewhere.

 

See the attached for a picture of the splitter and the cables.

 

 

I suspect he has probably caused one of the punch connections to fail.

 

Should we simply remove the cables from the voice hub and then re push them in? we don't have the proper tool, so would be using a small screw driver tip to push them through. Is this advisable or not really? 

 

 

 

Also, see attach for the voice hub/splitter product guide (we have the vdsl splitter) - is the green and green/white wire in the above pic from DSL to Line2 (the very bottom connection) correct? I can't see this step on the instruction sheet, and I'm curious as to why it is here, I think its possibly an error?

 

Click to see full size

 

Prior to this sudden drop in speed I suspected that something was wrong with the splitter/wiring as with no (usually 2) phones plugged in the adsl sync speed increased to 20mbit... I thought the splitter seperated the dsl and phone lines? Could the extra cable mentioned above be contributing ?

 

 

 

Thanks heaps for your help.

 

 


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180 posts

Master Geek
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  Reply # 1887570 21-Oct-2017 20:45
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Splitter wiring:
As per Dynamix Data sheet 

 

Orange/White = to Line
Green/White = to Modem
Blue/White = to phone line

 

You look to split off an additional Green/white to a phone line at bottom of piccy, this should come from Blue/white ?


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  Reply # 1887666 22-Oct-2017 09:50
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remove the green/white from the DSL(GN) port to the line 2 in. it serves no purpose at all.

 

the correct tool will cost you $10-20 so its worth it to make sure you dont damage the connections on the ST2206

 

 

 

heres a good diagram of how it works

 

http://www.trical.co.nz/wp-content/uploads/2016/07/SIGNET-ST2206-Wiring-Set-up.pdf


 
 
 
 


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  Reply # 1887667 22-Oct-2017 09:54
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freakngeek:

 

 

 

You look to split off an additional Green/white to a phone line at bottom of piccy, this should come from Blue/white ?

 

 

no, if you wanted extra connections on line one they should come from the RJ45s on the right, there are 6 of them for line 1

 

if you wanted a second line it would go into the bottom connection directly, just like line 1 at the top.




367 posts

Ultimate Geek
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  Reply # 1887681 22-Oct-2017 10:58
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Thanks for your help. We removed the extra unnecessary green and green/white cable to line 2. In the process we saw that the green cable to the dsl connection had in fact broken just before the connection so we reinserted it and now the line is working correctly - the speed increased to 19mbit


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  Reply # 1887833 22-Oct-2017 18:41
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Good result

'That VDSL Cat'
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  Reply # 1887840 22-Oct-2017 19:17
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Given those speeds I'd make the move to vdsl...




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367 posts

Ultimate Geek
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  Reply # 1887855 22-Oct-2017 19:43
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Yeah that's the plan but the house is just outside the vdsl coverage area and has a downstream attenuation of 22. I'm not sure if it will support vdsl?

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  Reply # 1887900 22-Oct-2017 21:31
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is that before or after the wiring change? as you said it was ~14 and now its 19.


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  Reply # 1887903 22-Oct-2017 21:42
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Disconnecting that green loop to the line 2 input would have to have helped. THat would have all the second pairs in all the phone outlets unterminated across the DSL pair, so basically back to performing like no splitter at all.





Richard rich.ms

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  Reply # 1887937 23-Oct-2017 07:16
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You should be OK for a VDSL connection

Linux




Ex JohnR VodafoneNZ 17 years 4 days

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  Reply # 1888134 23-Oct-2017 16:04
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Maybe they should change those instructions to be clearer that the "line 2" is only used for a 2nd incoming telecom line, not for connecting the 1st line.





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