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Standard User pcoventry76
(knowledge is power) Sun 29-Sep-13 13:49:12
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Re: Noise on the line


[re: MrSaffron] [link to this post]
 
I've only ever seen one that was tidy and it was for EO lines on a very large exchange - i've seen many a mdf mess and I've even had my own line in the past knocked out of service only to find my pair had been disturbed.

I used to think a lift and shift was a massive job..

FTTC will reduce that anyway I assume?

"

Edited by pcoventry76 (Sun 29-Sep-13 13:58:01)

Standard User pcoventry76
(knowledge is power) Sun 29-Sep-13 13:57:02
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Re: Noise on the line


[re: Loading] [link to this post]
 
Well, the mdf's I saw (Main Distribution Frames - Where your line and broadband go to when they get to the exchange) were a mess so any knocking of wires could cause a problem. This is ADSL right? If it is then it stops at the MDF but if it's LLU or partial LLU then your tie pair(s) will be jumpered onto the LLU kit as well so I assume that would mean you have 2 possible places the fault is occurring.

My knowledge of exchanges is a bit rusty. Haven't been in one since 2009 but the mdf connections I saw were very similar to the flat terminals on a chunky square battery. You know the ones where you just put the connection over it? Other are literally twisted together and then put on. So could be easy to loosen the connection and not know about it if you're working on another line and they are near eachother.

Someone with more knowledge will tell you for sure.

"
Standard User Loading
(learned) Sun 29-Sep-13 18:29:09
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Re: Noise on the line


[re: pcoventry76] [link to this post]
 
I am with bt adsl so no llu how is the so does the line just connect from the cab to the mdf?


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Standard User pcoventry76
(knowledge is power) Sun 29-Sep-13 22:53:43
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Re: Noise on the line


[re: Loading] [link to this post]
 
Yes from your cab to the MDF in the exchange - your line and broadband are basically 2 wires that are either placed on their own little peg or twisted onto one but i've only ever seen that once..

It is possible one has been knocked creating a lose connection but it could also be water getting into any boxes outside. If you have overhead lines water getting into the top of a pole is very common. I dealt with a lot of faults due to water when I worked at Plusnet

So BT need to investigate. As an EU (End User as ISP's tend to call customers) you are only responsible for the NTE5 master socket inwards. Anything from that and including the test socket (behind the faceplate) is the responsible of BT Openreach to sort.

"

Edited by pcoventry76 (Sun 29-Sep-13 22:55:40)

Standard User Loading
(learned) Mon 30-Sep-13 07:01:58
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Re: Noise on the line


[re: pcoventry76] [link to this post]
 
I'll get them to check the e side and the mdf
Administrator MrSaffron
(staff) Mon 30-Sep-13 09:10:45
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Re: Noise on the line


[re: pcoventry76] [link to this post]
 
http://www.telephonesuk.co.uk/exchange_inside.htm For avoidance of doubt.

ADSL via BT Wholesale DOES NOT STOP at the MDF, it is jumpered onto the DSLAM in exactly the same manner as SMPF LLU services.

Andrew Ferguson, [email protected]
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Administrator MrSaffron
(staff) Mon 30-Sep-13 09:11:56
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Re: Noise on the line


[re: Loading] [link to this post]
 
General rule if the fault is in the exchange or MDF tendency is that it affects the upstream the most.

A poor joint somewhere, can affect attenuation and all the other symptons.

Andrew Ferguson, [email protected]
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User pcoventry76
(knowledge is power) Mon 30-Sep-13 14:30:49
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Re: Noise on the line


[re: MrSaffron] [link to this post]
 
Hi Andrew,

Thanks - sorry my bad I was tired when I typed that.

How could I forget the Digital subscriber line access multiplexer!!

<facepalm>

"
Standard User virgil7
(newbie) Mon 30-Sep-13 16:22:46
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Re: Noise on the line


[re: Loading] [link to this post]
 
Excuse me for butting in on this thread butt ... I have noise on my line too, I've had 2 Openreach engineers check it out o'er the years and the last one a couple of months ago cured the problem - at the exchange.

It's started again frown really noisy this time and of course it's knocked my download speed down to a pathetic 1.41Mbps whereas it's normally about 3-4Mb.

The thing is, the crackling noise doesn't begin straight away, but say, today it started after being on the dog 'n bone for 3 minutes, and it usualy starts with a 'click' sound.

I live out in the sticks with overhead copper/aluminium cable, and I'm 2 miles from the exchange and 1 mile from the cabinet sauvignon, I was just a'wondering if there's any engineer out there that has any ideas on this PITA problem.

I've plugged into the master socket AND tried different filters etc.

Thanks.
Standard User Loading
(learned) Mon 30-Sep-13 17:32:17
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Re: Noise on the line


[re: MrSaffron] [link to this post]
 
The upstreams noise margin is lower or could that still be the bad joint somewhere?
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