DSL Issues: (Was: Best DSL Modem?)

Mon Jun 2 17:53:12 UTC 2014

Thanks for the pointer. They have interesting stuff, but no DSL splitters
- at least on their web page.

I'm currently trying these folks, who are in Ottawa:

http://comtestnetworks.com/contact-comtest-networks/

Peter

> Try ahttp://comtestnetworks.com/contact-comtest-networks/ company called
Norelco Safecam.
>
> My office buys most of our network cabling and jacks from them.
> On Jun 1, 2014 8:47 PM, <phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org> wrote:
>
>> For those who are interested in my adventures getting DSL functional
>> again:
>>
>> I inspected the phone wiring at the point where it enters the house, and
>> in my previous installations of phone lines, I had used plastic ties on
>> one of the phone lines to tie it to a cold water pipe. That pipe is
>> sweating copiously in the warm weather, so it could be that the
>> combination of water and being close to a metallic surface would
>> attenuate
>> the DSL signal. In any case, I insulated the pipe and moved the wire
>> away
>> from the pipe.
>>
>> I moved the modem to a second floor phone outlet where it seems to work
>> semi-reliably. I have a temporary ethernet cable up to the third floor
>> to
>> my working computer, and that functions reliably..at least for the
>> moment.
>>
>> My existing system does not split the line where it enters the house.
>> There are filters on all the phone outlets, an arrangement which used to
>> work properly.
>>
>> There are several suggestions on the internet (including Len's comment,
>> below) that it is better to split the POTS and ADSL lines close to the
>> demarcation point - ie, where the phone line enters the building. That
>> makes sense, since the added capacitance of the other phone lines would
>> tend to attenuate the ADSL signal. So the idea is to split the signal at
>> the demarc, and then use the second set of wires in the phone cable
>> (yellow and black) up to a separate phone outlet that is used only as an
>> ADSL connection.
>>
>> Tomorrow I'll contact Wilcom and see if I can order a suitable splitter:
>>
>> http://www.wilcominc.com/item.cfm?ProdID=35&result=1&stockalert=No#skus
>>
>> (Their webpage suggests using UPS for delivery. I will attempt to use
>> USPS
>> instead, since UPS charge atrocious border clearance fees.)
>>
>> Any other suggestions, such as a local source for the splitter, would be
>> welcome.
>>
>> (The 8-Port Ethernet switch also appears to be acting up, but one
>> technical challenge at a time..).
>>
>> What do people do who do not have a resident electrical engineer to sort
>> out this stuff?
>>
>> Peter
>>
>> > On Fri, May 30, 2014 at 06:42:43PM -0400, phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org
>> wrote:
>> >> Something recently changed with our Teksavvy DSL connection (they
>> >> 'optimized it, apparently) and now the modem (Sagecom 2864) works
>> close
>> >> to
>> >> the demarkation point in the basement and at phone outlets on the
>> first
>> >> and second floor, but not on the third floor, which is a little bit
>> >> further. I suspect the signal has gone down a bit in strength and
>> it's
>> >> not
>> >> enough for the modem.
>> >>
>> >> Unplugging phones has no effect.
>> >>
>> >> This is highly inconvenient since everything is cabled back to that
>> >> modem.
>> >> Changing over to wireless or some other solution is a major
>> disruption.
>> >>
>> >> The phone still works fine at the third floor outlet, so the
>> connection
>> >> is
>> >> basically OK.
>> >
>> > Working at 64kbit isn't the same as working at 25Mbit.
>> >
>> >> Anyone have any thoughts about a good DSL modem to try in this
>> >> situation?
>> >>
>> >> Any advice appreciated.
>> >
>> > For which kind of DSL?
>> >
>> > After all VDSL2 needs different modems than ADSL2 or ADSL.
>> >
>> > Looking it up, it seems the 2864 is in fact a VDSL2 modem.  When I had
>> > mine installed they ran a dedicated line from the demarc point for the
>> > modem, and put the splitter/filter by the demarc point (which means I
>> > don't need filters anywhere in the house which otherwise I would
>> have).
>> > It also means there are no splits on the line going to the modem which
>> > tends to help the signal quality a lot.
>> >
>> > Of course I got my VDSL2 link early enough that I have a cellpipe.
>> > I should probably talk to teksavvy about switching to a sagemcom that
>> > I buy instead of paying $8 rental each month.
>> >
>> > --
>> > Len Sorensen
>> > --
>> > The Toronto Linux Users Group.      Meetings: http://gtalug.org/
>> > TLUG requests: Linux topics, No HTML, wrap text below 80 columns
>> > How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists
>> >
>>
>>
>> --
>> Peter Hiscocks
>> Syscomp Electronic Design Limited, Toronto
>> http://www.syscompdesign.com
>> USB Oscilloscope and Waveform Generator
>> 647-839-0325
>>
>> --
>> The Toronto Linux Users Group.      Meetings: http://gtalug.org/
>> TLUG requests: Linux topics, No HTML, wrap text below 80 columns
>> How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists
>>
>

-- 
Peter Hiscocks
Syscomp Electronic Design Limited, Toronto
http://www.syscompdesign.com
USB Oscilloscope and Waveform Generator
647-839-0325

--
The Toronto Linux Users Group.      Meetings: http://gtalug.org/
TLUG requests: Linux topics, No HTML, wrap text below 80 columns
How to UNSUBSCRIBE: http://gtalug.org/wiki/Mailing_lists