<div dir="ltr"><div><div><div><div>Thanks all for responses<br><br></div>I ended up being able to talk to the electrician who requested phone extension line; I am made to understand that this would carry the signal far enough<br><br><br><br></div>Apologies I forgot to specify that this is in an office building, and the exchange box is in a room along a few corridors with locked doors on the way, so we couldn't really put the router there.<br><br></div><div>I think there was a fault in my thinking in the first place where I was imagining putting the filter at the "wall" (it looks like a regular wall block, dangling off the exchange rack - the tentel engineer did that, not me!) and then using Ct5e/Cat6 from there to the router, forgetting that that length could not have been ethernet cabling anyway...<br></div><div><br></div>I still don't know the name of the cable type; all I can see is that it has 4 wires in it so it sounds like what David is describing as the Cat3....<br><br><br><br><br></div>Can I assume that when wiring at home (different scenario now) that if I plug the router into a socket that's not the primary one (and instead, plugging into an outlet that was installed as an extension), I am doing it wrong from a data-throughput-maximization point of view? Or can Cat3 still carry a high rate of digital signal (with other tradeoffs instead)?<br><div><div><br><br></div></div></div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><br><br>===<br>Tai Kedzierski<br><br></div><div>Affordable Office IT for Freelance and Startup Businesses<br></div><div dir="ltr"><a href="http://helpuse.com/" target="_blank">http://helpuse.com/</a><br></div><br><div dir="ltr"><span></span><font size="1"><img src="http://www.free-mac-programs.com/images/applications/libreoffice.png" height="19" width="19"> I use <a href="http://www.libreoffice.org" target="_blank">www.libreoffice.org</a><br><br><i>Open Source Free Software is a matter of liberty, not price.</i><br>
<a href="http://bit.ly/foss-why-care" target="_blank">http://bit.ly/foss-why-care </a><br></font><font size="2"><br></font></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
<br><div class="gmail_quote">On 29 June 2016 at 18:29, Edinburgh Linux Users Group <span dir="ltr"><<a href="mailto:edlug@lists.edlug.org.uk" target="_blank">edlug@lists.edlug.org.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote"><span class="">On 28 June 2016 at 19:04, Edinburgh Linux Users Group <span dir="ltr"><<a href="mailto:edlug@lists.edlug.org.uk" target="_blank">edlug@lists.edlug.org.uk</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><p dir="ltr"><span><br>
On 28 Jun 2016 6:25 p.m., "Edinburgh Linux Users Group" <<a href="mailto:edlug@lists.edlug.org.uk" target="_blank">edlug@lists.edlug.org.uk</a>> wrote:<br>
><br>
> Hello<br>
><br>
> I need to wire a router in one room to a phone socket, 60m away.<br></span>
You've not said if this is ADSL or VDSL, but I'm not sure it would matter in regards to the answer...<br>
Do you really need to do that, or could you run a network cable from the router 60m away and plug it into a switch where you need the ports? Ethernet is probably way more tolerant than ADSL/VDSL.<span><br></span></p></blockquote></span><div>VDSL is the newer version of ADSL and therefore both are technologies to run data communications over the full available spectrum (bandwidth) of ordinary copper telephone cabling used in the last mile deployment. DSL suffers from exponential decay of signal quality, so you always want to place your DSL modem as close to the exchange as possible, and this usually means immediately at the wall. For ADSL2+, if you are right next door to the exchange you will get the full 24Mb Down and 1Mb Up, but at 800 metres, this drops to about 16Mb Down, at 2000 meters, this drops to about 8Mb Down, at 4000 meters this drops to 2 - 4Mb and about 400k up, but your milage may vary.</div><div><br></div><div><br></div></div></div><div class="gmail_extra"><div class="gmail_quote"><span class=""><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><p dir="ltr"><span>
> I am wondering what the best cable choice is for reliability and maximized data thrgouhput - attach the filter at the wall and run long cat6, or run phone cable from the wall to the router and attach filter there?<br></span>
I would advise having the filter connected directly to the socket, or replacing the socket with one that has the filter built in.<span><br>
</span></p></blockquote></span><div><div class="gmail_extra"><div class="gmail_quote"><div>Put your filter and router by the wall, then run 60m of Cat 5e and then a switch and an access point (there is little point of going to Cat 6). From wikipedia:</div><div><br></div></div></div><blockquote style="margin:0px 0px 0px 40px;border:none;padding:0px"><div class="gmail_extra"><div class="gmail_quote">Each 1000BASE-T network segment can be a maximum length of 100 meters (328 feet), and must use Category 5 cable or better (including Cat 5e and Cat 6).<br></div></div></blockquote><div class="gmail_extra"><div class="gmail_quote"><div> </div><div>Cat 6 is bulkier and more difficult to handle, and generally not worth the effort, unless you have a very good reason.</div><div><br></div><div>Unless you know that there is a lot of EM / RF interference along where you putting the cabling you should get full gigabit transfer. </div></div></div></div><span class=""><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex"><p dir="ltr"><span>><br>
> I guess my main problem is that I cannot find what the name/definition of regular phone cable is to look up its properties....<br></span>
I don't think you'd notice a difference between cat5e and cat6 cable, but either of these would likely perform much better than telephone wire due to the tighter twisting of the pairs. You might find that shielded twisted pair (STP) cable performs slightly better than unshielded (UTP), depending on electrical noise, etc. There doesn't seem to be much information on the normal telephone cable, but I think it's CW1308 (which seems to me to be incorrectly listed as 4 wire cat5e - I'm sure that 5e has 4 pairs/8 wires, but feel free to correct me on any point). You can also pick up similar cable with 8 conductors, that I'm sure I've seen used in old alarm installations.</p>
<p dir="ltr"></p></blockquote></span><div>Phone cabling (POTS / Plain Old Telephone System) is typically 2 pair Category 3 UTP (Unshielded Twisted Pair), but can come in much bigger bundles. </div><div><br></div><div>Do not use STP (Shielded Twisted Pair) as you have to ensure it is grounded to begin with, and even then its frequency response, attenuation and impedance is different from UTP. Ethernet is designed to use UTP, not STP! UTP is designed to cancel out noise through the twists in the pairs. The one thing to note about long distances, is the earthing or grounding. For example, if you are running a cable between two buildings, then the ground potential (voltage) can be different enough to affect the operation and health of your equipment. </div><div> </div></div>David<span class="HOEnZb"><font color="#888888"><br clear="all"><div><br></div>-- <br><div data-smartmail="gmail_signature">+-------------------------------------------------------------------------------------<br>David<br><br>Email | <a href="mailto:david@hackbinary.com" target="_blank">david@hackbinary.com</a><br><br>I have no doubt that in reality the future will be vastly more surprising than anything I can imagine. Now my own suspicion is that the Universe is not only queerer than we suppose, but queerer than we can suppose.<br> - J.B.S. Haldane<br>+-------------------------------------------------------------------------------------</div>
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