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Thread ID: 27265	2002-11-18 09:09:00	Broad band ADSl splitters & filters	bk T (215)	Press F1

Post ID	Timestamp	Content	User
99409	2006-09-07 11:25:00	Surely this takes the cake for the oldest thread dragged up!!?? :lol:	Ferg (2559)
99410	2006-09-08 02:08:00	Ferg: comments like that might discourage a new member, who has done the right thing: used the search function and found a thread which covers the subject of interest. thefatralph then posed a perfectly reasonable question about something not covered in the thread. thefatralph: Welcome to PressF1. If filters were perfect, there would be no need for Telecom to do an installation of a "splitter". They might still want to do it for places with lots of extensions (not wholly for "mercenary" reasons: many homes with more than 5 phone outlets might have had the wiring extended several times; by people with varying levels of skill, with various qualities of wire and jointing methods :groan:) But, nothing's perfect. Each filter added loads the line a bit, and the effect on high (ADSL) frequencies would be worst.. Enough loading would reduce the ADSL signal to the extent that you would be complaining about the data speed. :( The installation of a single unit at the point of entry removes that problem. You then have a dedicated ADSL socket at the entry point, which is directly connected to the outside line; and a series of "telephone" sockets which are isolated from the ADSL signals. Presumably Telecom's installer would checkk and possibly replace any wiring to the phone sockets which isn't up to modern standards.	Graham L (2)
99411	2006-09-23 07:38:00	Oh no another newbie - me! But this thread looks helpful. I have built a new house with 6 phone jacks all separate cables to the entry point. At that spot I have one filter connected to the lines I don't have a dsl router connected. The issue I have is this: I can only get a connection from the router via 2 points in the house (one of which is at the access point), both points give me crappy wireless connectivity to the rest of the house (big house). What should I do? Will a splitter do anything for getting a stronger/cleaner signal to another jack point in the house? Does the splitter have to be installed by telecom? Or should I just get a range expander/extender?	uncsam (2560)
99412	2006-09-23 23:05:00	Hi Guys, As I understand things (and Telecom 123 should be able to confirm the first point): 1/ From entry point into the house, wiring is yours to do what you want with. If anyone messes up this wiring, Telecom has contractors able to fix it, but will charge for the work (and am sure would charge if "your" installation work messed up the rest of the street etc!). 2/ Filters on individual ph jackpoints work fine for many people, and yes, in some cases, works OK without filters. This means you can get a computer/adsl connection anywhere in the house, just by juggling with jackpoints, filters, extension leads, etc 3/ Where there are 5 (or more) devices actually connected to ph jacks, or with a monitored burglar alarm, or where the adsl signal is marginal, a "Splitter Installation" should help everything work better. Downside is you get only ONE jackpoint to connect the computer. 4/ There will always be properties where adsl will not work at all because of wiring issues and/or distance to the ph exchange. 5/ Unscam - yes, a splitter should work - BUT... ...also sounds like it should be easy enough to get your "ADSL" switched to a more appropriate jackpoint via the existing system. Maybe even change to using filters at each jackpoint (assuming no alarm, less than 5 devices actually connected?)? Regards, Martnz	martnz (271)
99413	2006-09-24 00:11:00	If filters were perfect, there would be no need for Telecom to do an installation of a "splitter". A filter and a splitter are essentially one and the same thing, the only difference is the configuration for the differing uses. A splitter has two wires connected to the incoming phone line, two wires straight through from there for the ADSL signal, then tapped off those straight-through wires are two going to a low-pass filter to feed the normal telephone frequencies to the phone distribution wiring. It is a straight through device for ADSL with a tapped off branch via a low-pass filter for the phone lines. This arrangement keeps the high frequency (RF) ADSL signal out of the telephone lines, and stops the low impedance phone circuits from attenuating (damping) the HF ADSL signal. A plug-in filter doesn't have a tap-off for the full bandwidth ADSL feed and that is the only practical difference apart from the quality of the low-pass filter design. Yes, phones and ADSL can coexist without filters or splitters, depending on the characteristics of the phones, but for best results (highest speeds) it is still a good idea to separate church and state. For optimum speed it is also desirable to convert your phone wiring to the new two-wire standard by replacing all old 3-wire outlets, in fact Telecom won't guarantee ADSL performance on 3-wire systems. The two wire system maintains better line balance and constant impedance. I rewired my home with Cat-5E network cable and installed new 2-wire outlets, and as a result I enjoy a stable high speed connection. I get the best speed the contention ratio will allow at any given time, and when loading is low, my download speed goes off the clock on most speed checks. Some time ago I posted a thread (or posted in a similar thread) describing how to convert a cheap filter into a splitter. It might be worth looking for that if anybody is interested. Too much misinformation and too many urban myths. Cheers Billy 8-{) Just to wrap that up, I have a telecom splitter installed and it is a straightthrough for ADSL and Low pass for phones. There is no form of filering on the ADSL line-out.	Billy T (70)
99414	2006-09-24 01:32:00	Cool, thanks for the help! I do have an alarm as well - so that is sky+alarm+adsl+3 phone jacks (only one in use). I'll give telecom a go with a splitter if and only if the splitter does something to the ADSL signal. Thanks again	uncsam (2560)
99415	2006-09-24 06:25:00	Cool, thanks for the help! I do have an alarm as well - so that is sky+alarm+adsl+3 phone jacks (only one in use). I'll give telecom a go with a splitter if and only if the splitter does something to the ADSL signal. Thanks again Sigh..........A splitter does nothing, zero, nada, zip to your ADSL signal. A splitter isolates your telephone/fax/alarm systems from the HF ADSL signals and stops them from doing things to your DSL performance. Cheers Billy 8-{) :waughh:	Billy T (70)
99416	2006-09-24 06:59:00	The reason you would need a splitter with an alarm system is the alarm system is hard wired and by not using plug-in filters means less likely distruption to their system - particularly the burglar can't unplug or cut the cable if the cable is secured in a wall or conduit. This is not so important for sky - it is just counted as a another modem. With reference to number of connections - Add Sky, phone(s), computer modem (for dial-up or fax) and fax. The other as far as wiring at damarcation point goes - you have a good line from there to your adsl modem and no spagetti junction interferance with the ADSL unfiltered cabling going all over the house. With reference to the person that has all cables going to a central point - you could just change the conenction aat the central point (in the data/media cabinet?) from the ADSL side of the filter to the phone side and vise-versa. This is the advantage of these systems.	JaceKiwi (2561)
99417	2006-09-24 07:24:00	I give up:help: You get an 'A' in incoherence there Jace, in fact I don't know why you bothered to post at all . You were trying to answer questions that were not being asked, and succeeded only in muddying the water even further . For something as basic and simple as the choice between splitters and filters (one permanent vs several portable, all doing exactly the same thing) this thread seems to be oversubscribed with very wobbly interpretations . Cheers Billy 8-{)	Billy T (70)
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