problem between burglar alarm and adsl [Archive] - SpeedGuide.net Broadband Community

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piranha
10-08-01, 11:21 AM
Below a translation from a french consumer magazine (Protégez-vous, Quebec, Canada, september 2001) made with a translate web site. Sorry for the translation.

the high speed and the burglar alarm, it is necessary to choose!

Please , surf at top speed and speak at the same time: Bell's advertisement for its service of connection high speed is convincing. These last years, thousands of Internet users succumbed to the charms of the ADSL (Asymmetric Digital Subscriber Line) - the technology of the high speed by telephone - 30 times as fast to navigate on average that with a phone modem. But by opening their computer on the world, they risk also to open the doors of their house to the thieves.
It is at least what discovered(found) last March Maud Mayrand, of Repentigny, in suburb of Montreal. This subscriber of a service of electronic surveillance learnt that her burglar alarm was not connected any more with the power plant. The origin of this problem? The subscription some months earlier in the internet service Sympatico Édition Haute Vitesse (high speed sympatico).
" It is an urban legend " assures(insures) Marie-Ève Savard, of Bell. "Legend" that the technicians of alarm Sentinel are far from finding funny: " Eighty percent of our customers who subscribe to this internet service knows this type of problem " answers Pierre Paulin, responsible for the service to the clientele of this company.
The reason: the ADSL rests(bases) on a small filter placed near the phone plug which separates the vocal frequencies of those that are reserved for the numeric(digital) data of internet. Now the information sent by the burglar alarm to a power plant by the intervention of a modem borrows(takes) the same road as the internet communications. Communications which occupy permanently the space of the line, even when the computer is close (off).
" The interferences between the ADSL and our devices are known in the industry of the electronic surveillance since a long time continuous Pierre Paulin, and we look at present for effective solutions to remedy it ".
Among these: another leaks out placed near the grip of the telephone, tested for some months in the United States, which should allow the internet frequencies as those of the burglar alarm better to live. " The first results are encouraging, he pursues. Even if it tends to reduce the speed of internet data transmission. "
It is the price to pay to navigate without compromising the safety(security) of its property... Unless opting for a connection with high speed by cable or microwaves (satellite) or still to turn(return) its pockets to subscribe to a second line of telephone.

Did some of you experience this problem ??

I got one case like that in my french tweak forum.

MagicMikey
10-08-01, 11:43 AM
Interesting... however....I'm still a little confused... May I have the link to the original French article please? Once I understand this I'll reply to this message again giving my opinion...

Also, would it be possible to share your forum link with me please piranha?

Thanks!

piranha
10-08-01, 11:53 AM
My forum link is now in my sign. Sorry, this article is not available i think on the net. I ask somebody to find the article i read when i were at friends. Dont know at this time, i will be moderator...

See here, for the french version : http://vp.excal.ca/ubb/Forum9/HTML/000058.html

MagicMikey
10-08-01, 12:27 PM
I would have liked to have gotten more detail out of the French version but it's pretty much the same as the English one... ;) From what I understand, it's mostly the ISP's fault because it isn't compatible with the 'alarm system(s)', only compatible with it's Bell services, however it might be vise versa. Not like I'm trying to blame someone here, it's just my opinion. Now the alarm system must be connected to a phone line via a modem which uses the same line as the ADSL connection correct? (I don't have an alarm system personally therefor I don't have first hand experience, I'm just going by the article).

What's interesting is that the interference is still there even if the computer is shut off so it has absolutely nothing to do with the computer but the Bell services!

As far as soltutions go, I'd assume getting a second phone line with each device on it's own line will solve the problem, but that would cost money.

What's funny about this article is that it says "they risk also to open the doors of their house to the thieves".....heh, no one uses locks on their doors anymore? ;) :)

piranha
10-08-01, 12:35 PM
Conflict is on the two ways. Someone subscribe to adsl and the burglar alarm stopped to be connect to the central that is why "they risk also to open the doors of their house to the thieves"..

Problem is also that isp dont recognize the problem and dont support it or suggest some solution.

Lobo
10-08-01, 12:37 PM
Open the doors and led USAMA-BIN in:) :) :)

beast
10-14-01, 05:52 PM
I have dsl and a burglar. The fix for this was to get a pod switch.
dsl and alarm use the "digital" part of phone line, so the tech tells me. The switches are available to corporations. Individuals need to pull corporate teeth to get them.
ADT is aware of this problem and have in fact a work around solution, and have had since December 2000

piranha
10-16-01, 07:05 AM
Originally posted by beast
I have dsl and a burglar. The fix for this was to get a pod switch.
dsl and alarm use the "digital" part of phone line, so the tech tells me. The switches are available to corporations. Individuals need to pull corporate teeth to get them.
ADT is aware of this problem and have in fact a work around solution, and have had since December 2000

Happy to know there is a solution available. How it works ?

beast
10-16-01, 11:55 AM
Has far as dsl goes, it doesn't look like I lost any speed. The switch looks like a line splitter, except it has a receptacle for an RJ style jack, which is what the alarm system uses. It was well worth it

piranha
10-16-01, 07:35 PM
Is the burglar alarm shut off while you surf ?

beast
10-16-01, 07:58 PM
Nope. Up and running all the time. Actually had adt test it while I was on line and armed the system.

Musclemanfu2
10-16-01, 08:42 PM
A work around that works on some alarm systems,

DSL and HOME ALARM SYSTEMS

Original setup,
http://www.dslreports.com/i/Original.jpg

Modified setup,
http://www.dslreports.com/i/Modified.jpg

piranha
10-16-01, 10:30 PM
Beast

I wonder how it works...... I you have link or more info, let me know please.

Musclemanfu2

Thanks, good and interesting links that will be known soon by my french forum user when the f.....forum works !

beast
10-17-01, 09:40 PM
Not sure on the answer to either. I haven't found a link on this, but if you email me I can give you a number to start from. I see you are in Canada also. If you are a Bell customer, they will deny knowing about this, so you have to push them for the information. The other thing they won't do is let someone else install it.