Any Alarm Specialists here

[oldman]

The wiring on the wall jack, (bottom picture) tells me that your color code and jacks are totally different than in the U.S. If that blue and white wire are the source of dial tone that is where you are probably getting your capacitance or inductive reactance. We use minimum cat. 3 telephone wire and for higher bit rates cat. 5. the catagory number is a spec which gives the number of twists per inch which cancels the inherant inductive, (and capacitive) characteristics of wires running side by side, plus the guage, (diameter of the wire) has a lot to do with it as well. The smaller diameter the wire the higher the bit rate. 24 or 26 guage is much better than 20 or 22 guage, (the higher the guage number the smaller the wire). If I was there I could use my butt set to determine the source of your dial tone and bypass the alarm circuit but it appears that Aussie wiring and telco service is a bit different than here in the states.
In the interest of your sanity and riding time perhaps a local telco person might be of help.
Although the wiring is different the basics are the same, and that is the alarm circuit is in series with the rest of the phones in the house as previously explained. I wish I could be of more help, but being more than a days drive away I cannot visit your site. Sorry!!!

[seiko1]

Thanks anywaymate, I'm sure KSRC will pick up your airfare if you decide to pop over
I'm going to get up on the roof later and have a look

[seiko1]

Shit I give up
Found this in the roof today, unplugged it which totally took the alarm out of the equation

08012011123.jpg (140.9 KiB) Viewed 320 times

No difference whatsoever FFS
Connection Speed down 5663 kbps up 1020 kbps
Line Attenuation: Download 55.5 db Upload 30.0 db
Noise Margin 6.70 db 11.0 db
There is nothing else on any of the three outlets, no filter, nothing!!!!!!!
WTF?

[hoffy]

just get home and contents insurance ya dim-wit ! fuk the alarm...

[seiko1]

just get home and contents insurance ya dim-wit ! fuk the alarm...

I'm the dimwit?
It's not an alarm problem anymore...it's the internet speed ya dimwit

[hoffy]

just get home and contents insurance ya dim-wit ! fuk the alarm...

I'm the dimwit?
It's not an alarm problem anymore...it's the internet speed ya dimwit

ok good then, stop ya fukin wingin' then

[oldman]

I ran a catagory 5 wire from the telephone company interface directly to my internet connection and then put a filter on the wire that goes to the telephones and that worked pretty well. 5663 and 1020 kbps is 5.6 and 1.0 mega bits per second. Unless you wrote the numbers down wrong that is a pretty good rate for the type of wiring you have. I only get 1.5 and .89 MBPs with cat 5 wiring and cable loading to the telco interface.
Is it Jim Beam time yet?

[seiko1]

Apparently it's the noise causing it to gradually slow down to dialup speed.
But I think I have cracked the problem
The wire I looped yesterday that went to the alarm has four wires, two are active phone line and the other two return
the line back some ten or more mtr's to where it splits off to the other wall sockets.
That would be creating a magnetic field because there is voltage running in opposite directions
billimetres apart on unsheilded pissy little wire.
What do ya reckon? (56db of noise is to much they say)

Connection Speed down 5863 kbps up 1020 kbps
Line Attenuation down 54.5 db up 30.0 db
Noise Margin down 5.50 db up 12.0 db

Noise down slightly...speed up slightly!!!

but the longer I'm online the slower it gets..........

[oldman]

The extra 10 meters of wire would only make a difference if the wire is untwisted. The twists cancel the effect of the opposing inductive reactance. If the wires are untwisted they act like a transformer and induce EMF to each other through induction, which is the magnetic field created by the flow of electrons through the wire. If you have 56db of noise that could be an issue, (ground hum, static etc.). We usually go by signal to noise ratio where a ratio of 23 to one is minimum anything lower would be bad (17 to 1 etc.). The loop could be an issue however, so just eliminate it by splicing the two wires going out to the alarm to the two going in. An increasingly deteriorating line as you described sounds more like you have some kind of a line problem, (bad connection such as corroded terminals or a partial ring or tip ground or short). I wish i was there it would be fun to trouble shoot. Good luck.

[seiko1]

They are side by side, not twisted

[woteva]

When the alarm plug is removed, the contacts (green circle) join to complete the circuit. These could give a bad connection. You could remove the black wire and join with the blue. And also join the red and white wires. Just place them under the same screw post. It will eliminate at least 1 problem point.

[oldman]

They are side by side, not twisted

That can be a major issue as induction occurs only when the induced magnetic field is moving which is caused by the increase and decrease in current flow and voltage polarity (Alternating current). The higher the frequency the faster the magnetic wave fluctuates. Five megabits per second means we have a polarity change 5,000,000 times a second, therefore a need for twisted wire, (or twisted KSRC members). I would try and remove that loop and go from there. The induced EMF introduces false bits on the other wire as well as false noise. This becomes more intrusive the higher the frequency, (or bit rate). Your making me think way to much. Cheers.

[seiko1]

When the alarm plug is removed, the contacts (green circle) join to complete the circuit. These could give a bad connection. You could remove the black wire and join with the blue. And also join the red and white wires. Just place them under the same screw post. It will eliminate at least 1 problem point.

That was the first thing I did after finding the plug
I'm going to have a few beer's and then get back up on the roof, follow that bastard wire (inside the hot roof )
and see where the junction is, after I find it at least the voltage will all be going in the same direction
Cheer's and stop thinking so much on a Sunday

[seiko1]

Connection Speed Down 5976 kbps Up 1020 kbps
Line Attenuation Down 56.0 db Up 29.5 db
Noise Margin Down 6.05 db Up 11.0 db

After removing 20+ mtr's as it turned out, of two way line, the speed and reliability has improved....but that friggin noise!!!!!!!!!!!!!

[oldman]

Can you hear the noise or are you measuring it with a meter? If you can hear it then you could have; a ground, a partial open, an unbalanced cable pair. An unbalanced cable pair is where one lenth of the pair is longer than the other. You could also have bridge tap, which means there is a lenth of cable, probably in the telephone lines outside your house that is connected to your line that travels some distance but goes nowhere. At 6 A.M. on Sunday morning I'm shocked I can come up with all this shit. I've got to wait at least until 10 A.M. beforw Jim Beam. No riding today as the temp is below freezing and snowing, again. Maybe I'll go skiing. Cheers.