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Interesting Experiment with ADSL Splitter - 2

02/03/2014 12:59 PM

Previously, I have done some experiments with the ADSL splitter.

I have been going ahead with more experiments, now I would like to post all of them here, including the old and the new ones.

Their schema can be found in

http://www.flickr.com/photos/80780504@N07/12291127016/

Experiment a)
Plug the telecommunication line into the input. Then in the output lines, I make the swapping. I plug the phone line to the internet output, and the internet line to the phone output
Then I dial the phone to call to a fax number
Surprisingly, I heard the busy tone, instead of fax tone.
Note: When I connect in normal way, plug the phone line to the phone output, and internet line to the internet output, this effect does not happen. That means I heard the fax tone as usual
Experiment b)
I make the looping back from the net output to the input. To do this, I cut into the cable and heal the wire inside, with the same color correspondingly (green to green, red to red)
Then, I connect phone output to a telephone machine.
Result: No tone heard when I picked up the phone machine

Experiment c)
I make the connection between phone output and net output, by cutting into the cable and healing the wire inside, with the same color correspondingly (green to green, red to red), similarity as I did in experiment b)
Then, I connect phone output to a telephone machine.
Result: No tone heard when I picked up the phone machine

Experiment d)
Wall line is plugged into the net output (Not the input). Then, I make the looping back from the phone output to the input. To do this, I cut into the cable and heal the wire inside, with the reverse color correspondingly (green to red, red to green)
Then, I connect input line to a telephone machine.
Result: No tone heard when I picked up the phone machine
Note: If I repeat the same experiment by healing the wire with the same color correspondingly (green to green, red to red), no issue happens. The tone can be heard from the phone machine
Experiment e)
Wall line is plugged into the phone output (Not the input). Then, I make the looping back from the net output to the input. To do this, I cut into the cable and heal the wire inside, with the same color correspondingly (green to green, red to red)
Then, I connect input line to a modem to emit Internet signal
Result: No internet signal is created

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#1

Re: Interesting experiment with ADSL splitter - 2

02/03/2014 2:07 PM

Yer gonna' break the internet kid.....stop foolin' around.....

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#10
In reply to #1

Re: Interesting experiment with ADSL splitter - 2

02/04/2014 1:31 PM

The wrong connections on things can be a problem.

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#2

Re: Interesting experiment with ADSL splitter - 2

02/03/2014 2:49 PM

How did the connection to 240vac go?

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#5
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Re: Interesting experiment with ADSL splitter - 2

02/03/2014 7:27 PM

I have to believe that, knowing that the laws of natural selection would have come into play with the execution of either of our suggestions, that the OP saw fit not to proceed with those derivations.

So, we are left to speculate on the outcome of said connections.

To me, said speculation is more entertaining than the OP's original offering and subsequent piddling in ADSL splitting, whatever the reasons for his toil.

I'm waxing philosophical, it seems. Or, just being a jerk.

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#3

Re: Interesting experiment with ADSL splitter - 2

02/03/2014 4:54 PM

Obviously, I need more time on my hands.......

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#4

Re: Interesting experiment with ADSL splitter - 2

02/03/2014 6:57 PM

In some jurisdictions, your experiments could earn you a holiday at the State's expense. You'd have board and lodging provided, but may have to share a room. It would not be much fun.

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#6

Re: Interesting experiment with ADSL splitter - 2

02/03/2014 9:41 PM

If this was an interesting experiment to you say away from my shop! What I experiment with would put you into shock!

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#7

Re: Interesting Experiment with ADSL Splitter - 2

02/03/2014 11:10 PM

While trying to climb over terms like "heal the wire", "make the looping back", and "phone machine" I pause in my soliloquy and my thoughts splinter and I find myself wondering what this experimenter will accomplish when they discover wireless modems and Tesla Coils, i.e., spark-gap transmitters...

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#8

Re: Interesting Experiment with ADSL Splitter - 2

02/04/2014 5:58 AM

Why would you be interested in those experiments?

What is the purpose?

What are you looking for with this?

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#12
In reply to #8

Re: Interesting Experiment with ADSL Splitter - 2

02/05/2014 12:05 PM

I jumped into those experiments accidentally, then I found they give out surprising results that are hard to explain. My original purpose is just to fulfill my curiosity. Then, I expect they can result in new discovery in network technique

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#13
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Re: Interesting Experiment with ADSL Splitter - 2

02/05/2014 12:28 PM

Not likely! There are legitimate circuits that use feedback such as amplifiers, control systems and the like. Those systems are specifically designed in order to take advantage of the output information in order to adjust or otherwise react to the whole system. All of these systems use active devices that respond to the feedback.

A splitter is not an active device. It is a passive device. Feedback is not always desirable. If you don't understand this, just think about what happens when you stand in front of an amplifier while using a microphone. That squeel is not a useful discovery. What you are doing is a waste of your time and ours as well.

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#17
In reply to #13

Re: Interesting Experiment with ADSL Splitter - 2

02/06/2014 5:31 AM

Actually I have stood in front of an amplifier holding a microphone, which is connected to that amp, many times with no feedback. Just make sure that the SPEAKERS connected to that amp's output are in front of you and facing AWAY from you...

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#18
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Re: Interesting Experiment with ADSL Splitter - 2

02/06/2014 7:43 AM

An amplifier is, by design, a potentially unstable circuit. Without that tendency to naturally become unstable, you would not be able to achieve amplification. You learn about this late in the second or third semester of electrical engineering.

A lot of design work goes into making sure that stability is maintained while making the output larger than the input. Turning away from the speakers helps. Therefore, you become part of the feedback suppression system. Decreasing the output is another way of suppressing the feedback. Easy to observe, not so easy to understand because of the math. But math is the only way to characterize the system and without it, we would not enjoy the kinds of electronics we take for granted every day.

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#19
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Re: Interesting Experiment with ADSL Splitter - 2

02/06/2014 8:02 AM

Think ArmyMarsGuy was pointing out that without the acoustic link between the amp and the mic (via the speskers) you wouldn't get the feedback. Think it was a mild joke.

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#16
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Re: Interesting Experiment with ADSL Splitter - 2

02/05/2014 6:25 PM

No ofense but, who old are you?

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#9

Re: Interesting Experiment with ADSL Splitter - 2

02/04/2014 9:21 AM

So what is your hypothesis?

(from wiki) "An experiment is an orderly procedure carried out with the goal of verifying, refuting, or establishing the validity of a hypothesis "

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#11

Re: Interesting Experiment with ADSL Splitter - 2

02/05/2014 11:50 AM

Some people just like to shoot in the dark. It hasn't occured to them that they might hit something. Nevermind the consequences, fire away!

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#14

Re: Interesting Experiment with ADSL Splitter - 2

02/05/2014 2:20 PM

123 test test

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#15
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Re: Interesting Experiment with ADSL Splitter - 2

02/05/2014 2:39 PM

123 test test (wow - the TEST just poassed) the R2D2 speaks modem language (a feature related figure) - it's about genie in telephony network being qurious about it's filter passes -- the optics (shot) confirms it's that (a genie) -- so you tried to help it -- congratulations

since i cant guess it's original worries - i can't much extent this

we can speculate that when it's "wave" passes the filter it gets into different Fq. domains - in sum looses it's integrity and is doomed to fade off the net - it what ir's worried about

however you should specify the test equipement - model , serial , your telephone company and adress so the experiment can be repeated - you should not publish it here - have it recorded / filed - for already mentioned reson , thanks for your effort (not really into it right now)

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