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Posted by drew on November 4, 2009, 11:28 am
The house that I bought had an old CPI security system that hadn't
been used in years and I did not see the need for a system so the
other day I was looking at the huge panel in my coat closet and
realized that I had both power and a phone line in a nice handy box.
So I disconnect the security panel and pitch it. I plug the modem
into the phone jack and the wall outlet and set up my wireless
router. I cleaned up and check the internet and it works great. So I
go about my business for a couple of days and realized I hadn't been
harassed by a telemarketer in a while (we like most people these days
use their cell phone for everything, the only reason I have a home
phone is for DSL). I pick up my land line and there is no dial tone.
I check the other three phone outlets in the house and they are all
dead. So I start thinking about the problem and hook up the phone to
the outlet in the closet and lo and behold I get a dial tone. I take
the router and modem and hook it up at another outlet and dsl works.
When I removed the security system circuit board from the closet, I
assumed the wires that screwed into the circuit board went to the
smoke detectors and door sensors. The board had a phone line plus
plug that plugged into the phone outlet in the closet.
Does anybody have any ideas on what might be going on? Here is what I
have sticking out my box. I have three 4 strand phone type wire
(Black, Green, Red, Yellow) and three 2 strand wire (black,red). I
pulled the sensors off the door and they seem to correspond to the
black and red (three exterior doors). I would assumed one of the 4
strand wires would have to go the the security panel. I am guessing
that at least one of the other 4 strand wires goes to my smoke
detectors.
Any help would be greatly appreciated.
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Posted by Bob F on November 4, 2009, 11:53 am
drew wrote:
> The house that I bought had an old CPI security system that hadn't
> been used in years and I did not see the need for a system so the
> other day I was looking at the huge panel in my coat closet and
> realized that I had both power and a phone line in a nice handy box.
> So I disconnect the security panel and pitch it. I plug the modem
> into the phone jack and the wall outlet and set up my wireless
> router. I cleaned up and check the internet and it works great. So I
> go about my business for a couple of days and realized I hadn't been
> harassed by a telemarketer in a while (we like most people these days
> use their cell phone for everything, the only reason I have a home
> phone is for DSL). I pick up my land line and there is no dial tone.
> I check the other three phone outlets in the house and they are all
> dead. So I start thinking about the problem and hook up the phone to
> the outlet in the closet and lo and behold I get a dial tone. I take
> the router and modem and hook it up at another outlet and dsl works.
> When I removed the security system circuit board from the closet, I
> assumed the wires that screwed into the circuit board went to the
> smoke detectors and door sensors. The board had a phone line plus
> plug that plugged into the phone outlet in the closet.
> Does anybody have any ideas on what might be going on? Here is what I
> have sticking out my box. I have three 4 strand phone type wire
> (Black, Green, Red, Yellow) and three 2 strand wire (black,red). I
> pulled the sensors off the door and they seem to correspond to the
> black and red (three exterior doors). I would assumed one of the 4
> strand wires would have to go the the security panel. I am guessing
> that at least one of the other 4 strand wires goes to my smoke
> detectors.
> Any help would be greatly appreciated.
The security panel may have connected the phone signal pair back to the other 2
wires of the phone jack, which would carry the signal back to the junction box
and on to the other phone jacks. It does this so it can sieze the line for alarm
calls.
Or, it could feed it on through one of the 4 wire cables similarly.
You may be able to rewire the phone junction box to correct the problem, or wire
a special splitter to feed your phone and feed the signal back into the closet
jack.
If this doesn't help, comp.home.automation is a good place for this question.
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Posted by N8N on November 4, 2009, 12:01 pm
> drew wrote:
> > The house that I bought had an old CPI security system that hadn't
> > been used in years and I did not see the need for a system so the
> > other day I was looking at the huge panel in my coat closet and
> > realized that I had both power and a phone line in a nice handy box.
> > So I disconnect the security panel and pitch it. =A0I plug the modem
> > into the phone jack and the wall outlet and set up my wireless
> > router. =A0I cleaned up and check the internet and it works great. =A0S=
o I
> > go about my business for a couple of days and realized I hadn't been
> > harassed by a telemarketer in a while (we like most people these days
> > use their cell phone for everything, the only reason I have a home
> > phone is for DSL). =A0I pick up my land line and there is no dial tone.
> > I check the other three phone outlets in the house and they are all
> > dead. =A0So I start thinking about the problem and hook up the phone to
> > the outlet in the closet and lo and behold I get a dial tone. =A0I take
> > the router and modem and hook it up at another outlet and dsl works.
> > When I removed the security system circuit board from the closet, I
> > assumed the wires that screwed into the circuit board went to the
> > smoke detectors and door sensors. =A0The board had a phone line plus
> > plug that plugged into the phone outlet in the closet.
> > Does anybody have any ideas on what might be going on? Here is what I
> > have sticking out my box. =A0I have three 4 strand phone type wire
> > (Black, Green, Red, Yellow) and three 2 strand wire (black,red). =A0I
> > pulled the sensors off the door and they seem to correspond to the
> > black and red =A0(three exterior doors). I would assumed one of the 4
> > strand wires would have to go the the security panel. I am guessing
> > that at least one of the other 4 strand wires goes to my smoke
> > detectors.
> > Any help would be greatly appreciated.
> The security panel may have connected the phone signal pair back to the o=
ther 2
> wires of the phone jack, which would carry the signal back to the junctio=
n box
> and on to the other phone jacks. It does this so it can sieze the line fo=
r alarm
> calls.
> Or, it could feed it on through one of the 4 wire cables similarly.
> You may be able to rewire the phone junction box to correct the problem, =
or wire
> a special splitter to feed your phone and feed the signal back into the c=
loset
> jack.
> If this doesn't help, comp.home.automation is a good place for this quest=
ion.
The line seizure thing sounds very likely to me. Possibly you could
rewire the cable going to that particular jack at the demarc and turn
it into a regular two line phone jack. I suspect that it's set up to
go "out" to the security system on the inner pair and "back" to the
main point of connection on the outer pair and then all the other
phone jacks in the house are connected to the "back" pair.
The reason that it's done that way is so that if you happen to be on
the phone when the security event occurs the panel will take control
of the outgoing phone line and dial out (disconnecting your call in
the process.)
nate
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Posted by Roger Shoaf on November 4, 2009, 12:15 pm
Here is an explanation of the alarm wiring:
http://www.hometech.com/learn/rj31x.html
Looks to me like you can de wire the line seize mode really easy.
--
Roger Shoaf
About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.
> The house that I bought had an old CPI security system that hadn't
> been used in years and I did not see the need for a system so the
> other day I was looking at the huge panel in my coat closet and
> realized that I had both power and a phone line in a nice handy box.
> So I disconnect the security panel and pitch it. I plug the modem
> into the phone jack and the wall outlet and set up my wireless
> router. I cleaned up and check the internet and it works great. So I
> go about my business for a couple of days and realized I hadn't been
> harassed by a telemarketer in a while (we like most people these days
> use their cell phone for everything, the only reason I have a home
> phone is for DSL). I pick up my land line and there is no dial tone.
> I check the other three phone outlets in the house and they are all
> dead. So I start thinking about the problem and hook up the phone to
> the outlet in the closet and lo and behold I get a dial tone. I take
> the router and modem and hook it up at another outlet and dsl works.
> When I removed the security system circuit board from the closet, I
> assumed the wires that screwed into the circuit board went to the
> smoke detectors and door sensors. The board had a phone line plus
> plug that plugged into the phone outlet in the closet.
> Does anybody have any ideas on what might be going on? Here is what I
> have sticking out my box. I have three 4 strand phone type wire
> (Black, Green, Red, Yellow) and three 2 strand wire (black,red). I
> pulled the sensors off the door and they seem to correspond to the
> black and red (three exterior doors). I would assumed one of the 4
> strand wires would have to go the the security panel. I am guessing
> that at least one of the other 4 strand wires goes to my smoke
> detectors.
> Any help would be greatly appreciated.
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Posted by DGDevin on November 4, 2009, 1:19 pm
drew wrote:
> The house that I bought had an old CPI security system that hadn't
> been used in years and I did not see the need for a system so the
> other day I was looking at the huge panel in my coat closet and
> realized that I had both power and a phone line in a nice handy box.
> So I disconnect the security panel and pitch it.
Was there a security company sign for the front of the house? If so I hope
you kept it, those signs are excellent burglar repellents.
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> been used in years and I did not see the need for a system so the
> other day I was looking at the huge panel in my coat closet and
> realized that I had both power and a phone line in a nice handy box.
> So I disconnect the security panel and pitch it. I plug the modem
> into the phone jack and the wall outlet and set up my wireless
> router. I cleaned up and check the internet and it works great. So I
> go about my business for a couple of days and realized I hadn't been
> harassed by a telemarketer in a while (we like most people these days
> use their cell phone for everything, the only reason I have a home
> phone is for DSL). I pick up my land line and there is no dial tone.
> I check the other three phone outlets in the house and they are all
> dead. So I start thinking about the problem and hook up the phone to
> the outlet in the closet and lo and behold I get a dial tone. I take
> the router and modem and hook it up at another outlet and dsl works.
> When I removed the security system circuit board from the closet, I
> assumed the wires that screwed into the circuit board went to the
> smoke detectors and door sensors. The board had a phone line plus
> plug that plugged into the phone outlet in the closet.
> Does anybody have any ideas on what might be going on? Here is what I
> have sticking out my box. I have three 4 strand phone type wire
> (Black, Green, Red, Yellow) and three 2 strand wire (black,red). I
> pulled the sensors off the door and they seem to correspond to the
> black and red (three exterior doors). I would assumed one of the 4
> strand wires would have to go the the security panel. I am guessing
> that at least one of the other 4 strand wires goes to my smoke
> detectors.
> Any help would be greatly appreciated.