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| 05 May 2008 07:58:53 |
| Stumpy |
| DSL phone line |
We just switched over to DSL from modem on home computers. Put DSL filters on the handsets in the house and also on the cord going to the computer modems. When we try to receive faxes only one of the computers will even attempt to "answer" the call. Is it possible that the two middle wires that we are using on the wires running through the house are reversed on the non-functioning modem? Both computers could previously do this. The suspect line can operate a telephone no problem. Seems odd to work on one, but not the other. The junction box on the exterior of the house has red to red and green to green, haven't yet figured out which connection goes to which outlet. Should I randomly try reversing some wires or does it even matter? |
| 05 May 2008 10:41:36 |
| BobW |
| Re: DSL phone line |
"Stumpy" <perilmung@spamnet.con > wrote in message news:OtydnRCDcdiAvILVnZ2dnUVZ_oGjnZ2d@earthlink.com... > We just switched over to DSL from modem on home computers. Put DSL > filters on the handsets in the house and also on the cord going to the > computer modems. When we try to receive faxes only one of the computers > will even attempt to "answer" the call. Is it possible that the two > middle wires that we are using on the wires running through the house are > reversed on the non-functioning modem? Both computers could previously do > this. The suspect line can operate a telephone no problem. Seems odd to > work on one, but not the other. The junction box on the exterior of the > house has red to red and green to green, haven't yet figured out which > connection goes to which outlet. Should I randomly try reversing some > wires or does it even matter? The polarity of a home phone line hasn't mattered since the early 60s. You have some other problem like a broken connection through some of the filters. Try putting a phone where one of the non-answering computers is connected and see if the line is really getting through that particular filter. Bob -- == NOTE: I automatically delete all Google Group posts due to uncontrolled SPAM == |
| 05 May 2008 11:00:55 |
| Stumpy |
| Re: DSL phone line |
>> The suspect line can operate a telephone no problem. Seems odd to work >> on one, but not the other. The junction box on the exterior of the house >> has red to red and green to green, haven't yet figured out which >> connection goes to which outlet. Should I randomly try reversing some >> wires or does it even matter? > > The polarity of a home phone line hasn't mattered since the early 60s. You > have some other problem like a broken connection through some of the > filters. Try putting a phone where one of the non-answering computers is > connected and see if the line is really getting through that particular > filter. > > Bob > I did and it does. I also swapped the filters and it did not make a difference. Both computers are similar and I think have the same modem. |
| 05 May 2008 18:41:07 |
| Jamie |
| Re: DSL phone line |
Stumpy wrote: > We just switched over to DSL from modem on home computers. Put DSL filters > on the handsets in the house and also on the cord going to the computer > modems. When we try to receive faxes only one of the computers will even > attempt to "answer" the call. Is it possible that the two middle wires that > we are using on the wires running through the house are reversed on the > non-functioning modem? Both computers could previously do this. The > suspect line can operate a telephone no problem. Seems odd to work on one, > but not the other. The junction box on the exterior of the house has red to > red and green to green, haven't yet figured out which connection goes to > which outlet. Should I randomly try reversing some wires or does it even > matter? > > The polarity could be an issue, answering, automation machines like Faxes and the like used to detect the phone polarity to indicate an on/off hook on the other end. the polarity used to flip when the party on the other end picked up the line and when they drop the line, your polarity would switch back. This is how answering machines can detect you dropping the line and not complete the answering message. I don't know if your fax machine is actually detecting this. It may think it's already connected. -- http://webpages.charter.net/jamie_5" |
| 05 May 2008 17:37:49 |
| Lord Garth |
| Re: DSL phone line |
"Jamie" <jamie_ka1lpa_not_valid_after_ka1lpa_@charter.net > wrote in message news:zVLTj.37$wj3.6@newsfe06.lga... > Stumpy wrote: > >> We just switched over to DSL from modem on home computers. Put DSL >> filters on the handsets in the house and also on the cord going to the >> computer modems. When we try to receive faxes only one of the computers >> will even attempt to "answer" the call. Is it possible that the two >> middle wires that we are using on the wires running through the house are >> reversed on the non-functioning modem? Both computers could previously >> do this. The suspect line can operate a telephone no problem. Seems odd >> to work on one, but not the other. The junction box on the exterior of >> the house has red to red and green to green, haven't yet figured out >> which connection goes to which outlet. Should I randomly try reversing >> some wires or does it even matter? > The polarity could be an issue, answering, automation machines like Faxes > and the like used to detect the phone polarity to indicate an > on/off hook on the other end. > the polarity used to flip when the party on the other end picked up > the line and when they drop the line, your polarity would switch back. > This is how answering machines can detect you dropping the line and > not complete the answering message. > > I don't know if your fax machine is actually detecting this. It may > think it's already connected. These polarity changes have been designed out of newer switching systems since the early 80's....however, if the CO is old, it will work as described. |
| 05 May 2008 16:08:58 |
| Stumpy |
| Re: DSL phone line |
>> The polarity could be an issue, answering, automation machines like >> Faxes and the like used to detect the phone polarity to indicate an >> on/off hook on the other end. >> the polarity used to flip when the party on the other end picked up >> the line and when they drop the line, your polarity would switch back. >> This is how answering machines can detect you dropping the line and >> not complete the answering message. >> >> I don't know if your fax machine is actually detecting this. It may >> think it's already connected. > > > These polarity changes have been designed out of newer switching > systems since the early 80's....however, if the CO is old, it will work > as described. > What is a CO ? |
| 05 May 2008 16:16:48 |
| Ron M. |
| Re: DSL phone line |
On May 5, 7:08=A0pm, "Stumpy" <perilm...@spamnet.con > wrote: > >> =A0The polarity could be an issue, answering, automation machines like > >> Faxes and the like used to detect the phone polarity to indicate an > >> on/off hook on the other end. > >> =A0 the polarity used to flip when the party on the other end picked up= > >> the line and when they drop the line, your polarity would switch back. > >> =A0 This is how answering machines can detect you dropping the line and= > >> not complete the answering message. > > >> =A0 =A0I don't know if your fax machine is actually detecting this. It = may > >> think it's already connected. > > > These polarity changes have been designed out of newer switching > > systems since the early 80's....however, if the CO is old, it will work > > as described. > > What is a CO ?- Central Office Hide quoted text - > > - Show quoted text - |
| 05 May 2008 18:17:23 |
| Lord Garth |
| Re: DSL phone line |
"Stumpy" <perilmung@spamnet.con > wrote in message news:KfGdnY6Y9eEXDoLVnZ2dnUVZ_oCvnZ2d@earthlink.com... >>> The polarity could be an issue, answering, automation machines like >>> Faxes and the like used to detect the phone polarity to indicate an >>> on/off hook on the other end. >>> the polarity used to flip when the party on the other end picked up >>> the line and when they drop the line, your polarity would switch back. >>> This is how answering machines can detect you dropping the line and >>> not complete the answering message. >>> >>> I don't know if your fax machine is actually detecting this. It may >>> think it's already connected. >> >> >> These polarity changes have been designed out of newer switching >> systems since the early 80's....however, if the CO is old, it will work >> as described. >> > > What is a CO ? That's the Central Office at the telephone exchange. This is where all the telephone signaling like ringing / ringback, battery are created. |
| 05 May 2008 17:22:07 |
| Stumpy |
| Re: DSL phone line |
>>> >>> These polarity changes have been designed out of newer switching >>> systems since the early 80's....however, if the CO is old, it will work >>> as described. >>> >> >> What is a CO ? > > That's the Central Office at the telephone exchange. This is where > all the telephone signaling like ringing / ringback, battery are created. > > Well, that wouldn't be my problem. Major city, recent growth, dense population, I'll bet the CO equipment is less than 10 years old. I'm willing to run over and turn on the second computer when I have to. It's possible I inadvertently changed a software setting when I added the wireless card and made a new connection. |
| 05 May 2008 19:40:22 |
| Lord Garth |
| Re: DSL phone line |
"Stumpy" <perilmung@spamnet.con > wrote in message news:2cednXWEyqQyOYLVnZ2dnUVZ_rKtnZ2d@earthlink.com... >>>> >>>> These polarity changes have been designed out of newer switching >>>> systems since the early 80's....however, if the CO is old, it will work >>>> as described. >>>> >>> >>> What is a CO ? >> >> That's the Central Office at the telephone exchange. This is where >> all the telephone signaling like ringing / ringback, battery are created. >> >> > > Well, that wouldn't be my problem. Major city, recent growth, dense > population, I'll bet the CO equipment is less than 10 years old. > > I'm willing to run over and turn on the second computer when I have to. > > It's possible I inadvertently changed a software setting when I added the > wireless card and made a new connection. If you were asking about a remote controlled power switch, there are off the shelf solutions such as the old X-10 powerline controller and an appliance module or their RF equivalent version which comes with a key fob transmitter. You could also decode touch tones and activate an outlet though this solution will require some engineering. Lastly, a length of CAT5 cable could be used to carry the control signals in a current loop for a very long distance as well. |
| 06 May 2008 01:06:55 |
| Doug Miller |
| Re: DSL phone line |
In article <OtydnRCDcdiAvILVnZ2dnUVZ_oGjnZ2d@earthlink.com >, "Stumpy" <perilmung@spamnet.con> wrote: >We just switched over to DSL from modem on home computers. Put DSL filters >on the handsets in the house and also on the cord going to the computer >modems. How's that workin' out for ya, filtering out the digital part of the signal before it gets to the computer? -- Regards, Doug Miller (alphageek-at-milmac-dot-com) Join the UseNet Improvement Project: killfile Google Groups. http://www.improve-usenet.org Get a copy of my NEW AND IMPROVED TrollFilter for NewsProxy/Nfilter by sending email to autoresponder at filterinfo-at-milmac-dot-com You must use your REAL email address to get a response. Download Nfilter at http://www.milmac.com/np-120.exe |
| 05 May 2008 18:59:31 |
| Stumpy |
| Re: DSL phone line |
>>We just switched over to DSL from modem on home computers. Put DSL >>filters >>on the handsets in the house and also on the cord going to the computer >>modems. > > How's that workin' out for ya, filtering out the digital part of the > signal > before it gets to the computer? > > -- > Regards, > Doug Miller (alphageek-at-milmac-dot-com) > Mostly good. The digital part of the signal goes directly to the wireless DSL gateway modem/router for internet connectivity. The filters remove the digital part to the in computer-modem so the XP fax console should work. I've got a 50% success rate. Lately that's typical for me. |