  l0thar
join:2005-12-29 Far Far Away
| reply to Quake110 Re: My "Ghetto" demarc
 Original Phone Wiring |  New panel before installation |  Completed panel installation |
I had a similar situation at my home too - that black block is a 'Telephone Protection Device', and in the absence of a proper Demarc box and jack, it becomes the de facto Demarc.
What I did - see pictures for details:
- disconnected all the wiring from the TPD.
- made a new wiring run from the TPD to my desk, using CAT5 networking cable, for better signal. This wiring run will be used exclusivelly for the DSL modem.
- cut a piece of scrap plywood and made a wiring panel for the phone system.
- Reinstalled the TPD and wired the incoming Bell line to it. Wired up the new Modem line to TPD as well. Added a telephone jack at that location, aslo connected to TPD directly.
- plugged in 2 telephone filters back to back into the new Demarc jack.
- connected the rest of the house phone wiring to the output of those two in-series filters. No other filters in use in the house, as all the lines are filtered right at the entry point. 
Happy with the results. My signal to noise ration varies, but I am pretty sure it's something external. Even when it goes very low, I still have full 3Mb/s sync and fast data transfers.
Also noticed that rebooting the modem (SS 6520) seems to improve the SNR resports for a while. |
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 kikimimi
join:2006-02-01 Windsor, ON | Man, if only I could make stuff like that... I dont wanna call bell to help me out in this situation mainly because of what they might charge me and my previous experience with the customer "service". |
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  Quake110
join:2003-12-20 Ottawa, ON
·Velcom
1 edit | reply to l0thar RG, your wiring is interesting and I'm motivated to do the same. But I have a few questions:
- Is the white box a regular phone jack? - You used a regular cat5 cable as a phone cable from the TPD (I guess it's the black thing) to the modem? Or, where can I buy a high quality phone cable?
Thanks |
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  l0thar
join:2005-12-29 Far Far Away
| said by Quake110 :- Is the white box a regular phone jack? - You used a regular cat5 cable as a phone cable from the TPD (I guess it's the black thing) to the modem? Or, where can I buy a high quality phone cable? Ah, glad that it might be helpful - I was quite proud of it myself. 
- Yes, The jack is a regular phone jack.
- Telephone service would require CAT3 twisted pair wiring. If you have a good Electrical Warehouse in your area, you could look for that. CAT5 is higher quality yet, as it has to carry network traffic and much higher frequencies. So, it's better, a bit of an overkill (4 pairs of wires, you only need and use one pair for the DSL line).
But CAT5 is guaranteed quality, and becoming easier to find, Home Depot has it, etc. I had some so used it. 
kikimimi, as stephen_d mentioned, the voltages in the phone line are never too high - the worst is if it rings, the ring is a solid voltage (54VDC if I am not mistaken, and you sure can feel that).
Some precautions can help you deal with it, like using insulated footwear, and not touching both wires at the same time. Trying to disconnect the incoming external wire and avoiding touching it is a good idea too.:)
This took me a few hours to do, but it is worth it, imo. |
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  BWolf6 Advanced User
join:2003-11-10 Marathon, ON 1 edit | Actually its 54VDC for dial tone.. But the ringing generator is like 30-60VAC..
It wont harm you but will sure give you a nice jolt. |
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  HiVolt 29 Premium join:2000-12-28 Toronto, ON clubs:
·TekSavvy Solutions..
·Bell Sympatico
| said by BWolf6 :Actually its 54VDC for dial tone.. But the ringing generator is like 30-60VAC.. It wont harm you but will sure give you a nice jolt. I thought its 48VDC, and ringer is around 90VAC. -- ·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´¯`·.¸¸.·´ |
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  im4fishing Premium join:2002-05-13 Thunder Bay, ON | That would be correct. Talk battery is ~48VDC and ring voltage is ~90VAC. |
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  Quake110
join:2003-12-20 Ottawa, ON | reply to l0thar Thanks RG, I hope to do this very soon. |
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