DSL splitter set up?

December 22, 2007 at 07:38:40
Specs: WinXP, 1.5Ghz/256mb

I am thinking about getting DSL. I would like to install a filter where the line comes into the house rather than install a filter on each phone. I found the Wilcom PS15 on the net which allows you to split lines from the inside. My home does not have a NID on the outside. The line comes in from underground to a NID in my basement, which is just two terminals shaped like a Y with the red and green wires attached to each terminal. From there it goes to a 48-terminal block, where all the phones are connected. If I connect the wires that go to the jack where the DSL modem is going to be plugged in to the terminals marked modem on the filter, will this work? I seen where it's recommended that the wires should be data grade. Is it absolutely necessary they be data grade? I ask because if I just plugged the dsl modem into the jack and had filters on all the phones, it would use the existing phone wires any way. Also, all phones are connected through a single wire, which has other wires in it, which go into the terminal block. I would have to run another cable along side the existing one to separate the modem out while disconnecting the existing connection at the terminal block and the jack. This seems like more work and may not be necessary? In any case, I never dropped lines before and would not know how to proceed. Thanks for any advice you can give. I'm angling towards just using the existing wires. What do you think?

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December 22, 2007 at 13:09:10

Yes you can. You don't need a special filter. Just feed the terminal block with the filter. Then disconnect the line going to the branch that will be connected to the modem and connect it before the filter.

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December 22, 2007 at 18:10:05

Can you describe in detail what you're proposing? Are you speaking of the plain jane in line filter you would put on a phone which is supplied by your ISP? I'm not getting a clear picture of "just feed the terminal block with the filter" Thanks.

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December 23, 2007 at 03:11:17

What you would do is (1) unplug the existing connection of the terminal block to the NID, (2) plug a 2-to-1 splitter into the NID, (3) plug the line filter into one side of the output of the splitter, (4) plug the terminal block into the line filter. This takes care of the phones. The plain jane line filter is capable of handling all the downstream phone equipment. Now the DSL modem will be connected using the other side of the splitter. You may either run a new wire or disconnect an existing outlet from the terminal block and extend the leads to the splitter. In my case I just moved the connection on the terminal block and punched a short phone cord to plug into the splitter.

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December 24, 2007 at 09:26:37

Thanks a lot. Just to let you know; I have no rj-11 connectors on the NID or anywhere else. Everything is bare wires connected to screw terminals. Is what your proposing still feasible?
The splitter I mentioned in my first post has both screw terminals and rj-11 jacks. Seems to me this would be easier to do since all I have is screw terminals to work with. What's your opinion?
Thanks for your help.

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December 24, 2007 at 20:35:04

Screw terminals are fine. You don't even need a formal splitter just two leads from the terminals being split

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December 29, 2007 at 18:44:06

I forgot to mention that all the phones are connected through one wire that has other wires in it, including the wire to where the DSL modem will be. Will this cause any interference with either the DSL or the phones? I mean if use all existing wires and filter the way you said and if all the wires are together in a single wire; is there a chance that there will be cross talk and maybe a call coming in and getting kicked off DSL? Thanks for your responses!

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December 30, 2007 at 01:01:46

Probably should be OK. Only a chance of capacitively coupled ring signal to affect the DSL.

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December 31, 2007 at 15:54:58

Thanks for hanging in here with me on all these questions but I'm trying to avoid any hassles which would result in changing over to DSL. What do you mean by a "capacitively coupled ring signal"? and why "only a chance"? The little I know about these things includes the fact that the voltage on the line kicks up when the phone rings; is this what you mean? The wiring in my home is 30 plus years old with four prong phone jacks. I do not have cat5 cable. Are you saying there's a possibility I could be knocked off of DSL by the phone ringing? Remember: all the phones are connected by two wires each inside the main wire both at the jack and the terminal block. I'm thinking since this is such old wiring anything could happen. Am I a candidate to have the house re-wired? Or what about just having a cat5 cable installed for the modem? Fiber will soon be available in my area but it is much more obtrusive to install; they say a tech has to be in your home 5-6 hours to install it! You see I'm in a bit of a dilemma. On the one hand, I don't want someone disrupting the house for almost a whole day and on the other hand my wiring is old not leaving me too much options other than trying to work with the existing wiring. What do you think?

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December 31, 2007 at 16:00:58

Forgot to ask you: In your case, did you retain the existing wiring? Is it wiring like I described? If so, what's your experience been. Thanks a lot again for your advice.

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December 31, 2007 at 21:45:52

At home I had phone lines from the early 1950's. The DSL would drop the connection frequently probably from noise. This was black rubber covered copper plated steel wires and screw (bolt) terminal blocks. I replaced it with CAT3 wires and type 66 terminal block for a splitter. No problems for more than a year (until the telephone company/internet provider was sold). In the office we had beige phone wires running in metal-studded walls. RJ-12 (2 lines). Originally just daisy-chain wiring. Now the phone lines are split by a terminal block with the DSL modem and router mounted on the wall nearby. The line with DSL service was split by installing two phone jacks in parallel. One jack goes to the DSL modem, the line filter is plugged into the other. A short phone cord connects the filter to the terminal block.
Your wiring is of an intermediate age. I would try to use the existing wiring and run a line for DSL if needed.

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January 2, 2008 at 19:44:31

Happy New Year! I think it's finally sinking in. Only one thing: where can I get a 2 to 1 splitter? I've searched the net but haven't come up with anything.
Let me know if I'm on the right track:
1)Disconnect incoming line from terminal block
2)install 2 to 1 splitter
3)install filter on one side of splitter
4)connect filter to terminal block
5)disconnect wire that goes to modem and reconnect to another terminal block
6)run another wire from other side of splitter to new terminal block with modem line

One other question: will the set up be smart enough to know when it's data or voice? I mean it seems that only one wire is now going to the phones and one to the modem with this set up. Right now there are TWO wires going to the terminal block.

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January 3, 2008 at 04:52:56

A telephone circuit consists of two wires (a pair - typically red and green, yellow and black, blue and blue/white, or orange and orange/white).
You don't need to buy a splitter. There are no components in it. Just connect two wires to each side of the pair. One pair goes to the DSL line the other pair goes to the DSL filter and then to the telephone connections. Remember the filter keeps the DSL signal from the telephones so it is connected to the telephones. The DSL modem is connected directly.
Each connction has two wires.

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June 24, 2008 at 10:39:05

Thanks for the tip wizard-fred!

My local phone company is offering a bounty for switchers from cable to DSL so I am considering the offer and will certainly put your suggestion in play after switchover.

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July 11, 2008 at 19:42:17

Instead of connecting your DSL splitter to on premises wiring, wire it to a phone cord then plug it in. You have then 'created' rather than 'wired in' a device modifying data and/or voice flow and it's immediately connectable/disconnectable plus portable.

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