POTS splitter. and flat telephone cables with rj11

[testforit2]

Hi all,

I need your help.

I have a dsl connection... What the Telco guys did was they put a splitter from the main box. When I take out that splitter, I experience dsl disruption usually when I use the phone long enough. My question is, if I use the POTS splitter once again, how long (max) should the tel line (flat wire with rj11) be from the pots to the ADSL modem? I'll try to explain further:

Here's the setup:

MAIN LINE ---> POTS --> (phone) Distributed for 5 or 6 phones around.
--> (DSL) -----> ADSL modem

Here's what I'm really concerned of:

The POTS splitter provided by our telco has basically 3 ports for rj11 jacks.. (one for line, one for phone unit, one for modem)

From the POTS, should I use the thin flat telephone wire to distributed voice phone connection all over the place? or should i buy a phone box then use the round cable again (same tel line used for the main switch)? I would prefer using the round cable since it has already been laid around the house.

Would this diagram be possible:

MAIN--(roundwire)--> POTS --(flatwire)--> PHONEBOX --(round)--> Distributed in the entire house (5 or 6 phone units)

I found an article saying:

"A splitter electronically isolates the lower frequencies of the telephone signal from the higher frequencies of the DSL signals."

If I add a phone box and round cable again, would it defeat the purpose of the splitter? Would voice and data get congested again? What do folks with multiple phones in the house do to avoid this dilemma?

Another question is: if I use this rj11 connection from the pots to the adsl modem, what is the maximum length of it? Is this ok? I'm worried that the flat telephone might not be as good as the round tel cable.

Desperately needing your help...
Thanks.

______________
Edit:

Hi,

I would like to make the diagram above better.

MAIN LINE ---> POTS (phone port) --> Distributed for 5 or 6 phones around.
...................... POTS (DSL port) --> ADSL modem

Thanks.

Moderator note: please don't double post, kindly use the Edit button when you wish to add something - capi

[woodyt]

I assume the flat wire you refer to is like the wire you plug from the rj11 to the phone. DO NOT USE THIS for internal wiring. It will give you problems. Round wire is what is called twisted pair. Flat wire is untwisted. Flat is ok to as a junction from the wall to the phone, but it can pickup interference if used as a feeder. The max amount of wire shouldn't be a factor unless you are running a huge amount like 2000 ft. The splitter filters the dsl signal from the pots signal. The dsl signal must be filtered so you do not hear the data signal. The splitter you have eliminates the need for individual filters for each phone. There are a few ways you can wire your house. You should be able to use the existing wire. The preferred method is to have a home run(a dedicated wire run from the splitter to the modem). You most likley do not need this. You can wire 1 feed where you have your modem and split the signal and filter the phone. You can also use one pair of wires from the existing wire for the pots signal and the other pair for your modem. I'll try to diagram it below.







Telephone wire usually has multiple pairs inside. The colors here are standard 2 pair wire. These may vary per vendor or size of wire. (ex. cat 5 wire has 5 pairs with the colors W/BL-W/OR-W/GR-W/BR-W/S)

TELE--------------MAIN--------DSL-------------------MODEM
FEED.................BOX---------POTS-----------------ALL PHONES

________________________________________________________

...................................................---------------MODEM
--DSL----------SPLITTER AT RJ11---
...................................................-------FILTER---------PHONE


--POTS--------------ALL OTHER PHONE LOCATIONS

___________________________________________________________

--DSL-----Y/BK PAIR-----...............--Y/BK PAIR--RJ11-------MODEM
....................................------------
--POTS---R/GR PAIR-----...............--R/GR PAIR--RJ11-------PHONE
...........--------------ALL OTHER PHONES


Y=YELLOW
BK=BLACK
R=RED
GR=GREEN

[testforit2]

Thanks for the reply... i'm interested in the first diagram you've shown since i have researched on how to make a home run (it's kinda complicated)

and a filter is going to be expensive since i only need one connector for one LAN. (btw, do you need to add a filter to each phone even if you only hve one LAN. For example, if one using a phone on the 3rd floor while someone is using INTernet connection on the 1st, would it disrupt the broadband connection?)

Yes, the flatwire I'm referring to is exactly the wire from rj11 to the phone unit.

This is the main problem i have... as i split the TP (twisted pair)


TELE--------------MAIN--------DSL-------------------MODEM
FEED.................BOX---------POTS-----------------ALL PHONES


so from the telephone line (twisted pair) goes into the DSL POTS, then from there i got no other choice because the output are two rj11 jacks...

so i will be forced to add another phone box for the voice phones (is this ok?)

POTS --(flatwire)--- PHONE BOX ---(twistedpair, internal wiring)------everywhere

then just run the phone cable (about 10meters) to the dsl modem

POTS ----(flatwire, 10 meters internal wiring)--- modem (i believe you dont like this...

Btw, i only have one pots.. (im not sure if there should be two from the diagram)

and someone suggested to use UTP cat5 w/ rj11 instead of the flatwire... is this ok?

appreciate your help, sir.

Thank you very much...

**edit**

and also, when u said:

The max amount of wire shouldn't be a factor unless you are running a huge amount like 2000 ft.

do you mean twisted (round) or untwisted (flat)?

Thanks... and sorry for all the trouble...

ADMIN NOTE: Please refer to capi's note to you above - PCWriter

[woodyt]

TELE--------------MAIN--------DSL-------------------MODEM
FEED.................BOX---------POTS-----------------ALL PHONES


The main box in the diagram I assume is a splitter. The dsl and pots are the two separate feeds for the split signal. If you do it this way, you should be all set. This splitter is a lowpass filter. It lets the lower frequency (pots-plain old telephone service) thru for the phones and blocks the high freqs(data) so you don't hear it on your phone or disrupt the signal. using the internet in this way will not affect anything. Cat-5 is made for data so it will be better wire to use. You may be able to get away with the flat wire if you want to try it. The only problem with it is interference. Because it is not twisted, the field around the wire is larger the with twisted pair. So you may get interference from equipment like plugbars, transformers, etc. As far as amount of wire, dsl signals are distance sensitive. doesn't really matter the wire type but usually inside wiring isn't that much to effect the signal. Hope that helps.

[testforit2]

thanks! that really helped. we're building it now.

[woodyt]

let me know how you make out