| Author |
Message |
John Albert
Guest
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 Posted:
Tue Nov 09, 2004 11:01 am Post subject:
Changing from room filters to a splitter - info? |
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Hello all -
I just came back from a friend's house, we both have DSL.
My setup uses a single "splitter" at the network interface outside the house
(I was there when the installer put it in, but don't recall whether the
splitter is installed on "my side" of the network interface, or the phone
company side). I then utilized the red/green phone wiring for my voice and
yellow/black for DSL.
My home setup works smoothly without problems. No "interference" between the
voice and DSL lines at all.
My friend's setup (also SBC) uses the multiple "filters" at each phone jack
location, instead of a single splitter and "dual phone lines". He _does_ have
internal 4-conductor wiring, so that can be easily changed.
He is having problems using the phone and DSL simultaneously. If the phone is
in use, the DSL connection sometimes slows down or stops. In addition, the
phones often have the "carrier sound" of the DSL signal in the background.
This suggests to me that either the filters aren't doing their job, or
somewhere his wiring is incorrect.
I would like to obtain a splitter, insert it into the network interface, go to
a 4-wire setup, remove the "filters", and see if that makes a significant
difference (I think it will).
Has anyone else made such a change on their own? (i.e., without calling for a
phone company tech visit)
I would like to install the splitter in the network interface outside his
house. Can it go into the "user side" of the box, or does it have to go in the
"company side"?
What make and model of splitter would you folks recommend?
Thanks,
- John |
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Kay Archer
Guest
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| Posted:
Tue Nov 09, 2004 11:57 am Post subject:
Re: Changing from room filters to a splitter - info? |
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[snipped some]
| Quote: |
He is having problems using the phone and DSL simultaneously. If the phone
is
in use, the DSL connection sometimes slows down or stops. In addition, the
phones often have the "carrier sound" of the DSL signal in the background.
This suggests to me that either the filters aren't doing their job, or
somewhere his wiring is incorrect.
Bad or missing filter is correct. |
| Quote: | I would like to obtain a splitter, insert it into the network interface,
go to
a 4-wire setup, remove the "filters", and see if that makes a significant
difference (I think it will).
There are instructions at www.dslreports.com (or at least links to such |
instructions).
There are three or four ways listed in the FAQ here
http://www.dslreports.com/faq/sbc
one here
http://www.dslreports.com/faq/1463
which links to here
http://www.dslreports.com/forum/remark,1012399;reverse=0;root=remark,1012399;mode=flat
| Quote: | Has anyone else made such a change on their own? (i.e., without calling
for a
phone company tech visit)
I would like to install the splitter in the network interface outside his
house. Can it go into the "user side" of the box, or does it have to go in
the
"company side"?
What make and model of splitter would you folks recommend?
Thanks,
- John |
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George Pontis
Guest
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| Posted:
Tue Nov 09, 2004 9:16 pm Post subject:
Re: Changing from room filters to a splitter - info? |
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In article <41905D4B.2FCB0E85@snet.net>, j.albert@snet.net says...
| Quote: |
I would like to install the splitter in the network interface outside his
house. Can it go into the "user side" of the box, or does it have to go in the
"company side"?
What make and model of splitter would you folks recommend?
|
Siecor makes good quality indoor and outdoor splitters. The outdoor ones look like
a gray telco box. I have also seen splitters that snap into a spare line slot on
the newer telco boxes. The best ones have 6 wires or screw terminals; the four
wire ones are simpler filters that are intended to be installed on the incoming
line before it splits off to many jacks. Even the simpler ones are a better
solution than Try ebay or hippovariety.com.
You mention red and black wires. That would be associated with old style telephone
cable which is inferior in terms of signal coupling between the pairs and losses.
The hot setup is to wire up the DSL circuit and the telephones with the CAT-5.
Even if you can't replace all of it, it is beneficial to replace as much of it as
you can easily reach if the lengths are significant (say 50' or more). Perhaps you
run a new CAT-5 cable from the DSL splitter to the modem using CAT5 and leave the
yellow/black pair for a spare phone line.
The color equivalents are:
Green <-> White/Blue
Red <-> Blue
Black <-> White/Orange
Yellow <-> Orange |
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John Albert
Guest
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| Posted:
Wed Nov 10, 2004 5:32 am Post subject:
Re: Changing from room filters to a splitter - info? |
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Thanks to those who responded to my original posting about converting a
friend's DSL installation from individual phone jack filters to a single
splitter at the network interface.
I checked my own network interface and found the following. The interface box
itself is a Keptel SNI-4600. I opened "my side" with a screwdriver, and found
two "modules" within:
- A two line "test module" (at least I _think_ that's what it's called), that
has four screws on top (outwardly facing): red, green, yellow, and black.
- A Keptel LPF-200 "ADSL POTS splitter module", with two screws: read and green.
The wiring from the network interface, "through" the splitter, looked simple
and straightforward: red-to-red and green-to-green, connected to the test
module. I noticed that yellow and black wires from inside the house (which I
use for my DSL line only) were connected _directly_ to the network interface -
no intervening "split".
I recall that the purpose of the splitter is to "siphon off" the lower-end
voice frequencies (which then go to all the "voice jacks", is that correct?
I would like to re-create this scheme on my friend's home wiring, if possible.
I haven't examined his outside network interface yet, but I did check down the
cellar and he has the standard 4-wire scheme coming into the basement from outside.
Question: can anyone provide a link to a vendor that sells Keptel products
outright to end-users? I tried a google search on "keptel" and also "keptel
lpf-200" with no luck in locating a site that provided a list of product
numbers for ordering.
I mention this because I can't seem to find the Keptel LPF-200 module
available anywhere.
Question: does it make a significant difference if the splitter is installed
_just inside_ the house wall, rather than directly into the homeowner side of
the network interface box outside? We're talking the distance of about 3-4
feet here. At that point, just inside, I will split off the voice lines to
red/green and dedicate yellow/black to the DSL line.
I _have_ seen some larger "splitter boxes" available on ebay, etc. But these
look to be intended for outside mounting next to the network interface box.
There would be no problems locating one of these just _inside_ the house, say,
within 2-3 feet away from the outside interface? I may have to do that if I
can't locate a small, snap-in module like the LPF-200.
Thanks,
- John |
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John Albert
Guest
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| Posted:
Wed Nov 10, 2004 6:04 am Post subject:
Re: Changing from room filters to a splitter - info? |
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Re my previous posting:
<< I checked my own network interface and found the following. The interface
box itself is a Keptel SNI-4600. I opened "my side" with a screwdriver, and
found two "modules" within:
- A two line "test module" (at least I _think_ that's what it's called), that
has four screws on top (outwardly facing): red, green, yellow, and black. - A
Keptel LPF-200 "ADSL POTS splitter module", with two screws: read and green.
The wiring from the network interface, "through" the splitter, looked simple
and straightforward: red-to-red and green-to-green, connected to the test
module. I noticed that yellow and black wires from inside the house (which I
use for my DSL line only) were connected _directly_ to the network interface -
no intervening "split".
I recall that the purpose of the splitter is to "siphon off" the lower-end
voice frequencies (which then go to all the "voice jacks", is that correct?
I would like to re-create this scheme on my friend's home wiring, if possible.
I haven't examined his outside network interface yet, but I did check down the
cellar and he has the standard 4-wire scheme coming into the basement from
outside. >>
Oops, just realized something I hadn't considered already.
My house - before DSL - was wired for _two_ lines. When I had DSL installed, I
had the second line disconnected. HOWEVER - the test module in my side of the
network interface has the four connecting screws for 2 lines. Thus, when the
install guy visited, I explained that the house was already wired for two
lines (with yellow/black for exclusive use by DSL), and he made up the
splitter connection right in the box - possibly with a connection scheme that
would not be possible with only a 2-connector test module. (I may not know
what I'm talking about here)
My friend, however, has always had only a single line. I'm guessing that when
we check _his_ network interface, it is going to have a test module with only
two screws, the traditional red/green.
In that case, would I do better to get a splitter _box_, which takes the
red/green "network" input, and then splits it into two distinct lines
(red/green and yellow/black)? Seems like it would be easier to do this just
inside the basement, where the single phone line enters the house.
Thoughts?
- John |
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George Pontis
Guest
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| Posted:
Wed Nov 10, 2004 11:16 am Post subject:
Re: Changing from room filters to a splitter - info? |
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In article <41916918.D2D62AD2@snet.net>, j.albert@snet.net says...
| Quote: | ...
In that case, would I do better to get a splitter _box_, which takes the
red/green "network" input, and then splits it into two distinct lines
(red/green and yellow/black)? Seems like it would be easier to do this just
inside the basement, where the single phone line enters the house.
Thoughts?
|
No problem to do this in the basement. The only concern is that the wires from the
telco NID should go directly to the splitter and not fan off into the house wiring
anywhere until after the splitter.
The Keptel splitter is really a filter that removes and isolates the DSL
frequencies from the voice pair, but the full voice+DSL signals go to the modem.
They are fine. The Siecor splitters are somewhat more deluxe because they also
filter and isolate the voice band from the DSL pair. Since you are going to be
working inside, you can save some money and get an indoor version of the splitter.
The ones with screw terminals are easier to work with at this point than the ones
that use modular connectors.
Both Keptel and Siecor splitters are available on ebay right now, a number of
each. A google search for "Siecor indoor dsl splitter" will find other stores that
sell them.
If you want to make a professional job out of this you could mount a piece of
plywood on the wall, say 2' x 2', then use that to attach the box(es) and a 66
punch down block. The 66 block provides a nice organized way to connect a bunch of
extensions that can be disconnected easily for troubleshooting, moving to a
different line, etc. This assumes that all the extensions make a home run to this
location... |
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wkearney99
Guest
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| Posted:
Sun Nov 14, 2004 4:57 pm Post subject:
Re: Changing from room filters to a splitter - info? |
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| Quote: | In that case, would I do better to get a splitter _box_, which takes the
red/green "network" input, and then splits it into two distinct lines
(red/green and yellow/black)? Seems like it would be easier to do this
just
inside the basement, where the single phone line enters the house.
Thoughts?
No problem to do this in the basement. The only concern is that the wires
from the
telco NID should go directly to the splitter and not fan off into the
house wiring
anywhere until after the splitter.
|
I'll second this idea. Pull a "bare" unfiltered line off specifically to
the DSL modem and then run a filtered line for ALL other voice lines,
regardless of how they might be wired inside the home. Doing in the
basement just inside the NID is often the simplest place.
Many houses have 4 wires (2 pairs) going to all sockets. You could leave
the raw signal on that Y/B pair and use a 2 line spliter. The sort that has
3 sockets. One for both lines and the other two with each line as "line 1"
in that socket. But bear in mind that if anyone connects an actual two line
device they'd screw up the DSL signal. Thus it's better to just pull a line
to wherever the DSL modem needs to live and filter EVERYTHING else.
| Quote: | If you want to make a professional job out of this you could mount a piece
of
plywood on the wall, say 2' x 2', then use that to attach the box(es) and
a 66
punch down block. The 66 block provides a nice organized way to connect a
bunch of
extensions that can be disconnected easily for troubleshooting, moving to
a
different line, etc. This assumes that all the extensions make a home run
to this
location...
|
They do make smaller 66-block style binding posts. Something like 12 pairs
or something. I've got my internal 'house' wiring running to one. I
cheated just pulled a pair from the punch-down blocks to a pair of RJ11
boxes. I put a regular RJ11 filter in-between them. That way I didn't have
to buy anything extra. And if the filter goes bad I can just use any
garden-variety filter (the modem came with 4 of them) to replace it, instead
of having to buy another 'fancier' splitter.
When using blocks keep in mind that if you want to 'split' the signal you
can't punch more than one wire into a connector. But you CAN loop the wire
THROUGH a connector and onto other binding posts. That's why a punch-down
tool has double-sided blades; one for punching down and cutting the line and
one for just punching it down.
-Bill Kearney |
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