Cable length between filter and modem

What is the maximum, sensible, cable length that can be used between an ADSL
filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable suffice
for this length or do I need twisted pair or even Cat5?

Common sense says that it all ought to be comparable with the telephone
cable runs before the filter -
but is that true.

Chris

I think my cable length (extension) is over 10 feet, and i get no probs

========

"Chris Watts" <(E-Mail Removed)> wrote in message
news:43660185$0$73620$(E-Mail Removed)...
What is the maximum, sensible, cable length that can be used between an ADSL
filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable suffice
for this length or do I need twisted pair or even Cat5?

Common sense says that it all ought to be comparable with the telephone
cable runs before the filter -
but is that true.

Chris

"Chris Watts" <(E-Mail Removed)> wrote in message
news:43660185$0$73620$(E-Mail Removed)...
> What is the maximum, sensible, cable length that can be used between an
> ADSL
> filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable
> suffice
> for this length or do I need twisted pair or even Cat5?
>
> Common sense says that it all ought to be comparable with the telephone
> cable runs before the filter -
> but is that true.
>
> Chris

Mine is about 25ft. Cheap cable, cheap modem (Speedtouch 330). No
problems.

Same, same exact.

========

"Cullen Skink" <(E-Mail Removed)> wrote in message
news:vYn9f.13226$(E-Mail Removed)...
"Chris Watts" <(E-Mail Removed)> wrote in message
news:43660185$0$73620$(E-Mail Removed)...

Mine is about 25ft. Cheap cable, cheap modem (Speedtouch 330). No
problems.

On Mon, 31 Oct 2005 11:32:53 -0000, "Chris Watts"
<(E-Mail Removed)> wrote:

>What is the maximum, sensible, cable length that can be used between an ADSL
>filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable suffice
>for this length or do I need twisted pair

Belkin do a 9m / 30' twisted pair RJ11-RJ11 extension, that would be
fine.

It all depends how weak your signal is, if you can only just scrape a
connection in the master socket a poor quality long extension could
take it out, but if you have a good signal with reasonable extension
cable you are adding a few metres onto a few km and it should be no
big deal.

Phil
--
Tiscali - dialup speeds at Broadband prices, see
http://bbs.adslguide.org.uk/postlist...&Board=tiscali

AOL - the unlimited ISP of choice for heavy downloaders.

Chris Watts wrote:
> What is the maximum, sensible, cable length that can be used between an ADSL
> filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable suffice
> for this length or do I need twisted pair or even Cat5?

As the filter does nothing at all for the ADSL signal, the distance is
irrelevant, provided that the overall loss on the line (from modem to DSLAM, via
your wiring, socket, drop wire, pole, u/g, cabinet, u/g, and exchange rack
wiring) is small enough to allow a workable signal through.

Twisted pair cable will pick up less environmental noise than flat extension
cable. Whether this is sufficient to push your noise levels above the point
where they mess with your ADSL signalling is subject to things in your
environment (i.e. what the cable runs past, sunspot activity, etc.)

Personally, I'd use CAT5 premises wiring (i.e. solid core) to wire in a
secondary telephone socket where the modem is situated. Stick a filter in the
front of the NTE5 master, and if you don't need a telephone at the modem's
location (and therefore don't need a filter there) convert the RJ11-RJ11 cable
to a far shorter (for neatness) RJ11-BT431.
(But then I wired the whole house with CAT5e UTP and STP some time ago; I shove
composite video and audio around on the STP, ethernet and telephony around on
UTP, your requirements undoubtedly vary)

"Chris Watts" <(E-Mail Removed)> wrote in message
news:43660185$0$73620$(E-Mail Removed)...
> What is the maximum, sensible, cable length that can be used between
an ADSL
> filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable
suffice
> for this length or do I need twisted pair or even Cat5?
>
> Common sense says that it all ought to be comparable with the
telephone
> cable runs before the filter -
> but is that true.
>
======================================

A few more yards of cable, over and above the very long length which
has come all the way from the telephone exchange, is not likely to
make any detectable difference. Use any sort of cheap and nasty
extension cable you like provided it has two wires in it.

======================================

Thanks guys for your replies - just what I needed to know.

Chris

"Chris Watts" <(E-Mail Removed)> wrote in message
news:43660185$0$73620$(E-Mail Removed)...
> What is the maximum, sensible, cable length that can be used between an
ADSL
> filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable
suffice
> for this length or do I need twisted pair or even Cat5?
>
> Common sense says that it all ought to be comparable with the telephone
> cable runs before the filter -
> but is that true.
>
> Chris
>
>
>
>

On Mon, 31 Oct 2005 11:32:53 -0000, "Chris Watts"
<(E-Mail Removed)> wrote:

>What is the maximum, sensible, cable length that can be used between an ADSL
>filter and an ADSL modem? I am thinking 3m to 5m. Will flat cable suffice
>for this length or do I need twisted pair or even Cat5?
>
>Common sense says that it all ought to be comparable with the telephone
>cable runs before the filter -
>but is that true.
>
>Chris
>
>
>
Just to add my two penneth worth. I recently installed Broadband at a
Charity Centre which only had one suitable incoming BT socket. It was
more convenient to put the filter at that point and run the cable to
the router/modem at the other end of the building approximately 120 ft
away.

I would say there is no problem, however, there has been a history of
having to rotate the DNS number every few weeks, I don't think that
this problem is associated with the cable length.

KM

km wrote:

> I would say there is no problem, however, there has been a history of
> having to rotate the DNS number every few weeks, I don't think that
> this problem is associated with the cable length.

Youre not with an ISP that refuses to publish thier DNS cache/server addresses
on the grounds that the servers in question have dynamic IP's are you? There is
atleast one of these idiots who think they are an ISP about.

Or are you talking about the fact you have a dynamic IP address assigned to you
by your ISP, which is a perfectly normal feature of consumer broadband, and you
are trying to run services on it?

Jim