hea,

I'm about to get DSL in my office and i was wondering whether or not i
had to put filters on the phone jacks in my office which i don't use
on? I remember hearing something about that once, but only vaguely. I
know this doesn't exactly pertain to home automation, but i couldn't
find a board to put it on (i'm open to suggestions though).

Dan Irwin wrote:

> hea,
> 
> I'm about to get DSL in my office and i was wondering whether or not i
> had to put filters on the phone jacks in my office which i don't use
> on? I remember hearing something about that once, but only vaguely. I
> know this doesn't exactly pertain to home automation, but i couldn't
> find a board to put it on (i'm open to suggestions though).
You do not need filters on unused jacks. 

You do need a filter in front of everything EXCEPT the DSL modem. You can do
it at least two ways.

1. Put a filter on each phone, analog modem, fax, etc. Everything that is
NOT a DSL modem gets a filter. One source of inexpensive filters is:
http://www.allelectronics.com part no. FTR-100 at $1.50 each. 

2. Star out two lines from where your phone line comes in. Run one line to
your DSL modem. Run the second to a DSL filter and then from there to your
existing devices. Depending on the existing wiring you MAY get better speed
this way since the DSL signal only goes where it is used; the rest of the
wiring doesn't act as an antenna to collect noise.
-- 
Keith Bowers - Thomasville, NC

"Dan Irwin" <harryguy082589@aol.com> wrote in message news:2a779348.0409021758.4374f6ca@posting.google.com...
> hea,
> 
> I'm about to get DSL in my office and i was wondering whether or not i
> had to put filters on the phone jacks in my office which i don't use
> on? I remember hearing something about that once, but only vaguely. I
> know this doesn't exactly pertain to home automation, but i couldn't
> find a board to put it on (i'm open to suggestions though).

Whether DSL filters are needed depends on how the DSL service is
provisioned.  The installer may run a separate DSL line to those
locations where you need a connection.

The use of filters may be not warranted if there is a significant
number of telephone sets.  The installer will know how best to
isolate the DSL service from your phone service.

> I'm about to get DSL in my office and i was wondering whether or not i
> had to put filters on the phone jacks in my office which i don't use
> on? I remember hearing something about that once, but only vaguely. I
> know this doesn't exactly pertain to home automation, but i couldn't
> find a board to put it on (i'm open to suggestions though).

DSL can be run on the same pairs as telephones.  It can come that way down
the pole.  You may want to consider, however, that it's best to split off
the DSL signal at one point and use a single filter.

That way the joined signal that comes down from the pole would feed into a
splitter.  One side would go to the DSL modem.  The other side would go
through a DSL filter and then off to ALL other regular telephones.  This way
you only need ONE filter.

It does mean you'll have to pick a location for the DSL modem and have a
line running to it.  Most of the time a DSL line is a 'set-and-forget' sort
of thing.  You run the line to the DSL modem and then ethernet to a network
router or firewall box.  They're usually small enough to stick on a shelf
near the telco distibution point.

-Bill Kearney

"Dan Irwin" <harryguy082589@aol.com> wrote in message
news:2a779348.0409021758.4374f6ca@posting.google.com...
> hea,
>
> I'm about to get DSL in my office and i was wondering whether or not i
> had to put filters on the phone jacks in my office which i don't use
> on? I remember hearing something about that once, but only vaguely. I
> know this doesn't exactly pertain to home automation, but i couldn't
> find a board to put it on (i'm open to suggestions though).


Its better than dial up but cable is the only way to fly now days. I had dsl
until the cable company when digital. What a difference from dsl


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> Its better than dial up but cable is the only way to fly now days. I had dsl
> until the cable company when digital. What a difference from dsl

Yes it is different.

You get crappy TOS with prohibitions against running servers and no 
possibility of fixed IP addresses.

Your data on cable is available to your cable subscribing neighbors.

http://www.theregister.co.uk/2004/02/05/cable_modem_hackers_conquer/

"As long as the customer has the actual hardware in their hands, the 
customer will always be able to change what he has."

On Sat, 04 Sep 2004 10:36:47 -0400, Lewis Gardner wrote:
> 
>> Its better than dial up but cable is the only way to fly now days. I had dsl
>> until the cable company when digital. What a difference from dsl

I don't necessarily agree with the above (Lewis you didn't write that
but I don't remember who did).

> You get crappy TOS with prohibitions against running servers and no 
> possibility of fixed IP addresses.
> 
> Your data on cable is available to your cable subscribing neighbors.
> 
> http://www.theregister.co.uk/2004/02/05/cable_modem_hackers_conquer/
> 
> "As long as the customer has the actual hardware in their hands, the 
> customer will always be able to change what he has."

One, very important, thing to point out here. The cable companies
check the configs from time to time. If you are uncapped they take you
to court and disconnect you from the service. You may be able to
change the config but they can still unplug you.

-- 
Linux Home Automation         Neil Cherry        ncherry@comcast.net
http://home.comcast.net/~ncherry/               (Text only)
http://linuxha.sourceforge.net/                 (SourceForge)
http://hcs.sourceforge.net/                     (HCS II)