[asterisk-users] Maximum cable length for analog phone from FXS port

[Heath Roberts]

On Tue, May 26, 2009 at 10:09 AM, <asterisk-users at rogg.is> wrote:

>  I am looking for details of the maximum allowed/usable/effective
> wire/cable length of the connection from a FXS port of Digium analog cards
> to the analog telephone handset.
>
>
>
> To clarify my intention, I need to have an analog telephone connection to
> my asterisk box that is 3000 meters (3km) away at least. If you have any
> details of ATA boxes or other similar devices that I could use to do this,
> I‘d appreciate your input. It must be able to use a regular analog telephone
> handset on the far end.
>
>
>
> I‘ve searched high and low and either I‘m not clever enough in using the
> right terms for this or it is rarely documented?
>
I've not seen a high-current ATA, but you could probably add a KIT8L from
here: http://www.sandman.com/longloop.html to a regular terminal adapter to
boost the loop voltage/current.

--
Heath Roberts
htroberts at gmail.com
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