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

[John Novack]

If this is an emergency phone situation then I would question the wisdom 
of even considering using Asterisk.
Conventional telephony solutions exist that will easily cover the loop 
length and provide the reliability that should be required  by risk 
management in such a situation.

John Novack

asterisk-users at rogg.is wrote:
> Appreciate all your input folks. Much of it very helpful in the greater
> context of the initial question.
>
> Thank you for the suggestion of using various wireless devices, but I'm
> stuck with fixed wiring since this is a security/emergency phone(s)
> installation underground in large tunnels.
>
> Also, switching to VOIP is not really the answer here because then I'm
> forced to solve a lot of power, repeaters/switches problems that arise. So
> I'm actually worse of than using the analog connections I think.
>
> I do have some control over the wiring/cable chosen for this project but
> still forced to find a solution where I can feed the analog "phone line" the
> total 3km line distance.
>
> I would love to find a way to do this in the Asterisk context with some sort
> of FXS feed, either from Digium (or compatible) hardware or any of the
> available ATA boxes. The Sapura box suggestion may be something and I'll
> look closer into that as well as continuing to look for other ways to do
> this.
>
> tnx!
>
> Baldvin
>
>   
>> -----Original Message-----
>> From: asterisk-users-bounces at lists.digium.com [mailto:asterisk-users-
>> bounces at lists.digium.com] On Behalf Of Hans Witvliet
>> Sent: 26. maí 2009 19:42
>> To: novackster at gmail.com; Asterisk Users Mailing List - Non-Commercial
>> Discussion
>> Subject: Re: [asterisk-users] Maximum cable length for analog phone
>> from FXS port
>>
>> I would suggest making a wifi connection with directional hi-gain
>> antenna's.
>> Ans a small box at the other end. Have a look at:
>> http://www.fit-pc.net/fitpc-2-p-2.html or http://www.fit-
>> pc.info/downloads/handleidingen/fit_pc_2_eng.pdf
>>
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>
>
>
>
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