[Asterisk-Users] Ring power on Analog adapters

[mattf]

Hello,

Ok, I've tried tinkering with the ring voltage (this is an editable variable
on the Sipure SPA-2000) and I still can't get it to work. I plug a generic
POTS line in and it works, I plug an analog port from our old Comdial PBX in
and it works. 

with the sipura adapter I've tried changing the ring voltage in the range
(20V to 90V) and the frequency from 10Hz to 100Hz both in 5 step increments
and nothing seems to work.

Do these analog -> SIP VOIP adapters truely supply the 24V that a POTS line
supplies?

Anybody have any ideas why this fax machine won't work with any analog
adapter I've tried?


Thanks,

MATT---


-----Original Message-----
From: Jorge Mendoza [mailto:mendoza at tcc.com.pe]
Sent: Monday, November 24, 2003 2:07 PM
To: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] Ring power on Analog adapters


24 VDC and 20 mA are loop current parameters. Ringing are into the range 
of 50-90 VAC and 15-30 Hz.

Jorge

mattf wrote:

>Hello,
>
>I have a big old Fax machine that will only pick up a ring at 24volts and
>20mA(minimum) ring[according to the technical specs manual]. None of my SIP
>-> Analog phone adapters supply this:
>
>Cisco - 50 volts
>SIPURA - 70 volts
>Handytone - who knows, but it doesn't work
>
>can anyone tell me if there are any analog adapters or channel banks that
>can send a 24V 20mA ring signal?
>
>Also, does anyone know what voltage the Digium analog PCI cards send out
for
>ring?
>
>Thanks,
>
>MATT---
>_______________________________________________
>Asterisk-Users mailing list
>Asterisk-Users at lists.digium.com
>http://lists.digium.com/mailman/listinfo/asterisk-users
>  
>


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