[Asterisk-Users] Digium TDM400 Failover on Power Loss

[Bill Ford]

I'd use a relay in place of the switch. When the relay is energized,
the POTS lines are connected to the server, when the relay is
de-energized (power fail) the relay is connected to the power fail
phone.

A good selection of relays can be found at:

http://www.allelectronics.com

Bill 

On Apr 7, 2005 2:21 AM, Mike Sander
<mike at corporatebankinginternational.com> wrote:
> I know there are work-arounds for this, but I'm going to ask anyway.
> 
> I'm looking for a way to automatically failover a TDM422B (2FXO, 2FXS)
> when the power dies.
> 
> This is again for a rather paranoid client.
> 
> Options so far:
> - I will be installing a redundant power box in the server with a UPS.
> - Wire the FXO to a double-throw switch by hand so if power dies the
> client can just flick the switch over from the Asterisk box to the
> analogue phone.
> 
> I know the Sipura-3000 will automatically do this, but obviously a
> computer cannot set this up on the PCI card with it's last dying gasp for
> power.
> 
> Is there any other way this can be done - especially if the box sits in a
> room in the basement which is not easily accessible during a power cut, so
> the customer doesn't really want to go down there to flick the switch
> "override"
> 
> Appreciate your help.
> 
> Mike
> 
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users at lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>