[Asterisk-Users] Sipura spa-2000 / 3000: surge protection

[Mark Phillips]

You would? Why not just put then on a small UPS and have done with it?

The UK has some of the cleanest electricity in the world.

Unlike the US (what a big shock that was, moving here) where brown-outs 
and over volts are common I've never needed to add protection devices to 
the UK supply.

Mark

Peter Hoppe wrote:
> I am located in the UK, and I am using Sipura spa-2000 adapters to 
> connect analog phones to a voip network. The network connects to the 
> PSTN as well via the Sipura spa-3000 adapter.
> 
> I would like to provide surge protection for the spa-2000 and the 
> spa-3000 adapters.
> 
> 1.    For spa-2000, fxs port: What is the maximum tip-to-ring voltage 
> before damage to the the adapter occurs?
> 
> 2.    For spa-2000, fxs port: What is the maximum voltage between both 
> legs and ground before damage to the the adapter occurs? (I have looked 
> inside an spa-2000 adapter and saw that the board has a ground plane 
> integrated; the four screw holes seem to connect to that ground plane)
> 
> 3.    For spa-2000, network port: Would I need any surge suppression? 
> What would be a good way forward? I suspect all I need would be some 
> clamping device on the TX/RX pairs that restricts the voltage?
> 
> 4.    For spa-3000, fxo port: Again, maximum tip-to-ring voltage before 
> damage.
> 
> 5.    For spa-3000, fxo port: Maximum voltage between both legs and ground.
> 
> Thank you very much for your consideration!
> 
> 
> Peter Hoppe
> 
> 
> _______________________________________________
> --Bandwidth and Colocation sponsored by Easynews.com --
> 
> 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
> 

-- 

Mark, G7LTT/KC2ENI
Randolph, NJ
http://www.g7ltt.com