I’d like to protect my expensive Digium FXO cards from spikes on my three incoming PSTN lines. Does anyone have any recommendations?
Does your telco not fit surge suppressors to the NTE as a matter of standard practice? Perhaps we are spoiled in the UK …..
APC sells a modular solution that has rack mount or wall mount options. ProtectNet is the product line. http://www.apc.com/products/family/index.cfm?id5
I’ll second the APC option. A PRM4 and two PTEL2 will protect 4 lines with a little wiring. Make sure you have a good ground to connect to or the whole thing is worthless.
A J Stiles wrote:
Generally telcos in the US provide protection for THEIR equipment, NOT the subscriber. Of course, dial tone providers via cable provide none other than the RF cable.
Always best to provide additional protection regardless.