Supply Of Fxs Card 4 Circuits Per Card Of Puncom Mux Model: V-Mux 100As Per Rdso Spec No Irs-Tc 68-2012 With Amd.1 Or Latest. It Should Be Compatible With Existing Puncom Make Primary Mux Model Vmux 100 Over Nagpur Division Of Secr. Warranty Period: 30 Months After The Date Of Delivery