nim card for webfil mux as per rdso spec no irs tc 68 2012 or with latest amendment com patible with existing webfil pd mux make webfil or similar warranty period 30 months after the date of d elivery nim card for webfil mux as per rdso spec no irs tc 68 2012 or with latest amendment com patible with existing webfil pd mux make webfil or similar warranty period 30 months after the date of d elivery 2 mb tributary card for webfil mux as per rdso spec no irs tc 68 2012