| ROLM 9751 Extension Card Problem Dear Forum Members we have a siemens rolm 9751 cbx running software version 9004 we are installing rolmlink interface cards... digital extension cards (16 lines) in the CBX in place of old ones that are faulty as soon as we insert the card, the tone comes in the extensions..but just after 2-4 minutes a HISS sound starts to appear in all the extensions provided by the cards we noticed one thing...that the existing cards i(that work fine) nstalled in the CBX have the following information written on them: (on the board) AN 1155800 MN 90678 EC 880002 (on a sticker right to the previous print) ASM# 96D4861 MN# 91665 EC# A64344S We ordered 13 cards from ebay and other online dealers...(problematic cards)..they have the following information AN 98D1959 MN 90678 EC A64665V ASM# 98D4538 MN# 90678B EC# A65002U any help would be highly appreciated..thanks |