Connect broadband to dialup internet server possible ??

I have d?link dp300 internet server (internet sharer) and adsl broadband connection which have zyxel p-600 router. I want to connect my router with internet server is this possible? My d?link dp300 internet server made for dialup connection sharing which have 2 DB9 connectors And zyxel router have rj45 conector it is possible to attach rj45 to DB9 how Please reply guys