PMC规范(IEEE P1386.1 Draft 2.0 04-APR-1995).pdfDraft Standard Physical and EnvironmentalLayers for PCI Mezzanine Cards: PMC Sponsored by the Bus Architecture Standards Committee of the IEEE Computer SocietyP1386.1/Draft 2.0April 4, 1995Sponsor Ballot DraftFRONT PANEIPMC MOUNT ING STANDOFFPMC TO HOST MODULECCNNECTORKEYING PIN