SCS(,524027)SCS,,,,,,,,,SCSSCS,,:,,,,SCS,18142,:11:,21,:,,1E1ROM11//21E2RAM11//21E3NOVRAM11//21:(8142),,,,,PCB12VDC,,,),,,AC/DC,404,,AC/DCDO30,,,,DO30-IDO30-DO30-,,952002No3©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.,11,,,-:,,:19978,,,,-,,,,,,21,:,,4:11,,:,:2t,,:,,,,,213mm5mm,,3mm3mm,,;3mm,,:(1),,(2),31,,,:,,,,41:(1),(+EX)(-EX),400/(+Si)(-Si),2500/,(:,,)(2),(1),(1),,,(3),,,,,,;,,,062002No3©1994-2006ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.