DSU缩写的意思

ETE DTP EWT FCN AJG EEROM APARS Bps SOC GPS CPS GIMM NCBA IM CICS DCT UMTS DFSK AP CAI AFC DS CTDM DCN SSM CRC EFCI APADAS RIP DL DVVI GDPS DTD ABDL ppm CPM SSG IOB mcu ASC CSE DFOS FED DVC IS-IS EAF EELS ASI NDS STB CNCC CC S3 QDOS SFB MADP ESC RAID EF DPON