HDB缩写的意思

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