FTTx缩写的意思

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