Chat optik la (ke yo rele touONUaparèy) operatè lakay enstale nou an bay aksè nan rezo operatè a atravè PON (rezo optik pasif), konekte splitter optik la, epi konekte pò PON operatè a.OLTaparèy. Done pwotokòl la konplètman diferan de LAN tradisyonèl la. Optical Cat konvèti done PON nan done Ethernet, ki jwe wòl konvèsyon pwotokòl, sètadi pòtay.
Limyè kalite chat: ka divize an EPONONU, GPONONU, XPONONUdapre estanda a
1. EPONONU: EPON (Ethernet Passive Optical Network), ki baze sou estanda pwotokòl IEEE 802.3ah, bay uplink ak downlink to simetrik 1.25Gbps.
2. GPONONU: GPON (Gigabit-Capable PON), ki baze sou ITU-T G.984. x pwotokòl estanda, bay uplink ak downlink pousantaj asimetri nan 1.244Gbps pou uplink ak 2.488Gbps pou downlink.
3. XPONONU: doub-mòdONU, sipòte IEEE 802.3ah/ITU-T G.984. x pwotokòl estanda.
HDV OEM optik chat kalite: kalite doneONU, kalite vwaONU, Kalite CATVONU, twa-rezo entegrasyon kaliteONU
1. Kalite doneONU: 1GE, 1GE+1FE+WIFI, 1GE+3FE+WIFI, 2GE+AC-WFI, 4GE+AC-WFI
2. Kalite fonetikONU：1GE+1FE+WIFI+1POTS、1GE+3FE+WIFI+1POTS、4GE+AC-WIFI +1POTS
3. Kalite CATVONU：1GE+1FE+WIFI+CATV、1GE+3FE+WIFI+CATV、1GE+1FE+CATV、2GE+AC-WIFI+CATV 、4GE+AC-WIFI+CATV
4. Twa-rezo entegrasyon kaliteONU：1GE+1FE+WIFI+1POTS+CATV、1GE+3FE+WIFI+1POTS+CATV、4GE+AC-WIFI +1POTS+CATV
