DOCSIS OVER PON (D-PON)
Tlhahiso ea Docsis over PON (D-PON) e fana ka tharollo bakeng sa CATV MSO ho fana ka litšebeletso tsa HDTV + Ethernet ho batho ba ka bang 3000 FTTH ba ngolisitseng sechabeng sa sebaka se ka tlase ho 10Km fiber ho ea ofising ea hlooho. Motho e mong le e mong ea ngolisitseng o tla ba le litaba tsa HDTV tsa 60ch+ QAM le bokhoni ba Broadband ba 50Mbps. RFoG micronode, CMTS le CWDM ke lisebelisoa tse ka sehloohong tlhahisong ena.
SCTE e phatlalalitse RF holim'a Glass (RFoG) standard SCTE-174-2010 lilemong tse 'maloa tse fetileng, e hlalosa mokhoa oa ho khutla oa ho phatloha o lumellang modem e le' ngoe feela ea cable ho romela data e fapaneng ka thapo ea fiber ho CMTS ha li-modem tsohle tsa cable li setiloe mokhoeng oa TDMA. Ka RFoG, Cable MSO e ka holisa tšebeletso ea Modem ea CMTS/Cable ho tloha marang-rang a HFC ho ea ho Fiber ho ea ho netweke ea lapeng (FTTH). Sena ke se bitsoang DOCSIS over Passive Optical Network (D-PON). D-PON e ts'ehetsa 1x32 optical splitter sebakeng sa 20Km fiber kapa 1x64 optical splitter sebakeng sa 10Km fiber.
Hape re hlahisitse Docsis 3.0 mini-CMTS ho latela maemo a C-DOCSIS. GmCMTS30 e na le likanale tse theosang tse 16 le likanale tse 4 tse nyolohang, tse tšehetsang docsis 2.0 le modem tsa cable tsa docsis 3.0. Ho 256QAM, liteishene tse 16 tsa DS li kanna tsa arolelana bandwidth ea 800Mbps, ho bolelang ho ba ngolisitseng li-cable modem tse 256, lebelo le hloekileng la Ethernet le ka ba 50Mbps.
Ka motsoako o phethahetseng oa CMTS le D-PON, Cable MSO e ka fana ka litšebeletso tsa marang-rang tsa HDTV le High Speed ka theko e tlase. Ha fiber e ea lapeng, litokiso tsohle tsa sistimi le ntlafatso li ba bonolo haholo.
Sistimi ea Docsis 3.1 kapa Docsis 4.0 e kopang khokahano e eketsehileng ea litsela tsa ho khutla sebakeng se tlase sa CATV bandwidth, optical beat interference (OBI) ke ntho e thata ho feta tsamaisong ea PON. Ka laser e hahiloeng e sa pholileng ea CWDM e khutlelang fensetereng e khethiloeng ea optical, GFH2009 RFoG Micronode e hlokomela tlhokahalo ea mahala ea OBI ka tekanyetso ea moruo, e nang le melemo ea ho phatlalatsa makholo a HD TV le ho arolelana lintlha tsa 10Gbps Ethernet.
Sheba setšoantšo sa marang-rang sa tlhahiso ea D-PON le setšoantšo sa khokahanyo ea thepa ea hlooho ea D-PON.
