EOC (Ethernet Hla Cable) yog kev siv cuab yeej technology raws li CATV coaxial cable network siv Ethernet raws tu qauv. Lub hauv paus ntsiab lus yog siv cov kev hloov tshwj xeeb rau kev hloov pauv hloov tshuab (feem ntau suav nrog kev hloov pauv tsis txaus, kev hloov pauv / tsis hloov pauv, thiab lwm yam) kom xa cov ntaub ntawv cov cim uas ua raws li 802.3 series ntawm cov qauv los ntawm cov xov kab hauv tsev. Cov thev naus laus zis no tuaj yeem siv tag nrho ntawm cov xov tooj coaxial uas twb muaj lawm ntawm lub cable TV network los daws cov teeb meem ntawm kev nkag mus rau 100m kawg. Raws li qhov sib txawv hloov tshuab, EOC thev naus laus zis tau muab faib ua cov tshuab EOC nquag thiab cov cuab yeej siv tshuab passive EOC.
Cov ncauj lus yooj yim
EOC (Ethernet Hla Cable) yog kev siv cuab yeej technology raws li CATV coaxial cable network siv Ethernet raws tu qauv. Lub hauv paus ntsiab lus yog siv cov kev hloov tshwj xeeb rau kev hloov pauv hloov tshuab (feem ntau suav nrog kev hloov pauv tsis txaus, kev hloov pauv / tsis hloov pauv, thiab lwm yam) kom xa cov ntaub ntawv cov cim uas ua raws li 802.3 series ntawm cov qauv los ntawm cov xov kab hauv tsev. Cov thev naus laus zis no tuaj yeem siv tag nrho ntawm cov xov tooj coaxial uas twb muaj lawm ntawm lub cable TV network los daws cov teeb meem ntawm kev nkag mus rau 100m kawg. Raws li qhov sib txawv hloov tshuab, EOC thev naus laus zis tau muab faib ua cov tshuab EOC nquag thiab cov cuab yeej siv tshuab passive EOC.
cov lus qhia yooj yim
Passive EOC kis thev naus laus zis siv cov yam ntxwv ntawm cable TV teeb liab kis hauv ntau zaus ntawm 111 ~ 860 MHz, baseband cov ntaub ntawv xa xov kis nyob rau hauv ntau zaus ntawm 0 ~ 20MHz, siv ob / plaub hloov dua siab tshiab, siab / qis dhau filtering thiab lwm yam thev naus laus zis los hloov TV teeb liab Lub teeb liab cov ntaub ntawv tau mapped rau lub tsev coaxial cable los ntawm kev sib txuas thiab xa mus rau tus neeg siv' s lub tsev. Ntawm tus neeg siv kawg, lub teeb liab TV tau sib cais los ntawm cov ntaub ntawv teeb liab los ntawm kev sib cais thiab xa mus rau cov chaw xaus. Cov system tuaj yeem muab 10Mbit / s puv-ob txoj bandwidth rau txhua tus neeg siv. Passive EOC nkag mus rau cov cuab yeej muaj cov haujlwm me me rau cov xov tooj cable TV network system pauv hloov tshiab, tsis tas yuav ntxiv cov khoom siv ntxiv, kev teeb tsa yooj yim thiab siv, kev ua haujlwm qis thiab kev saib xyuas tus nqi, thiab yog kev siv nyiaj txiag hauv kev siv tshuab.
Active EOC yog kev siv cuab yeej technology uas siv cov khoom siv nquag nyob ze ntawm tus neeg siv txoj kev hauv tsev kom sib txuas cable xov tooj xaib thiab cov cim digital mus rau lub coaxial cable network rau kis los ntawm QAM / FDQAM tes taws los piav thiab ntau cov cab kuj OFDM. Nws cov thev naus laus zis muaj xws li HiNOC (HighperformanceNetworkOverCoax), BIOC (BroadcastingandInteractivityOverCable), HomePNA (HomePhonelineNetworkAlliance), MOCA (MediaoverCoaxAlliance), thiab lwm yam Txawm hais tias cov thev naus laus zis siv sib txawv yees thiab cov hauv paus ntsiab lus, cov qauv hauv network thiab kev tsim kho yog qhov zoo sib xws. Kom yooj yim piav qhia, lawv muab cais ua qhov nquag EOC nkag mus rau thev naus laus zis. Hom kev thev naus laus zis tuaj yeem ua kom tau raws li qhov tseem ceeb ntawm peb-qhov sib txuas sib txuas kev pabcuam xws li video, suab, thiab cov ntaub ntawv, thiab HiNOC tau qhia ntawm no. HiNOC siv cov txheej txheem coaxial ntawm lub cable TV network kom paub txog qhov kev kub ceev thiab kev ua tau zoo ntau yam los ntawm kev ntxiv cov khoom siv sib thooj xws li HiNOCBridge (HB) thiab HiNOC Modem (HM). HiNOC siv cov xaim hluav taws xob tsis xwm yeem sab saud ntawm 860 MHz los xa cov ntaub ntawv cov cim, siv 16MHz zaus band raws li cov ntaub ntawv xa cov kis, siv cov QAM tes taws los piav txoj kev, thiab tuaj yeem siv cov tshuab thev naus laus zis los ntawm BPSK txog 256QAM. Cov kab ke ua ke ntawm HiNOC cov cuab yeej siv kawg thiab HM nyob rau tib qho channel. HiNOC thev naus laus zis txhawb kev tsim kho tib lub sij hawm txuas nrog cov ywj siab xaib ntau ntawm ntau cov chaw. Lub taub hau kawg khoom tuaj yeem yog HB uas tsuas yog txhawb nqa ib qho channel, lossis HiNOCSwitch (HS) uas txhawb kev koom ua ke ntawm ntau txoj kev.
qhov zoo dua
EOC thev naus laus zis muaj qhov zoo li hauv qab no:
①Qhov txhim kho tau yooj yim, ntsaws thiab ua si, kev xa tawm sai, tsis tas yuav tsum tau sau haujlwm, tsis tas yuav cuam tshuam cov neeg;
② Tam sim no, feem ntau EOC thev naus laus zis tuaj yeem muab ob txoj kab ntawm ntau dua 100M, thiab lub suab los cuam tshuam lub peev xwm muaj peev xwm ntau dua li ntawm CM, thiab tuaj yeem ua haujlwm hauv cov chaw sib txuas lus sib luag;
SizeSmall qhov loj me thiab lub teeb yuag, haum rau kev teeb tsa hauv cov tsev, txoj kev hauv tsev thiab cov zej zog;
ASafe thiab txhim khu kev qha, kev ua haujlwm ruaj khov, kev lag luam thiab siv tswv yim;
TV Cov TV interface tau sib xws nrog txhua lub xov tooj hluav taws xob loj hauv TV, xws li kev txiav tawm, TV, kev sib tw kho qhov muag, thiab lwm yam.;
⑥Data interface yog sib xws nrog txhua Ethernet khoom siv, xws li hloov chaw, routers, IP teeb txheej sab saum toj, PCs, thiab lwm yam.;
SystemEmbedded embedded system, koj tuaj yeem nkag mus hauv http ua ntau yam kev tswj hwm chaw, xws li teeb IP, password, thiab lwm yam.;
Support puv-duplex, ib nrab-duplex hom;
USupport 10 / 100M adaptive;
⑩ Kev Txhawb Nqa IEEE802.310Base-T (Ethernet, 10Mbit / s); txhawb nqa IEEE802.3u100Base-TX (Ceev Ethernet, 100Mbit / s).
