1. Passive EOC
Passive EoC thev naus laus zis yog ua raws cov txheej txheem cuam tshuam nrog IEEE 802.3, uas yog thev naus laus zis sib kis uas xa cov Ethernet cov cim qhia ntawm cov xaim hluav taws xob. Nws qhov tshwj xeeb tshaj plaws yog tias tus neeg siv khoom yog lub cuab yeej passive. Passive EOC thev naus laus zis siv kev faib ntau zaus thev naus laus zis rau Ethernet cov ntaub ntawv teeb liab IPDATA thiab cable TV teeb liab TVRF, kom ob lub cim qhia tau sib koom hauv tib coaxial cable, thiab coaxial cable uas siv HFC network nkag mus rau hauv lub tsev yuav yog IPDATA thiab TVRF cov cim sib xyaw tau xa ncaj qha mus rau tus neeg siv khoom,
Qhov zoo ntawm passive EOC:
1. Cov kab ke txhawb nqa txhua tus neeg siv khoom' tus nqi tshwj xeeb ntawm 10Mbit/s;
2. Ua raws li Ethernet cov txheej txheem thiab muaj qib siab ntawm kev ua qauv;
3. Tus neeg siv khoom yog lub davhlau ya nyob twg tsis zoo, uas txhim kho kev ruaj ntseg ntawm lub kaw lus thiab txo kev ua haujlwm thiab kev saib xyuas tus nqi;
4. Kev teeb tsa kev tsim vaj tsev tsis tas yuav tsum tau teeb tsa Kab 5 Kab rov tav, uas daws tau qhov nyuaj ntawm kev rov teeb tsa cov kab hluav taws xob hauv lub tsev, thiab tus nqi tsim kho tau qis dua.
Qhov tsis zoo ntawm passive EOC:
Hauv qhov txheej txheem thov EOC passive, lub hauv paus chaw haujlwm cov ntaub ntawv teeb liab yuav tsum mus rau txoj kev hauv tsev, thiab CABLE network los ntawm txoj kev hauv tsev mus rau cov neeg siv yuav tsum yog lub hnub qub zoo li, thiab CABLE network los ntawm qhov uas EoC hla tsis tuaj yeem muaj cov chaw faib khoom. Cov xwm txheej no txwv qhov kev thov ntawm passive EoC thiab tsis tuaj yeem siv rau tsob ntoo-hom network feem ntau pom hauv kev tshaj tawm hauv xov tooj cua thiab TV. Vim yog cov teeb liab yooj yim txuas, tus passive EoC muaj peev xwm tiv thaiv kev cuam tshuam tsis zoo thiab muaj qhov cuam tshuam zoo cuam tshuam. Kev ncua ntawm kab CABLE yuav ua rau muaj teeb meem xws li kev tsis muaj peev xwm ntawm lub network tus kheej-voj, thiab kev hloov pauv hauv kev siv tiag yog qhov tsis zoo.
2. Active EOC
Active EOC txhais tau tias cov ntaub ntawv teeb liab tau hloov pauv thiab xa los ntawm coaxial cable. Nws siv kev faib ntau zaus thev naus laus zis los hloov cov ntaub ntawv teeb liab mus rau qee qhov zaus uas tuaj yeem sib kis tau ntawm CATV coaxial network, thiab tom qab ntawd sib xyaw thiab xa CATV lub teeb liab thiab cov ntaub ntawv hloov pauv. Txoj kev nqes hav nqes mus xa CATV thiab cov ntaub ntawv hloov pauv cov cim, thiab cov dej ntws taw qhia Xa cov ntaub ntawv hloov pauv cov cim thiab muab cov xa rov qab rau ob-txoj kev digital TV platform.
Qhov zoo ntawm active EOC:
1. Vim yog txoj kev ntsuas OFDM, muaj peev xwm tiv thaiv kev cuam tshuam zoo;
2. Cov chaw faib khoom tuaj yeem xa tawm ncaj qha;
3. Nws tuaj yeem siv rau lub hnub qub thiab tsob ntoo network ntawm xov tooj cua thiab TV;
4. Cov txheej txheem hloov pauv yog yooj yim thiab nrawm;
5. Piv nrog passive EOC' s" ib tsev neeg txuas rau lub network, tag nrho lub tsev raug kho dua tshiab&";, Tus nqi kho dua yog qis dua.
