Kuyerekeza kwa magawo asanu a PON-based FTTX

Njira yamakono yopezera ma bandwidth apamwamba kwambiri imachokera ku PON-based FTTX access.Mfundo zazikuluzikulu ndi malingaliro omwe akukhudzidwa pakuwunika mtengo ndi izi:

● Mtengo wa zida za gawo lofikira (kuphatikiza zida ndi mizere yosiyanasiyana, ndi zina, zowerengera kwa aliyense wogwiritsa ntchito mzere)

●Ndalama zomangira uinjiniya (kuphatikiza zolipirira zomanga ndi zina, nthawi zambiri 30% ya mtengo wonse wa zida)

● Ndalama zoyendetsera ntchito ndi kukonza (nthawi zambiri pafupifupi 8% ya ndalama zonse pachaka)

● Mlingo wa kukhazikitsa sikuganiziridwa (ndiko kuti, kuchuluka kwa kukhazikitsa ndi 100%).

● Mtengo wa zida zofunikira umawerengedwa potengera zitsanzo za ogwiritsa ntchito 500

Zindikirani 1: Kufikira kwa FTTX sikuganizira mtengo wa chipinda cha makompyuta ammudzi;

Chidziwitso 2: ADSL2+ ilibe mwayi poyerekeza ndi ADSL pomwe mtunda wofikira ndi 3km.VDSL2 pakadali pano sikugwiritsidwa ntchito kwambiri, kotero palibe kufananitsa komwe kudzachitike panthawiyi;

Zindikirani 3: Kufikira kwa fiber optic kuli ndi zabwino zoonekeratu patali.

FTTB + LAN

Ofesi yapakati imayendetsedwa kudzera mu fiber optical (3km) kupita ku chosinthira chophatikizira cha malo okhala kapena nyumbayo, kenako ndikulumikizidwa ndi kolido yosinthira kudzera mu fiber optical (0.95km), kenako imayendetsedwa mpaka kwa ogwiritsa ntchito pogwiritsa ntchito chingwe cha Gulu 5 (0.05) km).Kuwerengedwa molingana ndi chitsanzo cha 500 (popanda kuganizira mtengo wa chipinda cha selo), osachepera 24-port aggregation switch ndi 21 24-port corridor switches amafunika.Pakugwiritsa ntchito kwenikweni, mulingo wowonjezera wosinthira nthawi zambiri umawonjezeredwa.Ngakhale kuchuluka kwa masinthidwe kumachulukirachulukira, kugwiritsa ntchito mitundu yotsika mtengo yosinthira makonde kumachepetsa mtengo wonse.

FTTH

Ganizirani kuyika OLT ku ofesi yapakati, chingwe chimodzi cha kuwala (4km) kupita kuchipinda chapakati cha makompyuta, muchipinda chapakati pakompyuta cha cell kudzera pa 1:4 optical splitter (0.8km) kupita ku corridor, ndi 1:8 optical splitter (0.2km) munjira yolowera ogwiritsa ntchito.Kuwerengedwa molingana ndi 500-user model (popanda kuganizira mtengo wa chipinda cha cell): Mtengo wa zida za OLT umaperekedwa pamlingo wa ogwiritsa ntchito 500, zomwe zimafuna madoko a 16 OLT.

FTTC+EPON+LAN

Ganiziraninso zoyika OLT ku ofesi yapakati.Chingwe chimodzi chowoneka bwino (4km) chidzatumizidwa kuchipinda chapakati pamakompyuta ammudzi.Chipinda chapakati cha makompyuta cha anthu ammudzi chidzadutsa 1:4 optical splitter (0.8km) kupita ku nyumbayo.Pakhonde lililonse, 1:8 Optical splitter (0.2km) idzagwiritsidwa ntchito.) Pitani ku chipinda chilichonse, ndiyeno mulumikizane ndi malo ogwiritsira ntchito ndi mizere ya Gawo 5.ONU iliyonse ili ndi ntchito yosinthira Layer 2.Poganizira kuti ONU ili ndi madoko a 16 FE, ndiko kuti, ONU iliyonse imatha kupeza ogwiritsa ntchito 16, omwe amawerengedwa molingana ndi mtundu wa ogwiritsa ntchito 500.

FTTC+EPON+ADSL/ADSL2+

Pakugwiritsanso ntchito komweko kwa DSLAM kutsika, lingalirani zoyika OLT ku ofesi yapakati, ndi chingwe chimodzi (5km) kuchokera ku ofesi yomaliza ya BAS kupita ku ofesi yomaliza, ndipo kumapeto kwa ofesi, kumadutsa 1:8 optical. splitter (4km) kupita ku ONU muchipinda chapakati pakompyuta.ONU imalumikizidwa mwachindunji ndi DSLAM kudzera mu mawonekedwe a FE, kenako imalumikizidwa ndi kumapeto kwa wogwiritsa ndi chingwe chopotoka (1km) yamkuwa.Imawerengedwanso kutengera mtundu wa ogwiritsa ntchito 500 wolumikizidwa ku DSLAM iliyonse (popanda kuganizira mtengo wachipinda cha cell).

Point-to-point Optical Ethernet

Ofesi yapakati imayikidwa kudzera mu fiber optical (4km) kupita kugulu losinthira anthu ammudzi kapena nyumba, kenako ndikutumizidwa kumapeto kwa wogwiritsa ntchito kudzera mu fiber optical (1km).Kuwerengeredwa molingana ndi 500 wosuta chitsanzo (popanda kuganizira mtengo wa chipinda cell), osachepera 21 24-doko aggregation masiwichi chofunika, ndi 21 awiriawiri 4 makilomita a msana kuwala ulusi amaikidwa kuchokera pakati ofesi chipinda kompyuta kuti aggregation. kusintha mu cell.Popeza point-to-point optical Ethernet siigwiritsidwa ntchito nthawi zambiri polowera m'malo okhala anthu, nthawi zambiri imagwiritsidwa ntchito polumikizana ndi ogwiritsa ntchito amwazikana.Choncho, dipatimenti yake yomanga ndi yosiyana ndi njira zina zopezera, kotero njira zowerengera ndizosiyana.

Kuchokera kusanthula pamwambapa, zitha kuwoneka kuti kuyika kwa optical splitter kudzakhudza mwachindunji kugwiritsa ntchito ulusi, zomwe zimakhudzanso mtengo womanga maukonde;mtengo wamakono wa zida za EPON makamaka umachepetsedwa ndi gawo lophulika la optical transmit/receive ndi core control module/ Chips ndi E-PON module mitengo imatsitsidwa nthawi zonse kuti ikwaniritse zosowa zamsika;poyerekeza ndi xDSL, mtengo wolowetsa kamodzi wa PON ndi wapamwamba, ndipo pakali pano umagwiritsidwa ntchito makamaka m'malo ogwiritsidwa ntchito kumene kapena omangidwanso.Point-to-point Optical Ethernet ndi yoyenera kwa makasitomala amwazikana aboma ndi mabizinesi chifukwa cha kukwera mtengo kwake.Kugwiritsa ntchito FTTC+E-PON+LAN kapena FTTC+EPON+DSL ndi njira yabwinoko yosinthira pang'onopang'ono kupita ku FTTH.