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 zosiyanasiyana zolumikizirana ndi mizere, ndi zina zotero, zowerengera 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 kumagulukusinthaza malo okhalamo kapena nyumba, ndiyeno kulumikizidwa ku khondekusinthaKupyolera mu kuwala kwa fiber (0.95km), kenako kutumizidwa kumapeto kwa wogwiritsa ntchito pogwiritsa ntchito chingwe cha Gulu 5 (0.05km). Kuwerengedwa molingana ndi mtundu wa ogwiritsa ntchito 500 (popanda kuganizira mtengo wa chipinda cha cell), osachepera gulu limodzi la 24-port aggregation.kusinthandi 21 24-port corridormasiwichizofunika. Mu ntchito yeniyeni, mlingo wowonjezera wakusinthanthawi zambiri amawonjezeredwa. Ngakhale chiwerengero chonse chamasiwichikuwonjezeka, kugwiritsa ntchito mitundu yotsika mtengo ya corridormasiwichiamachepetsa mtengo wonse.

FTTH

Lingalirani kuyikaOLTpa ofesi yapakati, limodzi kuwala CHIKWANGWANI (4km) kwa selo chapakati kompyuta chipinda, mu selo chapakati kompyuta chipinda kudzera 1:4 kuwala splitter (0.8km) kwa korido, ndi 1:8 kuwala ziboda (0.2km) ) mu terminal user terminal. Kuwerengedwa molingana ndi 500-user model (popanda kuganizira mtengo wa chipinda cha cell): Mtengo waOLTZida zimaperekedwa pamlingo wa ogwiritsa ntchito 500, zomwe zimafunikira 16OLTmadoko.

FTTC+EPON+LAN

Lingaliraninso kuyikaOLTku ofesi yapakati. Chingwe chimodzi chowoneka bwino (4km) chidzatumizidwa kuchipinda chapakati pamakompyuta ammudzi. Chipinda chapakati pamakompyuta cha anthu ammudzi chidzadutsa pagawo la 1:4 Optical splitter (0.8km) kupita ku nyumbayo. Pakhonde lililonse, 1:8 Optical splitter (0.2km) idzagwiritsidwa ntchito. ) Pitani ku chipinda chilichonse, ndiyeno gwirizanitsani ndi malo ogwiritsira ntchito ndi mizere ya Gawo 5. AliyenseONUili ndi ntchito yosinthira Layer 2. Poganizira kutiONUili ndi madoko a 16 FE, ndiye kuti, iliyonseONUamatha kupeza ogwiritsa ntchito 16, omwe amawerengedwa molingana ndi mtundu wa ogwiritsa ntchito 500.

FTTC+EPON+ADSL/ADSL2+

Pakugwiritsa ntchito komweko kwa DSLAM yopita pansi, ganizirani kuyika aOLTku ofesi yapakati, ndi chingwe chimodzi (5km) kuchokera ku ofesi yomaliza ya BAS kupita ku ofesi yomaliza, ndipo kumapeto kwa ofesi, imadutsa 1: 8 optical splitter (4km) mpakaONUm'chipinda chapakompyuta cha cell center. TheONUimalumikizidwa mwachindunji ndi DSLAM kudzera mu mawonekedwe a FE, kenako imalumikizidwa ndi wogwiritsa ntchito 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 kugulukusinthaammudzi kapena nyumba, kenako amatumizidwa mwachindunji kwa wogwiritsa ntchito kudzera mu fiber fiber (1km). Kuwerengedwa molingana ndi mtundu wa ogwiritsa ntchito 500 (popanda kuganizira mtengo wa chipinda cha cell), osachepera 21 24-port aggregationmasiwichiakufunika, ndipo ma 21 ma 21 a 4 kilometers a backbone optical fibers amaikidwa kuchokera kuchipinda chapakati cha makompyuta kupita kugulu.masiwichimu 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.