Kuenzanisa kweshanu PON-yakavakirwa FTTX kuwana

Iyo yazvino yakakwirira-bandwidth yekuwana networking nzira inonyanya kuenderana nePON-yakavakirwa FTTX kuwana.Iwo makuru maficha uye fungidziro inosanganisirwa mumutengo wekuongorora ndeaya anotevera:

● Mutengo wezvishandiso zvechikamu chekuwana (kusanganisira dzakasiyana siyana dzekuwana michina uye mitsara, nezvimwewo, yakaverengerwa kune yega yega mushandisi)

● Mari yekuvaka yehuinjiniya (inosanganisira mari yekuvaka nemimwe mari yekuwedzera, kazhinji 30% yemutengo wemidziyo yese)

● Kushanda uye kugadzirisa mari (kazhinji inenge 8% yemari yose pagore)

● Muyero wekuisa hautariswe (ndiko kuti, chiyero chekuisa i100%).

● Mari yemidziyo inodiwa inoverengerwa zvichienderana ne500 mushandisi mhando

Cherechedza 1: FTTX kuwana haifungi mutengo wekamuri yekombuta yenharaunda;

Cherechedzo 2: ADSL2+ haina pundutso kana ichienzaniswa neADSL kana chinhambwe chekusvika chiri 3km.VDSL2 parizvino haisati yashandiswa zvakanyanya, saka hapana kuenzanisa kuchaitwa panguva iripo;

Cherechedzo 3: Optical fiber yekuwana ine mabhenefiti ari pachena pamadaro marefu.

FTTB+LAN

Hofisi yepakati inofambiswa kuburikidza neoptical fiber (3km) kune aggregation switch yenzvimbo yekugara kana chivakwa, yobva yabatana nemukoridho chinja kuburikidza neoptical fiber (0.95km), yozoendeswa kumagumo emushandisi uchishandisa Chikamu 5 tambo (0.05) km).Yakaverengerwa zvinoenderana ne500 mushandisi modhi (pasina kutarisisa mutengo wekamuri yesero), ingangoita imwe 24-port aggregation switch uye 21 24-port corridor switch inodiwa.Mukushandiswa chaiko, imwe nhanho yekuchinja inowanzowedzerwa.Kunyangwe huwandu hwese hwekuchinja huchiwedzera, kushandiswa kwemhando dzepasi-yemitengo yemakoridhi switch inoderedza mutengo wakazara.

FTTH

Funga kuisa OLT pahofisi yepakati, imwe optical fiber (4km) kune cell central komputa mukamuri, musero repakati komputa mukamuri kuburikidza ne1: 4 optical splitter (0.8km) kumukoridho, uye 1:8 optical. splitter (0.2km) mukoridho yemushandisi terminal.Yakaverengerwa zvinoenderana ne500-mushandisi modhi (pasina kutariswa mutengo wekamuri yesero): Mutengo wemidziyo yeOLT wakagoverwa pachiyero chevashandisi mazana mashanu, zvinoda huwandu hwe16 OLT ports.

FTTC+EPON+LAN

Fungawo nezvekuisa OLT pahofisi yepakati.Imwe optical fiber (4km) inotumirwa kukamuri yepakati komputa yenharaunda.Iyo yepakati komputa kamuri yenharaunda ichapfuura nepakati pe1: 4 Optical splitter (0.8km) kuenda kuchivakwa.Mukoridho yega yega, 1: 8 optical splitter (0.2km) ichashandiswa.) Enda kune imwe neimwe pasi, uye wozobatanidza kune mushandisi terminal neChikamu 5 mitsetse.Imwe neimwe ONU ine Layer 2 switching function.Tichifunga kuti ONU ine 16 FE ports, ndiko kuti, ONU yega yega inogona kuwana vashandisi gumi nevatanhatu, iyo inoverengerwa maererano ne500 mushandisi modhi.

FTTC+EPON+ADSL/ADSL2+

Pakushandiswa kwakafanana kweDSLAM kudzika kwekuchinja, funga kuisa OLT pahofisi yepakati, uye fiber imwe chete (5km) kubva kuBAS end office kuenda ku general end office, uye pa general end office, inopfuura ne 1:8 optical. splitter (4km) kuenda kuONU mukamuri repakati komputa.Iyo ONU yakabatana zvakananga neDSLAM kuburikidza neFE interface, uyezve yakabatana kune yekupedzisira mushandisi neyakamonyoroka pair (1km) tambo yemhangura.Inoverengerwawo zvichienderana ne500 mushandisi modhi yakabatana kune yega yega DSLAM (pasina kufunga mutengo wekamuri yesero).

Point-to-point optical Ethernet

Hofisi yepakati inoiswa kuburikidza neoptical fiber (4km) kune aggregation switch yenharaunda kana chivakwa, uye yobva yaiswa zvakananga kumushandisi kumagumo kuburikidza neoptical fiber (1km).Yakaverengerwa zvinoenderana ne500 mushandisi modhi (pasina kutarisisa mutengo wekamuri yesero), ingangoita 21 24-port aggregation switch inodiwa, uye 21 pairs e4 makiromita ebackbone optical fibers akaiswa kubva pakati pehofisi komputa mukamuri kuenda kuunganidzwa. maswichi muchitokisi.Sezvo point-to-point optical Ethernet isingawanzo kushandiswa kuwana Broadband munzvimbo dzekugara, inowanzo shandiswa chete kune network yevashandisi vakakosha vakapararira.Naizvozvo, dhipatimendi rayo rekuvaka rakasiyana nedzimwe nzira dzekuwana, saka nzira dzekuverenga dzakasiyana zvakare.

Kubva pakuongorora kwepamusoro, zvinogona kuonekwa kuti kuiswa kwe-optical splitter kuchava nemigumisiro yakananga pakushandiswa kwefiber, iyo inokanganisawo mari yekuvaka network;mutengo wazvino weEPON wemidziyo unonyanya kudzikiswa neiyo burst optical transmit/receive module uye iyo core control module/ Chips uye E-PON module mitengo inogara ichidzikiswa kuti isangane nemusika zvinodiwa;kana ichienzaniswa nexDSL, mutengo wePON wenguva imwe chete wakakwirisa, uye parizvino uri kunyanya kushandiswa munzvimbo dzichangovakwa kana kuvakwa patsva.Point-to-point optical Ethernet inokodzera chete hurumende yakapararira uye vatengi vemabhizinesi nekuda kwekudhura kwayo.Kushandisa FTTC+E-PON+LAN kana FTTC+EPON+DSL ndiyo mhinduro iri nani yekuchinja zvishoma nezvishoma kuenda kuFTTH.