Ngakhale kuti pali chitukuko chachangu mu zomangamanga za netiweki, makampani olumikizirana mauthenga akukumana ndi vuto lalikulu la kukula. Chimodzi mwa ukadaulo waukulu mu kulumikizana kwa kuwala - Wavelength Division Multiplexing (WDM) - chakhala njira yofunika kwambiri yothetsera zofooka izi zakuthupi.

Ngati ulusi wowala uyerekezeredwa ndi msewu waukulu, kulumikizana kwachikhalidwe kwa kutalika kwa mafunde amodzi kumakhala ngati galimoto imodzi yomwe ikuyenda mumsewu wonse. Ukadaulo wa WDM umagawa njira yeniyeniyi m'njira zingapo "zosasokoneza" (mafunde osiyanasiyana a kuwala), zomwe zimathandiza kuti zizindikiro zambiri za data zifalitsidwe nthawi imodzi kudzera mu ulusi womwewo. Zida zazikulu zomwe zimathandiza ukadaulo uwu ndi fyuluta ya DWDM (Dense Wavelength Division Multiplexing). Nkhaniyi ikupereka kusanthula mwachidule kwa ukadaulo uwu.

I. Mfundo Zazikulu ndi Ubwino wa Zosefera Zosagwira Ntchito

Passive DWDM, OSP Ring OADM, 1 Channel, 100 GHz Spaceing, Channel 48, 900um 1m Fiber, SC/APC Connector

Mawu akuti "passive" amatanthauza kuti chipangizochi sichifuna magetsi akunja. M'malo mwake, chimadalira kwathunthu zokutira zopyapyala zopyapyala kapena zomangira kuti zilekanitse molondola (demultiplex) kapena kuphatikiza (multiplex) zizindikiro za kuwala za mafunde osiyanasiyana.

Khalidwe lokhalo la kuwala kwa thupi limapereka kukhazikika komanso kudalirika kwapadera, zomwe zimapangitsa chipangizochi kukhala cholimba kwambiri ku kusokonezedwa ndi maginito. Chifukwa chake, ndi choyenera kwambiri kugwiritsidwa ntchito kwa nthawi yayitali m'zipinda zovuta za zida zama telefoni kapena malo akunja ovuta.

Mu mapangidwe a ma network a optical, zosefera za DWDM zopanda ntchito zimagwira ntchito ngati "owongolera magalimoto." Amatsatira mosamalitsa miyezo ya International Telecommunication Union (ITU-T), kugawa zenera lotumizira ma optical lotsika mtengo m'njira zambirimbiri kapena mazanamazana zolumikizirana zodziyimira pawokha zokhala ndi mtunda wopapatiza kwambiri wa mafunde.

Izi zikutanthauza kuti ulusi umodzi wowala, womwe poyamba unkatha kunyamula chizindikiro chimodzi chokha, ukhoza kukulitsa nthawi yomweyo mphamvu yake yotumizira mauthenga kangapo, zomwe zimapangitsa kuti ntchito ya spectral igwire bwino ntchito.

II. Zochitika ndi Mtengo Wamba wa Ntchito

Passive DWDM, OSP Ring OADM, 1 Channel, 100 GHz Stacing, Ch52, Monitor (1%), 900um 1m Fiber, Popanda Cholumikizira

Zosefera izi nthawi zambiri zimapangidwa ndi zinthu zokhazikika zosungiramo zinthu, monga ma module a LGX cassette kapena makadi a rack-mount a mainchesi 19, ndipo zimakhala ndi zolumikizira za fiber optic zolondola kwambiri kuti zigwirizane bwino ndi ma network a single-mode fiber omwe alipo. Magwiritsidwe awo ofunikira ndi awa:

Kukula kwa Network ya Transmission ya Metropolitan ndi Backbone Network

Popanda kuwonjezera zingwe zatsopano za ulusi, ukadaulo wa WDM ukhoza kukulitsa mwachangu kuchuluka kwa maukonde otumizira mauthenga a m'mizinda ndi maukonde am'deralo, kukwaniritsa zosowa zazikulu za ntchito monga kutsatsira makanema apamwamba komanso kugwiritsa ntchito makompyuta.

Malo Ogulitsira akunja (OSP) ndi Maukonde Ofikira

Chifukwa cha makhalidwe awo osachitapo kanthu komanso osakonza, zipangizozi zimagwiritsidwa ntchito kwambiri m'maukonde ogawa magetsi akunja, zomwe zimachepetsa ndalama zogwirira ntchito komanso zosamalira kwa ogwira ntchito pa telefoni kwa nthawi yayitali.

Kulumikizana kwa Deta Center

Mkati mwa malo osungira deta kapena pakati pa malo angapo osungira deta, zosefera zopanda pake zimathandiza kuyendetsa bwino ma siginecha ambiri owoneka bwino komanso kutayika kochepa kwambiri, kuonetsetsa kuti deta itumizidwa mwachangu komanso mokhazikika.