Shabakadaha PON (Passive Optical Network), gaar ahaan gudaha dhibco-ilaa-multipoint PON ODN (Shabakadda Qaybinta indhaha), la socodka degdega ah iyo ogaanshaha cilladaha fiber-ka ayaa keenaya caqabado waaweyn. In kasta oo muraayadaha wakhtiga indhaha (OTDRs) si weyn loo isticmaalo aaladaha, mararka qaarkood waxay la' yihiin dareen ku filan oo lagu ogaanayo hoos u dhaca ishaarada ee fiilooyinka laanta ODN ama dhamaadka fiber ONU. Ku rakibida mawjadaha dhererka qiimaha jaban ee milicsiga fiber-ka ee dhinaca ONU waa dhaqan caam ah oo suurtageliya cabbir-dhamaadka-dhamaadka saxda ah ee isku-xidhka indhaha.
Milicsiga fiber-ku wuxuu ku shaqeeyaa iyadoo la isticmaalayo shabag fibre-arag ah si ay u muujiso garaaca garaaca wadnaha ee OTDR oo leh ku dhawaad 100% milicsi. Dhanka kale, mowjadda caadiga ah ee dhererka hawlgalka ee nidaamka shabakada indhaha ee dadban (PON) ayaa dhex mara muraayadaha iyadoo la dareemayo yaraanta sababtoo ah kuma qanciso xaaladda Bragg ee grating fiber. Shaqada aasaasiga ah ee habkani waa in si sax ah loo xisaabiyo qiimaha luminta soo celinta ee laan kasta oo ONU ah dhacdada milicsiga joojinta iyadoo la ogaanayo joogitaanka iyo xoojinta calaamada tijaabada OTDR ee muuqata. Tani waxay awood u siinaysaa go'aaminta in xidhiidhka indhaha ee u dhexeeya dhinacyada OLT iyo ONU uu si caadi ah u shaqaynayo iyo in kale. Sidaa awgeed, waxay ku guulaysataa la socodka wakhtiga dhabta ah ee dhibcaha khaladka iyo ogaanshaha degdega ah, saxda ah.
Iyada oo si dabacsan loo geynayo muraayadaha si loo aqoonsado qaybaha ODN ee kala duwan, ogaanshaha degdega ah, meelaynta, iyo falanqaynta asalka ah ee khaladaadka ODN waa la gaari karaa, yaraynta wakhtiga xallinta khaladka iyada oo kor loo qaadayo waxtarka tijaabinta iyo tayada dayactirka khadka. Muuqaalka kala qaybinta aasaasiga ah, muraayadaha fiber-ka ee lagu rakibay dhinaca ONU waxay muujinayaan arrimaha marka milicsiga laanta ay muujiso khasaaraha soo laabashada oo si weyn u kordhay marka loo eego salkeeda caafimaadka leh. Haddii dhammaan laamaha fiber-ka ee ku qalabaysan muraayadaha isku mar ay muujiyaan khasaare soo laabasho ah, waxay muujinaysaa cillad ku jirta faybarka jirridda.
Xaaladda kala-qaybiyaha labaad, farqiga u dhexeeya khasaaraha soo noqoshada ayaa sidoo kale la barbar dhigi karaa si sax ah loo tilmaamo haddii cilladaha yaraynta ay ka dhacaan qaybta fiber qaybinta ama qaybta dhibicda fiber-ka. Haddi ay ahaan lahayd xaaladaha kala qaybsanaanta aasaasiga ah ama sare, iyadoo ay ugu wacan tahay hoos u dhaca milicsiga ee ugu sarreeya dhammaadka qalooca tijaabada OTDR, khasaaraha soo laabashada ee xidhiidhka laanta ugu dheer ee shabakadda ODN waxa laga yaabaa in aan si sax ah loo cabbiri karin. Sidaa darteed, isbeddellada ku yimaadda heerka milicsi ee milicsiga waa in la cabbiraa iyada oo saldhig u ah cabbirka khaladka iyo ogaanshaha.
Miliciyeyaasha fiber optic sidoo kale waxaa la geyn karaa meelaha loo baahan yahay. Tusaale ahaan, ku rakibida FBG ka hor Fiber-to-the-Home (FTTH) ama Fiber-to-the-Building (FTTB), ka dibna lagu tijaabiyo OTDR, waxay u oggolaanaysaa isbarbardhigga xogta tijaabada ee xogta aasaasiga ah si loo ogaado cilladaha gudaha/dibadda ama dhismaha gudaha/dhismaha fiber-ka.
Miliciyeyaasha Fiber optic ayaa si ku habboon loogu dhejin karaa si taxane ah dhammaadka isticmaalaha. Cimrigooda dheer, isku halaynta xasilloon, sifooyinka heerkulka ugu yar, iyo qaab dhismeedka isku xirka adabtarada fudud ayaa ka mid ah sababaha ay u yihiin xulashada terminalka indhaha ee ugu habboon ee kormeerka isku xirka shabakadda FTTx. Yiyuantong waxay siisaa FBG fiber optic milicsi oo ah noocyo baakayn oo kala duwan, oo ay ku jiraan gacmo-gacmeedyo caag ah, gacmo-gacmeedyo jir bir ah, iyo foomamka pigtail ee leh xirayaasha SC ama LC.
Waqtiga boostada: Seb-11-2025