Guud ahaan, awoodda iftiinka ee transceiver fiber optic ama module indhaha waa sida soo socota: multimode waa inta u dhaxaysa 10db iyo -18db;hal hab waa 20km inta u dhaxaysa -8db iyo -15db;iyo hal hab waa 60km u dhexeeya -5db iyo -12db inta u dhaxaysa.Laakin haddii awooda iftiinka ee fibre optic transceiver ay u muuqato inta u dhaxaysa -30db iyo -45db, markaa waxay u badan tahay in transceiver fiber optic-gani uu leeyahay dhibaato.
Sidee lagu qiyaasaa in ay dhibaato ka jirto transceiver fiber optic?
(1) Marka hore, arag haddii iftiinka tusaha ee fibre-gareyaha fibre-gaabiyaha ama moduleka indhaha iyo iftiinka tilmaanta ee dekedda lamaanaha ah ee qalloocan ay shidaan.
a.Haddii tilmaame FX ee transceiver uu dansan yahay, fadlan xaqiiji in isku xirka fiber-ku uu yahay mid isku xiran?Mid ka mid ah dhammaadka boodboodka fiber-ka ayaa isku xiran;dhamaadka kale wuxuu ku xiran yahay habka iskutallaabta.
b.Haddii tusiyaha dekedda indhaha (FX) ee transceiver A uu shido oo tusaha dekedda indhaha (FX) ee transceiver-ka B uu maqan yahay, cilladdu waxay ku taal dhinaca A transceiver: hal suurtagal ah waa: A transceiver (TX) gudbinta indhaha dekeddu way xun tahay sababtoo ah dekedda indhaha (RX) ee transceiver B ma helin signalka indhaha;suurtogalnimada kale waa: waxaa jira dhibaato la xiriirta isku xirka fiber-ka ee dekedda gudbinta indhaha ee A transceiver (TX) (fiilada indhaha ama boodboodka indhaha ayaa laga yaabaa in la jabiyo).
c.Tusiyaha lamaanaha qalloocan (TP) waa dansan yahay.Fadlan iska hubi in xidhiidhka lammaane ee qalloocan uu khaldan yahay ama xidhiidhku uu khaldan yahay?Fadlan isticmaal tijaabiyaha sii wadista si aad u tijaabiso (si kastaba ha ahaatee, nalalka tilmaamaya ee la-maroojin ee qaar ka mid ah transceivers waa in ay sugaan ilaa isku xirka fiber-ku xiran yahay).
d.Transceivers Qaar ka mid ah waxay leeyihiin laba dekedood oo RJ45: (ToHUB) waxay muujinaysaa in xariiqda isku xidhka furaha uu yahay xariiq toosan;(ToNode) waxay tuseysaa in xariiqda isku xirta furaha uu yahay xariiqda isdhaafsan.
e.Kordhinta timaha qaarkood waxay leeyihiin furaha MPR ee dhinaca: waxay ka dhigan tahay in xariiqda isku xirka furaha uu yahay xariiq toosan;Beddelka DTE: khadka isku xirka dareemaha waa hab isdhaafsi ah.
(2) Haddii fiilada indhaha iyo boodboodka fiber indhaha la jabiyay
a.Isku xirka fiilada indhaha iyo ogaanshaha goynta: isticmaal tooshka laysarka, iftiinka qoraxda, jirka iftiinka si aad u iftiimiso hal daraf ee isku xirka fiilada indhaha ama isku xidhka;bal eeg haddii uu iftiin muuqda ka jiro dhinaca kale?Haddii uu jiro iftiin muuqda, waxay muujinaysaa in xadhigga indhaha uusan jabin.
b.Ogaanshaha-off-ka ee isku xirka fiber indhaha: isticmaal tooshka laysarka, iftiinka qorraxda, iwm.bal eeg haddii uu iftiin muuqda ka jiro dhinaca kale?Haddii uu jiro iftiin muuqda, boodboodka fiberku ma jabo.
(3) Haddii qaabka kala bar/buuxa ee laba-laabka ah uu khaldan yahay
Transceivers Qaar ka mid ah waxay leeyihiin furayaasha FDX ee dhinaca: laba-duplex buuxa;HDX shido: laba-duplex.
(4) Ku tijaabi mitirka korontada indhaha
Awoodda iftiinka ah ee transceiver fiber optic ama module indhaha ee xaaladaha caadiga ah: multi-mode: inta u dhaxaysa -10db iyo -18db;hal-hab 20 kiiloomitir: inta u dhaxaysa -8db iyo -15db;hal-hab 60 kiiloomitir: inta u dhaxaysa -5db iyo -12db;Haddi awooda iftiinka fibre optic transceiver ay u dhaxeyso -30db-45db, markaas waxaa la xukumi karaa in ay dhibaato ka jirto transceiver fiber optic.