Ngokubanzi, amandla akhanyayo e-transceiver ye-fiber optical okanye imodyuli ye-optical yile ilandelayo: i-multimode iphakathi kwe-10db kunye ne-18db;imowudi enye yi-20km phakathi kwe -8db kunye ne -15db;kunye nemowudi enye yi-60km iphakathi kwe-5db kunye ne-12db phakathi.Kodwa ukuba amandla akhanyayo e-fiber optic transceiver avela phakathi kwe--30db kunye ne-45db, ngoko kunokwenzeka ukuba le fiber optic transceiver inengxaki.
Ungagweba njani ukuba kukho ingxaki nge-fiber optic transceiver?
(1) Okokuqala, jonga ukuba ukukhanya kwe-fiber optical transceiver okanye imodyuli ye-optical kunye nesalathiso sokukhanya kwesibini esijijekileyo sivuliwe.
a.Ukuba isalathisi se-FX se-transceiver sivaliwe, nceda uqinisekise ukuba ikhonkco yefiber i-cross-link?Esinye isiphelo se-fiber jumper sidibaniswe ngokufanayo;esinye isiphelo sidityaniswe kwimowudi yomnqamlezo.
b.Ukuba i-port optical port (FX) isalathisi se-A transceiver ivuliwe kwaye i-optical port (FX) isalathisi se-B transceiver icinyiwe, impazamo ikwicala le-A transceiver: enye into enokwenzeka kukuba: I-transceiver (TX) yothumelo lwamehlo i-port imbi kuba i-optical port (RX) ye-B transceiver ayifumani uphawu lokukhanya;enye into enokwenzeka kukuba: kukho ingxaki ngolu nxulumaniso lwefiber ye-optical transmission port ye-A transceiver (TX) (intambo yokukhanya okanye i-jumper optical inokwaphulwa).
c.Isalathisi esijijekileyo (TP) sicimile.Nceda uqinisekise ukuba udibaniso lwesibini olujijekileyo alulunganga okanye umdibaniso awulunganga?Nceda usebenzise i-continuity tester ukuvavanya (nangona kunjalo, izibane zesalathisi ezijijekileyo zezinye ii-transceivers kufuneka zilinde de ikhonkco yefiber idibaniswe).
d.Ezinye ii-transceivers zineechweba ezimbini ze-RJ45: (i-ToHUB) ibonisa ukuba umgca wokudibanisa kwi-switch umgca ochanekileyo;(ToNode) ibonisa ukuba umgca wokudibanisa kwi-switch ngumgca we-crossover.
e.Ezinye izandiso zeenwele zine-MPR yokutshintsha kwicala: kuthetha ukuba umgca wokudibanisa kwi-switch umgca ochanekileyo;Ukutshintsha kwe-DTE: umgca woqhagamshelo kwisitshintshi yimowudi yokuwela ngaphezulu.
(2) Ingaba intambo yokukhanya kunye ne-optical fiber jumper yophukile
a.Ukuqhagamshelwa kwentambo ye-Optical kunye nokufumanisa ukuqhawula: sebenzisa isibane se-laser, ukukhanya kwelanga, umzimba okhanyayo ukukhanyisa isiphelo esinye se-optical cable connector okanye ukudibanisa;ubone ukuba kukho ukukhanya okubonakalayo kwelinye icala?Ukuba kukho ukukhanya okubonakalayo, kubonisa ukuba ikhebula le-optical aliphulwanga.
b.Ukubona ukucinywa koxhumo lwefiber optical: sebenzisa isibane selaser, ukukhanya kwelanga, njl.ubone ukuba kukho ukukhanya okubonakalayo kwelinye icala?Ukuba kukho ukukhanya okubonakalayo, i-fiber jumper ayiphulwanga.
(3) Nokuba imowudi yesiqingatha/egcweleyo ayilunganga
Ezinye ii-transceivers zineenguqu ze-FDX kwicala: i-duplex epheleleyo;Ukutshintsha kwe-HDX: isiqingatha se-duplex.
(4) Uvavanyo ngemitha yamandla okukhanya
Amandla akhanyayo we-fiber optical transceiver okanye imodyuli ye-optical phantsi kweemeko eziqhelekileyo: i-multi-mode: phakathi kwe-10db kunye ne-18db;imowudi enye iikhilomitha ezingama-20: phakathi -8db kunye -15db;imowudi enye yeekhilomitha ezingama-60: phakathi kwe-5db kunye ne-12db;Ukuba umbane okhanyayo we-fiber optic transceiver uphakathi kwe-30db-45db, ngoko kunokugwetywa ukuba kukho ingxaki kule fiber optic transceiver.