Iingxaki ezijongene nokufakwa kunye nokusetyenziswa kwe-fiber optic transceivers
Inyathelo loku-1: Okokuqala, ngaba ubona ukuba isalathisi se-fiber transceiver okanye imodyuli ye-optical kunye ne-twisted pair port indicator ivuliwe?
1.Ukuba i-port optical port (FX) isalathisi se-A transceiver ivuliwe kunye ne-optical port (FX) isalathisi se-B transceiver ayikhanyi, iphutha lisecaleni le-A transceiver: enye inokwenzeka: I-transceiver (TX) ukuhanjiswa kwe-optical I-port yaphukile ngenxa yokuba i-port optical (RX) ye-transceiver ye-B ayifumani isignali ye-optical.Enye inokwenzeka kukuba kukho ingxaki kule khonkco yefiber ye-A transceiver (TX) i-port optical port, njengokukhanya. ijumper yaphukile.
2.Ukuba isibonakaliso se-optical port (FX) se-transceiver asikhanyisi, qaphela ukuba ikhonkco yefiber i-cross-linked.I-fiber jumper idibaniswe ngokuhambelana kwaye enye i-cross-connect.
3.I-twisted pair (TP) isalathisi asikhanyisi.Nceda uqinisekise ukuba i-twisted pair cable inempazamo okanye iqhagamshelwe ngendlela engeyiyo.Nceda usebenzise umvavanyi wokuqhubekeka ukujonga.
I-4.Ezinye ii-transceivers zineechwephesha ezimbini ze-RJ45: (i-ToHUB) ibonisa ukuba umgca wokudibanisa odibanisa ukutshintshwa ngumgca ochanekileyo.(ToNode) ibonisa ukuba umgca woqhagamshelo odibanisa iiswitshi ngumgca onqamlezayo.
I-5.Abanye abathumeli banomtshini we-MPR kwicala: umgca wokudibanisa odibanisa iitshintshi yindlela echanekileyo yomgca.Ukutshintsha kwe-DTE: umgca wokudibanisa odibanisa ukutshintshwa yimodi yomgca.
Inyathelo lesi-2: Hlalutya ukuba ngaba kukho ingxaki kwi-fiber jumper kunye nentambo?
1.Uqhagamshelwano lwefiber optical on-off ukubona: sebenzisa isibane selaser, ukukhanya kwelanga, njalo njalo ukukhanyisa i-fiber jumper.Bona ukuba kukho ukukhanya okubonakalayo kwelinye icala?Ukuba kukho ukukhanya okubonakalayo, i-fiber jumper ayiphulwanga.
2.Ukubona ikhefu lekhebula: sebenzisa i-laser flashlight, ukukhanya kwelanga, isikhanyisi ukukhanyisa intambo yokudibanisa okanye i-coupler.Bona ukuba kukho ukukhanya okubonakalayo kwelinye icala?Ukuba kukho ukukhanya okubonakalayo, ikhebula aliphukanga.
Inyathelo lesi-3: Ingaba isiqingatha/indlela epheleleyo ye-duplex ayilunganga?
Ezinye ii-transceivers zineenguqu ze-FDX kwicala: i-duplex epheleleyo;Ukutshintsha kwe-HDX: isiqingatha se-duplex.
Inyathelo lesi-4: Ukusebenzisa isixhobo sokubona isixhobo semitha yamandla okukhanya
Amandla akhanyayo we-transceiver optical okanye imodyuli ye-optical phantsi kweemeko eziqhelekileyo: i-multimode: -10db-18db;imowudi enye 20km: -8db–15db;imowudi eyodwa 60km: -5db-12db Ukuba amandla akhanyayo e-transceiver optical phakathi -30db-45db, ngoko kunokugwetywa ukuba kukho ingxaki kule transceiver.
Ii-transceivers zamehlo kufuneka zinike ingqwalasela kwimiba
Ngenxa yokulula, kungcono ukuba nombuzo kunye nesitayela sokuphendula, esinokufumaneka ngokujonga nje.
1.Ingaba i-optical transceiver ngokwayo iyayixhasa i-full-duplex kunye ne-half-duplex?
Ezinye iitshiphusi emarikeni zinokusebenzisa kuphela indawo ephindwe kabini ngoku, kwaye azikwazi kuxhasa isiqingatha se-duplex.Ukuba uqhagamshela kwezinye ii-brand of switches (SWITCH) okanye i-hub (HUB), kwaye isebenzisa imowudi ye-half-duplex, ngokuqinisekileyo iya kubangela iingxabano ezinzulu kunye nokulahlekelwa kwepakethi.
2.Ngaba ivavanyelwe ukuqhagamshelwa kwezinye ii-transceivers zefiber optic?
Okwangoku, kukho ngakumbi nangakumbi ii-transceivers ezibonakalayo kwimarike.Umzekelo, ukuba ukuhambelana kweempawu ezahlukeneyo ze-transceivers akuzange kuhlolwe ngaphambili, kuya kubangela ukulahleka kwepakethi, ixesha elide lokuhambisa, kunye nokukhawuleza nokucotha.
3.Ingaba kukho isixhobo sokhuseleko sokuthintela ukulahleka kwepakethi?
Abanye abavelisi basebenzisa imodi yokudlulisa idatha yerejista ukwenzela ukunciphisa iindleko xa kuveliswa i-fiber optic transceivers.Into engalunganga kakhulu yale ndlela kukuba ukuhanjiswa akuzinzile kunye nokulahleka kwepakethi, kwaye eyona nto ibhetele kukusebenzisa uyilo lomgca we-buffer, onokuphepha ngokukhuselekileyo idatha. ilahleko yepakethe.
4.Ukuguquguquka kobushushu?
Xa i-fiber optic transceiver ngokwayo isetyenziswa, iya kuvelisa ukushisa okuphezulu.Xa iqondo lobushushu liphezulu kakhulu (akukho ngaphezu kwe-50 ° C), nokuba i-fiber optic transceiver isebenza ngokuqhelekileyo yinto ekufanele iqwalaselwe ngabathengi!
5.Ingaba kukho umgangatho we-IEEE802.3u?
Ukuba i-transceiver ebonakalayo idibana nomgangatho we-IEEE802.3, oko kukuthi, ixesha lokulibaziseka lilawulwa kwii-bits ze-46.Ukuba ingaphezulu kweebhithi ezingama-46, umgama othunyelelwa yi-optical transceiver uya kufinyezwa.
Inkonzo ye-6.Emva kokuthengisa:
Ukuze wenze inkonzo emva kokuthengisa iphendule ngokukhawuleza kwaye kwangoko, kucetyiswa ukuba abathengi bathenge i-fiber-optic transceivers ngokwamandla omenzi, iteknoloji, udumo kunye nezinye iinkampani.