I-Fiber optic transceiver yiyunithi yokuguqula imidiya yokudlulisa i-Ethernet etshintshiselana ngemiqondiso yombane ejijekileyo yomgama omfutshane kunye nemiqondiso yokukhanya yomgama omde. Ikwabizwa ngokuba yi-photoelectric converter (i-Fiber Converter) kwiindawo ezininzi.
1. Isibane seLink asikhanyi
(1) Jonga ukuba umgca wefayibha ye-optical uvulekile na;
(2) Jonga ukuba ukulahleka komgca wefayibha ye-optical kukhulu kakhulu na, okungaphezulu koluhlu lokufumana lwezixhobo;
(3) Jonga ukuba ingaba ujongano lwefayibha ye-optical luqhagamshelwe ngokuchanekileyo na, i-TX yendawo iqhagamshelwe kwi-RX ekude, kwaye i-TX ekude iqhagamshelwe kwi-RX yendawo. (d) Jonga ukuba ingaba isixhumi sefayibha ye-optical sifakwe ngokufanelekileyo na kujongano lwesixhobo, nokuba uhlobo lwe-jumper luyahambelana nojongano lwesixhobo, nokuba uhlobo lwesixhobo luyahambelana nefayibha ye-optical, nokuba ubude bothumelo lwesixhobo buyahambelana nomgama.
2. Isibane sesekethe esidibeneyo asikhanyi
(1) Jonga ukuba intambo yenethiwekhi ivuliwe na;
(2) Jonga ukuba uhlobo loqhagamshelwano luyahambelana na: amakhadi enethiwekhi kunye nee-routers kunye nezinye izixhobo zisebenzisa iintambo ezinqamlezayo, kwaye iiswitshi, ii-hubs kunye nezinye izixhobo zisebenzisa iintambo ezithe ngqo;
(3) Jonga ukuba izinga lokudluliselwa kwesixhobo liyahambelana na.
3. Ukulahleka okukhulu kwepakethi yenethiwekhi
(1) Isango lombane le-transceiver kunye ne-interface yesixhobo senethiwekhi, okanye imo ye-duplex ye-interface yesixhobo kuzo zombini iziphelo azihambelani;
(2) Kukho ingxaki ngentambo ejijekileyo kunye nentloko ye-RJ-45, ngoko ke jonga;
(3) Ingxaki yoqhagamshelo lwefayibha, nokuba i-jumper ihambelana ne-interface yesixhobo, nokuba i-pigtail ihambelana ne-jumper kunye nohlobo lwe-coupler, njl.njl.;
(4) Nokuba ukulahleka komgca wefayibha ye-optical kudlula na uvakalelo lokufumana izixhobo.
4. Emva kokuba i-transceiver ye-fiber optic iqhagamshelwe, iziphelo ezibini azikwazi ukunxibelelana
(1) Uqhagamshelo lwefayibha luyaguqulwa, kwaye ifayibha eqhagamshelwe kwi-TX kunye ne-RX iyatshintshwa;
(2) Ujongano lwe-RJ45 kunye nesixhobo sangaphandle aziqhagamshelwanga ngokuchanekileyo (nika ingqalelo kwi-straight-through kunye ne-splicing). Ujongano lwe-optical fiber (ceramic ferrule) aluhambelani. Olu phutha lubonakala kakhulu kwi-transceiver ye-100M enomsebenzi wolawulo lwe-photoelectric mutual, njenge-APC ferrule. I-pigtail eqhagamshelwe kwi-transceiver ye-PC ferrule ayizukunxibelelana ngokuqhelekileyo, kodwa ayiyi kuyichaphazela i-transceiver yolawulo lwe-mutual non-optical.
5. Vula kwaye ucime isiganeko
(1). Kusenokwenzeka ukuba ukuncitshiswa kwendlela yokukhanya kukhulu kakhulu. Ngeli xesha, imitha yamandla okukhanya ingasetyenziselwa ukulinganisa amandla okukhanya esiphelo sokwamkela. Ukuba ikufutshane noluhlu lovakalelo lokwamkela, ngokusisiseko ingagwetywa njengokusilela kwendlela yokukhanya ngaphakathi koluhlu lwe-1-2dB;
(2). Kusenokwenzeka ukuba iswitshi eqhagamshelwe kwi-transceiver inempazamo. Okwangoku, tshintsha iswitshi ngePC, oko kukuthi, ii-transceivers ezimbini ziqhagamshelwe ngqo kwiPC, kwaye zombini iziphelo ziyi-PING. Ukuba ayibonakali, ngokusisiseko ingagwetywa njengeswitshi. Impazamo;
(3). I-transceiver isenokuba nempazamo. Ngeli xesha, ungaqhagamshela zombini iziphelo ze-transceiver kwi-PC (ungadluli kwiswitshi). Emva kokuba zombini iziphelo zingenangxaki nge-PING, dlulisela ifayile enkulu (100M) okanye ngaphezulu ukusuka kwelinye icala ukuya kwelinye, kwaye uqaphele isantya sayo, ukuba isantya sicotha kakhulu (iifayile ezingaphantsi kwe-200M zinokudluliselwa ngaphezulu kwemizuzu eli-15), ngokusisiseko ingagwetywa njengokusilela kwe-transceiver.
6. Emva kokuba umatshini uqhekekile kwaye uqalise kwakhona, ubuyela kwisiqhelo
Le nto idla ngokubangelwa yiswitshi. Iswitshi iya kwenza ukufunyanwa kweempazamo ze-CRC kunye nokuqinisekiswa kobude kuyo yonke idatha efunyenweyo. Ukuba impazamo ifunyenwe, ipakethi iya kulahlwa, kwaye ipakethi echanekileyo iya kuthunyelwa.
Nangona kunjalo, ezinye iipakethi ezineempazamo kule nkqubo azinakubonwa xa kuhlolwa iimpazamo ze-CRC kunye nokujonga ubude bazo. Ezi pakethi aziyi kuthunyelwa okanye zilahlwe ngexesha lenkqubo yokudlulisela phambili. Ziya kuqokelelana kwi-dynamic buffer. (I-Buffer), ayinakuze ithunyelwe ngaphandle. Xa i-buffer igcwele, iya kubangela ukuba iswitshi idilike. Kuba ngeli xesha ukuqala kwakhona i-transceiver okanye ukuqala kwakhona iswitshi kunokubuyisela unxibelelwano kwisiqhelo.
Ixesha lokuthumela: Disemba-06-2021