I-Optical fiber transceiver yiyunithi yokuguqula imidiya ye-Ethernet etshintshanisa umgama omfutshane ojijekileyo wemiqondiso yombane kunye nemiqondiso yokubona ekude.Ikwabizwa ngokuba sisiguquli sefayibha kwiindawo ezininzi.
Ii-transceivers ze-fiber optical zisetyenziswa ngokubanzi kwiindawo zenethiwekhi zangempela ezingenako ukugqunywa kwiintambo ze-Ethernet kwaye kufuneka zisebenzise iifayili ze-optical ukuze zandise umgama wokuhambisa, kwaye zihlala zifumaneka kwizicelo zomaleko wokufikelela kwinethiwekhi ye-broadband ye-metropolitan;njengale: ukuhanjiswa kwemifanekiso yevidiyo ephezulu yokubeka iliso kunye nobunjineli bokhuseleko;Ikwadlala indima enkulu ekuncedeni ukudibanisa imayile yokugqibela yefiber kwimetro nangaphaya.
Iitransceivers zefiber optical ziya kudibana neengxaki ezahlukeneyo ngexesha lokusetyenziswa.Namhlanje, ndiza kubelana nawe ngeempazamo eziqhelekileyo kunye nezisombululo ze-optical fiber transceivers.
1. Isibane seLink sicinyiwe
(1) Khangela ukuba umgca wefiber optical waphukile;
(2) Khangela ukuba ngaba ilahleko yomgca we-fiber optical inkulu kakhulu kwaye idlula uluhlu olufunyenweyo lwezixhobo;
(3) Khangela ukuba i-fiber optical interface idityaniswe ngokuchanekileyo, i-TX yendawo iqhagamshelwe kwi-RX ekude, kwaye i-TX ekude iqhagamshelwe kwi-RX yendawo.
(4) Khangela ukuba isinxibelelanisi sefiber optical sifakwe kakuhle kujongano lwesixhobo, ingaba uhlobo lokutsiba luyahambelana nojongano lwesixhobo, ingaba udidi lwesixhobo luyahambelana nosinga olubonakalayo, nokuba ubude bothumelo lwesixhobo buhambelana nomgama.
2. Isibane soqhagamshelwano lwesekethe sicinyiwe
(1), khangela ukuba intambo yenethiwekhi ivuliwe na;
(2) Khangela ukuba uhlobo loqhagamshelwano luyahambelana na: ikhadi lenethiwekhi kunye neerotha kunye nezinye izixhobo zisebenzisa iintambo ezinqamlekileyo, kunye nokutshintsha, ii-hubs kunye nezinye izixhobo zisebenzisa iintambo ezithe ngqo;
(3) Jonga ukuba isantya sothumelo lwesixhobo siyahambelana na.
3. Ilahleko enkulu yepakethe yenethiwekhi
(1) Izibuko lombane le-transceiver alihambelani nojongano lwesixhobo sothungelwano, okanye imowudi ephindwe kabini yojongano lwesixhobo kuzo zozibini iziphelo;
(2) Ukuba kukho ingxaki ngesibini esijijekileyo kunye nentloko ye-RJ-45, khangela;
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(4) Ingaba ilahleko yomgca we-fiber optical idlula ukuvalelwa kokwamkelwa kwesixhobo.
4. Emva kokuba i-transceiver ye-fiber optical ixhunyiwe, iziphelo ezimbini azikwazi ukunxibelelana
(1) I-fiber optical fibers iguqulwa, kwaye i-fiber optical exhunywe kwi-TX kunye ne-RX iguqulwa;
(2) Ukudibanisa phakathi kwe-interface ye-RJ45 kunye nesixhobo sangaphandle asichanekanga (nikela ingqalelo kwi-straight-through kunye ne-splicing) kunye ne-fiber optical interface (i-ceramic ferrule) ayihambelani.Eli phutha libonakaliswa ngokukodwa kwi-transceiver ye-100M kunye nomsebenzi wokulawula ngokubambisana kwe-optoelectronic, njenge-APC ferrule.Ukuba i-pigtail ixhunyiwe kwi-transceiver ye-ferrule ye-PC, ayiyi kukwazi ukunxibelelana ngokuqhelekileyo, kodwa ayiyi kuchaphazela uxhulumaniso lwe-non-optical-electrical mutual control transceiver.
5. Ukuvula nangaphandle kwesiganeko
(1) Kungenzeka ukuba indlela yokubona indlela yokubona inkulu kakhulu.Ngeli xesha, imitha yamandla optical ingasetyenziselwa ukulinganisa amandla optical ekupheleni kokufumana.Ukuba ikufuphi noluhlu olufumanayo lovakalelo, lunokugwetywa ngokusisiseko njengokungaphumeleli kwendlela ye-optical phakathi koluhlu lwe-1-2dB;
(2) Kungenzeka ukuba umtshini oqhagamshelwe kwi-transceiver unephutha.Ngeli xesha, tshintsha utshintsho ngePC, oko kukuthi, ii-transceivers ezimbini zixhunywe ngokuthe ngqo kwi-PC, kwaye iziphelo zombini zi-pinged.impazamo;
(3) I-transceiver ingaba nephutha.Ngeli xesha, unokudibanisa zombini iziphelo ze-transceiver kwi-PC (kungekhona ngokutshintsha).Emva kokuba iziphelo ezimbini zingenayo ingxaki nge-PING, dlulisela ifayile enkulu (100M) ukusuka kwelinye icala ukuya kwelinye.Jonga isantya salo, esicotha kakhulu (ukudluliselwa kweefayile ngaphantsi kwe-200M ngaphezu kwemizuzu eyi-15), inokugwetywa ngokusisiseko njengokusilela kwe-transceiver.
6. Emva kokuphahlazeka kunye nokuqalisa kwakhona, iya kubuyela kwisiqhelo
Le nto ibangelwa ngokubanzi kukutshintsha.Ukutshintsha kuya kwenza ubhaqo lwempazamo ye-CRC kunye nokujonga ubude kuyo yonke idatha efunyenweyo.Iipakethi ezineempazamo ziya kulahlwa, kwaye iipakethi ezichanekileyo ziya kuthunyelwa.
Nangona kunjalo, ezinye iipakethi eziphosakeleyo kule nkqubo azikwazi ukufunyanwa kwi-CRC yokubona impazamo kunye nokuqinisekisa ubude.Ezo pakethe aziyi kuthunyelwa okanye zilahlwe ngexesha lenkqubo yokudlulisa, kwaye ziya kuqokelelana kwisithinteli esiguqukayo.(buffer), ayinakuze ithunyelwe ngaphandle.Xa isithinteli sigcwele, siya kubangela ukuba iswitshi iphazamiseke.Ngenxa yokuba ngeli xesha ukuqalisa kwakhona i-transceiver okanye ukuqala kwakhona ukutshintshela kunokwenza unxibelelwano lubuyele kwisiqhelo.
Ixesha lokuposa: Mar-17-2022