I-Optical fibre transceiver iyiyunithi yokuguqula imidiya ye-Ethernet eshintshanisa amasiginali kagesi asontekile amabanga amade kanye namasiginali okubona amabanga amade.Ibizwa nangokuthi i-fiber converter ezindaweni eziningi.
Ama-transceivers e-fiber optical ngokuvamile asetshenziswa ezindaweni zangempela zenethiwekhi ezingakwazi ukumbozwa yizintambo ze-Ethernet futhi kufanele zisebenzise imicu ye-optical ukuze kwandiswe ibanga lokudlulisela, futhi ngokuvamile zitholakala ekusetshenzisweni kwesendlalelo sokufinyelela samanethiwekhi wendawo ye-broadband;njengokuthi: ukuhanjiswa kwesithombe sevidiyo enencazelo ephezulu yokuqapha nobunjiniyela bezokuphepha;Futhi idlala indima enkulu ekusizeni ukuxhuma imayela lokugcina lefayibha ku-metro nangale kwayo.
Ama-transceivers e-fiber optical azohlangabezana nezinkinga ezahlukahlukene ngesikhathi sokusetshenziswa.Namuhla, ngizokwabelana nawe ngamaphutha ajwayelekile kanye nezixazululo ze-optical fiber transceivers.
1. Isibani sesixhumanisi sivaliwe
(1) Hlola ukuthi umugqa we-fiber optical uphukile yini;
(2) Hlola ukuthi ingabe ukulahleka komugqa we-fiber optical kukhulu kakhulu futhi kuyaludlula yini uhla lokuthola okokusebenza;
(3) Hlola ukuthi isixhumi esibonakalayo se-fiber optical sixhunywe ngendlela efanele, i-TX yendawo ixhumeke ku-RX ekude, futhi i-TX ekude ixhumeke ku-RX yendawo.
(4) Hlola ukuthi isixhumi se-fiber optical sifakwe kahle yini kusixhumi esibonakalayo sedivayisi, ukuthi uhlobo lwe-jumper lufana nesixhumi esibonakalayo sedivayisi, noma uhlobo lwedivayisi lufana ne-optical fibre, nokuthi ubude bokudluliswa kwedivayisi bufana nebanga.
2. Isibani se-circuit Link sivaliwe
(1), hlola ukuthi ikhebula lenethiwekhi livulekile yini;
(2) Hlola ukuthi uhlobo lokuxhuma luyahambisana yini: ikhadi lenethiwekhi namarutha kanye nezinye izisetshenziswa zisebenzisa izintambo ezinqamulayo, futhi amaswishi, amahabhu nezinye izinto zisebenzisa izintambo eziqondile;
(3) Hlola ukuthi izinga lokudlulisela ledivayisi liyahambisana yini.
3. Ukulahlekelwa kwephakethe lenethiwekhi okukhulu
(1) Imbobo kagesi ye-transceiver ayifani nesixhumi esibonakalayo sedivayisi yenethiwekhi, noma imodi eyi-duplex yesixhumi esibonakalayo sedivayisi kuzo zombili iziphetho;
(2) Uma kunenkinga ngebhangqa elisontekile kanye nekhanda le-RJ-45, lihlole;
(3) Izinkinga zokuxhuma i-Optical fibre, noma ngabe i-jumper iqondaniswe nesixhumi esibonakalayo sedivayisi, noma ngabe i-pigtail ifana ne-jumper kanye nohlobo lwe-coupler, njll.;
(4) Ukuthi ukulahlekelwa komugqa we-fiber optical kudlula ukuzwela kokwamukela kwemishini.
4. Ngemuva kokuthi i-transceiver ye-fiber optical ixhunyiwe, iziphetho ezimbili azikwazi ukuxhumana
(1) Imicu yokubona iyahlehliswa, futhi imicu yokubona exhunywe ku-TX ne-RX iyahlehliswa;
(2) Ukuxhumana phakathi kwe-interface ye-RJ45 kanye nedivayisi yangaphandle akulungile (nake ukuqondisa okuqondile nokuhlanganisa) kanye ne-optical fiber interface (i-ceramic ferrule) ayifani.Leli phutha libonakala kakhulu ku-transceiver engu-100M enomsebenzi wokulawula mutual we-optoelectronic, njenge-APC ferrule.Uma i-pigtail ixhunywe ku-transceiver ye-ferrule ye-PC, ngeke ikwazi ukuxhumana ngokujwayelekile, kodwa ngeke ithinte ukuxhumeka kwe-transceiver yokulawula okuhlangene okungenayo i-optical-electrical.
5. Ukuvula nangaphandle kwesenzakalo
(1) Kungenzeka ukuthi ukuncipha kwendlela yokubona kukhulu kakhulu.Ngalesi sikhathi, imitha yamandla e-optical ingasetshenziswa ukukala amandla okubona kwesiphetho sokwamukela.Uma iseduze nebanga elitholayo lokuzwela, lingahlulelwa ngokuyisisekelo njengokuhluleka kwendlela yokubona phakathi kwebanga elingu-1-2dB;
(2) Kungenzeka ukuthi inkinobho exhunywe ku-transceiver inephutha.Ngalesi sikhathi, shintsha inkinobho nge-PC, okungukuthi, ama-transceiver amabili axhumeke ngqo ku-PC, futhi iziphetho ezimbili zi-pinged.Iphutha;
(3) I-transceiver ingase ibe nephutha.Ngalesi sikhathi, ungakwazi ukuxhuma zombili iziphetho ze-transceiver ku-PC (hhayi ngokusebenzisa iswishi).Ngemuva kokuthi iziphetho ezimbili zingenayo inkinga nge-PING, dlulisa ifayela elikhulu (100M) ukusuka komunye umkhawulo kuya komunye.Qaphela isivinini salo, njengokunensa kakhulu (ukudluliswa kwamafayela angaphansi kuka-200M ngaphezu kwemizuzu eyi-15), kungabhekwa njengokuhluleka kwe-transceiver.
6. Ngemuva kokuphahlazeka nokuqalisa kabusha, izobuyela kokujwayelekile
Lesi simo ngokuvamile sibangelwa ukushintsha.Iswishi izokwenza ukutholwa kwephutha le-CRC futhi ihlole ubude kuyo yonke idatha etholiwe.Amaphakethe anamaphutha azolahlwa, futhi amaphakethe alungile azothunyelwa.
Nokho, amanye amaphakethe anephutha kule nqubo awakwazi ukutholwa ekutholeni iphutha le-CRC nokuqinisekisa ubude.Amaphakethe anjalo ngeke athunyelwe noma alahlwe phakathi nenqubo yokudlulisela phambili, futhi azonqwabelana kubhafa eguqukayo.(i-buffer), ayikwazi ukuthunyelwa ngaphandle.Uma isilondolozi sesigcwele, sizobangela ukuthi iswishi iphahlazeke.Ngoba ngalesi sikhathi ukuqalisa kabusha i-transceiver noma ukuqala kabusha iswishi kungenza ukuxhumana kubuyele kokujwayelekile.
Isikhathi sokuthumela: Mar-17-2022