I-Fiber optic transceiver iyiyunithi yokuguqula imidiya yokudlulisa ye-Ethernet eshintshanisa amasignali kagesi asontekile amabanga amafushane kanye namasignali optical amabanga amade. Ibizwa nangokuthi i-photoelectric converter (i-Fiber Converter) ezindaweni eziningi.
1. Isibani se-Link asikhanyi
(1) Hlola ukuthi umugqa wefayibha yokukhanya uvulekile yini;
(2) Hlola ukuthi ukulahleka komugqa we-optical fiber kukhulu kakhulu, okungaphezu kobubanzi bokwamukela imishini;
(3) Hlola ukuthi ngabe isixhumi se-optical fiber sixhunywe kahle, i-TX yendawo ixhunywe ku-RX ekude, futhi i-TX ekude ixhunywe ku-RX yendawo. (d) Hlola ukuthi ngabe isixhumi se-optical fiber sifakwe kahle yini kusixhumi sedivayisi, ukuthi uhlobo lwe-jumper luhambisana nesixhumi sedivayisi, ukuthi uhlobo lwedivayisi luhambisana ne-optical fiber, nokuthi ubude bokudluliswa kwedivayisi buhambisana nebanga.
2. Isibani se-Link sesekethe asikhanyi
(1) Hlola ukuthi ikhebula lenethiwekhi livuliwe yini;
(2) Hlola ukuthi uhlobo loxhumano luyahambisana yini: amakhadi enethiwekhi nama-router kanye neminye imishini isebenzisa izintambo ezijikelezayo, kanti amaswishi, ama-hub kanye neminye imishini isebenzisa izintambo eziqondile;
(3) Hlola ukuthi izinga lokudlulisa idivayisi liyahambisana yini.
3. Ukulahleka okukhulu kwephakethe lenethiwekhi
(1) Imbobo kagesi ye-transceiver kanye ne-interface yedivayisi yenethiwekhi, noma imodi ye-duplex ye-interface yedivayisi kuzo zombili izinhlangothi azifani;
(2) Kunenkinga ngekhebula elisontekile kanye nekhanda le-RJ-45, ngakho hlola;
(3) Inkinga yokuxhumeka kwefayibha, ukuthi i-jumper ihambisana yini ne-interface yedivayisi, ukuthi i-pigtail iyafana yini ne-jumper kanye nohlobo lwe-coupler, njll.;
(4) Ukuthi ukulahlekelwa komugqa we-optical fiber kudlula yini ukuzwela kokwamukela kwemishini.
4. Ngemva kokuba i-transceiver ye-fiber optic ixhunyiwe, iziphetho ezimbili azikwazi ukuxhumana
(1) Ukuxhumeka kwefayibha kuyaguqulwa, bese ifayibha exhunywe ku-TX kanye ne-RX iyashintshwa;
(2) Isixhumi esibonakalayo se-RJ45 kanye nedivayisi yangaphandle akuxhunyiwe kahle (qaphela ukuqondiswa ngqo kanye nokuxhumanisa). Isixhumi esibonakalayo sefayibha yokukhanya (i-ceramic ferrule) asifani. Leli phutha libonakala kakhulu ku-transceiver ye-100M enomsebenzi wokulawula okuhambisanayo we-photoelectric, njenge-APC ferrule. Umsila wengulube oxhunywe ku-transceiver ye-PC ferrule ngeke uxhumane ngokujwayelekile, kodwa ngeke kuthinte i-transceiver yokulawula okuhambisanayo okungeyona i-optical.
5. Vula futhi uvale isenzakalo
(1). Kungenzeka ukuthi ukuncishiswa kwendlela yokukhanya kukhulu kakhulu. Ngalesi sikhathi, imitha yamandla okukhanya ingasetshenziswa ukukala amandla okukhanya esiphelo sokwamukela. Uma iseduze nobubanzi bokuzwela kokwamukela, ingahlulelwa ngokuyisisekelo njengokwehluleka kwendlela yokukhanya ngaphakathi kobubanzi obungu-1-2dB;
(2). Kungenzeka ukuthi iswishi exhunywe ku-transceiver inephutha. Ngalesi sikhathi, shintsha iswishi nge-PC, okungukuthi, ama-transceiver amabili axhunywe ngqo ku-PC, futhi zombili iziphetho ziyi-PING. Uma ingaveli, ingahlulelwa ngokuyisisekelo njengeswishi. Iphutha;
(3). I-transceiver ingase ibe nephutha. Ngalesi sikhathi, ungaxhuma zombili iziphetho ze-transceiver ku-PC (ungadluli ku-switch). Ngemva kokuba zombili iziphetho zingenankinga ne-PING, dlulisela ifayela elikhulu (100M) noma ngaphezulu kusuka kolunye uhlangothi kuya kolunye, bese uqaphela ijubane layo, uma ijubane lihamba kancane kakhulu (amafayela angaphansi kuka-200M angadluliselwa isikhathi esingaphezu kwemizuzu engu-15), ngokuyisisekelo lingahlulelwa njengokwehluleka kwe-transceiver.
6. Ngemva kokuba umshini uphahlazekile futhi uqale kabusha, ubuyela esimweni esijwayelekile
Lesi simo ngokuvamile sibangelwa ukushintsha. Ukushintsha kuzokwenza ukutholwa kwephutha le-CRC kanye nokuqinisekiswa kobude kuyo yonke idatha etholiwe. Uma iphutha litholakala, iphakethe lizolahlwa, bese iphakethe elifanele lithunyelwa.
Kodwa-ke, amanye amaphakethe anamaphutha kule nqubo awakwazi ukutholwa ekuhlolweni kwamaphutha e-CRC kanye nobude. Amaphakethe anjalo ngeke athunyelwe noma alahlwe ngesikhathi senqubo yokudlulisela phambili. Azoqongelela ku-buffer eguquguqukayo. (I-Buffer), ayikwazi ukuthunyelwa ngaphandle. Uma i-buffer igcwele, izokwenza ukuthi iswishi iphahlazeke. Ngoba ngalesi sikhathi ukuqala kabusha i-transceiver noma ukuqala kabusha iswishi kungabuyisela ukuxhumana esimweni esijwayelekile.
Isikhathi sokuthunyelwe: Disemba-06-2021