Iingxaki kunye nezisombululo ezidibene nokufakwa kunye nokusetyenziswa kwe-transceivers optical fiber
Isinyathelo sokuqala: qala ubone ukuba ukukhanya kwesalathisi se-fiber optical transceiver okanye imodyuli ye-optical kunye ne-twisted pair port indicator light light ivuliwe?
1. Ukuba i-port optical port (FX) isalathisi se-A transceiver ivuliwe kunye ne-optical port (FX) isalathisi se-B transceiver ayikho, iphoso lisecaleni le-A transceiver: enye inokwenzeka: I-transceiver (TX) ukuhanjiswa kwe-Optical Izibuko libi kuba i-port ye-optical port (RX) ye-B transceiver ayifumani mqondiso we-optical;enye into enokwenzeka kukuba: kukho ingxaki kule khonkco yefiber ye-optical transmit port ye-A transceiver (TX), njenge-jumper optical ephukileyo.
2. Ukuba isalathisi se-FX se-transceiver sivaliwe, nceda uqinisekise ukuba ikhonkco yefiber idibene?Esinye isiphelo se-fiber jumper sixhunyiwe kwimodi ehambelanayo;esinye isiphelo sidityaniswe kwimowudi yomnqamlezo.
3. Isalathisi esijijekileyo (TP) sivaliwe, nceda uqinisekise ukuba uxhulumaniso lwesibini oluphothiweyo alulunganga okanye uxhulumaniso alulunganga?Nceda usebenzise i-continuity tester ukufumanisa (nangona kunjalo, isalathisi esijijekileyo sezinye ii-transceivers kufuneka silinde i-fiber optical chain Izibane emva kokuba indlela ixhunyiwe).
4. Ezinye ii-transceivers zineechweba ezimbini ze-RJ45: (i-ToHUB) ibonisa ukuba umgca wokudibanisa kwi-switch umgca ochanekileyo;(I-ToNode) ibonisa ukuba umgca wokudibanisa kwi-switch ngumgca we-crossover.
5. Ezinye iijeneretha zeenwele zine-MPR yokutshintsha kwicala: kuthetha ukuba umgca wokudibanisa kwi-switch yindlela echanekileyo;Ukutshintsha kwe-DTE: umgca woqhagamshelo kwiswitshi yindlela yokuwela ngaphezulu.
Inyathelo lesi-2: Hlalutya kwaye ugwebe ukuba ingaba ikhona na ingxaki malunga nokutsiba kwefayibha kunye neentambo zefiber optic?
1. Ukubona ukucinywa koqhagamshelwano lwefiber optical: sebenzisa isibane selaser, ukukhanya kwelanga, njl.ubone ukuba kukho ukukhanya okubonakalayo kwelinye icala?Ukuba kukho ukukhanya okubonakalayo, kubonisa ukuba i-fiber jumper ayiphulwanga.
2. Ukufunyanwa koxhumo lwentambo ye-optical kunye nokuqhawula: sebenzisa i-laser flashlight, ukukhanya kwelanga, umzimba okhanyayo ukukhanyisa isiphelo esinye se-optical cable connector okanye i-coupler;ubone ukuba kukho ukukhanya okubonakalayo kwelinye icala?Ukuba kukho ukukhanya okubonakalayo, kubonisa ukuba ikhebula le-optical aliphulwanga.
Inyathelo lesi-3: Ingaba isiqingatha / indlela epheleleyo yokuphindaphinda ayilunganga?
Ezinye ii-transceivers zineenguqu ze-FDX kwicala: i-duplex epheleleyo;Ukutshintsha kwe-HDX: isiqingatha se-duplex.
Inyathelo lesi-4: Vavanya ngemitha yamandla okukhanya
Amandla akhanyayo we-fiber optical transceiver okanye imodyuli ye-optical phantsi kweemeko eziqhelekileyo: i-multimode: phakathi kwe-10db-18db;imowudi enye 20 km: phakathi -8db–15db;imowudi enye 60 km: phakathi -5db–12db;Ukuba umbane okhanyayo we-fiber optical transceiver uphakathi: -30db-45db, ngoko kunokugwetywa ukuba kukho ingxaki kule transceiver.
Imiba efuna ingqalelo ye-optical fiber transceiver
Ngenxa yokulula, kungcono ukusebenzisa umbuzo kunye nesitayela sokuphendula, esinokubonwa ngokujonga nje.
1. Ngaba i-transceiver ebonakalayo ngokwayo iyayixhasa i-full-duplex kunye ne-half-duplex?
Ezinye iitshiphusi emarikeni zinokusebenzisa kuphela imeko-bume ephindwe kabini ngoku, kwaye ayinakuxhasa isiqingatha se-duplex.Umzekelo, ukuba ziqhagamshelwe kwezinye iibrand zokutshintsha (SWITCH) okanye iiseti zehub (HUB), kwaye isebenzisa imowudi enesiqingatha se-duplex, ngokuqinisekileyo iya kubangela iingxabano ezinzulu kunye nokulahleka kwepakethi.
2. Ngaba uvavanye unxibelelwano nezinye ii-fiber transceivers?
Okwangoku, kukho ngakumbi nangakumbi ii-fiber optic transceivers kwimarike.Ukuba ukuhambelana kwee-transceivers zeempawu ezahlukeneyo akuvavanywanga kwangaphambili, kuya kubangela ukulahleka kwepakethi, ixesha elide lokuhambisa, kunye nokukhawuleza nokucotha.
3. Ngaba kukho isixhobo sokhuseleko sokuthintela ukulahleka kwepakethi?
Ukuze kuncitshiswe iindleko, abanye abavelisi basebenzisa indlela yokudlulisa idatha yerejista ukunciphisa iindleko.Ukungalungi okukhulu kwale ndlela kukuba ukuhanjiswa akuzinzile kunye nokulahleka kwepakethi.Okona kulungileyo kukusebenzisa uyilo lomgca we-buffer, okhuselekileyo Kuphephe ukulahleka kwepakethi yedatha.
4. Ukuziqhelanisa nobushushu?
I-fiber optical transceiver ngokwayo iya kuvelisa ukushisa okuphezulu xa isetyenziswa.Xa iqondo lokushisa liphezulu kakhulu (akukho ngaphezu kwe-50 ° C), ingaba i-transceiver ye-fiber optical isebenza ngokufanelekileyo yinto efanelekileyo yokuqwalaselwa kwabathengi!
5. Ngaba iyahlangabezana nomgangatho we-IEEE802.3u?
Ukuba i-transceiver ye-fiber optical ihambelana nomgangatho we-IEEE802.3, oko kukuthi, ixesha lokulibaziseka lilawulwa kwi-46bit, ukuba lidlula i-46bit, lithetha ukuba umgama wokuhanjiswa kwe-transceiver optical fiber uya kufinyezwa.
Isishwankathelo kunye nezisombululo zeengxaki eziqhelekileyo ze-fiber optic transceivers
Zininzi iintlobo ze-fiber optic transceivers, kodwa indlela yokuxilongwa kwempazamo iyafana.Isishwankathelo, iimpazamo ezenzeka kwi-fiber optic transceivers zezi zilandelayo:
1. Isibane saMandla sicimile, unikezelo lwamandla lunempazamo;
2. Ukukhanya kwekhonkco kucinyiwe, kwaye impazamo inokuba ngolu hlobo lulandelayo:
a.Jonga ukuba umgca wefiber optical waphukile
b.Khangela ukuba ilahleko yomgca wefiber inkulu kakhulu kwaye idlula uluhlu olufunyenweyo lwesixhobo
c.Jonga ukuba i-fiber interface idityaniswe ngokuchanekileyo, i-TX yendawo iqhagamshelwe kwi-RX ekude, kwaye i-TX ekude iqhagamshelwe kwi-RX yendawo.
d.Jonga ukuba isinxibelelanisi sosinga olubonakalayo sifakiwe kujongano lwesixhobo, ukuba uhlobo lwe-jumper luhambelana nojongano lwesixhobo, ingaba uhlobo lwesixhobo luyahambelana nosinga olubonakalayo, kwaye nokuba ubude bothumelo besixhobo buhambelana nomgama.
3. Isibane soQhagamshelwano lwesekethe sivaliwe, kwaye impazamo ingaba ngolu hlobo lulandelayo:
a.Khangela ukuba intambo yenethiwekhi yophukile;
b.Khangela ukuba uhlobo loqhagamshelwano luhambelana: amakhadi enethiwekhi kunye nee-routers zisebenzisa iintambo ezinqamlezileyo, kunye nokutshintsha, ii-hubs kunye nezinye izixhobo zisebenzisa iintambo ezithe ngqo;
c.Jonga ukuba umgangatho wothumelo lwesixhobo uyahambelana na;
4. Ukulahleka kwepakethi yenethiwekhi kubi kakhulu, kwaye ukusilela okunokwenzeka kolu hlobo lulandelayo:
a.Izibuko lombane le-transceiver alihambelani nojongano lwesixhobo senethiwekhi, okanye imowudi ephindwe kabini yojongano lwesixhobo kuzo zozibini iziphelo.
b.Ukuba kukho ingxaki ngesibini esijijekileyo kunye nentloko ye-RJ-45, khangela
c.Ingxaki yoqhagamshelo lwefayibha ye-Optical, nokuba i-jumper ilungelelaniswe ne-interface yesixhobo, kwaye nokuba i-pigtail ihambelana nohlobo lwe-jumper kunye ne-coupler.
5. Emva kokuba i-fiber transceiver ixhunyiwe, iziphelo ezimbini azikwazi ukunxibelelana
a I-fiber optical ibuyiselwa umva, kwaye iifiber zamehlo eziqhagamshelwe kwi-TX kunye ne-RX ziyatshintshwa.
b.I-interface ye-RJ45 ayixhunyiwe ngokufanelekileyo kwisixhobo sangaphandle (qaphela i-straight-through and splicing)
Ujongano lwefiber optical (i-ceramic ferrule) ayihambelani.Eli phutha libonakaliswa ngokukodwa kwi-transceiver ye-100M kunye nomsebenzi wokulawula umbane we-photoelectric.I-photoelectric mutual control transceiver ayinayo umphumo.
6. Isiganeko sokuvula
a.Kungenzeka ukuba ukuthotywa kwendlela ye-optical kukhulu kakhulu.Ngeli xesha, amandla okukhanya okuphela kokufumana anokulinganiswa ngemitha yamandla optical.Ukuba ikufuphi noluhlu lovakalelo olufumanayo, lunokugwetywa ngokusisiseko njengokusilela kwindlela yokubona phakathi koluhlu lwe-1-2dB.
b.Iswitshi eqhagamshelwe kwi-transceiver inokuba nempazamo.Ngeli xesha, utshintsho lutshintshwa ngePC, oko kukuthi, i-transceivers ezimbini zixhunywe ngokuthe ngqo kwi-PC, kwaye iziphelo ezimbini zidibene ne-PING.
c.I-transceiver inokuba nempazamo.Ngeli xesha, qhagamshela iziphelo ezimbini ze-transceiver kwi-PC (ungadluli kwi-switch).Emva kokuba iziphelo ezimbini zingenayo ingxaki nge-PING, dlulisela ifayile enkulu (100M) ukusuka kwelinye icala ukuya kwelinye.Qwalasela i-Speed yayo, ukuba isantya sicotha kakhulu (ngaphezu kwemizuzu eyi-15 yokuhanjiswa kwefayile ngaphantsi kwe-200M), inokugwetywa ngokusisiseko njengokungaphumeleli kwe-transceiver.
d.Unxibelelwano luyaphazamiseka emva kwexesha elithile, oko kukuthi, unxibelelwano aluphumeleli, kwaye lubuyela kwisiqhelo emva kokuqalisa kwakhona.
Le nto ibangelwa ngokubanzi kukutshintsha.Umtshintshi uya kwenza i-CRC yokubona impazamo kunye nokukhangela ubude kuyo yonke idatha efunyenweyo, kwaye khangela ukuba ipakethe engalunganga iya kulahlwa, kwaye ipakethe echanekileyo iya kuthunyelwa. kunye nokujonga ubude.Iipakethi ezinjalo aziyi kuthunyelwa ngaphandle okanye zilahlwe ngexesha lenkqubo yokuthunyelwa, kwaye ziya kuqokelela kwi-cache eguquguqukayo.Kwi (buffer), ayinakuze ithunyelwe ngaphandle.Xa isithinteli sigcwele, siya kubangela ukuba iswitshi iphazamiseke.Ngenxa yokuba ukuqalisa kwakhona i-transceiver okanye ukuqalisa kwakhona ukutshintshela ngeli xesha kunokubuyisela unxibelelwano kwindawo eqhelekileyo, abasebenzisi badla ngokucinga ukuba yingxaki ye-transceiver.
8. Indlela yokuvavanya i-Transceiver
Ukuba ufumanisa ukuba kukho ingxaki ngoqhagamshelwano lwe-transceiver, nceda uvavanye ngokwezi ndlela zilandelayo ukufumanisa unobangela wokusilela.
a.Uvavanyo olusondeleyo:
Iikhomputha kwiziphelo zombini ziyakwazi uku-ping, ukuba zinokuthi zifakwe, zibonisa ukuba akukho ngxaki kunye ne-fiber optic transceiver.Ukuba uvavanyo olusondeleyo aluphumeleli ukunxibelelana, lunokujongwa njengokusilela kwe-fiber transceiver.
b Uvavanyo olukude:
Iikhompyuter kuzo zombini iziphelo zidityaniswe nePING.Ukuba i-PING ayifumaneki, kufuneka ukhangele ukuba uxhulumaniso lwendlela ye-optical luqhelekile kwaye ingaba ukuhanjiswa kunye nokufumana amandla e-transceiver ye-fiber optical kuphakathi koluhlu oluvumelekileyo.Ukuba i-pinged, ingqina ukuba uxhumano lwe-optical luqhelekileyo.Inokuthi igwetywe ukuba iphoso likwi-switch.
c.Uvavanyo olukude ukujonga indawo enempazamo:
Okokuqala qhagamshela enye isiphelo kwi-switch kunye neziphelo ezimbini kwi-PING.Ukuba akukho siphoso, sinokugwetywa njengempazamo yolunye utshintsho.
Iingxaki zempazamo eziqhelekileyo zihlalutywa ngezantsi ngombuzo kunye nempendulo
Ngokokugcinwa kwemihla ngemihla kunye neengxaki zabasebenzisi, ndiya kuzishwankathela nganye nganye ngendlela yombuzo kunye nempendulo, ngethemba lokuzisa uncedo oluthile kubasebenzi bezolondolozo, ukufumanisa unobangela wempazamo ngokwemeko yempazamo, ndichaze impazamo. point, kunye “nokulungisa iyeza”.
1. Q: Luluphi uhlobo loxhumo olusetyenziswayo xa i-transceiver RJ45 port ixhunyiwe kwezinye izixhobo?
Impendulo: I-port ye-RJ45 ye-transceiver ixhunywe kwikhadi lenethiwekhi ye-PC (i-DTE data data terminal) usebenzisa i-pair-twisted pair, kwaye iqhagamshelwe kwi-HUB okanye i-SWITCH (izixhobo zonxibelelwano lwedatha ye-DCE) usebenzisa i-parallel twisted pair.
2. Q: Sisiphi isizathu sokuba ukukhanya kwe-TxLink kuvaliwe?
Impendulo: 1. Isibini esijijekileyo sidityanisiwe;2. Intloko yekristale ephothiweyo ayidibanisi kakuhle nesixhobo okanye umgangatho wesibini esijijekileyo ngokwawo;3. Isixhobo asiqhagamshelwanga kakuhle.
3. Q: Sisiphi isizathu sokuba ukukhanya kwe-TxLink kungabonakali kodwa kuhlale emva kokuba i-fiber ixhunyiwe ngokuqhelekileyo?
Impendulo: 1. Umgama wothumelo udla ngokuba mde kakhulu;2. Ukuhambelana nekhadi lenethiwekhi (iqhagamshelwe kwiPC).
4. Q: Sisiphi isizathu sokuba ukukhanya kweFxLink kuvaliwe?
Intambo yefiber ixhunyiwe ngokungalunganga, indlela yokudibanisa echanekileyo yi-TX-RX, i-RX-TX, okanye imodi yefiber ayilungile;
Umgama wothumelo mde kakhulu okanye ilahleko ephakathi inkulu kakhulu, idlula ilahleko engeyiyo yale mveliso.Isisombululo kukuthatha amanyathelo okunciphisa ilahleko ephakathi okanye endaweni yayo nge-transceiver yomgama omde wothumelo.
Ubushushu obusebenzayo be-optical fiber transceiver buphezulu kakhulu.
5. Q: Yintoni isizathu sokuba ukukhanya kweFxLink kungabonakali kodwa kuhlale emva kokuba i-fiber ixhunyiwe ngokuqhelekileyo?
Impendulo: Esi siphoso sibangelwa ngokubanzi ukuba umgama wothumelo ube mde kakhulu okanye ilahleko ephakathi inkulu kakhulu, idlula ilahleko engeyiyo yale mveliso.Isisombululo kukunciphisa ilahleko ephakathi okanye endaweni yayo nge-transceiver yomgama omde wothumelo.
6. Umbuzo: Kufuneka ndenze ntoni ukuba izibane ezihlanu zivuliwe zonke okanye isalathisi siqhelekile kodwa asikwazi ukuthumela?
Impendulo: Ngokuqhelekileyo, unokucima amandla kwaye uqalise kwakhona kwisiqhelo.
7. Q: Yintoni ubushushu be-ambient ye-transceiver?
Impendulo: Imodyuli ye-fiber optical ichaphazeleka kakhulu kubushushu be-ambient.Nangona inomjikelezo wokuzuza ngokuzenzekelayo, emva kokuba ubushushu budlula uluhlu oluthile, amandla optical adluliselwe kwimodyuli ye-optical iyachaphazeleka kwaye iyancitshiswa, ngaloo ndlela iyancipha umgangatho wesignali ye-optical network kwaye ibangele ilahleko yepakethe. ukukhupha ikhonkco le-optical;(ngokubanzi ubushushu bokusebenza kwemodyuli yefiber optical inokufikelela kuma-70 ℃).egqitha kumda ophezulu wobude befreyimu ye-optical transceiver kwaye ilahlwe yiyo, ebonisa umlinganiselo ophezulu okanye ongaphumelelanga welahleko yepakethe.
Iyunithi yokudlulisa ubuninzi, ipakethe ye-IP ngokubanzi malunga ne-18 bytes, kunye ne-MTU yi-1500 bytes;ngoku abavelisi bezixhobo zonxibelelwano oluphezulu baneeprotocol zangaphakathi zenethiwekhi, ngokuqhelekileyo besebenzisa indlela yepakethe eyahlukileyo, baya kwandisa ipakethe ye-IP ngaphezulu, ukuba idatha ngamagama angama-1500 Emva kwepakethi ye-IP, ubungakanani bepakethi ye-IP iya kudlula i-18 kwaye ilahlwe) , ukuze ubungakanani bepakethi ethunyelwe kumgca budibana nomda wesixhobo sothungelwano kubude besakhelo.I-1522 bytes yeepakethi zongezwa i-VLANtag.
9. Umbuzo: Emva kokuba i-chassis isebenze ixesha elithile, kutheni amanye amakhadi esilela ukusebenza kakuhle?
Impendulo: Unikezelo lwamandla lwe-chassis kwangoko lwamkela imowudi yokudlulisa.Ukungonelanga komda wonikezelo lwamandla kunye nelahleko yentambo enkulu zezona ngxaki ziphambili.Emva kokuba i-chassis isebenze ixesha elide, amanye amakhadi akakwazi ukusebenza ngokuqhelekileyo.Xa amanye amakhadi ekhutshiwe, amakhadi aseleyo asebenza ngokwesiqhelo.Emva kokuba i-chassis isebenze ixesha elide, i-oxidation yokudibanisa ibangela ilahleko enkulu yokudibanisa.Olu nikezelo lwamandla luwela ngaphaya kwemimiselo.Uluhlu olufunekayo lunokubangela ukuba ikhadi le-chassis lingaqhelekanga.Amandla aphezulu e-Schottky diode asetyenziselwa ukwahlula kunye nokukhusela i-chassis yamandla okutshintsha, ukuphucula ifom yekhonkco, kunye nokunciphisa ukuhla kombane okubangelwa yisekethe yokulawula kunye nekhonkco.Kwangaxeshanye, ukudityaniswa kwamandla ombane kuye kwandiswa, nto leyo eyenza ukuba unikezelo lwamandla olugciniweyo lube lula kwaye lukhuseleke, kwaye luyenza ilunge ngakumbi kwiimfuno zexesha elide elingaphazanyiswanga.
10. Q: Yintoni umsebenzi onayo i-alamu yekhonkco enikezelweyo kwi-transceiver?
Impendulo: I-transceiver inomsebenzi we-alarm yekhonkco (linkloss).Xa i-fiber inqanyuliwe, iya kuzibuyisela ngokuzenzekelayo kwi-port yombane (oko kukuthi, isalathisi kwi-port yombane nayo iya kuphuma).Ukuba iswitshi inolawulo lwenethiwekhi, iya kubonakaliswa ngokutshintsha kwangoko.Isoftware yolawulo lwenethiwekhi.