Izindaba
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Ingakanani ibanga lokudlulisela eliphezulu leswishi yokuphakela amandla ye-POE?
Ukuze sazi ibanga eliphakeme lokudluliswa kwe-PoE, kufanele siqale sithole ukuthi yiziphi izinto ezibalulekile ezinquma ibanga eliphakeme.Eqinisweni, ukusebenzisa izintambo ezijwayelekile ze-Ethernet (ibhangqa elisontekile) ukudlulisa amandla e-DC kungathwalwa ngebanga elide, elikhulu kakhulu kune-dist yokudlulisela...Funda kabanzi -
Iyini imojuli ye-optical?
Imodyuli ye-optical yakhiwe ngamadivaysi e-optoelectronic, ama-circuits asebenzayo kanye ne-optical interfaces.Idivayisi ye-optoelectronic ihlanganisa izingxenye ezimbili: ukudlulisa nokwamukela.Kalula nje, umsebenzi we-optical module ukuguqula isignali kagesi ibe isignali yokubona lapho kuthunyelwa ...Funda kabanzi -
Izitayela zemakethe yemishini yenethiwekhi yaseChina
Ubuchwepheshe obusha nezinhlelo zokusebenza ezintsha ziyaqhubeka nokugqugquzela ukukhula okuphezulu kwethrafikhi yedatha, okulindeleke ukuthi iqhube imakethe yemishini yenethiwekhi ukuthi idlule ukukhula okulindelekile.Ngokukhula kwethrafikhi yedatha yomhlaba wonke, inani lamadivayisi we-inthanethi nalo likhula ngokushesha.Ngesikhathi esifanayo,...Funda kabanzi -
Uyini umehluko phakathi kweswishi ye-Ethernet nerutha?
Nakuba zombili zisetshenziselwa ukushintsha inethiwekhi, kunomehluko ekusebenzeni.Umehluko 1: Umthwalo kanye ne-subnetting kuhlukile.Kungaba khona indlela eyodwa kuphela phakathi kokushintsha kwe-Ethernet, ukuze ulwazi lugxiliswe kusixhumanisi esisodwa sokuxhumana futhi alukwazi ukwabiwa ngokuguquguqukayo ukuze bhalansise...Funda kabanzi -
Uhlobo lwe-optical transceiver nohlobo lwesixhumi esibonakalayo
I-Optical Transceiver iyisisetshenziswa esibulalayo sokudlulisa isignali yokubona.1. Uhlobo lwe-Optical transceiver: I-Optical Transceiver iyisisetshenziswa esiguqula i-E1 eminingi (izinga lokudluliswa kwedatha lemigqa ye-trunk, ngokuvamile ngenani elingu-2.048Mbps, leli zinga lisetshenziswa e-China naseYurophu) libe yi-opti...Funda kabanzi -
I-Transmitter?Umamukeli?Ingabe ukuphela kwe-A/B kwesiguquli semidiya yefayibha kungaxhunywa ngokunganaki?
Kuma-transceivers e-fiber optical, umsebenzi oyinhloko we-transceiver ukunweba ibanga lokudluliswa kwenethiwekhi, okunganciphisa iphutha lokuthi ikhebula lenethiwekhi alikwazi ukudlulisa ibanga elide ngokwezinga elithile, futhi ilethe ukunethezeka ekudlulisweni kwekhilomitha lokugcina, kodwa kulabo. I-WHO...Funda kabanzi -
Iyiphi i-fiber media converter ehambisayo futhi eyamukelayo?
Lapho sidlulisela amabanga amade, ngokuvamile sisebenzisa imicu yokubona ukuze sidlulise.Ngenxa yokuthi ibanga lokudlulisela le-fiber optical lide kakhulu, ngokuvamile, ibanga lokudlulisela le-fiber yemodi eyodwa lingaphezu kwamakhilomitha angu-20, futhi ibanga lokudlulisela le-multi-mode fiber lingafinyelela phezulu ...Funda kabanzi -
Uyini umehluko phakathi kwe-AOC ne-DAC?kanjani ukukhetha?
Ngokuvamile, ikhebula elibonakalayo elisebenzayo(AOC) kanye nekhebuli yokunamathisela eqondile (DAC)zinomehluko olandelayo: ① Ukusetshenziswa kwamandla okuhlukile: ukusetshenziswa kwamandla kwe-AOC kungaphezulu kwalokho kwe-DAC;②Amabanga okudlulisela ahlukene: Ngokombono, ibanga elide lokudlulisela le-AOC lingafinyelela ku-100M,...Funda kabanzi -
Iyini indima ye-fiber media converter?
I-fiber media converter iyithuluzi lomkhiqizo elidingekayo lesistimu yokuxhumana ye-optical.Umsebenzi wayo oyinhloko iyunithi yokuguqula imidiya ye-Ethernet eshintshanisa amasignali kagesi asontekile ahamba ibanga elifushane kanye namasignali okubona amabanga amade.imikhiqizo ye-fiber media converter...Funda kabanzi -
Lapho uthenga iswishi, liyini izinga le-IP elifanele leswishi yemboni?
Izinga lokuvikela lokushintsha kwezimboni libhalwe yi-IEC (International Electrotechnical Association).Imelwe i-IP, futhi i-IP ibhekisela “kukuvikela ukungena.Ngakho-ke, lapho sithenga ukushintshwa kwezimboni, iliphi izinga le-IP elifanele lokushintshwa kwezimboni?Hlela izinto zikagesi...Funda kabanzi -
Uyini umehluko phakathi kweswishi ye-POE kanye neswishi evamile?
1. Ukuthembeka okuhlukile: Amaswishi e-POE amaswishi asekela ukunikezwa kwamandla kuzintambo zenethiwekhi.Uma kuqhathaniswa nokushintsha okujwayelekile, amatheminali athola amandla (njengama-AP, amakhamera edijithali, njll.) awadingi ukwenza izintambo zamandla, futhi athembeke kakhulu kuyo yonke inethiwekhi.2. Umsebenzi ohlukile...Funda kabanzi -
Yiziphi izinyathelo zokuphepha zokushintshwa kwezimboni ekusetshenzisweni kwansuku zonke?
Yiziphi izinyathelo zokuphepha zokushintshwa kwezimboni ekusetshenzisweni kwansuku zonke?(1) Ungalubeki ucingo endaweni eseduze namanzi noma emanzi;(2) Ungafaki lutho ekhebulani likagesi, uyigcine ikude;(3) Ukuze ugweme umlilo, ungalifindo noma ulisonge intambo;(4) Isixhumi samandla nezinye izinto zokusebenza...Funda kabanzi
