Chii chinonzi GBIC?
GBIC chidimburidzo cheGiga Bitrate Interface Converter, chinova chigadziriso chekushandura masaini egigabit emagetsi kuita zviratidzo zvemaziso.Iyo GBIC inogona kugadzirwa kuti ishandure inopisa.GBIC chigadzirwa chinoshandura chinoenderana nemitemo yenyika.Gigabit switch yakagadzirwa neGBIC interface inogara. chikamu chikuru chemusika mumusika nekuda kwekuchinjika kuchinjika.
Chii chinonzi SFP?
SFP chidimbu cheSMALL FORM PLUGGABLE, inogona kungonzwisiswa seshanduro yakavandudzwa yeGBIC.SFP modules ihafu yehukuru hweGBIC modules uye inogona kugadzirwa nekanopfuura kaviri nhamba yezviteshi pane imwechete panel.Mamwe mabasa. yeSFP module inonyanya kufanana neGBIC.Vamwe vagadziri vekushandura vanodana SFP module miniaturized GBIC (MINI-GBIC) .Future optical modules inofanira kutsigira kupisa plugging, izvo zvinoreva kuti inogona kubatanidzwa kana kubviswa kubva kune zvigadzirwa pasina kubviswa. simba.Nekuda kwekuti iyo optical module inopisa-yakavharwa, maneja etiweki anogona kusimudzira uye kuwedzera sisitimu pasina kudzima network, ine zvishoma zvinokanganisa vashandisi vepamhepo.Hotplug zvakare inorerutsa kuchengetedza kwese uye inobvumira vashandisi vekupedzisira kuti vatarise zvirinani transceiver modules.At the panguva imwe chete, nekuda kwekuita uku kwekuchinjana kupisa, module inogonesa mamaneja etiweki kuronga iyo yese yekufambisa uye mutengo wekutapurirana, nhanho dzekubatanidza, uye ese network topologies.maererano nezvinodiwa zvekuvandudza network, pasina kutsiva ese mabhodhi ehurongwa.Mamodule optical anotsigira iyi inopisa plugging parizvino ine GBIC neSFP, nekuti saizi yeSFP neSFF inenge yakafanana, inogona kuiswa zvakananga mu bhodhi redunhu, iyo inochengetedza nzvimbo uye nguva mukurongedza, uye ine huwandu hwakawanda hwemaapplication.Naizvozvo, kukura kwayo kweramangwana kunofanirwa kutarisirwa uye kungatotyisidzira musika weSFF.
Chii chinonzi SFF?
Iyo SFF (Small Form Factor) compact optical module inotora advanced precision optical uye yedunhu yekubatanidza tekinoroji uye inongova hafu yehukuru hweyakajairwa duplex SC (1X9) fiber optic transceiver module. kuwedzera mutsetse wechiteshi uye kuderedza mutengo wehurongwa pachiteshi. Pamusoro pezvo, iyo diki package module yeSFF inotora kt-rj interface yakafanana neyemhangura waya network, saizi yakafanana neyakajairika copper wire interface yekombuta network, iyo inobatsira kune Shanduko yemhangura-tambo-yakavakirwa network zvishandiso kune yakakwirira-chiyero optical fiber network kusangana nekukura nekukurumidza kwetiweki bandwidth inoda.
Network yekubatanidza mudziyo interface mhando
BNC interface
BNC interface inoreva coaxial tambo interface.BNC interface inoshandiswa 75 euro coaxial tambo yekubatanidza, ichipa maviri chiteshi chekugamuchira (RX) uye kutumira (TX), uye inoshandiswa kubatanidza masaini asina kuenzana.
Optical fiber interface
Fiber optic interface ndiyo inoshandiswa kubatanidza fiber optic cables.Iko kazhinji kune SC, ST, LC, FC uye mamwe marudzi.Kune 10base-f yekubatanidza, chibatanidza chinowanzova chemhando ST, uye imwe mugumo weFC. yakabatana nefiber optic cable rack.FC ndiyo chidimbu cheFerruleConnector.Kusimbisa kwayo kwekunze isimbi sleeve uye kusungirira is screw buckle.ST interface inowanzoshandiswa kune 10base-f.SC interface inowanzoshandiswa 100base-fx uye GBIC.LC inowanzoshandiswa kuSFP.
RJ - 45 interface
Iyo rj-45 interface ndiyo inonyanya kushandiswa yeEthernet interface.Rj-45 izita rinowanzozivikanwa re modular jacks kana maplug ane 8 positions (8 pin) sekutsanangurwa kwazvinoitwa neinternational connector standard, yakamisikidzwa neIEC(60)603-7.
RS - 232 interface
Rs-232-c interface (inozivikanwawo seEIA rs-232-c) ndiyo inonyanya kushandiswa serial communication interface. Yakagadzirwa muna 1970 neAmerican electronics industry industry (EIA) mukubatana nemabhero masisitimu, vagadziri vemodemu nemakombuta. materminal agadziri ezviyero zvekutaurirana.Zita rayo rakazara ”technical standard for serial binary data exchange interface between data terminal devices (DTE) nedata communication device (DCE)”.Chiyero chinotsanangudza kushandiswa kwe25-pin DB25 connector, zvichitsanangura chiratidzo chemukati chepini yega yega yekubatanidza uye chiyero chezviratidzo zvakasiyana.
RJ - 11 interface
RJ-11 interface ndiyo yatinodaidza kuti mutsara wefoni.RJ-11 izita rezita rekubatanidza rakagadzirwa neWestern Electric.Chimiro chayo chinotsanangurwa se6-pin connector.Chimiro chayo chinotsanangurwa se 6-pin connector. .Yaimbozivikanwa seWExW, x pano inomirira "kushanda", kubata kana jekiseni retsono.Semuyenzaniso, WE6W ine macontacts ese matanhatu, Nhamba 1 kusvika 6, WE4W interface chete USES 4 pini, ekunze maviri anobata (1 uye 6) usashandise, WE2W chete INOSHANDISA mapini maviri epakati (kureva, mutsara wefoni).
CWDM uye DWDM
Nekukurumidza kukura kweInternet IP data sevhisi, kudiwa kwekufambisa mutsara bandwidth kuri kuwedzera.Kunyangwe DWDM(dense wavelength division multiplexing) tekinoroji ndiyo inonyanya kushanda nzira yekugadzirisa kuwedzera kwemutsara bandwidth, CWDM (coarse wavelength division multiplexing) tekinoroji ine zvakanakira kupfuura. DWDM mumutengo wesystem, kuchengetedza uye zvimwe zvinhu.
CWDM neDWDM zvose zviri zviviri zvewavelength division multiplexing technologies, iyo inogona kusanganisa chiedza chewavelengths yakasiyana-siyana mufiber imwe yepakati uye kuaendesa pamwe chete.kusakwanisa uye zvimwe zvinhu.
Iyo yazvino ITU standard yeCWDM ndeye g.695, iyo inopa 18 wavelength migero ine nguva ye20nm kubva 1271nm kusvika 1611nm.Tichifunga nezve pesvedzero yemvura yepamusoro peyakajairika g.652 fiber, 16 chiteshi chinowanzo shandiswa.Nekuda kweiyo yakakura chiteshi spacing, iyo yakasanganiswa wave separators uye lasers inochipa kupfuura DWDM zvishandiso.
DWDM channel intervals ndeye 0.4nm, 0.8nm, 1.6nm nedzimwe nguva dzakasiyana sezvinodiwa, izvo zviduku uye zvinoda mamwe mawavelength control madivayiri.Naizvozvo, zvishandiso zvinoenderana neDWDM tekinoroji inodhura kupfuura iyo yakavakirwa paCWDM tekinoroji.
PIN photodiode is a layer of lightly doped n-type materials, inozivikanwa seI(Intrinsic) layer, pakati pe-doped p-type uye n-type semiconductors.Nekuda kwekuti yakaderedzwa zvishoma, kuenzanisa kwe electron kwakaderera zvikuru.Mushure mekupararira, chidimbu chakakura kwazvo chekudzikisa chinoumbwa, chinogona kuvandudza kukurumidza kwekupindura uye kutendeuka kushanda zvakanaka.APD iphotodiode ine pfuma.Kana iyo senitivity yeOptical receiver yakakwira, APD inobatsira kuwedzera kureba kwekutapurirana kwehurongwa.