Kodi GBIC ndi chiyani?
GBIC ndi chidule cha Giga Bitrate Interface Converter, chomwe ndi chida cholumikizira chosinthira ma siginecha amagetsi a gigabit kukhala ma sign optical.GBIC imatha kupangidwira kusinthana kotentha.GBIC ndi chinthu chosinthika chomwe chimakwaniritsa miyezo yapadziko lonse lapansi.Ma switch a Gigabit opangidwa ndi mawonekedwe a GBIC amakhala gawo lalikulu pamsika pamsika chifukwa chakusinthana kosinthika.
Kodi SFP ndi chiyani?
SFP ndi chidule cha SMALL FORM PLUGGABLE, yomwe ingamveke mosavuta ngati ma modules a GBIC.SFP omwe ali ndi theka la kukula kwa ma modules a GBIC ndipo akhoza kukhazikitsidwa ndi ma doko oposa kawiri pa gulu lomwelo. Ntchito zina ya SFP module kwenikweni ndi yofanana ndi GBIC.Opanga ma switch ena amatcha SFP module miniaturized GBIC (MINI-GBIC) . Future optical modules ayenera kuthandizira plugging yotentha, zomwe zikutanthauza kuti akhoza kulumikizidwa kapena kuchotsedwa ku zipangizo popanda kudula. mphamvu.Chifukwa chakuti optical module ndi yotentha, oyang'anira maukonde akhoza kukweza ndi kukulitsa dongosolo popanda kutseka maukonde, osakhudzidwa pang'ono ndi ogwiritsa ntchito pa intaneti.Hotplug imathandizanso kukonza zonse ndikulola ogwiritsa ntchito mapeto kuti azitha kuyendetsa bwino ma transceiver modules. nthawi yomweyo, chifukwa cha ntchito kutentha kuwombola, gawo kumathandiza oyang'anira maukonde kukonzekera wonse kufala ndi kufala ndalama, kugwirizana mtunda, ndi topology onse maukonde.molingana ndi zofunikira za kukweza maukonde, popanda kutengera m'malo matabwa onse dongosolo.The ma modules kuwala amene amathandiza plugging otentha amenewa panopa GBIC ndi SFP, chifukwa kukula kwa SFP ndi SFF ndi ofanana, akhoza anaikamo mwachindunji mu bolodi la dera, lomwe limasunga malo ndi nthawi muzoyikapo, ndipo lili ndi ntchito zambiri.Choncho, chitukuko chake chamtsogolo chiyenera kuyembekezera ndipo chikhoza kuopseza msika wa SFF.
Kodi SFF ndi chiyani?
The SFF (Small Form Factor) compact optical module imagwiritsa ntchito ukadaulo wotsogola wotsogola komanso wophatikizira dera ndipo ndi theka la kukula kwa duplex SC (1X9) fiber optic transceiver module. onjezerani kachulukidwe ka doko ndikuchepetsa mtengo wadongosolo pa doko. Kuphatikiza apo, gawo laling'ono la phukusi la SFF limagwiritsa ntchito mawonekedwe a kt-rj ofanana ndi netiweki yawaya yamkuwa, yofanana ndi mawonekedwe wamba wamkuwa wamakompyuta, omwe amathandizira Kusintha kwa zida zomwe zilipo zamkuwa zokhala ndi zingwe zopangira ma netiweki kukhala apamwamba kwambiri optical fiber network kuti zikwaniritse kukula kwachangu kwa bandwidth ya netiweki.
Mtundu wa mawonekedwe a chipangizo cholumikizira netiweki
Chithunzi cha BNC
BNC mawonekedwe amatanthauza coaxial chingwe mawonekedwe.Mawonekedwe a BNC amagwiritsidwa ntchito polumikizira chingwe cha 75 euro coaxial, kupereka njira ziwiri zolandirira (RX) ndi kutumiza (TX), ndipo amagwiritsidwa ntchito polumikizira ma siginecha osagwirizana.
Optic fiber mawonekedwe
Fiber optic mawonekedwe ndi mawonekedwe a thupi omwe amagwiritsidwa ntchito kugwirizanitsa zingwe za fiber optic. Nthawi zambiri pali SC, ST, LC, FC ndi mitundu ina.Pa kugwirizana kwa 10base-f, cholumikizira nthawi zambiri chimakhala chamtundu wa ST, ndi mapeto ena a FC. imalumikizidwa ndi rack ya fiber optic.FC ndi chidule cha FerruleConnector.Kulimbitsa kwake kwakunja ndi manja achitsulo ndipo kumangirira ndi screw buckle.ST mawonekedwe nthawi zambiri amagwiritsidwa ntchito pa 10base-f.SC mawonekedwe nthawi zambiri amagwiritsidwa ntchito pa 100base-fx ndi GBIC.LC nthawi zambiri amagwiritsidwa ntchito pa SFP.
RJ - 45 mawonekedwe
Mawonekedwe a rj-45 ndi mawonekedwe a Efaneti omwe amagwiritsidwa ntchito kwambiri.Rj-45 ndi dzina lodziwika bwino la ma modular jacks kapena mapulagi okhala ndi malo 8 (mapini 8) monga momwe amafotokozera mulingo wapadziko lonse lapansi wolumikizira, wokhazikika ndi IEC(60)603-7.
RS - 232 mawonekedwe
Rs-232-c interface (yomwe imadziwikanso kuti EIA rs-232-c) ndiyo njira yolumikizirana yomwe imagwiritsidwa ntchito kwambiri. Idapangidwa mu 1970 ndi bungwe la American electronics industry Association (EIA) mogwirizana ndi ma bell system, opanga ma modemu ndi makompyuta. Dzina lake lonse ndi ”technical standard for serial binary data exchange interface pakati pa data terminal device (DTE) and data communication device (DCE)”. chizindikiro cha pini iliyonse ya cholumikizira ndi mlingo wa zizindikiro zosiyanasiyana.
RJ - 11 mawonekedwe
Mawonekedwe a RJ-11 ndi omwe timatcha mawonekedwe a mzere wa foni.RJ-11 ndi dzina lodziwika bwino la cholumikizira chopangidwa ndi Western Electric. .Kale ankadziwika kuti WExW, x apa akuimira "yogwira", kukhudzana kapena jekeseni singano.Mwachitsanzo, WE6W ili ndi zolumikizana zonse zisanu ndi chimodzi, Nambala 1 mpaka 6, mawonekedwe a WE4W AMAGWIRITSA NTCHITO ma pin 4, olumikizana awiri akunja (1 ndi 6) osagwiritsa ntchito, WE2W AMAGWIRITSA NTCHITO mapini awiri apakati (ie, mawonekedwe a mzere wa foni).
CWDM ndi DWDM
Ndi kukula kwachangu kwa intaneti ya IP data service, kufunikira kwa bandwidth yotumizira kukuchulukirachulukira.Ngakhale ukadaulo wa DWDM(dense wavelength division multiplexing) ndiyo njira yabwino kwambiri yothetsera kukula kwa bandwidth, ukadaulo wa CWDM (coarse wavelength division multiplexing) uli ndi zabwino kuposa DWDM mu mtengo wamakina, kusamalidwa ndi zina.
CWDM ndi DWDM onse ndi mateknoloji a wavelength division multiplexing, omwe angaphatikize kuwala kwa mafunde osiyanasiyana kukhala chingwe chimodzi chapakati ndikutumiza pamodzi.kulephera ndi zina.
Muyezo waposachedwa wa ITU wa CWDM ndi g.695, womwe umapereka njira za 18 wavelength ndi nthawi ya 20nm kuchokera ku 1271nm mpaka 1611nm.Poganizira mphamvu ya madzi pachimake wamba g.652 fiber, njira za 16 zimagwiritsidwa ntchito.Chifukwa cha malo akuluakulu a njira, olekanitsa mafunde ophatikizika ndi lasers ndi otsika mtengo kuposa zipangizo za DWDM.
Nthawi za njira za DWDM ndi 0.4nm, 0.8nm, 1.6nm ndi zina zosiyana monga zikufunikira, zomwe zimakhala zazing'ono ndipo zimafuna zipangizo zowonjezera zowongolera mafunde.Choncho, zipangizo zochokera ku teknoloji ya DWDM ndizokwera mtengo kuposa zomwe zimachokera ku teknoloji ya CWDM.
PIN photodiode ndi wosanjikiza wa zipangizo mopepuka doped n-mtundu, wotchedwa I(Intrinsic) wosanjikiza, pakati kwambiri doped p-mtundu ndi n-mtundu semiconductors.Pambuyo pakufalikira, wosanjikiza wochuluka kwambiri wa kutha amapangidwa, womwe ukhoza kupititsa patsogolo liwiro lake komanso kutembenuka mtima.APD ndi photodiode yokhala ndi phindu.Pamene kukhudzika kwa wolandila optical ndikwapamwamba, APD ndiyothandiza kukulitsa mtunda wopatsira dongosolo.