GBIC yog dab tsi?
GBIC yog lub npe luv ntawm Giga Bitrate Interface Converter, uas yog ib qho khoom siv sib txuas rau kev hloov gigabit hluav taws xob cov cim rau hauv cov teeb liab kho qhov muag.Lub GBIC tuaj yeem tsim los rau kub swapping.GBIC yog ib qho khoom sib hloov uas ua tau raws li cov qauv thoob ntiaj teb.Gigabit keyboards tsim nrog GBIC interface occupies ib qho kev lag luam loj hauv kev ua lag luam vim kev hloov pauv hloov tau yooj yim.
SFP yog dab tsi?
SFP yog cov ntawv luv ntawm ME FORM PLUGGABLE, uas tuaj yeem nkag siab yooj yim raws li kev hloov kho tshiab ntawm GBIC.SFP modules yog ib nrab ntawm GBIC modules thiab tuaj yeem teeb tsa nrog ntau dua ob npaug ntawm cov chaw nres nkoj ntawm tib lub vaj huam sib luag. ntawm SFP modules yeej ib txwm zoo ib yam li GBIC.Qee lub tuam txhab hloov pauv hu rau SFP module ib qho miniaturized GBIC (MINI-GBIC).Cov khoom siv kho qhov muag yav tom ntej yuav tsum txhawb nqa kub plugging, uas txhais tau hais tias lawv tuaj yeem txuas lossis txiav tawm ntawm cov khoom siv yam tsis muaj kev txiav tawm. power.Vim hais tias lub optical module yog kub-plugged, network managers yuav txawj tej yam ntxiv thiab txuas mus rau lub system yam tsis tau kaw lub network, nrog me ntsis cuam tshuam rau cov neeg siv online.Hotplug kuj simplifies zuag qhia tag nrho kev saib xyuas thiab tso cai rau cov neeg siv kawg los tswj lawv cov transceiver modules zoo dua. tib lub sijhawm, vim tias qhov kev sib pauv cua sov no, lub module tso cai rau cov thawj coj hauv lub network los npaj cov nqi sib kis thiab xa mus tag nrho, txuas qhov nrug, thiab tag nrho cov network topologies.Raws li cov kev xav tau ntawm kev hloov kho hauv lub network, tsis tas yuav hloov tag nrho cov txheej txheem boards.Cov khoom siv kho qhov muag uas txhawb nqa qhov kub plugging tam sim no muaj GBIC thiab SFP, vim qhov loj ntawm SFP thiab SFF yog hais txog tib yam, nws tuaj yeem ncaj qha mus rau hauv lub Circuit Court board, uas txuag chaw thiab sij hawm nyob rau hauv ntim, thiab muaj ntau yam kev siv.Yog li ntawd, nws txoj kev loj hlob yav tom ntej yog tsim nyog thiab tej zaum yuav txawm hem lub lag luam ntawm SFF.
SFF yog dab tsi?
SFF (Small Form Factor) compact optical module tau txais kev tshaj lij kho qhov muag thiab kev sib koom ua ke hauv tshuab hluav taws xob thiab tsuas yog ib nrab ntawm qhov loj ntawm cov duplex SC (1X9) fiber ntau optic transceiver module. nce cov kab chaw nres nkoj ceev thiab txo cov nqi ntawm ib qhov chaw nres nkoj. Tsis tas li ntawd, lub pob me me module ntawm SFF txais kt-rj interface zoo ib yam li tooj liab hlau network, qhov loj tib yam li cov tooj liab hlau sib txuas ntawm lub computer network, uas yog qhov zoo rau cov Kev hloov pauv ntawm cov khoom siv tooj liab-cable-raws li network uas twb muaj lawm mus rau ntau dua-tus nqi kho qhov muag fiber ntau network kom tau raws li kev loj hlob sai ntawm network bandwidth xav tau.
Network kev twb kev txuas ntaus ntawv interface hom
BNC interface
BNC interface hais txog coaxial cable interface.BNC interface yog siv rau 75 euro coaxial cable txuas, muab ob txoj hauv kev tau txais (RX) thiab xa (TX), thiab nws yog siv rau kev sib txuas ntawm cov cim tsis sib npaug.
Optical fiber ntau interface
Fiber optic interface yog lub cev interface siv los txuas fiber ntau optic cables.Muaj feem ntau yog SC, ST, LC, FC thiab lwm yam.Rau qhov kev sib txuas ntawm 10base-f, lub connector feem ntau yog hom ST, thiab lwm yam kawg ntawm FC. yog txuas nrog fiber ntau optic cable khib.FC yog lub npe ntawm FerruleConnector.Nws cov khoom siv sab nraud yog lub tes tsho hlau thiab fastening yog ntsia hlau buckle.ST interface feem ntau yog siv rau 10base-f.SC interface feem ntau yog siv rau 100base-fx thiab GBIC.LC feem ntau yog siv rau SFP.
RJ-45 interface
Rj-45 interface yog qhov feem ntau siv Ethernet interface.Rj-45 yog ib lub npe nrov rau modular jacks lossis plugs nrog 8 txoj haujlwm (8 tus pins) raws li tau hais los ntawm cov txheej txheem txuas thoob ntiaj teb, tsim los ntawm IEC (60) 603-7.
RS-232 interface
Rs-232-c interface (tseem hu ua EIA rs-232-c) yog qhov feem ntau siv serial kev sib txuas lus interface. Terminal manufacturers rau serial kev sib txuas lus qauv.Nws lub npe tag nrho yog "tus qauv txheej txheem rau serial binary ntaub ntawv pauv interface ntawm cov ntaub ntawv davhlau ya nyob twg li (DTE) thiab cov ntaub ntawv kev sib txuas lus pab kiag li lawm (DCE)". lub teeb liab cov ntsiab lus ntawm txhua tus pin ntawm lub connector thiab qib ntawm ntau yam teeb liab.
RJ-11 interface
RJ-11 interface yog qhov peb hu xov tooj kab interface.RJ-11 yog lub npe generic rau lub connector tsim los ntawm Western Electric.Nws cov duab yog txhais raws li ib tug 6-pin connector.Nws cov duab yog txhais raws li ib tug 6-pin connector. .Yav tas los hu ua WExW, qhov x ntawm no sawv cev rau "ua haujlwm", tiv tauj lossis koob txhaj tshuaj.Piv txwv li, WE6W muaj tag nrho rau rau tus neeg sib cuag, Tus lej 1 txog 6, WE4W interface tsuas yog siv 4 tus pins, ob sab sab nraud (1 thiab 6) tsis txhob siv, WE2W tsuas yog siv qhov nruab nrab ob tus pins (piv txwv li, xov tooj interface).
CWDM thiab DWDM
Nrog kev loj hlob sai ntawm Internet IP cov ntaub ntawv kev pabcuam, qhov kev thov rau kev sib kis kab bandwidth yog nce.Txawm tias DWDM (dense wavelength division multiplexing) thev naus laus zis yog txoj hauv kev zoo tshaj plaws los daws cov kab bandwidth expansion, CWDM (coarse wavelength division multiplexing) thev naus laus zis muaj qhov zoo tshaj. DWDM nyob rau hauv qhov system nqi, kev ruaj ntseg thiab lwm yam.
CWDM thiab DWDM yog ob qho tib si wavelength division multiplexing technologies, uas tuaj yeem ua ke lub teeb ntawm qhov sib txawv wavelengths rau hauv ib qho tseem ceeb fiber ntau thiab xa lawv ua ke.ainability thiab lwm yam.
Qhov tseeb ITU tus qauv ntawm CWDM yog g.695, uas muab 18 wavelength raws nrog ib ntus ntawm 20nm los ntawm 1271nm txog 1611nm.Xav txog kev cuam tshuam ntawm dej ncov ntawm qhov qub g.652 fiber ntau, 16 channels feem ntau yog siv.Vim qhov sib txawv ntawm cov channel loj, cov yoj sib xyaw ua ke thiab cov lasers pheej yig dua li DWDM.
DWDM channel ncua sij hawm yog 0.4nm, 0.8nm, 1.6nm thiab lwm yam sib txawv raws li qhov yuav tsum tau, uas yog me me thiab yuav tsum tau ntxiv wavelength tswj li.Yog li, cov khoom siv raws li DWDM thev naus laus zis yog kim dua li cov khoom siv raws li CWDM thev naus laus zis.
PIN photodiode yog ib txheej ntawm maj mam doped n-hom cov ntaub ntawv, hu ua I (Intrinsic) txheej, ntawm heev doped p-hom thiab n-hom semiconductors.Vim nws yog maj mam doped, lub electron concentration yog tsawg heev.Tom qab diffusion, txheej txheej depletion dav heev yog tsim, uas tuaj yeem txhim kho nws cov lus teb ceev thiab hloov pauv tau zoo.APD yog photodiode nrog nce.Thaum lub rhiab heev ntawm optical receiver yog siab dua, APD yuav pab tau kom ncua qhov kev ncua deb ntawm lub system.