Kev Paub Txog ntawm CWDM OADM
CWDM OADM (Coarse Wavelength Division Multiplexing Optical Add / Drop Module) yog cov khoom siv passive los txuas rau multiplex / demultiplex lossis ntxiv / tso cov wavelengths los ntawm cov xov paj ntau rau ib qho fiber ntau. Los ntawm kev siv CWDM thev naus laus zis, ib qho kev tso tawm rau tus kheej yuav tau xaiv ntxiv lossis tso tawm los ntawm cov xov hluav taws xob thaum tso cai hla cov qhua tuaj saib lub vev xaib txuas ntxiv mus tsis muaj kev cuam tshuam hla lub npav lossis lub nplhaib.
Lub Nta Tseem Ceeb:
Ntxiv / poob rau ITU-T G.695- thiab G.694.2-tshaj CWDM kev sib txuas mus rau cov hluav taws xob khub;
Tsim rau kev siv sab nrauv-tsob ntoo fiber ntau splice lo;
Hloov tau mus rau yim txoj hauv kev;
Muab cov qis-poob hla-dhau rau CWDM kev tso tawm;
Thermally ruaj khov passive optics tsis muaj lub zog hluav taws xob.
CWDM OADM splice pob yog nyob rau hauv cov menyuam ntawm kev yoog raws, tsis tshua muaj txiaj ntsig uas nthuav dav tus nqi ntawm cov khoom siv tam sim no. CWDM OADM bidirectional splice packs muab ob qho tib si rau sab hnub tuaj thiab sab hnub poob ntxiv / poob haujlwm thiab yog li tau muab nkag rau hauv cov chaw cog ntoo sab nrauv uas twb muaj lawm. Lawv muaj chav txaus rau cov tswj fiber ntau thiab splice cov tuav. OADM cov khoom txuas cuam tshuam rau cov xim sib txuam CWDM GBICs ncig cov khoom siv sab. Txhua qhov ntawm cov modules yog cov loj tib yam.
Cov Qauv
OADM muaj peb theem: qhov kho qhov muag demultiplexer, tus kho qhov muag multiplexer, thiab nrog duav thiab tsis siv cov txheej txheem rau rov kho txoj hauv kev uas cuam tshuam rau cov kho qhov muag demultiplexer, cov optical multiplexer nrog rau cov npe ntawm cov chaw nres nkoj rau ntxiv thiab xa cov cim. Tus kho qhov muag demultiplexer sib cais wavelengths hauv cov tswv yim fiber ntau rau cov chaw nres nkoj. Tus kho qhov muag sib txuam ntawm cov xim sib txuas ntawm cov xim sib txuas uas tau txuas ntxiv los ntawm demultipexer cov chaw nres nkoj nrog cov uas nyob hauv cov chaw nres nkoj ntxiv, mus rau ib qho tso zis fiber ntau.
Muaj plaub yam CWDM OADMs:
Dual Ib Leeg-Channel OADMs (CWDM-MUX-AD-xxxx? AAllows koj mus twv yuav raug hu ntxiv / tso ob txoj kab ntawm tib lub yoj yob rau hauv ob qho kev qhia ntawm koj lub ntsej muag kho qhov muag. ob lub network nrog rau CWDM GBIC kev sib txuas.Qhov yim ntawm qhov OADM no muaj, ib qho rau txhua tus thiab txhua lub yoj yoj txuam nrog.
4 channel CWDM OADM (CWDM-MUX-4 =)? AK rau koj ntxiv / tso plaub txoj kab (nrog cov wavelengths sib txawv) rau hauv ib qho kev coj ntawm lub nplhaib kho qhov muag. Lwm qhov yoj yoj yoj dhau ntawm OADM. Dual fiber yuav siv tau rau lub network nrog rau kev sib txuas ntawm GBIC. Cov plaub nthwv dej yuav yog 1470 nm, 1510 nm, 1550 nm, thiab 1590 nm.
8-Channel Multiplexer / Demultiplexer (CWDM-MUX-8 =)? AAllows tias koj multiplex / demultiplex yim sib cais ua ke rau hauv ib txheej ntawm ob lub fiber. Dual fiber yuav siv tau rau ob qho tib si lub network thiab kuj txuas rau GBIC kev sib txuas. Muaj yim lub sijhawm siv yoj yoj yog 1470 nm, 1490 nm, 1510 nm, 15300 nm, 1550 nm, 1570 nm, 1590 nm, thiab 1610 nm.
Ib Leeg-Fiber 4-Channel Multiplexer / Demultiplexer (CWDM-MUX-4-SFx =)? aA rau koj mus rau multiplex / demultiplex plaub cais kev sib cais rau hauv ib qho ntawm fiber ntau. Dual fiber ntau siv rau kev sib txuas rau GBICs thiab ib qho fiber ntau yog siv rau qhov kev sib txuas ntawm lub network. Ob qho qauv (CWDM-MUX-4-SF1 = thiab CWDM-MUX-4-SF2 =) yuav tsum siv ua ke los tsim plaub-channel ib leeg-fiber-taw-rau-kis sib txuas.
CWDM OADM tsuas yog ib qho ntawm CWDM passive optical system, lwm tus yog CWDM MUX / DEMUX thiab CWDM GBIC. Lawv muab kev sib txuas lus kho qhov muag rau cov kev sib txuas lus ceev cov ntaub ntawv rau kev sib txuas ntawm thaj chaw hauv nroog (MANs) ntau dua kab sib chaws ntawm yim CWDM optical wavelengths hauv lub nplhaib lossis cov taw tes-rau-taw kev teeb tsa.
