Dab tsi yog ob qhov tseem ceeb tshaj ntawm cov kis hluav taws xob fiber ntau lub cev?
Tx lub zog thiab Rx lub zog ntawm ib qho Fiber Transceiver.
Lub hwj huam kho qhov muag Tx yog lub teeb liab qib tawm ntawm qhov cuab yeej ntawd thiab nws yuav tsum nyob hauv qhov kev xa hluav taws xob ntau. Lub zog hluav taws xob Rx yog lub teeb liab theem nkag tau txais los ntawm lub cuab yeej deb kawg thiab nws yuav tsum poob hauv qhov tau txais ntau zog.
Tib hom fiber ntau qhov txuas transceiver yog tsim los rau cov ntaub ntawv ntev kis thiab multimode fiber ntau optic transceiver yog rau cov kev sib txuas luv luv.
Yuav ua li cas los suav qhov kev ncua deb uas lub fiber ntau qhov muag xa tawm tuaj yeem pab txhawb nyob rau qee lub sijhawm? Dab tsi yog qhov tseem ceeb rau qhov kev xa mus deb? Koj puas muaj lub tswv yim ntawm Tx fais fab (kis) thiab Rx zog (tau txais) theem ntawm fiber ntau qhov chaw kis kab ke? Kab lus no yuav qhia koj los ntawm qhia txog 10GBASE-SR SFP + thiab 10GBASE-LR SFP qauv.
10GBASE-SR SFP + yog multimode fiber transceiver thiab tuaj yeem txhawb qhov kev ncua deb ntawm 300 m dhau OM3 multimode fiber ntau ua rau.
Thaum 10GBASE-LR SFP module yog tib hom kev tsim tawm thiab tuaj yeem khiav lub network nyob deb li 10 km dhau ib hom fiber ntau thaj ua.
Ua ntej yuav khoom 10GBASE SFP + module, koj yuav tsum ua tib zoo nyeem cov lus qhia yam khoom. Cov npe hauv qab no yog cov lus qhia txog cov khoom txog 10GBASE-SR SFP + thiab 10GBASE-LR SFP module los ntawm HTF. Raws li qhia hauv qab no, Tx zog ntawm no Cisco tshaj 10GBASE-SR SFP + yog nruab nrab ntawm -7.3 dBm thiab -1 dBm. Qhov ntau tau txais lub zog yog qis dua -11.1 dBm. Kev xav txog Cisco tshaj 10GBASE-LR SFP module, Tx zog yog los ntawm -8.2 txog 0.5 dBm thiab qhov siab tshaj plaws Rx zog yog -14.4 dBm.
Tx Zog thiab Rx Lub Hwj Chim ntawm 10GBASE-SR SFP +
Qauv hom | SFP-10G-SR | Lub Hom | HTF |
Encapsulation | SFP + | Cov Ntaub Ntawv Ntsuas | 11.3Gb / s |
Wavelength | 850nm | Mus cuag | 300m |
Sib cuam tshuam | Duplex LC | LD | VCSEL |
Cable Hom | MMF | DDM Pab Txhawb | Yog lawm |
Tx hwj chim | -7.3 ~ -1dBm | Rx Sens | -11.1dBm |
Ntsig Kub | 0~70°C (32~158°F) | Cov khoom pov thawj zoo | 3 xyoos |
Tx Hwjchim thiab Rx Lub Hwj Chim ntawm 10GBASE-LR SFP + Module
Qauv hom | SFP-10G-LR | Lub Hom | HTF |
Encapsulation | SFP + | Cov Ntaub Ntawv Ntsuas | 11.3Gb / s |
Wavelength | 1310nm | Mus cuag | 10km |
Sib cuam tshuam | Duplex LC | LD | DFB |
Cable Hom | SMF | DDM Pab Txhawb | Yog lawm |
Tx hwj chim | -8.2 ~ -0.5dBm | Rx Sens | -14.4dBm |
Ntsig Kub | 0~70°C (32~158°F) | Zoo tau lees tias | 3 xyoos |
Tx Hws Lub Zog thiab Rx Power VS Optical Zog Nyiaj Siv
Txhawm rau txheeb xyuas qhov kev ncua deb ntawm lub fiber ntau qhov chaw xa khoom, peb yuav tsum paub nws cov nyiaj siv fais fab kho qhov muag (ntau tshaj qhov pom zoo poob).
Optical zog pob nyiaj siv=Tx zog - Rx zog
Yog li ntawd, raws li lub zog Tx thiab lub zog Rx, peb tuaj yeem suav qhov siab tshaj plaws tau tso cai poob ntawm 10GBASE-SR SFP + thiab 10GBASE-LR SFP module.
Kev Siv Nyiaj Siv Hluav Taws Xob ntawm 10GBASE-SR SFP +
Min Txiab Zog=-7.3 dBm
Max Rx Fais Fab=-11.1 dBm
Optical zog siv nyiaj (siab tshaj plaws tau poob)=(-7.3 dBm) - (-11.1 dBm)=3.4 dBm
Kev Siv Nyiaj Siv Hluav Taws Xob ntawm 10GBASE-LR SFP + Module
Min Txiab Zog=-8.2dBm
Max Rx Fais Fab=-14.4 dBm
Optical zog siv nyiaj (siab kawg tso cai poob)=(-8.2 dBm) - (-14.4 dBm)=6.2 dBm
Tx fais fab thiab Rx fais fab VS Hloov Kev Deb Deb
Tsuas yog kho qhov muag nyiaj siv fais fab, peb yuav tsum txiav txim siab lwm yam nrog rau qhov ntev txuas, fiber kho qhov muag sib txuas ua ke, fusion splicing cov ntsiab lus thiab qee qhov tsis tuaj yeem ua kom muaj fiber ntau los ntawm fiber ntau ua rau khoov (feem ntau attenuation yog li 3 dB). Qhov poob ntawm txhua tus txuas yog 0.6 dB thiab 0.1 dB ntawm txhua qhov fusion splicing point. Cia li xav tias peb siv 10GBASE-LR SFP + module tsim kom muaj cov vev xaib txuas rau 2 txuas, 4 fusion splicing cov ntsiab lus. Qhov qauv no cuam tshuam nrog LC ib hom fiber ntau thaj qaum. Yog tias tib hom fiber ntau cable muaj qhov ntev ntev ntawm 1310 nm, qhov poob hluav taws xob yog kwv yees 0.35 dB ib mais.
Qhov tsis zoo tshaj plaws kho qhov muag ploj=Kev Siv Nyiaj Txiag - Tag Nrho Cov Khoos Phom Qhab poob qis=6.2 dB - 1.2dB (2 × 0.6 dB) - 0.4dB (0.1 × 4) - 3dB (qhov muaj txiaj ntsig kev nyab xeeb)=1.6 dB
Qhov teeb meem txhaum cai tshaj== {Cov ntaub ntawv phem tshaj OPB, hauv dB} / [Cable poob, hauv dB / km]=1.6dB / 0.35dB / km
Yog li peb tuaj yeem tau 10GBASE-LR SFP + module tuaj yeem pab txhawb tsawg kawg 4,57 km ntawm lub sijhawm no. Cov ntaub ntawv xa mus deb yog feem ntau pawg los ntawm kho qhov muag nyiaj siv fais fab thiab fiber cable poob. Los ntawm cov ntsiab lus saum toj no, qhov khoos phis tawm fais fab ntawm 10GBASE-SR SFP + me dua qhov ntawm 10GBASE-LR SFP + module. Qhov ntau ntawm cov fais fab nyiaj optical, ntxiv cov fiber ntau transceiver tuaj yeem txhawb. Dab tsi ntxiv, xaim hluav taws xob poob ntawm multimode fiber ntau cable yog qhov loj dua li ntawm ib hom fiber ntau cable. Pom tseeb 10GBASE-LR SFP + module tuaj yeem txhawb nqa qhov txuas txuas ntev dua li 10GBASE-SR SFP +.
Network tsev
Nco tseg: Kev siv nyiaj siv fais fab kev kho qhov muag raws li kev theoretical laij, thiab tsuas yog rau siv xwb. Qhov kev xa mus deb yuav tsum tau muab xam raws li peev nyiaj ntawm fiber transceiver module kuaj ntawm lub hloov thiab qee qhov ua kom pom tseeb.
Xaus
Tx fais fab thiab Rx zog theem ntawm transceiver yog qhov tseem ceeb ntawm qhov kev sib kis tau. Qhov ntau ntawm cov nyiaj siv kho qhov muag, qhov zoo dua transceiver. Ua ntej yuav khoom thauj khoom siv transceiver, koj yuav tsum zoo dua lub zog kho qhov muag siv nyiaj raws li transceiver module cov ntsiab lus.
Yog tias koj xav paub ntau ntxiv, Tos Txais hu rau Ivy los ntawm HTF:ivy@htfuture.com +86 18123672396 www.htfwdm.com
