DSFP Optical Module Ntim rau 5G Fronthaul
Dec 06, 2025|
DSFP yog dab tsi?
Cias muab, nws txhais tau hais tias nyob rau hauv tib yamSFP28 ntim optical module, ob zaug qhov ceev tuaj yeem ua tiav:
| Cov ntawv luv | Lus Askiv Lub Npe | Channel Description |
|---|---|---|
| SFP | Daim ntawv me-factor Pluggable | Ib channel (1 × TX + RX) |
| DSFP | Dual Small Form -factor Pluggable | Ob channel (2 × TX + RX) |
Ib lub hom phiaj ntawm MSA raws tu qauv no yog kom ua tiav ob npaug ntawm qhov ceev rau 5G fronthaul hauv tib pob SFP28.
Txawm hais tias DSFP thiab SFP muaj cov qauv zoo ib yam, lawv txawv ntawm cov ntiv tes kub.
| Hom | Lus Askiv Lub Npe | Number of Electrical Pins (ntawm lub connector) |
|---|---|---|
| SFP | Daim ntawv me-factor Pluggable | 20 |
| DSFP | Dual Small Form -factor Pluggable | 22 |
DSFP ntxiv ob tus pin ntxiv rau tus thawj SFP tus 20 tus pins.
DSFP PCB resin yog pob tshab, nrog rau 21st thiab 22nd kub ntiv tes cim rau hauv qhov tsaus ntuj.
Sab hla-sectional saib ntawm cov ntiv tes kub qhia ob khub ntawm cov cim sib txawv, tso cai rau ib qho khoom siv kho qhov muag xa mus thiab tau txais ob lub teeb liab 25G hauv 5G fronthaul.
Ua kom tiav 22 tus pin txhais:
Hais txog 5G fronthaul Qhib-WDM semi- nquag thiab xim xim modules
Hauv 5G, fronthaul hais txog qhov kev ncua deb ntawm DU mus rau AAU. Feem ntau, qhov kev ncua deb ntawm optical module hauv C-RAN fronthaul nkag txoj kev yog 5-10km.
Feem ntau, ib qho DU txuas rau 6-10 AAUs (saib daim duab hauv qab).
Txhua lub hauv paus chaw nres tsheb yuav tsum kav hlau txais xov kom npog 360 degree. Qhov kev teeb tsa yooj yim tshaj plaws yog 3 lub kav hlau txais xov ib AAU, nrog rau txhua tus kav hlau txais xov lub luag haujlwm rau 120℃sector. Yog li ntawd, txhua AAU xav tau 3 khub ntawm optical modules rau cov teeb liab kis tau tus mob.
3 khub ntawm modules, 3 teeb ntawm transceiver modules.
Yog tias siv lub teeb grey, uas yog, ib qho module nrog tib lub wavelength, ces muaj 6 fibers kho qhov muag los ntawm lub node mus rau lub kav hlau txais xov, thiab tib tus naj npawb ntawm optical fibers ntawm node mus rau DU.
Qhov no yog cov lus dab neeg 5G fronthaul, fiber optic ncaj tsav daws teeb meem.
Yog tias kev siv cov fiber ntau optic cables nyuaj, txo cov fibers thiab ua kom cov complexity ntawm optical modules yog ib qho ua tau.
Piv txwv li, BiDi (ib zaug - kab, bidirectional), nrog ib khub ntawm modules sib koom ib fiber ntau rau kev sib kis thiab txais tos, siv ob lub wavelengths rau kev sib txawv.
Qhov no txuag ib nrab ntawm cov khoom siv fiber ntau optic.
Tuam Tshoj txawb lub tswv yim xim -coded optical fiber tov yuav txuag tau fiber ntau optic cable, tab sis kev lag luam tawm -tawm yog tias qhov kho qhov muag modules yuav nyuaj dua rau kev siv.
Nws koom nrog ib qho chaw nres tsheb, peb khub ntawm cov modules, siv rau 6 wavelengths multiplexed, thiab xa cov ntaub ntawv los ntawm ib qho fiber ntau optical.
Qhov no 6-wavelength multiplexing txoj kev siv lub active node thiab nquag wavelength division multiplexing (WDM) ntaus ntawv ntawm DU input kawg; ntawm lub hauv paus chaw nres tsheb sab, nws siv passive AWG multiplexing / demultiplexing los muab cov kis tau tus mob thiab txais tos ntawm peb modules, rau tag nrho ntawm rau lub wavelengths.
Cov xim pleev xim rau lub ntsej muag lub ntsej muag no siv ib qho ntawm lub ntsej muag thiab ib qho ntawm qhov tsis muaj zog, uas Tuam Tshoj txawb hu ua "semi-active."
Peb txoj kev nkag mus no - tsav ncaj qha, BiDi, thiab ib nrab - lub teeb xim muaj zog- muaj qhov sib txawv rau cov khoom siv kho qhov muag.
Xim lub teeb modules xav tau rau lub wavelengths, nrog rau qhov qis -dispersion band yog 0 band. Nyob rau hauv lub mature 100G (4 wavelengths × 25G) kev lag luam saw ntawm cov chaw zov me nyuam, 25G lasers tuaj yeem pom hauv 1271, 1291, 1311, thiab 13314 bands.
Raws li rau lwm ob lub wavelengths, yuav ua li cas xaiv lawv yog tseem nyob rau hauv kev sib tham ntawm ob peb cov khoom manufacturers.
Ib qho kev tawm tswv yim yog ntxiv ob lub wavelength tshiab.
Lwm txoj hauv kev yog ntxig cov wavelengths, luv luv 20nm wavelength ncua sij hawm mus rau 10mm thiab nthuav nws mus rau 12 wavelengths (Kuang Guohua ntxiv rau xyoo 2021, thiab cov tswv yim ntawm kev ntxiv ob lub wavelength tshiab tom qab tau xaiv, thiab cov tswv yim ntawm kev ntxig wavelengths tsis tau siv lawm).