Cov Kev Tshaj Tawm SFP Transceiver thiab Hom
Tus SFP transceiver tau tuav lub Rooj Tsav Daim Ntawv Teev Npe uas koom nrog SFP hluav taws xob hauv qhov kev pabcuam.
Ib tug "chaw nres tsheb transceiver chaw nres tsheb" (BTS) yog ib qho tseem ceeb me me uas siv xov xwm sib pauv siv hluav taws xob tawm los ntawm kev tawm tsam (UE) thiab lub network. UEs yog siv xws li cov xov tooj tiv thaiv (handsets), Wireless hom voj vev xaib, cov computers nrog wireless Internet txuas.
Lub network yuav yog qhov ntawm cov ntaub ntawv xov xwm sib pauv ntawm cov cuab yeej thiab cov qauv xws li GSM, CDMA, wireless haiv neeg lub voj voog, WIFI, WiMAX qhov sib txawv hauv thaj tsam network (WAN).
BTS yog qhov tseem ceeb hais kom zoo li qhov chaw tshaj tawm hauv xov tooj (RBS), point B (hauv 3G tes hauj lwm), qhov tseeb, qhov chaw zov me nyuam (BS). Rau kev sib tham ntawm 3GPP Ntev TERM Evolution qhov luv luv EnodeB rau tsim point B yog feem ntau thov.
Txawm hais tias qhov qhia tawm BTS kuj tsim nyog rau txhua yam ntawm cov ntaub ntawv sib pauv wireless, nws yog feem ntau muaj feem xyuam nrog portable cov ntaub ntawv txauv kev siv cov cuab yeej thiab cov qauv xws li GSM thiab CDMA. Hauv no ua raws li, ib daim BTS yog ib qho ntawm qhov chaw zov me nyuam tus kheej qhov system hauv qhov system loj (BSS) kev tsim kho rau kev tswj xyuas. Nws yuav zoo li muaj outfits rau encrypting thiab decrypting cov ntaub ntawv sib pauv, ntau filtrating siv (qhab mus lim), etcetera. Cov kav hlau txais yuav zoo li qhov pom ntawm BTS nyob rau hauv kev xav ntau vim lawv qee qhov txawv txawv thiab qhov chaw sib txawv ntawm cov xov tooj ntawm tes (hauv qhov teeb meem ntawm qhov chaw ntawm qhov chaw zov me nyuam). Ib BTS yog tswj hwm los ntawm ib lub chaw zov me nyuam qhov chaw zov me nyuam los ntawm txoj kev ntawm qhov chaw zov me nyuam cov lus txib lub hom phiaj (BCF). Lub BCF raug tua xws li ib qho kev cais tshwj xeeb txawm tias muaj kev sib xyaws ua ke hauv TRX hauv qhov chaw nres tsheb. Lub BCF xa ib qho kev sib txuas thiab kev ua kom tiav (OM) mus rau qhov kev sib txuas lus hauv network (NMS), thiab ua haujlwm khiav haujlwm ntawm txhua tus TRX, thiab zoo li kev tswj hwm thiab kev sib sau ua ke. Txoj kev tsim kho thiab lub hom phiaj ntawm BTS yuav tsis zoo ib yam li cov wireless technologies.
RF module - Transceiver modules
Ib qho kev sib tshooj RF Transceiver muaj xws li ib tug neeg xa thiab txais nyiaj. Tus khiav yog tus tsim tau tsim ntawm Half-duplex ua hauj lwm, tab sis Tag nrho ob lub thev ob qho tib si yog siv tau, characteristically ntawm ib qho kev tsim tawm yuav cia siab rau qhov kev nyuaj.
Daim ntawv me me ua tau zoo tshaj plaws ntawm kev sib tw ua ke - Hom
SFP qhov kev xa thiab cov neeg tuaj yeem tuaj yeem siv tau nrog ntau hom neeg sender recipient, tso cai tau txais kev pabcuam los xaiv cov kev xaib mus rau txhua qhov txuas mus rau cov ocular tau txais ntau tshaj li cov menyuam yaus fiber ntau cov tsiaj txhu (xws li Multi-fiber fiber ntau ib hom fiber ntau) . Optical SFP Cheebtsam yog cov nquag siv tau hauv qee qhov sib txawv ntawm cov khoom:
Rau ntau lub hom fiber ntau, nrog dub tshem cov leeg tshem tawm ntawm lub cev
SX - 850nm, rau ib qho loj tshaj ntawm 550m ntawm 1.25 Gbit / s (Gigabit Ethernet) yog 150m ntawm 4.25 Gbit / s (Fiber Channel). Yam khoom: 1000BASE SX SFP.
1000BASE-SX SFP
Rau ib hom fiber, nrog rau kev tshem tawm ntawm azure
LX - 1310nm, rau tej qhov chaw li 10km (xws li Cisco GLC-LX-SM-RGD).
EX - 1310nm, rau cov kis mus txog 40 km.
ZX - 1550nm, rau tej qhov chaw li 80km.
EZX - 1550nm, rau tej qhov chaw txog li 120km.
BX - 1490nm / 1310nm, Ib Fiber Bi-Directional Gigabit SFP Transceivers, sib npaug raws li "BS-U" thiab "BS-D" rau Uplink thiab Downlink correspondingly, zoo li rau tej qhov chaw mus txog 10km. Variations ntawm bidirectional SFPs yog zoo li tsim ua hauj lwm 1550nm hauv ib txoj kev tswj hwm.
1550nm 40km (XD), 80km (ZX), 120km (EX EZX)
SFSW - Single Fiber Ib lub voj ntev ntev thiab cov neeg tau txais kev pabcuam, rau SFPs ob-seem yog ib lub roj. Coupled nrog CWDM, cov duple lub flow thickness ntawm fiber ties.
CWDM thiab DWDM transmitters thiab receivers ntawm ntau lub wavelengths muaj ntau qhov chaw loj tshaj.
