一,Mabda'a sawir-qaadista
Theqaataha indhahawaa qayb muhiim ah oo ka mid ah nidaamka isgaarsiinta fiber optic.Mabda'eeda aasaasiga ah waa in loo beddelo calaamadaha indhaha ee calaamadaha korantada.Qaybaha ugu muhiimsan ee qaataha indhaha waxa ka mid ah sawir-qaade, horudhac iyo cod-sameeyaha.Marka ishaarka indhaha loo gudbiyo sawir-qaadaha iyada oo loo marayo fiber-ka indhaha, sawir-qaaduhu wuxuu u beddelaa calaamadda indhaha oo u beddela signalka korantada, ka dibna calaamadda waa la xoojiyaa oo lagu sifeeyaa preamplifier-ka, ugu dambeyntiina waa la sii farsameeyaa oo lagu kala qaadaa boostada.
二,Shaqada sawir-qaadista
1. U beddelashada calaamadaha indhaha oo loo beddelo calaamadaha korantada:Shaqada aasaasiga ah ee soo-dhoweeyaha indhaha waa inuu u beddelo calaamadaha indhaha ee la kala qaado oo loo beddelo calaamadaha korantada si loo fududeeyo hab-samaynta iyo gudbinta calaamadaha xiga.Tan waxaa lagu sameeyaa iyadoo la adeegsanayo sawir-qaadayaasha, kuwaas oo ogaanaya calaamadaha iftiinka daciifka ah oo u beddelaya calaamadaha korantada.
2. Kordhinta ishaarada:Maaddaama xoogga calaamadda indhaha ay si tartiib tartiib ah u daciifin doonto inta lagu jiro habka gudbinta fiber-ka, xoojinta calaamadda indhaha ayaa laga yaabaa inay aad u liidato marka ay gaarto aqbalaha indhaha.Preamplifier-ka ku jira aqbalaha indhaha ayaa kor u qaadi kara calaamadahan korantada ee daciifka ah si ay si wanaagsan u habeeyaan oo la isugu gudbiyo.
3. Shaandhaynta ishaarada:Inta lagu guda jiro habka gudbinta fiber indhaha, dhawaaqyo iyo faragelin kala duwan ayaa laga yaabaa in la soo bandhigo, taas oo saameyn doonta tayada signalka.Preamplifier-ka ku jira soo-dhowrka indhaha waxaa badanaa lagu qalabeeyaa shaandheyn si looga saaro dhawaaqyadaas iyo faragelinta iyo hagaajinta tayada calaamadda.
4. Habaynta ishaarada:Cod-weyneeye ka dambeeya waxa uu sii socodsiin karaa calaamadda korantada, sida kood-samaynta, habaynta, iwm., si loogu soo celiyo dhijitaalka asalka ah ama calaamadda analoogga ah.Intaa waxaa dheer, iyada oo loo marayo cod-weyneeye ka dib, calaamadda korantada ayaa sidoo kale la hagaajin karaa oo la hagaajin karaa, sida hagaajinta xajmiga, soo noqnoqda iyo xuduudaha kale ee calaamadda, si ay u buuxiso shuruudaha hababka isgaarsiinta ee xiga.
5. Calaamadaha korontada oo soo baxa:Calaamadaha korantada ee la farsameeyay waxaa loo soo saari karaa aaladaha kale ama nidaamyada si loo gaaro gudbinta macluumaadka iyo wadaaga.Tusaale ahaan, nidaamka isgaarsiinta fiber optic, calaamadaha korantada ee uu farsameeyo soo-dhoweeyaha indhaha waxaa loo gudbin karaa kombiyuutarada, furayaasha ama qalabka kale ee isgaarsiinta.
三,Hordhac CEITATECH FTTH qaataha indhaha
1.FTTH Iibiyaha indhaha (CT-2001C)Dulmar
Alaabtani waa FTTH soo dhawaynta indhaha.Waxay qabataa helitaanka awoodda hoose ee indhaha iyo kontoroolka indhaha ee tignoolajiyada AGC si loo daboolo baahiyaha fiber-ilaa-guriga.Isticmaal ciyaar saddex-geesood ah gelinta indhaha, kontorool xasilloonida calaamadda iyada oo loo marayo AGC, oo leh WDM, 1100-1620nm CATV beddelka sawirka korontada iyo wax soo saarka RF barnaamijka TV-ga fiilada.
Alaabtu waxay leedahay sifooyinka qaab-dhismeedka is haysta, rakibid ku habboon iyo qiimo jaban.Waa badeecad ku habboon in la dhiso shabakadda TV-ga FTTH.
FTTH Iibiyaha indhaha(CT-2001C)
l qolof caag ah oo tayo sare leh oo leh qiime sare oo dab ah oo wanaagsan.
l RF kanaalka buuxa ee GaAs wareegga cod-weyneeye hoose.Soo dhaweynta ugu yar ee calaamadaha dhijitaalka ah waa -18dBm, iyo soo dhaweynta ugu yar ee calaamadaha analoogga waa -15dBm.
l Xakamaynta AGC waa -2 ~ -14dBm, iyo wax soo saarku asal ahaan waxba kama beddelin.(AGC kala duwan ayaa loo habeyn karaa iyadoo loo eegayo isticmaale).
l Naqshadeynta isticmaalka tamarta hoose, iyadoo la adeegsanayo wax-ku-oolnimada sare ee tamarta beddelka si loo hubiyo kalsoonida sare iyo xasilloonida sare ee korontada.Isticmaalka awoodda mishiinka oo dhan ayaa ka yar 3W, oo leh wareegga ogaanshaha iftiinka.
l WDM-ku-dhisan, garwaaqso hal-gal fiber oo keliya (1100-1620nm)
l SC/APC iyo SC/UPC ama FC/APC xiriiriyaha indhaha, metric ama inch RF interface optional.
l Habka sahayda korantada ee 12V DC ee dekedda.
1.1jaantuska jaantuska
2.FTTH Iibiyaha indhaha (CT-2002C)Dulmar
Alaabtani waa FTTH soo-dhoweeyaha indhaha, iyadoo la adeegsanayo helitaan muuqaal ah oo hooseeya iyo tignoolajiyada kontoroolka indhaha ee AGC, kaas oo dabooli kara baahiyaha fiber-to-guriga, waxaana loo isticmaali karaa iyadoo lala kaashanayo ONU ama EOC si loo gaaro ciyaar saddex-jibbaaran.Waxaa jira WDM, 1550nm CATV signal beddelaad sawir qaade iyo wax soo saarka RF, 1490/1310 nm PON signal si toos ah u dhex maraa, kaas oo la kulmi kara FTTH mid ka mid ah gudbinta fiber indhaha CATV + EPON.
Alaabtu qaab dhismeedkeedu waa isku dhafan yihiin, waana sahlan tahay in la rakibo, waana badeecad ku habboon in la dhiso shabakad FTTH ah oo fiilada TV-ga ah.
FTTH Iibiyaha indhaha (CT-2002C)
l qolof caag ah oo tayo sare leh oo leh qiime sare oo dab ah oo wanaagsan.
l RF kanaalka buuxa ee GaAs wareegga cod-weyneeye hoose.Soo dhaweynta ugu yar ee calaamadaha dhijitaalka ah waa -18dBm, iyo soo dhaweynta ugu yar ee calaamadaha analoogga waa -15dBm.
l Xakamaynta AGC waa -2 ~ -12dBm, wax soo saarkuna asal ahaan waxba kama beddelin.(AGC
kala duwan waxaa loo habeyn karaa iyadoo loo eegayo isticmaale).
l Naqshadeynta isticmaalka tamarta hoose, iyadoo la adeegsanayo wax-ku-oolnimada sare ee tamarta beddelka si loo hubiyo kalsoonida sare iyo xasilloonida sare ee korontada.Isticmaalka awoodda mishiinka oo dhan ayaa ka yar 3W, oo leh wareegga ogaanshaha iftiinka.
l WDM-ku-dhisan, garwaaqso gelitaanka hal-fiber (1490/1310/1550nm) codsiga ciyaarta saddex-geesoodka ah.
l SC/APC ama FC/APC xiriiriyaha indhaha, metric ama inch RF interface optional.
l Habka sahayda korantada ee 12V DC ee dekedda.
2.2jaantuska jaantuska
Waqtiga boostada: Jan-13-2024
