
burst mooad clock daatta veendedukkalum

nishkriya opttikkal network (poonn) trea polulla network topology upayogikkunnu. poninte topology kaaranam, thaazhekkulla transmission modukal (athaayath opttikkal line termination muthal opttikkal network yoonit (oenyu) vare), mukalilekkulla transmission modukal (oenyu muthal oendi vare) enniva vyathyasthamaan. downstream traansmissionaayi, oolttu ellah utharavaadithangalilekkum opttikkal signal thudarchayaaya modil (centimeter) prakshepanam cheiyunnu, athaayath, downstream chaanalin ellaayppozhum opttikkal dattaa signal undu. framinte header vaayichukond sentmeettar streamile eathu frame aanennu kandethaan oraalkk kazhiyum. ennirunnaalum, upstream chanalil, onasinu opttikkal dattaa signal centimeteril kaimaran kazhiyilla. kaaranam, oonasil ninnu kaimaattam cheyyappedunna ellah signalukalum power splittar (power kaplaraayi pravartthikkunnu) vazhi oru fiberaayi (attenyuyeshanodoppam) othucherukayum centimeter upayogikkukayaanenkil avaa parasparam ovarlaappu cheyyukayum cheiyunnu. eee prashnam pariharikkunnathin, upstream chaanalinayi burst mooad (bm) transmission sweekarikkunnu. thannirikkunna oonu opttikkal paakkat oru time sloat anuvadikkumbol maathrame athu kaimarukayulloo, athu traansmit cheyyendathundu, koodaathe ellah utharavaadithangalum time division multiple axus (tdma) modil upstream chaanal pankidunnu. olttinu labhikkuna bm opttikkal paakkattukalude gattangal oro paakkattilum vyathyasthamaan, kaaranam ore ghattathil opttikkal paakkat kaimarunnathinulla utharavaaditham samanvayippichitilla, koodaathe olttum nalkia oonuvum thammilulla dooram kramarahithamanu. paakkattil ninnu paakkattilekkulla ghatta vyathiyaanam nikathaan, burst mooad clock daatta recovery (bm-cdr) aavasyamaanu. atharam sarkyoottin oru hraswa locking samayathinullil, udaaharanathinu 40 enn. ezz.-nullil, vyakthikk labhicha opttikkal paakkattin thulyamaaya aavruthiyum ghattavum upayogichu local clock srishtikkaan kazhiyum. atharam praadeshika klokkinu sariyaaya daatta theerumaanam edukkaan kazhiyum. ellaattinumupariyaayi, oru cheria locking samayathinu sesham clock daatta recovery shariyaayi nadatthaan kazhiyum.
parambaraagathamaayi upayogikkunna pii. ell. ell adisthaanamaakkiyulla clock recovery skeemukalkk locking samayat atharam karsanamaaya aavasyakatha niravettaan kazhiyilla. gated oosilettar allengil injection loock cheytha oosilettar upayogikkunnava ulppede mattu niravadhi skeemukal kandupidichittundu.

