Nooca transceiver indhaha & nooca interface

Transceiver Optical waa qalabka terminaalka ee gudbinta ishaarada indhaha.

1. Nooca transceiver indhaha:
Transceiver Optical waa aalad u beddesha E1 badan (heerka gudbinta xogta ee khadadka jirridda, badiyaa heerka 2.048Mbps, heerkan waxaa lagu isticmaalaa Shiinaha iyo Yurub) oo u gudbiya calaamadaha indhaha oo u gudbiya (shaqadeeda ugu weyn waa in la xaqiijiyo koronto- indhaha).iyo beddelka iftiinka-korontada).Transceivers indhaha waxay leeyihiin qiimo kala duwan marka loo eego tirada dekedaha E1 ee la kala qaado.Guud ahaan, transceiver-ka ugu yar wuxuu gudbin karaa 4 E1, transceiver-ka ugu weyn ee hadda wuxuu gudbin karaa 4032 E1.

transceivers indhaha waxa loo qaybiyaa transceivers analoog iyo transceivers indhaha dhijitaalka ah:
1) Analog optical transceiver

Transceiver-ka analoogga ah wuxuu qaataa tignoolajiyada wax-ka-beddelka PFM si uu u gudbiyo calaamadda sawirka wakhtiga dhabta ah, kaas oo ah midka ugu badan ee hadda la isticmaalo.Dhammaadka gudbinta marka hore waxay qabataa qaabaynta PFM ee calaamadda fiidyowga analoogga ah, ka dibna waxay qabataa beddelka korantada-optical.Ka dib markii calaamadda indhaha loo gudbiyo dhamaadka helitaanka, wuxuu sameeyaa beddelka indhaha-korontada, ka dibna wuxuu sameeyaa PFM demodulation si loo soo celiyo calaamadda muuqaalka.Isticmaalka tignoolajiyada is-beddelka PFM awgeed, masaafada gudbintu waxay si fudud u gaari kartaa ilaa 30 Km, masaafada gudbinta ee badeecadaha qaarkood waxay gaari kartaa 60 Km, ama xitaa boqolaal kiiloomitir.Intaa waxaa dheer, calaamadda sawirku waxay leedahay qallooc aad u yar ka dib gudbinta, oo leh saamiga sare ee signal-to-sanqa iyo qallooc yar oo aan toos ahayn.Adigoo isticmaalaya tignoolajiyada isku dhufashada mawjada dhererka, gudbinta labada jiho ee sawirka iyo calaamadaha xogta ayaa sidoo kale lagu xaqiijin karaa hal fiber indhaha si loo daboolo baahiyaha dhabta ah ee mashaariicda kormeerka.

Si kastaba ha noqotee, transceiver-ka analogga ah wuxuu kaloo leeyahay faa'iidooyin qaar:
a) Dejinta wax soo saarku waa adag tahay;
b) Way adag tahay in la xaqiijiyo gudbinta sawirka kanaalka badan oo leh hal fibre, waxqabadkuna wuu hoos u dhacayaa.Waqtigan xaadirka ah, noocan ah transceiver indhaha analoogga guud ahaan kaliya gudbin karaa 4-kanaal images on hal fiber;
c) Maaddaama farsamada is-beddelka analogga ah iyo tignoolajiyada demodulation la isticmaalo, xasilloonideedu maaha mid aad u sareysa.Kordhinta wakhtiga isticmaalka ama isbeddelka sifooyinka deegaanka, waxqabadka transceiver indhaha ayaa sidoo kale isbeddeli doona, taas oo keeneysa xoogaa dhib ah mashruuca.

2) Transceiver Optical Digital
Maadaama tignoolajiyada dhijitaalka ah ay leedahay faa'iidooyin muuqda oo dhinacyo badan leh marka la barbar dhigo tignoolajiyada analogga ah ee dhaqanka, sida tignoolajiyada dhijitaalka ah ay u bedeshay tignoolajiyada analoogga ee dhinacyo badan, digitization transceiver indhaha sidoo kale waa isbeddel lama huraan ah.Waqtigan xaadirka ah, waxaa jira inta badan laba hab farsamo oo ah transceiver image digital image: mid waa MPEG II image riixo digital transceiver, iyo ka kale waa non-cadaadiyey digital image transceiver indhaha.Isku-buufinta Sawir-qaadayaasha Dijital ah waxay guud ahaan adeegsadaan tignoolajiyada isku-buufinta sawirka MPEG II, taasoo ku cadaadin karta sawirrada dhaqaaqa N×2Mbps durdurrada xogta oo u gudbiya is-gaarsiinta isgaarsiinta caadiga ah ama si toos ah iyadoo loo marayo fiilooyinka indhaha.Sababtoo ah isticmaalka tignoolajiyada isku-buufinta sawirka, waxay si weyn u dhimi kartaa xawaaraha gudbinta calaamadaha.

800PX-


Waqtiga boostada: Jul-21-2022