一, Dulmarka farsamada ee modules-yada indhaha, oo sidoo kale loo yaqaan moduleka isku-dhafka ah ee transceiver, waa qaybta udub-dhexaadka u ah nidaamka isgaarsiinta fiber optic. Waxay gartaan is-beddelka u dhexeeya calaamadaha indhaha iyo calaamadaha korantada, taas oo u oggolaanaysa in xogta lagu gudbiyo xawaare sare ...
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