توضیحات :
The prevalence of broadband networks boosts demand for services such as high-digital TV (HDTV), media-on-demand (MOD), voice-over-IP (VoIP) and online gaming, etc. GEPON is a technology that provides 1.25Gbps throughput for both upstream and downstream transmissions, and therefore at least 30Mbps of bi-directional bandwidth for each subscriber (1:32). It is not only a cost-effective access technology with reliable and scalable carrier-grade Ethernet connectivity, but also fulfills the need of Triple-play services.
Construction of the fiber access networks is the most labor-intensive task in FTTX projects and thus the most expensive one. However, PON architectures cost less since less fiber material is required. Since PON networks use splitters to minimize fiber deployments in local loops and require no power between CO and the network terminals, it also costs less to maintain PON networks.
On PON networks, a subscriber must be within 10-20km from the CO, depending on the total number of splits (less distance with more splits). As the OLT-1308S-22 supports a maximum distance to 20km, you can choose ONU5100-B22 for up to 20km deployments to adapt to the planned network structure.
Since ONU can be added or removed easily without prohibiting expense, flexible applications can be chosen your different network architectures. While FTTH deploys ONU in residences, FTTN/FTTC is a combination of fiber and existing copper infrastructures. Under extreme conditions (4-5km), some subscribers may not be able to have DSL service. FTTN fiber cable is deployed from CO to an outside plant cabinet or remote terminal (RT).
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