Aiming at the core technical difficulties in CATV long-haul transmission scenarios, including significant fiber link loss, signal quality degradation after multi-stage transmission, insufficient link stability in complex environments, and high investment in redundant construction, this solution relies on in-house developed core optical transmission equipment. It adopts an all-optical transmission architecture of high-performance front-end transmission + cascaded optical amplification + standardized optical splitting and distribution, which realizes long-haul link loss control, signal quality assurance and complex environment adaptation. Meanwhile, it is fully compatible with the existing network architecture to reduce redundant investment, and ensures high-quality and stable long-haul transmission of CATV signals.
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