Which of the following are the main values of "fiber-in copper-out"?

"Fiber-in copper-out" refers to the strategy of replacing traditional copper-based LANs with fiber-based Passive Optical Networks (PON). The main value propositions, as articulated in official solution documents, are significant long-term improvements. This includes a massive potential for bandwidth increase (smooth evolution to 40G/100G and beyond, representing a potential 1000-fold increase over legacy systems), a vastly increased transmission distance (fiber reaches 40km vs. copper's 100m limit, a 400x increase), and a much longer service life for the cabling infrastructure (fiber lasts over 30 years vs. copper's 5-7 year upgrade cycle, a 4x increase).

B. While an immediate upgrade from 1 Gbps copper to a 10G-PON system does represent a 10-fold bandwidth increase, the broader, more strategic value (A) lies in the fiber's near-limitless future potential, which is the more significant claim.

1. Huawei, "Huawei Campus OptiX Solution White Paper," Section 2.2: "Core Value." This document explicitly states the values of replacing copper with fiber, including "1000 times bandwidth improvement" (referring to future evolution potential), "400 times distance increase" (40 km vs. 100 m), and "4 times service life" (30 years vs. 7 years).

2. Huawei, "HCPA-Access V1.0 Training Material," Module: "Huawei FTTO Solution," Section: "FTTO Solution Value." This training material outlines the key benefits, using the specific metrics of 1000x bandwidth potential, 400x distance, and 4x service life.