Which concern is relevant to RFoG and FTTx systems?

In RFoG (Radio Frequency over Glass) and FTTx (Fiber to the x) systems, the concern about how and who will provide AC power to the Optical Network Terminal (ONT) is quite relevant. In these systems, ONTs are critical devices that convert the optical signal into electrical signals for use in residential or commercial applications. Therefore, the provision of reliable AC power is essential to ensure that the ONT operates effectively.

In RFoG systems, which are often deployed in areas where traditional coaxial cable infrastructure exists, the ONT not only handles the optical signal but may also provide the necessary interface for downstream services. Consequently, the presence and reliability of AC power directly impact the functionality of these devices and the overall network performance. Ensuring a consistent power supply eliminates downtime and service interruptions.

The other options present concerns that may be important but are not as directly impactful on the operation of RFoG and FTTx systems as the provision of AC power. For instance, while the type of fiber or the distance between nodes can affect performance, they do not create immediate operational issues like power availability does. Bandwidth limitations are also a consideration but are typically addressed in the design phase rather than being a concern related to operational functionality as