Since they provide the same functions, what is the primary difference between the FDH and the FAT?

The primary difference between the Fiber Distribution Hub (FDH) and the Fiber Access Terminal (FAT) lies in their design and application, particularly in ease of installation and the typical fiber counts. The FAT is generally easier to install because it’s designed for environments where simplicity and compactness are prioritized. It often accommodates lower fiber counts, making it suitable for smaller-scale applications or connections, such as in residential networks or small business setups. This lower count and simpler design also mean that FATs can be deployed quickly and with less complex installation processes compared to FDHs.

In contrast, FDHs are typically designed to handle higher capacities and more complex configurations, making them ideal for larger networks and processing greater amounts of data across multiple connections. While both serve similar functions in fiber management, their differences in capacity, installation complexity, and application settings define their usage in network design. Therefore, the correct choice underscores the practicality and purpose-designed aspects that differentiate FATs from FDHs.