Which element in a PON utilizes patch panels?

In a Passive Optical Network (PON), the correct element that utilizes patch panels is the Optical Distribution Frame (ODF). Patch panels are crucial in managing and organizing fiber optic connections, allowing easier maintenance, rerouting, and cross-connections within the network infrastructure.

The ODF serves as an intermediary point where fibers from the outside plant connect to the indoor equipment, and it is in this space that patch panels are often used. These panels help in properly terminating the fibers, providing flexibility in connecting various network elements, and streamlining the management of fiber connections.

Other elements, such as the Fiber Distribution Hub (FDH) and the Optical Network Device (OND), may include components for fiber management but typically do not utilize patch panels to the same extent as an ODF. The Multi-Service Transport (MST) is focused on integrating multiple types of data transport but does not primarily engage with patch panel functionalities.