What is on the interior side of the faceplate in a hardline splitter or directional coupler?

The interior side of the faceplate in a hardline splitter or directional coupler contains the electronic circuitry and interconnect pins. This circuitry is crucial for the device's function as it manages the distribution or coupling of signals between different paths. The interconnect pins facilitate connections to other components in the system, allowing for signal transfer while maintaining electrical integrity.

In a hardline splitter or directional coupler, the primary purpose is to split or direct RF signals effectively while minimizing loss. To achieve this, the electronic circuitry typically includes matched resistive elements and reactive components that work together to ensure proper impedance and signal integrity. Given the context of signal distribution, the complexity and arrangement of the electronic circuitry play a vital role in the overall performance of the device.

While components like power supplies, amplifiers, or cooling systems are essential in different devices or contexts, they do not belong to the specific functionality of a hardline splitter or directional coupler in the way that electronic circuitry and interconnect pins do.