What is the typical input configuration of most line extender housings?

The typically correct configuration for most line extender housings includes multiple input ports for various signals. This design is advantageous because it allows for greater flexibility and versatility in managing different types of signals. Line extenders are often used to enhance the performance and reach of communication systems, making an arrangement with multiple input ports beneficial. This configuration not only supports a variety of signal types but also facilitates easier connections and management of different lines, ensuring that the system can accommodate different data and signal requirements.

The other options suggest simpler configurations that may not fully meet the needs of modern communication systems where multiple signals often need to be processed simultaneously, making them less suitable as the standard for line extender housings.