How many input/output jacks are located on the bottom of the SDC?

The SDC, or Signal Data Converter, is a vital component in the systems managed by Fire Controlmen. It serves crucial functions related to data transmission and conversion necessary for maintaining effective control of weapon systems. The number of input/output jacks on the bottom of the SDC is specifically designed to accommodate a variety of connections for various data signals.

In this case, the correct number of input/output jacks being 16 indicates that the SDC is designed to handle a maximum of 16 channels. This design ensures that there are enough ports for the necessary connections for both inputs and outputs to efficiently support the systems it is interfacing with. This capability is essential for the functionality of naval weapon control systems, allowing for comprehensive communication and data handling.

The other options, while they might represent different hypothetical designs, do not match the established technical specifications for the SDC as it is currently understood within the curriculum and practice of a Fire Controlman. Understanding this distinction is key in recognizing the operational capabilities and limitations of the equipment used in naval operations.