Which of the following is a described capability of the PRCS in relation to LPWS?

• A. One PRCS can control three LPWS.
• B. Two PRCS can control two LPWS.
• C. One PRCS can control four LPWS.
• D. One PRCS can control two LPWS.

Answer: (D)

Understanding how many LPWS a PRCS can control is what this question is about. In this system, the PRCS is the central controller for LPWS units, and its capacity is defined so that a single PRCS can manage two LPWS. This 1-to-2 relationship balances control traffic, ensuring timely commands and status feedback while keeping the PRCS from becoming overloaded. If you tried to assign three or four LPWS to one PRCS, the control channel could become congested, leading to delays or missed updates. Assigning more than one PRCS to control two LPWS would add unnecessary redundancy and complexity for no real gain in this setup. Therefore, the described capability—one PRCS able to control two LPWS—is the correct understanding.