How many modules are used for each stage when configured for uni-directional?

How many modules are used for each stage when configured for uni-directional?

• A. 7
• B. 9
• C. 8
• D. 10

Answer: (B)

In uni-directional configurations, each stage is built with three separate functional blocks, and each block is implemented with three modular units to provide clear separation, reliability, and signal integrity. Multiply those three modules per block by the three blocks, and you get nine modules per stage. This setup gives enough channels for sensing, control logic, and actuation within every stage, while keeping functions isolated so a fault in one block doesn’t propagate. The other counts don’t fit because they either omit a needed module for one of the functional blocks or add one that isn’t required by the standard stage layout in uni-directional mode. Nine modules per stage aligns with the typical design that ensures proper operation and fault tolerance across each stage.

In uni-directional configurations, each stage is built with three separate functional blocks, and each block is implemented with three modular units to provide clear separation, reliability, and signal integrity. Multiply those three modules per block by the three blocks, and you get nine modules per stage. This setup gives enough channels for sensing, control logic, and actuation within every stage, while keeping functions isolated so a fault in one block doesn’t propagate.

The other counts don’t fit because they either omit a needed module for one of the functional blocks or add one that isn’t required by the standard stage layout in uni-directional mode. Nine modules per stage aligns with the typical design that ensures proper operation and fault tolerance across each stage.