How must car gate switches be wired for cars that have front and rear openings?

Car gate switches must be wired in series for cars that have front and rear openings to ensure that both gates must be closed before the elevator can operate. When wired in series, the electrical circuit is only completed when both switches are activated, providing a safety mechanism that prevents the elevator from being called or running if either of the gates is open. This configuration ensures that the elevator only operates when both openings are secure, reducing the risk of accidents or injuries that could occur if the elevator were to move with either gate open.

In contrast, wiring the switches in parallel would allow for the elevator to operate even if one of the gates were open, which compromises safety. Individually wiring the switches would not provide a means to ensure that both openings are secure simultaneously, and wiring them in a loop does not apply in this context. Thus, wiring the car gate switches in series is the most effective and safe approach for elevators with multiple openings.