Final answer:
Transmission of trouble signals by a supervising station involves a sequence of stages in a monitoring process. The process goes through several points, starting from detection to the final response or acknowledgment after the issue has been addressed.
Step-by-step explanation:
The question refers to the transmission of trouble signals by a supervising station in a monitoring process. This process typically involves various stages where signals are transmitted across different points in a network or system. Dividing the explanation into parts for clarity:
- A and B: This could represent the initial detection of an issue by a sensor or input module (A) and the transmission of the signal to a local processor or control unit (B).
- B and C: At this stage, the control unit (B) may analyze the signal and, if necessary, communicate the problem to the next level, perhaps another control unit or a centralized monitoring system (C).
- C and D: This usually involves sending the processed information from a centralized system (C) over a network to a supervising station (D), possibly a place where human operators are alerted.
- D and E: The supervising station (D) would typically generate an appropriate response, which might involve dispatching maintenance personnel, logging the event, or activating other systems, indicated by (E).
- E and A: This could signify the resolution or acknowledgment of the initial trouble signal, potentially resetting sensors or updating system statuses to reflect that the issue has been addressed.