What does an active PA-5 cab display show on the TOD screen?

An active PA-5 cab display on the Train Operations Display (TOD) screen shows a green square, indicating that the PA-5 is functioning correctly and is currently active in the system. The green square serves as a status indicator, communicating to operators that the unit is online and ready for operation. This color-coding system is critical for quick visual assessments, allowing personnel to efficiently monitor and assess the status of various components in the system.

In contrast, other colors on the display typically represent different statuses or alerts. For example, a red square might indicate a critical issue or fault that requires immediate attention, while a yellow circle could signify a warning or caution that needs to be addressed but is not as urgent. A blue triangle often represents a standby or non-active status. By using a standardized color scheme, operators can easily interpret the status of the PA-5 cab display at a glance, enhancing operational safety and efficiency.