Final answer:
The AGENT pushbutton DISCH light indicates that the fire extinguishing agent has been discharged. This serves as a visual cue for emergency response and prompts adherence to safety protocols.
Step-by-step explanation:
The AGENT pushbutton DISCH light when illuminated typically signifies that the fire extinguishing agent has been discharged. When a fire panel's discharge light turns on, it is an indication that the fire suppression system has released its extinguishing agent to address a fire incident. This function is critical in ensuring that fires are quickly and effectively contained, reducing damage to property and potential harm to individuals within the affected area. The light serves as a visual cue to emergency response personnel and building occupants, alerting them that the fire suppression system has been activated and that they should follow safety protocols accordingly.