What visual indication occurs when the EMER PILOT button is pressed on the ERJ 175?

When the EMER PILOT button is pressed on the ERJ 175, it activates a critical emergency communication system, which is visually indicated by a red flashing light. This light appears on both the interphone and the flight attendant (FA) indicator panel. The reason for this indication is to ensure that the flight crew can communicate emergency situations effectively and immediately alert the cabin crew to the gravity of the situation.

The simultaneous activation of lights on both the interphone and the FA indicator panel serves to enhance situational awareness and prompt a swift response from the cabin crew, who may need to act quickly based on the type of emergency indicated. This dual indication mechanism emphasizes the importance of crew coordination during emergencies.