What signifies a red receptacle with a red cover plate in a garage?

A red receptacle with a red cover plate in a garage is specifically designed for use with fire alarm systems. This color coding is established to ensure that the electrical outlet is easily identifiable in situations where quick action may be required, such as emergencies involving fire safety systems. The red color typically signifies that the outlet has a critical function related to safety and needs to be accessed readily when necessary.

The other choices involve functions that are not appropriate for this specific identification. While there may be electrical outlets and connections that are coded in other ways for varying uses, the particular designation of red indicates a direct connection to fire alarm systems, highlighting the need for caution and awareness around its usage. This helps ensure compliance with safety regulations and effective emergency responses.