Mircom MA-485A Intercom Amplifier

Designed for apartment buildings and multi-tenant properties, the Mircom MA-485A intercom amplifier delivers dependable audio amplification, control and power to streamline access control and tenant communication. This intercom amplifier uses an Automatic Level Control (ALC) circuit to maintain clean, clear voice communication in both directions, reducing misunderstandings and improving response times at entry points. It supports both AC (buzzing) and DC (silent) door strike action so installers can select the door release method that matches the building’s access policy and hardware. The MA-485A is engineered for compatibility with IS-489 suite stations and vestibule panels and scales to multiple vestibules using RL-401A relay units (one RL-401A per two vestibules), making it simple to expand security and monitoring coverage. Compact and robust, the unit fits easily into low-voltage security closets and integrates with building surveillance and access control systems. Upgrade your entryway communication and access control—add the Mircom MA-485A to your security infrastructure or contact your integrator to specify it for your next installation.

• Delivers clear, consistent two-way audio with Automatic Level Control (ALC) to improve tenant communication and reduce noise complaints
• Provides reliable AC (buzzing) and DC (silent) door strike control for flexible access control and unobtrusive entry options
• Powers and controls IS-489 suite stations and vestibule panels for seamless integration into multi-unit intercom systems
• Scales for multi-vestibule installations using RL-401A relay units, simplifying expansion without redesigning core wiring
• Backed by a 3-year limited warranty to minimize downtime and support long-term building security plans