Aiphone DB-1SD Sub Master Station for DB-1MD

Built for reliable indoor access control and efficient site monitoring, the Aiphone DB-1SD Sub Master Station extends the DB Series audio intercom to support larger homes, offices, and multi-tenant buildings. As an Aiphone intercom master station sub-unit, the DB-1SD gives you flexible hands-free (VOX) or push-to-talk (PTT) communication, enabling quick internal or external responses that improve security and day-to-day operations. It supports up to five stations per door call button, connects via wired low-voltage cabling, and installs as a neat wall-mount unit (3.1" x 7.3") that draws 15V AC power. Because door release is powered by the door station, you reduce the need for additional transformers and simplify system maintenance. Ideal for access control, surveillance adjacencies, and centralized monitoring points, the DB-1SD integrates seamlessly with DA series door stations to create a robust audio-only entry solution. Add the Aiphone DB-1SD to your security toolkit to streamline communication and enhance perimeter management — contact us to configure or order for your next installation.

• Expandable audio access: Add the DB-1SD to increase tenant or room coverage for the DB Series, improving site-wide communication and security.
• Flexible communication modes: Hands-free VOX or push-to-talk (PTT) operation lets staff choose the fastest way to communicate in busy environments.
• Simplified installation: Compact 3.1" x 7.3" wall-mount design and wired connectivity minimize installation time and fit into existing low-voltage runs.
• Reliable door control: Works with DA series door stations and supports door release without an extra transformer, reducing components and service points.
• Professional-grade monitoring: Built for indoor access control and security monitoring, supporting up to five stations per door call for multi-tenant or multi-room sites.