Bogen SI35A Expandable Desktop Intercom Control Center for Speaker Stations

Reliable centralized communication and rapid emergency notification for schools, healthcare buildings, and corporate campuses. The Bogen SI35A Expandable Desktop Intercom Control Center is a robust intercom master station designed to streamline voice communications, paging, and program distribution across multiple rooms. With a dedicated 20-watt intercom amplifier and a separate 35-watt program amplifier, the SI35A lets operators make instant two-way calls while simultaneously distributing background music or announcements. The unit ships supporting 25 rooms and is field-expandable to 75 stations in 25-room increments, giving you a cost-effective growth path as facility needs change.

Built for reliability, the wired desktop design and 110V AC power ensure continuous operation for critical security and monitoring tasks. Features such as remote emergency page, time signaling, and telco/voice call-in integration make the SI35A a versatile choice for intercom, paging, and surveillance-linked communication systems. Deploy the Bogen SI35A to strengthen site security and operational communication—contact your integrator or sales rep to configure the system for your application.

• Centralize building communications and emergency paging to improve response times and occupant safety
• Scalable system: supports 25 rooms out of the box and expands up to 75 rooms in 25-room increments for growing facilities
• Dual-channel design separates intercom (20-watt) and program audio (35-watt) so paging and background audio run simultaneously without interference
• Remote emergency page and all-room announcement capability for instant mass notification during security or safety events
• Wired desktop form factor with 110V AC power delivers reliable, low-latency performance ideal for security, monitoring, and surveillance applications