Alpha FA-GB2/B GB2 System Power Supply Unit

Designed for dependable operation in multi-tenant and commercial installations, the Alpha Communications FA-GB2/B power supply unit delivers steady, rack-friendly power for GB2 intercom and monitoring systems. This power supply provides a regulated 28V DC output (±2V) with a rated 1.5A current, supporting up to 32 monitors and one entry panel so your security and surveillance network stays online without interruption. Its wide 100–240V AC input range and DIN-rail mounting make it suitable for global deployments and tidy cabinet layouts. Installers will appreciate the integrated normally-open relay for staircase lighting, which can be controlled directly from connected monitors to streamline access and building safety workflows. Built-in protections against short circuit, overload and overvoltage reduce risk to connected devices and lower maintenance overhead. Ideal for apartment buildings, offices and small commercial sites that use GB2 intercom systems, the FA-GB2/B simplifies power management across your access control, security and monitoring infrastructure. Add this Alpha Communications power supply to your next GB2 installation to improve uptime and operational reliability.

• Reliable centralized power for GB2 intercoms, keeping up to 32 monitors and one entry panel online for continuous security monitoring
• Built-in staircase relay for convenient remote control of lighting from monitors, improving site safety and user convenience
• Wide input range (100–240V AC) and stable 28V DC output ensure compatibility with international installations and consistent surveillance performance
• Compact DIN-rail mount design saves cabinet space and simplifies installation and service for installers and integrators
• Protections against short circuit, overload and overvoltage help minimize downtime and protect sensitive intercom and security hardware