ACO CDNP7ACC ST (G3) Digital Intercom Master & Slave Control Unit

Most intercom control units force a hard choice between master and slave operation, but the ACO CDNP7ACC ST (G3) merges both roles into a single DIN-rail module. This dual-function design lets you expand a residential or commercial complex without adding extra hardware, making it a cost-effective backbone for the ACO CDN digital intercom system.

Highlights

• Master & slave control unit for flexible system architecture
• Supports up to 255 apartments and 20 door panels (4 main + 16 slave)
• Simple 2-wire digital bus for easy installation and expansion
• Integrated relay output for gate/door opening and input for exit button
• USB interface for PC-based configuration and programming
• DIN-rail mounting (4 modules) with IP20 protection for indoor use

In daily use

Install the CDNP7ACC ST (G3) on a standard DIN rail in a distribution board or control cabinet. Connect it to the ACO CDN system's 2-wire bus, external 15V AC power supply, and your door panels and apartment stations. Using the USB port and ACO's PC software, configure tenant directories, access permissions, and call forwarding rules. The unit's relay output can trigger an electric strike or gate opener, while the input port accepts an exit button for convenient egress. Its ABS housing and IP20 rating suit indoor environments, with an operating temperature range of -20°C to +50°C.

Full specifications

• System Type: Digital Intercom System
• Compatibility: ACO CDN System
• Generation: G3
• Functionality: Master & Slave Control Unit
• Max. Uniphones/Apartments: 255
• Max. Main Door Panels: 4
• Max. Slave Door Panels: 16
• Power Supply: 15V AC (external power supply required)
• Mounting Type: DIN Rail (4 modules)
• Relay Outputs: 1 (e.g., for gate/door opening)
• Input Ports: 1 (e.g., for exit button)
• Communication Bus: 2-wire digital bus
• Programming Interface: USB (PC software)
• Housing Material: ABS Plastic
• Protection Rating: IP20
• Operating Temperature: -20°C to +50°C
• Key Features: Access control, Intercom function, Gate control, Call forwarding

Final note

The ACO CDNP7ACC ST (G3) is a versatile and reliable control unit that simplifies the installation and management of digital intercom systems, offering both master and slave functionality in one compact device.