Intercom handset CYFRAL SMART BI/CZ for 2-wire installations — multi-subscriber unifon

CYFRAL SMART BI/CZ is a multi-subscriber unifon created for 2-wire intercom installations in multi-apartment buildings. Designed for indoor mounting, the device supports clear audio communication between occupants and visitors and provides subscriber selection and door release control on standard two-conductor systems. The compact handset interfaces with common CYFRAL two-wire panels and simplifies management of visitor access while maintaining the basic functions expected from residential unifons.

Advantages

The unifon offers reliable audio transmission over two-conductor wiring and straightforward subscriber selection suitable for multi-apartment systems. Installation and indoor mounting are compact and space-efficient, and the unit integrates with typical two-wire intercom infrastructures without requiring additional wiring. Operation covers essential functions — answering calls and activating electric door release — in a single handset intended for everyday residential use.

Suitable for

• Multi-apartment residential buildings with two-conductor intercom wiring
• Indoor wall mounting in apartments, concierge rooms or private offices
• Replacement or upgrade of compatible two-wire unifons in existing CYFRAL installations

Key specifications

• Type: multi-subscriber unifon for two-wire systems
• Mounting: indoor wall-mounted handset
• Functions: audio communication, subscriber selection, door release activation
• Compatibility: designed for typical two-conductor intercom panels and multi-apartment systems
• Controls: handset receiver, call handling and door release controls

How to use

After connecting the handset to the building's two-wire intercom bus according to installation instructions, mount the unit on a prepared indoor surface at a convenient height. Use the handset receiver to listen and speak with visitors and operate the subscriber selection control to call other apartments if the connected panel supports multi-subscriber calling. Press the door release control when authorized to permit entry. Regularly verify wiring connections and secure mounting to ensure uninterrupted operation.

Usage recommendations

Install and commission the unifon following the manufacturer's wiring diagram and safety guidelines; use qualified personnel for electrical connections. Keep the indoor installation dry and protected from direct moisture and extreme temperatures to maintain reliable audio performance and mechanical durability.