Flexible wiring · Compatible with electric locks / magnetic locks & exit buttons · Dedicated power supply for stable operation · Easy integration for new construction or retrofits · Factory direct supply, custom solutions for your projects

For apartments, office buildings, factory dormitories, and similar scenarios, a stable, cost‑effective, and easy‑to‑install intercom system is essential for improving management efficiency and resident safety. Not every building needs video intercom – sometimes, clear and reliable audio communication, combined with card or code access, is more than enough for daily use.

The FARHD Audio-intercomsysteem voor appartementen was designed for exactly these needs. Building on 28 years of experience in the security intercom industry, it integrates flexibility, compatibility, and stability into one high‑value solution – perfect for both new construction and retrofit projects.

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1. Flexible Wiring – Adapts to Different Building Structures

Traditional audio intercoms often have strict cable requirements, making retrofits difficult. FARHD’s audio system supports multiple wiring options:

• 2‑wire: Uses existing two‑core cables (telephone lines, old intercom wires). No need to run new conduits – ideal for old community retrofits.
• 4‑wire: Separate power and signal lines for better noise immunity, suitable for long distances or complex electromagnetic environments.

Whether your building is decades old or brand new, you will find a wiring option that fits. Maximum transmission distance is 100 metres – enough for any apartment building.

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2. Compatible with Electric Locks, Magnetic Locks & Exit Buttons – Integrated Door Control

One of the core functions of an intercom is controlling door locks. FARHD’s audio system includes a relay output that works seamlessly with:

• Electric bolt locks (fail‑safe or fail‑secure)
• Magnetic locks
• Electric strike locks
• Motor locks (latch‑type)

The system also supports an external exit button. Residents can press the button to unlock the door without calling the indoor unit – a standard feature for stairwells, fire exits, and side entrances.

No additional controller needed – the audio indoor monitor or door station drives the lock directly, reducing system complexity and potential failure points.

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3. Dedicated Power Supply – Stable Operation 24/7

Long‑term reliability depends on a stable power source. We provide dedicated intercom power supplies (15V or 18V, depending on system capacity) with the following features:

• Stable output – low ripple, surge protection for downstream devices.
• Sufficient capacity – a single power supply can drive dozens of indoor monitors and door stations.
• Overload protection – automatically cuts off on short circuit or overcurrent; resets after fault clearance.
• Wide input voltage (AC 100V~240V) – suitable for global power grids.

For large projects, a multi‑power zone design ensures each branch remains stable and reliable.

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4. Easy Integration for New Construction or Retrofits

New Construction

• Pre‑install 2‑wire or 4‑wire conduits – low cost, fast installation.
• Indoor units can be simple audio handsets or desktop speakerphones – no need for large wall cutouts.
• Future‑proof: system can be upgraded to video intercom while reusing the same cabling.

Retrofits

• Reuse existing conduits and cables (most older buildings already have two‑core wiring). Simply replace the old door station and indoor handsets.
• No wall damage, no tenant relocation. Construction is typically completed in 1‑3 days.
• Existing electric locks and exit buttons can often be reused, further saving costs.

Whether new build or renovation, FARHD’s audio system deploys with minimal disruption.

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5. System Capacity & Functions

Item	Specificatie
Max. door stations	2 (expandable)
Max. indoor monitors	4 (expandable via series connection)
Apartment capacity	≤ 1024 units per door station (external decoder) or ≤ 32 units (internal decoder)
Calling method	Direct‑press buttons or coded keypad (optional)
Unlock methods	Indoor handset unlock, card swipe (optional), exit button
Intercom	Full‑duplex hands‑free, adjustable volume
Additional features	Call management station, fire alarm integration (optional)

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6. Why Choose FARHD’s Audio Intercom System?

• 28 years of manufacturing experience – From core components (audio modules, power supplies) to finished systems, all produced in‑house for full quality control.
• Direct factory – No middlemen, competitive pricing, reliable lead times.
• Custom solutions – Tailored nameplates, button counts, housing colours, logos, and more to meet project requirements.
• No MOQ – Sample orders start from one unit; bulk orders delivered quickly.
• Proven globally – Products used in apartments, dormitories, and office buildings across 60+ countries.

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7. Ideal Applications

Scenario	Recommended Configuration
Old community retrofit	2‑wire system + internal decoder door station + audio indoor handsets
New low‑cost apartment	4‑wire system + external decoder door station + desktop audio intercom
Company dormitory / staff building	Door station with card reader + indoor handsets with call‑to‑management function
Office side / back entrance	Single door station + indoor hands‑free intercom + exit button
Small commercial premises	Direct‑press door station calling the front desk; remote unlock from desk unit

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8. Request Samples & Quotation Today

Whether you are a contractor, property manager, or security brand owner, FARHD’s Audio Apartment Intercom System provides a reliable, cost‑effective, and easy‑to‑deploy building intercom solution.

📩 Contact us for catalog, samples, or quotation.
🌐 Website: www.farhd.com
📧 Email: [email protected]
💬 Reply “AUDIO INTERCOM” for a quick proposal.

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