Only two cables for power & signal, easy retrofitting for old buildings · Wide range of indoor monitors and outdoor door stations · Support electric lock release, stable two‑way audio · OEM & ODM customization available
The Challenge: Upgrading Old Buildings Without Breaking Walls
For property managers and building owners, upgrading an outdated intercom system often feels like a nightmare. Running new cables through concrete walls, tearing open finished corridors, and disrupting residents for weeks—it’s expensive, messy, and often simply impractical.
In China alone, nearly a thousand old residential communities face intercom system upgrades every year. The traditional approach of replacing analog voice intercoms with digital video systems requires extensive rewiring, drilling through walls, and creates noise and dust that disturbs residents. The result? High costs, long construction timelines, and frustrated tenants.
But what if there was a way to upgrade to a modern video intercom system without running a single new cable?
There is. It’s called 2-wire video intercom technology—and FARHD has mastered it.
The Solution: Two Wires. One Complete Upgrade.
FARHD’s 2-Wire Video Intercom Solution delivers all the benefits of a modern video intercom system using just the existing two-core cables already in your building.
Here’s how it works: power, audio, video, and control signals all transmit over a single pair of wires—non‑polarity, so you can’t connect them backwards. The system uses a centralised power supply, and can support up to 2 outdoor units and 6 indoor monitors in a single configuration.
What this means for you:
- Zero rewiring – Reuse the existing two-core cables already installed in your walls
- No wall damage – No drilling, no channelling, no patching
- Minimal disruption – Install in hours, not weeks—residents barely notice
- Dramatic cost savings – Less labour, less material, lower total project cost
- Quick installation – Upgrading an old intercom system becomes simple, regardless of the project scale
For old residential complexes, this represents a genuine leap forward—bringing modern HD video intercom to buildings that were previously too difficult or expensive to upgrade.
A Wide Range of Products for Every Need
FARHD offers a complete ecosystem of 2-wire intercom products, ensuring you can build a system perfectly tailored to your project:
Indoor Monitors (Various Sizes)
- High-definition displays with clear, crisp visuals
- Touchscreen or button operation
- Available in multiple screen sizes to suit different preferences
- Full-duplex two-way audio for natural conversations
Outdoor Door Stations
- Weatherproof designs for reliable outdoor operation
- HD cameras with infrared night vision
- Built-in card readers for keyless entry
- Durable construction for long-term use
System Accessories
- Centralised power supplies
- Wiring accessories and mounting hardware
- Integration modules for electric locks and access control systems
The 2-wire system also supports advanced features including photo capture, video recording, motion detection, and remote access via mobile apps
Post time: Jul-24-2026
