ELV explained

What is ELV (Extra Low Voltage)?

ELV systems operate at low voltages (typically under 50V) and form the intelligent nervous system of a modern building — handling safety, security, communication, comfort and energy.

The nerve center of modern buildings

One connected ecosystem

Instead of many isolated systems, ELV integration brings fire, security, communication and automation together — so a building can sense, respond and optimise itself.

Because building technologies today are more business-driven than research-oriented, they benefit from advances across the wider tech industry. A well-designed ELV backbone lets you adopt those advances without ripping and replacing — the systems simply plug in.

Infographic: ELV systems as the nerve center of modern buildings — CCTV & security, fire alarm, public address, data & structured cabling, audio-visual, building automation and BMS

What ELV covers

Seven systems, one platform

Each one is a discipline of its own. Run over a shared backbone, they behave as a single system.

CCTV & Security

Surveillance cameras, access control and intrusion alarms.

Fire Alarm Systems

Smoke detectors, alarm panels and emergency alerts.

Public Address & Voice Evacuation

Announcements and emergency communications.

Data & Structured Cabling

LAN, Wi-Fi and telephone systems.

Audio-Visual Systems

Meeting-room screens, speakers and conference tech.

Home / Building Automation

Smart lighting, IoT and motorized curtains.

BMS (Building Management)

HVAC, lighting and energy monitoring — the supervisory layer that ties the other six together.

Building Management Systems

From sensor to supervisor

A modern BMS connects field devices to cloud supervision through open protocols (BACnet, Modbus, LON, M-Bus) — giving you centralised control of every building service.

Keyan designs BMS architectures on platforms such as Tridium Niagara and iSMA Controlli — spanning multi-site supervision down to individual I/O modules, control valves and meters.

  1. Multi-site building management & supervision
  2. Small & medium BMS
  3. HVAC & plant control
  4. Comfort management
  5. I/O modules & gateways
  6. Control valves & metering

Why it matters

The benefits of integrated ELV

What a properly integrated ELV backbone returns, day after day.

  • Automation and efficiency
  • Seamless connectivity and communication
  • Enhanced security and surveillance
  • Centralized control and monitoring
  • Simplified installation and maintenance
  • Scalability and flexibility
  • Reduced infrastructure and operating costs
  • Improved revenue realization
  • Efficient utilization of resources
Free consultation

Ready to design your building's ELV backbone?

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