Control and behaviour
These words describe what a system does. Get them straight first, because a proposal full of scenes and schedules with no conditions behind them is describing a very capable remote control.
- Scene: a saved combination of settings across several devices, recalled with one press. An evening scene might set downlights low, lift the cove lighting, close the sheers and switch on the lamps.
- Schedule: a scene or action on a clock, running at a set time or at a time relative to sunrise or sunset, whether or not anyone is there.
- Automation, or rule: an instruction with a condition attached, such as lighting a corridor at ten per cent if movement is detected after midnight. Conditions are what separate an automated property from a remotely controlled one.
- Zone: a group of devices or part of a building treated as one for control. A climate zone shares a setpoint; a lighting zone is a group of circuits controlled together.
- Setback: a relaxed target the system falls back to when a space is empty or asleep, usually a cooling temperature a few degrees above the comfort setpoint.
- Occupancy and vacancy sensing: an occupancy sensor switches a load on when it detects presence and off when it stops, while a vacancy sensor only switches off and leaves switching on to a person.
Lighting
Lighting is usually the first system automated and the one people judge the result by. Our lighting control page covers how these pieces fit together in a finished room.
- Circuit: one switched electrical path from the board to a set of fittings. A system can only control lights as separately as the circuits already divide them.
- Driver: the electronics converting mains power into what an LED fitting needs. Whether a fitting dims well is decided by its driver more than by the lamp.
- Leading edge and trailing edge: two methods of mains dimming. Trailing edge is generally gentler with LED loads, and matching the method to the driver is what removes flicker and buzz.
- Minimum dim level: the lowest level a fitting holds without flickering or dropping out, set per circuit during commissioning because it depends on the lamps actually installed.
- Keypad: a wall control with named buttons that recall scenes instead of switching one light. It's the interface most guests and household staff will ever use.
- Retrofit module: a small control unit fitted inside an existing switch back box so a circuit becomes controllable without new cabling. It needs a neutral conductor and physical depth in the box.
Wiring and installation
These terms come from the electrical trade and appear throughout drawings, method statements and site conversations.
- First fix: the construction stage where cables, conduits and back boxes are installed while walls and ceilings are still open. Almost every provision for automation is cheap at first fix.
- Second fix: the later stage where visible parts are fitted, meaning plates, keypads, fittings and panels, once decoration is largely complete.
- Distribution board, or DB: the enclosure where circuits are split and protected. It defines what can be controlled and where equipment can go.
- Way: one position in a distribution board holding one protective device for one circuit. A spare way is an unused position, and running out of them is a common constraint.
- Neutral: the return conductor of a circuit. Many older switch positions carry only a live and a switched line, and a module requiring a neutral can't be installed where one is absent.
- Back box: the recessed box behind a switch or socket plate. Its depth decides whether a control module physically fits.
- Containment: the conduits, trunking and trays carrying cables through a building. Containment with spare capacity is what makes a property extendable later.
- Chasing and making good: cutting a channel into a wall for a cable, then filling and finishing it so the surface returns to how it was. Making good is a defined part of the work.
- Dry contact, or volt free contact: a pair of terminals a system closes or opens as a signal, carrying no voltage of its own. It's how automation commonly interfaces with gates, alarm panels and plant.
Cooling and climate
Cooling is where most of the energy goes in a Dubai property, and what serves a room decides how it can be controlled. Our climate control page explains how the approach differs between them.
- FCU, or fan coil unit: a unit with a fan and a coil fed by chilled water from a central plant, common in apartments and offices. It is controlled by fan speeds and a water valve, not a compressor.
- Split unit: a self contained air conditioner with an indoor unit and its own outdoor condenser serving one space, common in villas.
- Ducted unit: a concealed indoor unit feeding several rooms through ducts and grilles. Room by room control needs zone dampers, or the rooms share one setting.
- District cooling: chilled water produced at a central plant serving a whole development and metered per property. Where it is in use, the property has fan coil units and no compressor of its own.
- Setpoint: the target temperature a zone has been asked to hold. Setback is the relaxed version of that target used when the space is empty.
Curtains and blinds
Shading vocabulary is mostly physical, and the measurements decide more than the electronics do.
- Sheer and blackout: the sheer is the translucent layer that softens daylight and gives daytime privacy while keeping the view; blackout is the opaque layer that blocks light for sleeping.
- Double track: one track assembly carrying two layers, usually sheer and blackout. Each layer that moves independently needs its own motor.
- Pelmet: the recess or board concealing the curtain track. Its depth decides whether a motor and tube fit behind it while the fabric still hangs correctly.
- Drop: the vertical height of a curtain or blind. Drop and fabric weight together decide motor selection.
- Limits: the fully open and fully closed positions taught to a motor during commissioning, set to the fabric and the opening, not assumed from the hardware.
Network and cabling
Automation leans on the network more heavily than most owners expect, and these terms run through any network design and its handover documents.
- Structured cabling: a planned system where every outlet runs back to a central patch panel in a known, labelled and tested way, instead of cables added one at a time as needs appeared.
- Patch panel: the panel in the rack where every cable in the building terminates and is labelled, so any outlet can be connected to any port with a short lead.
- PoE, power over Ethernet: power delivered to a device over the same cable that carries its data, which is how access points, cameras, door stations and IP phones avoid needing a socket.
- Access point: the device providing Wi-Fi coverage in a defined area. Several of them, positioned by plan and connected by cable, are how a large property gets consistent coverage.
- VLAN: a way of separating one physical network into several logical ones, so cameras, guests, staff and control equipment don't share the same space.
- NVR, network video recorder: the device that records and stores footage from IP cameras. Retention is how long that footage is kept before it is overwritten.
- Rack or cabinet: the enclosure holding the switch, patch panel, recorder and controllers. It needs power, ventilation and access, and it is where a handover is most visibly good or bad.
Entry, gates and security
Access and security have their own vocabulary, some of it safety critical, and one term specific to Dubai.
SIRA (opens in a new tab), the Security Industry Regulatory Agency, is the Dubai government body that regulates the private security sector, including security camera installation. What applies depends on the property and its use, and the agency is the authority to check for current requirements. Our guide to CCTV rules in Dubai explains where the responsibility sits.
- Door station: the outdoor unit of a video intercom, with a camera, microphone, speaker and call button. Indoor monitors and phone apps are the answering points it calls.
- Maglock and electric strike: two ways of holding a door. A maglock is an electromagnet holding it closed while powered; a strike replaces the keeper the latch sits in and releases it on command.
- Fail safe and fail secure: what a lock does when power is lost. Fail safe releases, which suits escape routes; fail secure stays locked, which suits perimeter doors. The choice is a life safety decision as much as a security one.
- Mechanical override: the physical key, handle or crank that operates a lock, gate or motor when there is no power. Every automated entry point should have one, and the household should know where it is.
- Gate operator: the motor and controller that moves a gate. Sliding gates run along a track and swing gates pivot on posts, and each has its own space requirements.
- Photocell and safety edge: two ways a gate detects an obstruction. A photocell is a beam across the opening; a safety edge senses physical contact. Both stop or reverse the gate.
How systems talk to each other
These terms describe architecture, meaning where the intelligence lives and how devices communicate. Our guide to lighting control protocols goes further into the ones used for lighting.
- KNX: an open international standard for building control, usually wired, widely used on larger residential and commercial projects. Being open means equipment from different manufacturers can share one system.
- DALI: an open standard for lighting specifically, in which each fitting or driver is individually addressable, so a circuit can be reorganised in software instead of by rewiring.
- Zigbee, Z-Wave and Thread: low power wireless standards used by sensors, switches and battery devices. They form a mesh, where mains powered devices relay messages for the rest.
- Matter: a standard intended to let devices from different manufacturers work together across ecosystems, running over Wi-Fi and Thread.
- Controller or processor: the equipment holding the logic, meaning the scenes, schedules and rules. Where it physically sits decides what keeps working when the internet doesn't.
- Local and cloud: local functions are processed inside the building and should include scenes, schedules, keypads and sensor rules. Cloud functions run on a manufacturer's servers, such as remote access, voice assistants and updates, and it is reasonable for those to pause during an outage.
- Integration: making two systems act as one, so a cinema scene can dim lights and close curtains. It is the work that turns separate installations into a single system.
Project and paperwork
Finally, the words that appear around a project instead of inside it.
- Site survey: the first visit, where the building is inspected to establish what it will physically allow, covering boards, back boxes, ceilings, pelmets, controllers and cable routes.
- NOC, no objection certificate: written confirmation from a landlord, developer or building management that they have no objection to proposed works. Most managed buildings in Dubai want one before work touches doors, ceilings or risers.
- Fit out permit: the approval a building or authority requires before fit out work begins in a unit. What is required varies by building and by the nature of the work.
- Commissioning: the configuration stage where devices are addressed, limits set, dimming ranges trimmed and scenes written, turning installed hardware into a working system.
- Device schedule: the handover document listing every controlled device, where it is, what it sits on and what it is called in the system.
- As built: documentation describing what was actually installed, including where it differs from the design. It is the document the next engineer reads first.
- Handover: the point where documentation, administrator credentials and understanding transfer to the owner, usually alongside a training walkthrough. A property can be fully installed and still not handed over.
In short
Most of these words describe physical facts about a building, not features of a product, which is why they mean the same thing whoever is doing the work. If a proposal uses a term you cannot place, ask which of these it corresponds to. Three definitions carry more weight than the rest when you are reading a quote: scene, which tells you what the system will do; circuit, which tells you how finely it can do it; and handover, which tells you what you'll be left holding once everyone has gone home.
Common questions
A scene is a saved combination of settings across several devices, recalled with a single press. An evening scene in a living room might set the downlights low and warm, lift the cove lighting, close the sheer curtains and switch on the lamps, all from one button. A scene differs from a schedule, which is a scene on a clock, and from an automation, which is an instruction with a condition attached such as movement or temperature. Scenes are defined during commissioning and adjusted afterwards, once the household has lived with them.
First fix is the stage of construction where cables, conduits and back boxes go in while walls and ceilings are still open. Second fix is the later stage where the visible parts are fitted: switch plates, keypads, light fittings, panels and devices, once decoration is largely complete. For automation the distinction matters because almost every useful provision, meaning containment, cable routes, panel space and power at curtain pelmets, is inexpensive at first fix and disruptive to add once the building has closed up.
FCU stands for fan coil unit, an air conditioning unit containing a fan and a coil fed with chilled water from a central or district cooling plant rather than from its own compressor. Fan coil units are common in Dubai apartments and offices. They are controlled by switching fan speeds and by opening or closing a water valve, which is why the control approach for a fan coil differs from a split unit, and why the wiring behind the existing thermostat decides what can be fitted in its place.
A dry contact, also called a volt free contact, is a pair of terminals that a system simply closes or opens as a signal, carrying no voltage of its own. It is the simplest way for one system to tell another to act, and it is how automation commonly interfaces with gate operators, alarm panels, pumps and plant equipment that were never designed to talk to it directly. If a proposal mentions integrating another system by dry contact, it means a basic on or off instruction, not two way communication.
Structured cabling is a planned cabling system in which every outlet in a building runs back to a central patch panel in a known, labelled and tested way, instead of cables being added one at a time as needs arose. It is the foundation automation, Wi-Fi, cameras, door entry and telephones all sit on. Its practical benefit is that any outlet can be reassigned to any purpose from the rack, and that anyone servicing the building later can see what runs where without opening walls to find out.
NOC stands for no objection certificate, a written confirmation from a landlord, developer or building management that they have no objection to proposed works in a unit. Most managed buildings in Dubai expect one before work touches doors, ceilings, risers or anything shared, and some also require a fit out permit. Requirements vary between buildings and by the nature of the work, so the building's own management office is the place to confirm what applies before a programme of work is agreed.