Lux Intelligent - Knowledge Base

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Can I use Lux Intelligent with ANY emergency light?

Almost.  In most instances, implementing Lux Intelligent is achieved by simply installing the Lux Intelligent PLU Module into the luminaire to be monitored.  As the system monitors the actual light source, in some instances, an additional step to interface to the light source may be required.  There are very few cases where it is not possible to implement the system, and this would tend to be around luminaires not ideally suited to emergency lighting usage.

For more information take a look at:

Are Lux Intelligent PLU Modules required to be fitted to our lights?

Yes, the Lux Intelligent panels can only communicate through the PLUs and without them, the monitoring and testing features cannot be achieved.

For more information take a look at:

How does the PLU Module work?

The PLU Module interfaces with the light fitting through some re-arranging of the standard emergency wiring.  It monitors the permanent mains supply to the light as well as being able to interrupt this connection.  This is essential in ensuring that the PLU can instigate mains fail conditions. 

It is also connected to the internal rechargeable battery terminals (where fitted), to allow the panel to be aware of the voltages during charging and discharging cycles. 

Finally, the PLU also monitors the actual light output from the luminaire via the it’s glass fibre.

The PLU contains information specific to the light fitting, which it communicates to the Lux Intelligent panel, which allows the panel to determine if the light fitting is functioning correctly, i.e. Maintained or non-maintained luminaire, number and type of rechargeable cells within the luminaire.  It also has a ‘lighting threshold’ value set, the point at which the panel determines if the light source is on or off.  All this information is set either during commissioning, or at the time of manufacture/re-engineering of the light fitting.

An important point to remember is that in the event of losing all the addressable aspects of the system, a light with a PLU installed will behave just like a normal emergency light fitting.

Do I need to buy new addressable lights?

No, if you are looking to add Lux Intelligent as a testing solution to your existing emergency lighting system, you do not need to replace your existing luminaires.

In order to use your own, or third party lights , with Lux Intelligent each light must be fitted with a PLU Module.  These modules can be installed by Advanced, or alternatively by your own electricians.

Lux Intelligent does have a complete range of emergency lighting luminaires which are supplied fitted with the PLU Module.  This range also includes the latest LED luminaire technology.

How does Lux Intelligent monitor my lights?

When a Lux Intelligent system is installed, each emergency luminaire is physically monitored by the emergency lighting test panel continuously.  It does this via a PLU Module installed within each emergency luminaire, which permits the panel the monitor all aspects of the light. 

The Pulse refers to the protocol used by the panel to talk to each light fitting.  This PLU also permits the panel to force the light in to emergency operation, hence how the panel tests and communicates with each light.

Working in Unison the emergency lighting test panel and the PLU are able to report on:

  • the communication with the light, and so diagnose a fault or break in the data cable between the panel and the light
  • the light level for the luminaire in both emergency and normal operating conditions.  This is measured via a fibre optic pointed at the luminaire light source
  • the battery level to indicate a fault with the battery
  • loss of mains supply which would indicate a fault with the mains supply loop

 For more information take a look at How does the PLU Module work?.