N93-582-02 Issue 1 NH Page 7 of 28 © Protec Fire Detection plc 2015
3.0 Glossary of Terms
Panel
The Digilite® DL500 control panel.
Luminaire
Emergency lighting lamp fitting.
Device or Address
A luminaire or interface connected to the Digilite® DL500 communications loop which can be controlled by
and transmits data to the Digilite® DL500.
Test Group or Group
Individual luminaire addresses may be programmed into one of 28 test groups. This is done to ensure that
emergency lighting coverage is maximised when luminaires are being tested (adjacent luminaires are usually
programmed into different groups). Testing is performed on a group basis.
Maintained luminaire
A light fitting which is always illuminated, either from a local mains supply, or from a backup supply if the
local mains supply fails.
Non-maintained luminaire
A light fitting which only illuminates using a backup supply when the mains supply to it is disconnected.
Disablement
When a device, or group is disabled it is prevented from entering test mode and cannot generate faults, or
failed tests.
Historic Event log
A chronological record of salient events on the system (e.g. group tests, luminaire failures etc).
Self Contained
An emergency luminaire which contains its own battery to provide backup power in the event of a local
mains failure.
Central Battery
Central Battery (CB) system in which, rather than each emergency luminaire containing its own battery, they
are fed from a larger central battery.
Sub Circuit Monitor
A device used to monitor local mains circuits, and report back if they fail to the Digilite® DL500. Depending
on programming this may trigger specific loop types to enter emergency mode.
Static Inverter
A centralised power system in which, rather than each emergency luminaire containing its own backup
battery, they are fed from a larger central battery backed power source.
Functional Test
A short term test, performed once a month, to confirm that the lamp is functioning correctly.
Duration Test
A test on the luminaire, performed once a year, to confirm that the lamp is functioning correctly and will
maintain correct output over the rated duration of the product.
Downloading
Refers to the transfer of data from a PC to the Digilite® DL500.
Uploading
Refers to the transfer of data from the Digilite® DL500 to a PC.
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