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Electrical Connections
Detectors should be connected in accordance with the diagram below.
Digital Mid Range Detectors are designed to control up to 25 DSI or DALI ballasts, a switched load of up to
10 Amps or a combination of the two. When controlling DSI or DALI ballasts the ballast types must not be
mixed. The DSI or DALI input terminals on the ballasts should be connected in parallel with each other and to
the Polarity-Free Digital Output terminals of the detector. Each DSI or DALI luminaire is controlled completely
by its digital input and therefore would normally have a permanent power supply. Turning the power off to
some lights within a control circuit will not affect the operation of those lights that remain powered and under
the control of the detector.
When switching via the relay output, multiple MLS2500Ds' relay outputs may be connected in parallel
provided the controlled load does not exceed 10 Amps. If digital ballasts are also being controlled, the digital
outputs from different detectors must never be connected one to another, even if they are of the same type.
Live Out
Live In
Neutral
Earth
D1
D2
MLS 1
MLS 2-core Bus Cable
MLS 2
Note: A means of disconnection must be incorporated into the fixed wiring in accordance with the current
wiring regulations.
SWITCHED LOAD
10 Amps Maximum
Digital Dimming Signal Pair to Ballasts
3
Always check product label before wiring
Live
Mains
Neutral
Supply
Earth
Do NOT connect to Mains
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