3
Electrical Connections
These Digital Gold detectors should be connected in accordance with the diagrams below. Both the Digital Output
and MLS connections are polarity-free however other MLS products require that polarity be maintained. The MLS
cable should be mains-rated, unscreened, twisted pair of at least 1.5mm CSA. For further information please refer
to Wiring Application Guide AN4001.
Please note that UltraLite versions of these detectors (suffix CWL7) do
not offer MLS functionality and cannot be connected using MLS cable.
These detectors are designed to control up to 25 DSI or DALI luminaires, a switched load of up to 6 Amps or a
combination of the two. When controlling DSI or DALI ballasts the ballast type 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 on the rear 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 have affect the operation of those lights that remain powered up and under the control of the detector.
When switching via the volt-free output multiple detectors may be connected in parallel provided the controlled
load does not exceed 6 Amps. If digital ballasts are also being controlled the digital outputs from each detector
must not be mixed even if they are of the same type.
Wiring Examples
Digital
Output
MLS
BUS
These Connections are Polarity-Free
1
2
1
2
Using OneSwitch, MLS*, Switched
and Digital Outputs
N
E
L
Permanent
or switched
supply
VOLT-
FREE
OUTPUT
LIVE
NEUTRAL
EARTH
ONESWITCH
DIMMING
Digital output
MLS Bus Connection
(Some MLS devices require
that polarity be maintained)
Momentary
push-to-make
switch
Please note that the Earth terminal has no internal connection
and is used for termination only.
Digital
Output
MLS
BUS
These Connections are Polarity-Free
1
2
1
2
Using Switched Output and MLS*
N
E
L
Permanent
or switched
supply
VOLT-
FREE
OUTPUT
LIVE
NEUTRAL
EARTH
ONESWITCH
DIMMING
MLS Bus Connection
(Some MLS devices require
that polarity be maintained)
NC
NC
Please note that the Earth terminal has no internal connection
and is used for termination only.
VOLT-
FREE
OUTPUT
NEUTRAL
LIVE IN
EARTH
ONE
SWITCH
NC
VOLT-
FREE
OUTPUT
NEUTRAL
LIVE IN
EARTH
ONE
SWITCH
NC
E
L
N
Permanent
or switched
supply
2 x MLS2421D In Parallel, using
Switched Output only
Any connection not shown is NO CONNECTION
Relay outputs may be connected together in
parallel to cover larger areas, however the
total load on all combined relay outputs
must not exceed 10 Amps.
* UltraLite-version detectors (suffix CWL7)
do not offer MLS functionality and cannot
be connected using MLS cable.
* UltraLite-version detectors (suffix CWL7)
do not offer MLS functionality and cannot
be connected using MLS cable.
LOAD
(MAX 10 AMPS)
LOAD
(MAX 10 AMPS)
LOAD
(Max 10 Amps)
