3
Digital
Output
MLS
BUS
These Connections are
Polarity-Free
1
2
1
2
MLS2021D
Using OneSwitch, MLS*, Switched and
Digital Outputs
N
E
L
Permanent
or switched
supply
VOLT-
FREE
OUTPUT
LIVE
NEUTRAL
EARTH
LOAD
(MAX 6 AMPS)
ONESWITCH
DIMMING
Digital output
MLS Bus Connection
(Some MLS devices require
that polarity be maintained)
Momentary
push-to-make
switch
Digital
Output
MLS
BUS
These Connections are
Polarity-Free
1
2
1
2
MLS2021D
Using Switched Output and MLS*
N
E
L
Permanent
or switched
supply
VOLT-
FREE
OUTPUT
LIVE
NEUTRAL
EARTH
LOAD
(MAX 6 AMPS)
ONESWITCH
DIMMING
Optional MLS Bus Connection
(Some MLS devices require
that polarity be maintained)
NC
NC
2 x MLS2021D
In Parallel, using Switched Output only
LOAD
(Max 6 Amps)
N
E
L
Permanent
or switched
supply
VOLT-
FREE
OUTPUT
VOLT-
FREE
OUTPUT
LIVE IN
LIVE IN
NEUTRAL
NEUTRAL
EARTH
EARTH
Any connection not shown is NO CONNECTION
ONE
SWITCH
NC
NC
ONE
SWITCH
Relay outputs may be connected together in parallel to cover larger areas, however the
total load on all combined relay outputs must not exceed 6 Amps.
Please note that the Earth terminal has no internal
connection and is used for termination only.
Please note that the Earth terminal has no internal
connection and is used for termination only.
* 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.
