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DALI Power


DALI BUS POWER



The DALI bus is a shared Power and DALI bus.    A minimum of 14 volts is recommended for operation, with up to 260 mA allowed.  Operation at lower currents is recommended, as long as the voltage does not fall below 14 volts.

DALI Devices can be powered by the bus up to 4 mA each - most devices need less than 2 ma.  This allows shared power and data on 2 wires.    Some DALI masters provide power, others do not.  Here is a list of Power supply options we have tested.


Device supplying power
 Current
supplied
disable power
Max count of
DALI devices
Max Distance
22 AWG
Max Distance
18 AWG
AL-PWS-8D
65 mA
Jumper
32
350 ft
 1200
AL-DALI-HAT v1
65 mA
Jumper
32
350 ft
 1200
ATX LED Hub
AL-DALI-HAT v2
3 modes
Auto detect
Off
Software
*
*
 *
80 mA Software 40
300 ft
 1000
220 mA Software 64
80 ft
 330
AL-Struct-12
65 mA
Jumper
32
350 ft
1200
RELV4-16
260 mA
No
64
80 ft
330

















* means that multiple DALI power supplies can be wired in parallel, up to 260 mA total

DALI bus devices that provide power can be wired in parallel up to 260 mA total.   if the RELV4-16 is used - disable power in the ATX LED product in the list above.

Hardware Version Notes
    - AL-WS-DR2 V1 and V2 can only drive 140 mA
    - AL-WS-010v needs 6 mA to operate
    - AL-DALI-8B multiswitch needs 3 mA + 1 mA per LED active
    - AL-DALI-HAT-2I and 4I have no power supply built in



DALI BUS POWER with External Power supply
Topology





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