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3. S
ETUP
AC Power
The DMX-4 has an auto-ranging power supply and it can work with an input voltage range of 100 to 240
VAC, 50/60 Hz. To determine the product's power requirements (circuit breaker, power outlet, and wiring),
use the current value listed on the label affixed to the product's back panel, or refer to the product's
specifications chart. The listed current rating indicates the product's average current draw under normal
conditions.
•
Always connect the product to a protected circuit (circuit breaker or fuse).
Make sure the product has an appropriate electrical ground to avoid the risk of
electrocution or fire.
•
To eliminate unnecessary wear and improve its lifespan, during periods of non-
use completely disconnect the product from power via breaker or by
unplugging it.
Never connect the product to a rheostat (variable resistor) or dimmer circuit, even if
the rheostat or dimmer channel serves only as a 0 to 100% switch.
Fuse Replacement
The DMX-4 is equipped with replaceable fuses. Each channel has its own 7 A fuse that runs through the
20 A main power supply.
1.
Disconnect the product from power.
2.
With a #2 Phillips-head screwdriver, unscrew the fuse holder cap from the housing.
3.
Remove the blown fuse from the holder and replace with a fuse of the exact same type and rating.
4.
Screw the fuse holder cap back in place and reconnect power.
Disconnect the product from the power outlet before replacing the fuse.
Dimmer/Switch Operation
Dimmer/switch packs are primarily intended for lamp-based PAR cans. Connecting a fixture equipped with
an electronic (switching) power supply to a dimmer/switch pack may damage the fixture or make it work
erratically. The improved DMX-4's design now allows you to switch on and off loads equipped with
electronic power supplies, such as LED-based luminaries or laser fixtures. However, the DMX-4 must be in
Switch mode before connecting loads of this type to it. Please see the instructions on how to set the DMX-
4 in
Dimmer or Switch Mode
.
Always make sure that the DMX-4 is in Switch mode before connecting a load
an electronic power supply to it. Doing otherwise could damage the
The DMX-4 is optimized to also operate with LED-based products.
Page 6 of 14
S
ETUP
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.
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DMX-4 User Manual Rev. 3
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