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3. SETUP
Fuse Replacement
CAUTION! The Motif Fresco™ utilizes a high-output switch-mode power
supply with an internal fuse. Under normal operating conditions, the fuse
should not require replacement. The fuse is field replaceable, however it is
an advanced procedure suited to qualified individuals. Should your fixture
require replacement, please contact Blizzard Lighting for instructions, or to
return your unit for service.
Connecting A Bunch of Motif Fresco™ Fixtures
You will need a serial data link to run light shows using a DMX-512 control-
ler or to run shows on two or more fixtures set to sync in master/slave
operating mode. The combined number of channels required by all the
fixtures on a serial data link determines the number of fixtures the data
link can support.
Fixtures on a serial data link must be daisy chained in one single line. Also,
connecting more than 32 fixtures on one serial data link without the use
of a DMX optically-isolated splitter may result in deterioration of the digital
DMX signal. The maximum recommended cable-run distance is 500 meters
(1640 ft). The maximum recommended number of fixtures on a serial
data link is 32 fixtures.
Data/DMX Cabling
To link fixtures together you'll need data cables. You should use data-
grade cables that can carry a high quality signal and are less prone to
electromagnetic interference.
For instance, Belden© 9841 meets the specifications for EIA RS-485 ap-
plications. Standard microphone cables will "probably" be OK, but note
that they cannot transmit DMX data as reliably over long distances. In any
event, the cable should have the following characteristics:
2-conductor twisted pair plus a shield
Maximum capacitance between conductors – 30 pF/ft.
Maximum capacitance between conductor & shield – 55 pF/ft.
Maximum resistance of 20 ohms / 1000 ft.
Nominal impedance 100 – 140 ohms
Motif Fresco™ User Manual Rev. B
Page 7
(c) 2016 Blizzard Lighting, LLC
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