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Motif™ Metro User Manual Rev. A
© 2020 Blizzard Lighting, LLC
Fuse Replacement
The Motif™ Metro 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 the fuse require replacement, please
contact Blizzard Lighting for instructions, or to return your unit for service.
Connecting A Bunch of Motif™ Metro Fixtures
You will need a serial data link to run light shows using a DMX-512 controller
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
applications. 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
Before replacing a fuse, disconnect the power cord.
ALWAYS replace with the same type and rating of fuse.
3. SETUP