Setup; Fuse Replacement; Dmx-512 Connections; Data/Dmx Cables - Blizzard Lighting Solar Ray User Manual

3. SETUP

Fuse Replacement

With a phillips head screwdriver, unscrew the fuse holder out of its housing. Remove the
damaged fuse from its holder and replace with exact same type of fuse. Reattach the fuse
holder, and then reconnect power.

DMX-512 Connections

You can use a serial data link to run light shows using a DMX-512 controller or to run
shows on two or more units set to sync in master/slave operating mode. The combined
number of channels required by all units on a serial data link determines the number that
the data link can support.
Equipment setup in a serial data link must be daisy chained in one single line. Also, con-
necting more than 32 units on one serial data link without the use of a DMX optically-iso-
lated splitter may result in deterioration of the digital DMX signal. The maximum recom-
mended cable-run distance is 500 meters (1640 ft). The maximum recommended number
of items daisy chained on a serial data link is 32 units.
Data/DMX Cabling
To link your equipment together via DMX in/out 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 characteris-
tics:
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

Power Linking

You can link up to 9 Solar Ray™ units (max) at 110V, or 18 (max) units at 220V. Never
exceed this number. Power linking cords can be purchased separately.
Solar Ray™ User Manual Rev. A
Page 7
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