User Manual

Page 7

3. SETUP

Fuse Replacement

CAUTION! The LB Hex™ 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eldreplaceable,

howeveritisanadvancedproceduresuitedtoqualiedindividuals.

Should your LB Hex™ fuse require replacement, please contact Bliz-

zard Lighting for instructions, or to return your unit for service.

Connecting A Bunch of LB Hex™ 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xturessettosyncinmas-

ter/slave operating mode. The combined number of channels required

byallthexturesonaserialdatalinkdeterminesthenumberofx-

tures the data link can support.

Fixtures on a serial data link must be daisy chained in one single line.

Also,connectingmorethan32xtures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xturesonaserialdata

linkis32xtures.

Data/DMX Cabling

Tolinkxtures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.

applications. Standard microphone cables will “probably” be OK, but

note that they cannot transmit DMX data as reliably over long distanc-

es. 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