User guide

Page 8

3. SETUP

Fuse Replacement

CAUTION! The Blade™ QFX 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

Blade™QFXfuserequirereplacement,pleasecontactBlizzardLighting

for instructions, or to return your unit for service.

Connecting A Bunch of Blade™ QFX 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master/

slaveoperatingmode.Thecombinednumberofchannelsrequiredbyall

thexturesonaserialdatalinkdeterminesthenumberofxtures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 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