ProLights CROMOBEAM250 - Linking Multiple Units; DMX Configuration Options; DMX Mode Selection; DMX Line Connection Guide

CROMOBEAM250
12
3.6 LINKING
Several units may be interconnected in order to control all further slave units to the same eect of the
master unit.
1. Connect the DMX OUT of the master unit via 3-pole XLR cable to the DMX IN of the rst slave unit.
2. Connect the DMX OUT of the rst slave unit to the DMX IN of the second slave unit, etc. until all units are
connected in a chain.
3.7 DMX CONFIGURATIONS
CROMOBEAM250 is equipped with 2 DMX conguration.
• Press the MENU button and select, via the directional buttons, the [Intro] menu choice, then press the
ENTER button to conrm the choice.
• Press the UP and DOWN buttons to select [Channels] menu voice and conrm the choice by pressing the
ENTER button.
• Select a DMX conguration: [Basic] or [Adavnced], and press ENTER button.
The tables on page 12 indicate the operating mode and DMX value. The CROMOBEAM250 is equipped with
3-pole XLR connections.
3.8 DMX MODE
• Press the MENU button and select, via the directional buttons, the [Intro] menu choice, then press the
ENTER button to conrm the choice.
• Press the UP and DOWN buttons to select [Channels] menu voice and conrm the choice by pressing the
ENTER button.
• Select [DMX512], and press ENTER button.
3.9 CONNECTION OF THE DMX LINE
DMX connection employs standard XLR connectors. Use shielded pair-twisted cables with 120Ω impedance
and low capacity.
The following diagram shows the connection mode:
1
3
21 2
3
Pin1 : GND - Shield
Pin2 : - Negative
Pin3 : + Positive
DMX - INPUT
XLR plug
DMX - OUTPUT
XLR socket
ATTENTION
The screened parts of the cable (sleeve) must never be connected to the system’s earth, as this would cause
faulty xture and controller operation.
Over long runs can be necessary to insert a DMX level matching amplier.
For those connections the use of balanced microphone cable is not recommended because it cannot trans-
mit control DMX data reliably.