Installation
Redback Dimmer
Operator Manual V1.1
2 I n s t a l l a t i o n
2.1 Mounting Options
Redback may be installed in different
configurations to suit a range of applications.
2.1.1 Rack Mounting
The 2 RU versions of Redback are designed for
installation in standard 19" equipment racks,
touring cases, or rack sleeves, where access is
available to both the front and rear of the rack
cabinet.
The 4 RU versions are designed for installation
in standard 19" equipment racks, touring cases,
or rack sleeves, where access is available only
from the front of the rack cabinet.
Each Redback should be fixed to the equipment
rack by a minimum of four screws.
2.1.2 Wall Mounting
Reversing the side panels on 4RU versions
allows the rack ears to be used as wall mounting
brackets.
Each Redback should be fixed to the wall
mounting frame by a minimum of four screws.
2.2 Electrical installation
2.2.1 Safety
All electrical work must be carried out by a
suitably trained and qualified electrical
technician.
2.2.2 Power Supply
The Redback dimmer must be fed from a
suitably rated external circuit breaker.
In three phase installations the supply wiring and
overload protection should be suitable for loads
of up to 40 Amps per phase. The supply must be
in "wye" or "star" configuration with a neutral
connection.
Due to the large harmonic currents produced by
all phase-controlled dimmers, it is recommended
that the neutral cable should be rated to carry
currents up to 75 Amps.
In single phase installations the supply wiring
and overload protection should be suitable for
the maximum rating of the fitted input cable, but
should not exceed 75 Amps.
2.2.3 Load circuits
Load circuits should be suitable for loads of up
to 10 Amps per dimmer channel.
The minimum channel loading for reliable
smooth fading is a resistive load (incandescent
lamp) of 250 milliamps. This is the equivalent of
a 60 Watt lamp on a 220/240 Volt supply or 27.5
Watts on a 110/120 Volt supply.
2.3 Connecting DMX512 and RDM
DMX 512 (ANSI E1.11, DMX512-A) is the
industry standard for the transmission of digital
control signals between lighting equipment.
DMX is usually “looped” from one piece of
equipment to the next.
If the RDM (ANSI E1.20 Remote Device
Management) extensions to DMX 512 are to be
used to configure or control the Redback, all
distribution devices between the controller and
the Redback must support bi-directional DMX
512 data.
Where a Redback dimmer is the last device on a
DMX signal chain, the DMX standard requires
that a termination device must be plugged in to
the DMX
Through
socket.
See “DMX Explained and Typical Installations”
for more information.
2.4 Connecting MIDI (optional)
The standard 5-pin DIN MIDI (Musical
Instrument Digital Interface) input socket on the
rear allows any MIDI controller to set dimmer
levels using note velocity values.
As there is no MIDI
Thru
port on a Redback
dimmer, it must be the last device in a MIDI
control chain.
Warning
. No user controls or user serviceable
parts are located inside the Redback. Refer all
servicing to suitably qualified personnel.
.
Page 4
LSC Lighting Systems (Aust) Pty. Ltd
Summary of Contents for Redback 12 Channel
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