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Redback® Programmable Control System
5.0 LECTURE THEATRE SETUP
Fig 5.0 Illustrates a simple configuration which may be used in a Lecture Theatre using a projector, powered projector
screen, DVD player, laptop computer and the A 6541 wallplate and A 6505A relay hub.
Redback® A 6541
LAPTOP
DVD
A 1052 IR REPEATER
Power and A/V Wiring: In this example the A 6541 wall plate is located at the lecturn and the A 6505A Relay Hub is
situated in the ceiling space where power for the realy hub, projector and projector screen are located. The A 6541 Wall
Plate is powered through the single Cat5/6 cable connected back to the A 6505A. The laptop and DVD player are situated
and powered at the lecturn and their corresponding VGA and HDMI output cabling is connected back to the projector.
Control Wiring: The projector is controlled by RS232 commands from the A 6505A serial output 1, the projector screen
is controlled by RS232 commands from the A 6505A serial output 2. The RS232 control cabling requires only the TX and
GND connection from the A 6505A and the RX and GND connection at the projector and projector screen. The DVD play-
er is controlled by IR codes sent from the A 6505A to an IR repeater (such as Altronics A 1052). The lighting is controlled
by the relay outputs of the A 6505A which are voltage free closing contacts. Figure 8 cable would be sufficient for all of
these connections.
PIR Trigger: This input can be triggered by either a PIR (passive infrared sensor), door beam trigger, floor sensor or a
simple reed switch on a door. Any form of closing contact can be used to trigger this input. The A 6541 wallplate can be
programmed to perform commands which are activated once this contact is triggered. This makes it ideal for any number
of applications, including in the case of the Lecture Theatre example being used to configure the theatre when someone
enters the room.
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Redback® Proudly Made In Australia
(Cat5/6 Cable 50m Maximum)
PIR CONTACT
Redback® A 6505A
Relay OUT
IR
1
2
3
PROJECTOR
RS232 IN
VGA In
HDMI IN
Fig 5.0
24V DC PLUGPACK
(MINIMUM 1A)
LIGHTING CONTROL
PROJECTOR SCREEN
www.redbackaudio.com.au
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