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R5906790 /04
Athena
162
B.1 About General Purpose Inputs & Outputs
(GPIO)
The Barco Cinema Controller and the Barco ICMP(-X) are equipped with GPIO ports. The electrical
specifications described in this chapter are the same for both GPIO ports.
General Purpose inputs
The Barco Cinema Controller and the Barco ICMP (-X) have each eight (8) opto-isolated general purpose
inputs available. These inputs are used to trigger the execution of macro files. For more explanation about the
association of a macro to a GPI, consult the user guide of the Communicator.
Input voltage
The inputs can be directly driven from a TTL or CMOS output.
•
The shape of the pulse must be rectangular.
•
The duration of the pulse must be at least 50 milliseconds (shorter pulses are considered as a switch
bounce)
•
Minimum voltage : V
min
= +5V
•
Maximum voltage : V
max
= +18V
External power supply
When interfacing with contact closure outputs, an external power supply needs to be provided. Depending
upon the configuration a suitable pull-up resistor needs to be added as well.
GPIn P
GPIn N
Input to projector
Internal projector
1k1
I
I
+5V
to
+18V
GPIn P
GPIn N
Input to projector
Internal projector
1k1
+5V
to
+18V
Image B-1
Cables
When long cable connections are required the use of shielded cables with twisted pairs is recommended. One
twisted pair is to be assigned to each GP Input pair.
How to make the connection
When the power supply used to provide the DC voltage is isolated from ground (for example in the case of an
AC adapter) it is recommended that the minus pole of that power supply is connected to ground (or to the
projector chassis). This will avoid high common mode voltages at the projector GP Inputs. If that same power
supply is used for other parts of the system, take care not to create ground loops. In any case when shielded
cables are used that shield should be connected to the projector chassis.
General Purpose outputs
The Barco Cinema Controller and the Barco ICMP (-X) have each eight (8) opto-isolated outputs available.
Four (4) of the outputs on the Cinema Controller are dedicated for TI. The other general purpose outputs can
be controlled via software.
Summary of Contents for Athena
Page 1: ...ENABLING BRIGHT OUTCOMES Installation manual Athena ...
Page 8: ...R5906790 04 Athena 8 ...
Page 28: ...R5906790 04 Athena 28 Installation process ...
Page 36: ...R5906790 04 Athena 36 Physical installation ...
Page 58: ...R5906790 04 Athena 58 Input Communication ...
Page 100: ...R5906790 04 Athena 100 Starting up ...
Page 126: ...R5906790 04 Athena 126 Lamp House ...
Page 130: ...R5906790 04 Athena 130 Preventative maintenance actions ...
Page 151: ...R5906790 04 Athena 151 1 Image 16 18 Removal and installation of the projector covers ...
Page 152: ...R5906790 04 Athena 152 Removal and installation of the projector covers ...
Page 160: ...R5906790 04 Athena 160 Specifications ...
Page 168: ...R5906790 04 Athena 168 Pin configurations ...
Page 169: ...169 R5906790 04 Athena Environmental information C ...
Page 178: ...Glossary R5906790 04 Athena 178 ...
Page 183: ...R5906790 04 Athena 183 ...