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May 15, 2012 • Alcorn McBride TourTraXX User’s Manual • Rev 1.3
Discrete Input Control
The TourTraXX has a total of 8 discrete inputs on the rear of the unit which
can be set to accept Voltage Input (12-24VDC) or Contact Closure. Voltage
Input or Contact Closure is selected by configuration dipswitch #2 on the
side of the TourTraXX chassis. See the
Configuration Dipswitch
section of
this manual for configuration details.
When configured for contact closure, an input is triggered when a connection
is made between the positive and negative terminals of that input. No
external power supply is needed, so a simple switch or button wired between
the terminals can be used to trigger the input. Contact Closure should not be
used over long distances, anything over 15 feet should use inputs configured
for Voltage Input.
When TourTraXX is configured for voltage input, an external power supply
should be used to provide a 12-24vdc signal to the TourTraXX. Voltage
Input can trigger from much longer distances than contact closure and
because the inputs aren’t sharing the power supply of the TourTraXX (as
with contact closure), the wiring can be further isolated.
When triggered, inputs execute whatever standard control command has
been assigned to them. TraXX Config, the configuration software for your
TourTraXX, can be used to assign commands (such as play, stop, etc) to
your TourTraXX’s discrete inputs. See the
Command Protocol
section of
this manual for a list of supported commands.
By default, the rear control inputs are configured to play files 1-8 to channels
1-8. For instance, input 3 will play file 3 to channel 3 when triggered. With
the default input configuration, files will play and loop for as long as the
input is maintained.
Input Groups
If you need more than 8 discrete inputs for your application, you can set up
an Input Group. Input Groups are an advanced feature of TourTraXX that
allows you to use combination of inputs to trigger up to 255 different actions.
Once you use the TraXX Config software to add inputs to a group, the input
group can be assigned to respond to different combinations of inputs
triggered simultaneously.
For example, if you add all 8 inputs to input group 1, you can assign
commands to respond to the 8bit numbers created by the 255 different
combinations of inputs.
