Routing input signals to Matrox Iris GTR 111
Routing a Matrox Iris GTR auxiliary output signal to an
auxiliary input signal
You can route Matrox Iris GTR auxiliary output signal 0 to 2 to Matrox Iris GTR
auxiliary input signal 3 to 6, respectively (auxiliary input signal 0 can be routed
to auxiliary input signal 3 or 4). This is primarily used for testing, allowing you
to receive what was sent on the Matrox Iris GTR auxiliary output signals. To route
a Matrox Iris GTR auxiliary output signal to a Matrox Iris GTR auxiliary input
signal, perform the following:
1. Connect the power and the digital I/O signals of your Matrox Iris GTR to the
Matrox Iris GTR breakout board by following the steps in the Powering and
connecting section, earlier in this appendix.
2. For each auxiliary output signal to route to an auxiliary input signal, switch on an
output-to-input bypass switch.
The output-to-input bypass switch box (SW5) has 4 switches, each one
representing one of the four auxiliary input signals of your Matrox Iris GTR. For
example, to route Matrox Iris GTR auxiliary output signal 2
(AUX_OPTOIND_OUT2) to auxiliary input signal 6
(AUX_OPTOIND_IN6), turn on output-to-input bypass switch 1 (SW5[1]).
Repeat for each auxiliary output signal to be re-routed to an auxiliary input signal.
For more information on the output-to-input bypass switch box (SW5), see the
Output-to-input bypass switches subsection of the Switches reference section, later in
this appendix.
Each auxiliary input signal should have only one input source. For example, when
an auxiliary output signal is re-routed to an auxiliary input signal, it should always
be the only source of input for that signal, and not have to compete with the signal
from a third-party device or a push button.
3. If the IN_COM_TERM selector (SW6[4]) is set to ON and the IN_COM
selector switch (SW2) is set to +VDC (that is, the auxiliary input signal is sourcing
and the auxiliary output signal is sinking), no pullup is required.
If, however, the IN_COM_TERM selector (SW6[4]) is set to ON and the
IN_COM selector switch (SW2) is set to -VDC (that is, the auxiliary input signal
is sinking and the auxiliary output signal is sourcing), then for each auxiliary
output signal routed to an auxiliary input signal, you must enable a pullup resistor.
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