Switches reference 137
Output pullup resistor switches
The output pullup resistor switches (SW6[1] through SW6[3]) provide an
on-board pullup for each auxiliary output signal. They are used when routing a
Matrox Iris GTR auxiliary output signal to a Matrox Iris GTR auxiliary input
signal using the output-to-input bypass switches (SW5). Alternatively, they can
be used when routing an auxiliary output signal to a third-party device that
requires a pullup between itself and the Matrox Iris GTR.
❖ Note that the amount of resistance provided by the Matrox Iris GTR
breakout board is 2.5 K
Ω
,
which is suitable for a 24 V power supply. If another
level of resistance is required, an external pullup resistor must be used.
Switch Description (ON)
SW6[1] Adds an on-board pullup resistor to the AUX_OPTOIND_OUT2 signal.
SW6[2] Adds an on-board pullup resistor to the AUX_OPTOIND_OUT1 signal.
SW6[3] Adds an on-board pullup resistor to the AUX_OPTOIND_OUT0 signal.
1
2
3
Output pullup
resistor switches
OFF/ON
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