Matrox Iris GTX Series, Installation And Technical Reference, Page: 49 / 100

Connecting a light controller and the analog intensity control signal 49
Connecting a sinking light controller (PNP Pin)
If your lighting controller has a PNP pin (sinking input signal), it expects to be
connected in a PNP topology, whereby the connected, controlling auxiliary output
signal sources the current and the input pin sinks current. To do so, connect the
sinking light controller to an auxiliary output signal and the analog intensity
control signal (AUX_AREF_OUT7) of Matrox Iris GTX as shown below.
1
Note that in this configuration, the other two auxiliary output signals
(AUX_OPTOIND_OUTn) from Matrox Iris GTX are not available.
1. When the auxiliary output signal is on, the circuit between
AUX_OPTOIND_OUT0 and AUX_OPTOIND_OUT_COMMON is closed.
This allows current to flow from AUX_OPTOIND_OUT0 to
AUX_OPTOIND_OUT_COMMON, and to the trigger input of the lighting con-
troller. When the auxiliary output signal is off, the circuit is open and no current flows
through.
Connection
to power
(Standard 24 V)
+24 V
0 V
Generic light controller
Intensity (optional)
+24 VDC
Trigger (PNP/Active High)
GND
The above drawing
shows the
connector on the
camera
1
2
3
4
5
6
7
8
9
10
11
12
Connection to Matrox Iris GTX
Digital IO and power connector
AUX_OPTOIND_OUT1
-VDC
AUX_OPTOIND_OUT0
AUX_OPTOIND_IN4
AUX_OPTOIND_IN6
AUX_OPTOIND_IN5
AUX_OPTOIND_IN_COMMON
AUX_OPTOIND_IN3
+VDC
AUX_OPTOIND_OUT2
AUX_AREF_OUT7
AUX_OPTOIND_OUT_COMMON
Signal Name
Connector of the camera
M12 12 pin (female)
12
11
10
9
8
7
6
5
4
3
2
1
Pin#
Blue wire
Black wire
Brown wire
Green wire