Matrox Iris GTX Series, Installation And Technical Reference, Page: 48 / 100

48
Chapter 2: Powering and connecting to your Matrox Iris GTX
Connecting a sourcing light controller (NPN pin)
If your lighting controller has an NPN pin (sourcing input signal), it expects to
be connected in an NPN topology, whereby the connected, controlling auxiliary
output signal sinks the current and the input pin sources the current. To do so,
connect the sourcing light controller to an auxiliary output signal and the analog
intensity control signal (AUX_AREF_OUT7) of Matrox Iris GTX as shown
below
1
.
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, before sinking to ground. When the auxil-
iary output signal is off, the circuit is open and no current flows.
Connection
to power
(Standard 24 V)
+24 V
0 V
Generic light controller
Intensity (optional)
+24 VDC
Trigger (NPN/Active Low)
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