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48 Chapter 2: Connecting peripherals to the unit
Important
Connecting devices to the auxiliary I/O
interface
If you have purchased the integrated-unit version of Matrox 4Sight X, you can
connect input and output devices to the auxiliary I/O interface connector, located
on the front panel of the unit. In either case, a custom cable is required (refer to
the Auxiliary I/O connector subsection of the Pinout descriptions of front panel
connectors section, in Appendix B: Technical reference).
Voltage from external devices connected to the auxiliary I/O interface connector
should not exceed 24 V.
For details regarding signal characteristics, see the Auxiliary I/O interface section,
in Appendix B: Technical reference.
Connecting external devices to the output signals
of the auxiliary I/O interface
You can control a wide variety of external devices with the output signals of the
Matrox 4Sight X auxiliary I/O interface, such as programmable logic controllers
(PLC), transistor-transistor logic (TTL) devices, and strobe lamps.
Each of the output signals of Matrox 4Sight X uses an open collector (sink driver);
instead of transmitting a high or low voltage state, a current from a connected
device is either terminated (grounded) or not. The power source must be provided
by the connected device because Matrox 4Sight X output signals are not capable
of providing (sourcing) voltage to drive a device. In the circuit depicted below, the
connected device is terminated.
Output signal
Matrox 4Sight X
Each of the sink drivers of Matrox 4Sight X uses a 100 mA fuse to protect it from
connected external devices.
100 mA
Connected
external
fuse
device
GND
Power
source
+24 V
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