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Power can also be provided externally through the GPIO interface: 12 V nominal (8 - 24 V). Power consumption is
3 W maximum.
If both power sources are connected the camera always uses external power over the GPIO connector.
7.2
GPIO Electrical Characteristics
Both the opto-isolated input and output have over current protection.
The output is open collector and thus requires a pull-up resistor to operate. The rise time and bias current will be
determined by the resistor value chosen. If the camera is generating an output signal that approaches the rise time
plus the fall time of the opto-isolated circuit, care must be taken to optimize the pull-up resistor chosen to minimize
the rise time while still remaining within the current limits of the output circuit.
The opto-isolated specifications listed below are applicable when power to the camera is provided through the
interface and not through the GPIO.
5/4/2017
©2015-2017 FLIR
Integrated Imaging
Solutions Inc.
All rights reserved.
Note: Some systems, especially those with laptop computers or
longer cable lengths, may not provide adequate power through
the USB 3.0 cable which could result in intermittent operation.
The use of external power through the GPIO is required for
these systems.
Warning! To avoid damage, connect the OPTO_GND pin first
before applying voltage to the GPIO line.
Warning! Prolonged use of the camera outside of the Operating
Range described below may lead to unexpected behavior and
should be avoided.
Operating Range
Description
Opto-isolated Input Voltage
Opto-isolated Output Voltage
Opto-isolated Output Current
3.3 V Output Current
FLIR Blackfly
Minimum
Maximum
0 V
30 V
0 V
24 V
25 mA
120 mA
®
S Installation Guide
7 Input/Output Control
30
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