Basler A102f, User Manual

Page: 19 / 170

Camera Interface
BASLER A102
f
2-5
DRAFT
2.5 Input and Output Ports
2.5.1 Input Ports
A102
f
cameras are equipped with four physical input ports designated as Input Port 0, Input Port 1,
Input Port 2, and Input Port 3. The input ports are accessed via the 10 pin RJ-45 jack on the back
of the camera. See Table
2-2 and Figure 2-2 for input port pin assignments and pin numbering.
As shown in the schematic in Figure 2-3 , each input port is opto-isolated. The nominal input
voltage for the LED in the opto-coupler is 5.0 V (± 1.0 V). The input current for the LED is 5 to 15
mA with 10 mA recommended.
For each input port, a current between 5 and 15 mA means a logical one. A current of less than
0.1 mA means a logical zero.
By default, Input Port 0 is assigned to receive an external trigger (ExTrig) signal that can be used
to control the start of exposure. For more information about the ExTrig signal and for information
on assigning the ExTrig signal to a different input port, see Section
3.2.5 .
2.5.2 Output Ports
A102
f
cameras are equipped with four physical output ports designated as Output Port 0, Output
Port 1, Output Port 2, and Output Port 3. The output ports are accessed via the 10 pin RJ-45 jack
on the back of the camera. See Table
2-2 and Figure 2-2 for output port pin assignments and pin
numbering.
As shown in the schematic in Figure 2-3 , each output port is opto-isolated. The minimum forward
voltage is 2 V, the maximum forward voltage is 35 V, the maximum reverse voltage is 6 V, and the
maximum collector current is 100 mA.
A conducting transistor means a logical one and a non-conducting transistor means a logical zero.
By default, Output Port 0 is assigned to transmit an integration enabled (IntEn) signal that
indicates when exposure is taking place. For more information about the IntEn signal, see Section
3.4 .
By default, Output Port 1 is assigned to transmit a trigger ready (TrigRdy) signal that goes high to
indicate the earliest point at which exposure start for the next frame can be triggered. For more
information about the TrigRdy signal, see Section
3.3 .
The assignment of camera output signals to physical output ports can be changed by the user.
See Section
6.7.11 for more information about configuring output ports.
L
As stated above, the nominal input voltage for the LED on each input is +5 VDC. If
a 560 Ohm resistor is added to the positive line for an input, the input voltage can be
12 VDC. If a 1.2 or 1.5 kOhm resistor is added to the positive line for an input, the
input voltage can be 24 VDC.
L
By default, output ports 0, 1, and 2 are set to a low state after power on. Output port
3 is initially set to low but will go high approximately 100 to 300 ms after power on.
Output port 3 will remain high for approximately 750 ms and will then reset to low.