19
Pin Description
Pin
Designation
Direction
Description
1
RS485-A
I/O
RS485-A
2
RS485-B
I/O
RS485-B
3
Ext_Trigger
INPUT
External trigger input
(
3.3V-20V
)
4
Exposure_timing OUTPUT
Control signal output
5
GND
GND
System ground
6
Ext_OUT
OUTPUT
Control signal output from processor
Hardware Trigger Function
Hardware trigger mode is available only when the camera works at slave mode, in
slave mode the camera will wait for the hardware trigger signal on Ext_Trigger.
The EXT_Trigger signal is to driver the MOSFET, External input trigger signal voltage
should range 3.3V-20V, driving current ability should be more than 5mA;
You can use input pin Ext_Trigger to send a hardware trigger signal to the camera. The
hardware trigger can be used to trigger the acquisition start.
A hardware debouncer
circuit shall be considered on the EXT_Trigger line.
By default, the hardware trigger is
rising edge
activated, refer to below exposure
timing:
T1
Frame start
EXT_Trigger
Camera Exposure
T1
Frame start
The requirement to T1 should be from 100us to 2ms.
Exposure_timing Pin Description
This pin is an output indicates the whole exposure period of the camera. The internal
circuit of this pin with a pull-up resistor 430
Ω
.The pull up voltage is 5V. At low level,
Summary of Contents for DCAM560C
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