13
10
External GND
Pin Description
Pin
Designation
Direction
Description
1
VCC
INPUT
12-24V power supply input
2
Ext_Trigger
INPUT
External trigger input
（
3.3V-24V
）
3
GND
GND
System ground
4
Ext_INPUT
INPUT
Reserved for external input
（
3.3V-24V
）
5
CAN_H
Positive signal of CAN BUS
6
Ext_OUTPUT
OUTPUT
Reserved for external output
7
CAN_L
Negative signal of CAN BUS
8
Exposure_timing OUTPUT
Indicates the exposure timing
9
GND
GND
System ground
10
External GND
GND
Reference to external voltage
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 opto-isolated, to driver the diodes, External input trigger
signal voltage should range 3.3V-24V, moreover the signal driving capacity should be
more than 60mA
.
Camera input signal internal circuit
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.
The polarity of the hardware trigger can be predefined by software command.
By default, the hardware trigger is low level activated, refer to below exposure timing:
