Line 2 Wiring - HikRobot CA Series User Manual

9.2.3 Line 2 Wiring

As bi-direction I/O Circuit, Line 2 can be used as both input signal and output signal.
Line 2 Configured as Input
When the camera uses Line 2 as hardware trigger source, wirings are different with different
external devices of input signal.
 PNP Device
It is recommended to use 330 Ω pull-down resistor.
 NPN Device
If the VCC of NPN device is 24 VDC, and it is recommended to use 1 KΩ to 4.7 KΩ pull-up resistor.
If the VCC of NPN device is 12 VDC, and it is recommended to use 1 KΩ pull-up resistor.
 Switch
If the VCC of switch is 24 VDC, and it is recommended to use 1 KΩ to 4.7 KΩ resistor to protect
circuit.
CA/CE-Series GigE Area Scan Camera·User Manual
Camera Power
Supply
Bi-direction
I/O
Camera Power
Ground
Figure 9-13 Line 2 Connecting to PNP Device as Input
Camera Power
Supply
Bi-direction
I/O
Camera
Power Ground
Figure 9-14 Line 2 Connecting to NPN Device as Input
PWR VCC
Device Power
Ground
GND of PWR and
VCC
PWR VCC
Device Power
Ground
GND of PWR
and VCC
48
Device Power
Supply
PNP Device
Signal Line
Device Power
Supply
NPN Device
Signal Line