HikRobot CA Series, User Manual

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CA/CE-Series GigE Area Scan Camera
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User Manual
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Line 2 Configured as Input
With the condition of 100 Ω and 5 VDC, the logic level and electrical feature of configuring Line 2
as output are shown below.
Logic 1
Input Level
Logic 0
Input Level
Internal Logic
TDR TDF
Figure 9-6 Input Logic Level
Table 9-4 Electrical Feature of Line 2 Input
Parameter Name Parameter Symbol Value
Input Logic Level Low VL 0 VDC to 0.5 VDC
Input Logic Level High VH 1.5 VDC to 30 VDC
Input Rising Time TR 0.66 μs
Input Falling Time TF 0.05 μs

Make sure the input voltage is not from 0.5 VDC to 1.5 VDC as the electric status between
these two values are not stable.

The breakdown voltage is 30 VDC, and keep voltage stable.

To prevent damage to the GPIO pin, please connect GND first and then input voltage in Line 2.
Line 2 Configured as Output
When the environment temperature is 25 °C (77 °F), the relation among external voltage,
resistance and the output level low is shown below.
Table 9-5 Parameter of Output Logic Level Low
External Voltage External Resistance VL (GPIO2)
3.3 V 1 KΩ 160 mV