HikRobot GigE - Electrical Features of Non-Isolation

GigE Area Scan Camera User Manual
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10.1.2 Electrical Features of Non-Isolation
Input Signal
The Line 0 of CU series devices is non-isolated input, and Line 2 of all series devices are
non-isolated bi-directional I/O that can be configured to input signal. The internal circuit of
non-isolated input is shown below.
*
GPI
VCC
Figure 10-5 Internal Circuit of Non-Isolated Input
With the condition of 100 Ω resistance and 5 VDC voltage, the logic level and electrical
features of configuring Line 2 to input signal are shown below.
Logic 1
Input Level
Logic 0
Input Level
Internal Logic
TDR TDF
Figure 10-6 Input Logic Level
Table 10-4 Input Electrical Feature
Parameter Name
Parameter Symbol
Value
Input Logic Level Low
VL
0 VDC to 0.3 VDC
Input Logic Level High
VH
3.3 VDC to 24 VDC
Input Falling Delay
TDF
< 1 μs
Input Rising Delay
TDR
< 1 μs