Cheetah Pregius Camera with Camera Link – User Manual
July 6, 2018 Page 16 of 64 Rev 1.1
2.2 Electrical Connectivity
The Cheetah camera has two external inputs, IN 1 and IN 2. Input IN1 is optically isolated
while input IN2 accepts low voltage TTL (LVTTL). The camera provides two general-
purpose outputs. Output OUT1 is a 5v TTL (5.0 Volts) compatible signal and output OUT2
is opto-isolated. The following figures show the external input electrical connections and
the external output electrical connections:
A. Input IN 1- Opto-Isolated
Input signals IN1 and IN1 Rtn are optically isolated, and the voltage difference between
the two must be positive between 3.3 and 24 volts.
Figure 4: IN1 electrical connection.
B. Input IN 2 LVTTL
Input signals IN2 and IN2 Rtn provide interfaces to a TTL or LVTTL input signal. The signal
level (voltage difference between the inputs IN2 and IN2 Rtn) must be LVTTL (3.3 volts) or
TTL (5.0 volts). The total maximum input current must not exceed 2.0 mA.
Figure 5: IN2 electrical connection.
C. Output OUT 1 LVTTL
Output OUT1 is a 5v TTL (5.0 Volts) compatible signal and the maximum output current
must not exceed 8 mA.
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