Cheetah Python Cameras User Manual | CoaXPress (CXP) Interface
August 27, 2019
Page
20
of
86
Rev 1.0
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 V and 24 V. The minimum input current is 3.3 mA.
Figure 5:
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 V) or TTL
(5.0 V). The total maximum input current
must not
exceed 2.0 mA.
Figure 6:
IN2 electrical connection
C. Output OUT 1 – TTL
Output OUT1 is a 5 V TTL compatible signal and the maximum output current
must not
exceed 8 mA.
Figure 7:
OUT1 LVTTL electrical connection
D. Output OUT 2 – Solid state relay, optically isolated
Output OUT2 is an optically isolated switch. There is no pull-up voltage on either contact.
External pull-up voltage of up to 25 volts is required for operation. Output is not polarity
sensitive. AC or DC loads are possible. The voltage across OUT2 Contact 1 and OUT 2 Contact
2
must not
exceed 25 V and the current through the switch
must not
exceed 50 mA. On
resistance is less than 5 Ohms.
IN1 RTN
(pin 10)
IN1
(pin 8)
IN2
(pin 9)
IN2 RTN
(pin 11)
OUT1
(pin 7)
OUT1 RTN
(pin 6)