Prosilica GS Technical Manual V2.2.2
35
Camera interfaces
In 1 – opto-isolated
In 1 is optically isolated and can be used in electrically noisy environments to
prevent false trigger events. Tie Camera GND to Isolated IO GND to complete
the trigger circuit. Compare to the non-isolated trigger, In 1 has a longer
propagation time. It can be driven from 5 to 24 V with a minimum current
source of 10 mA. See
Camera I/O opto-isolated user circuit example
for more
information.
In 2 – non-isolated
In 2 is non-isolated and can be used when a faster trigger is required and when
environmental noise is inconsequential. The required signal is low voltage TTL
3.3 V. Tie Signal GND to Camera GND to complete the trigger circuit. See
for more wiring information.
Output signals
Output signals can be assigned to a variety of internal camera signals via
software. They can be configured to active high or active low. The internal
camera signals are listed as follows:
Out 1 – opto-isolated
Out 1 is optically isolated and should be used in noisy environments. Out 1
requires a pull up resistor of greater than 1 K
Ω
to the user’s 5 V logic supply.
Tie Camera GND to Isolated IO GND to complete the external circuit. See
Camera I/O opto-isolated user circuit example
for more information.
Caution
Do not exceed 5.5 V on signal inputs unless otherwise
indicated.
Exposing
Corresponds to when camera is integrating light
Trigger Ready Indicates when the camera is ready to accept a trigger signal
Trigger Input A relay of the trigger input signal used to “daisy chain” the
trigger signal for multiple cameras
Readout
Valid when camera is reading out data
Imaging
Valid when camera is exposing or reading out
Strobe
Programmable pulse based on one of the above events
GPO
User programmable binary output
