Cognex In-Sight 9000 Série Mode D'emploi page 12

Connect the External Light Cable (9912 Only)
The vision system's LIGHT connector is used to connect the External Light cable to
an external lighting device, providing power and strobe control. The External Light
cable can be connected to either a continuous or strobed lighting device.
Note: In-Sight 9902L line scan vision system's external LIGHT connector is not
supported.
1. Remove the protective cap from the LIGHT connector, if present.
2. Connect the External Light cable's M12 connector to the vision system's
LIGHT connector.
Note:
If interference from Electrical Fast Transient (EFT) is experienced
under extreme factory conditions, a Fair-Rite ferrite (part number
0431176451) should be added as close to the vision system as
practical, with the External Light cable looped through it. For example:
3. Connect the other end of the Light cable to an external lighting device (for
example, a strobe light).
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