NKT Photonics Koheras ADJUSTIK, Product Manual

Page: 86 / 105

Connecting the optical output
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Figure 58 Trigger input circuit
Output trigger
When the trigger feature is set as an output, the trigger pin should be connected
to an external pull-up resistor. The diagram
Figure 58
shows the trigger output
circuit.
Figure 59 Trigger output circuit
The high and low voltage levels are defined by the following equations:
Vhigh = Vexternal
Vlow = Vexternal x 22k / (22k + R)
Connecting the optical output
Before connecting the optical output connector, ensure to check the connector
tip using a fiber microscope. Using the microscope, check for any deformities,
damage, residue or other contaminants at the optical tip of the connector. Either